Abstract
A new method for improvement of 1,2-indandione-treated latent fingermarks on thermal paper will be described in this paper. Treatment with conventional techniques like ninhydrin in petroleum ether or DFO solution produces a black color on the thermosensitive side of thermal paper. The new method using 5,6-dimethoxy-1,2-indandione with polyvinyl pyrrolidone (PVP) can reduce this dark staining without removing the thermosensitive layer and parts of the developed fingermarks. An advantage of this method is that the developed fluorescent fingermarks appear in sharp lines and high contrast . The developed fingermarks can be observed when excited in the 535 nm region and using an orange-red goggles. There is no background coloration in this method. In addition, some tests were performed, leading to an optimized working solution, which charges the paper with a minimum of chemicals, is cheap, and enables a large quantity of papers to be treated in a short time and without involving any pre- or post treatment.
Fluorescent disperse dyes reflectance spectra, relative strength and perfor...eSAT Journals
Abstract
This study attempted to focus on some important properties of regular fluorescent disperse dyes on polyester/cotton fabric. A 60/40 p/c blended woven fabric was used to dye only the polyester part in pad-thermosol dyeing process (continuous method) with different concentrations of fluorescent disperse dyes. The selected dyestuff was Terasil Flavine 10GFF belonging to coumarin class of fluorescent dye. This paper mainly aims to investigate Spectral parameters such as Reflectance curve, K/S values (with Kubelka-Munk equation) and Relative strength percentage with different concentrations of fluorescent dyes. Different color fastness properties like wash, water, rubbing, perspiration and light fastness were also assessed to evaluate performance of polyester substrate dyed with fluorescent dyes.
Keywords: Fluorescence, disperse dye, pad-thermosol dyeing, reflectance, k/s value, relative strength, color fastness.
Development of Emulsion Paint from Trimethylol Urea/Polystyrene waste Copolym...IOSR Journals
Urea formaldehyde that is trimethylol urea (TMU) was synthesized and copolymerized with polystyrene waste (PS) to form TMU/PS copolymer binder for emulsion paint formulation. Formaldehyde emission and some physical properties of both TMU and TMU/PS were investigated. The resulting copolymer TMU/PS gave a better resin compared to pure TMU in terms of brittleness, low water resistance and formaldehyde emission. The emulsion paint formulated from both TMU and TMU/PS passed pH, viscosity, flexibility, opacity, gloss and storage stability tests. Paint from pure TMU failed adhesion, hardness, tackiness, resistance to blistering and drying time tests while that of TMU/PS paint recorded a pass in all the tests. Both paints were unaffected by the salt medium but surface defect were observed in the case of TMU films in alkali and acid solutions. TMU/PS films were unaffected by both the acid and alkali solutions. This study provides a potential route for both VOC reduction in coating surfaces and environmental pollution from waste polystyrene disposal.
ADSORPTION OF CONGO RED DYE AND METHYLENE BLUE DYE USING ORANGE PEEL AS AN A...Ajay Singh
To reduce the concentration of the dye activated charcoal is used as an adsorbent but due to the high cost of activated charcoal, the purpose of my project was to find an alternative low-cost adsorbent.
Fluorescent disperse dyes reflectance spectra, relative strength and perfor...eSAT Journals
Abstract
This study attempted to focus on some important properties of regular fluorescent disperse dyes on polyester/cotton fabric. A 60/40 p/c blended woven fabric was used to dye only the polyester part in pad-thermosol dyeing process (continuous method) with different concentrations of fluorescent disperse dyes. The selected dyestuff was Terasil Flavine 10GFF belonging to coumarin class of fluorescent dye. This paper mainly aims to investigate Spectral parameters such as Reflectance curve, K/S values (with Kubelka-Munk equation) and Relative strength percentage with different concentrations of fluorescent dyes. Different color fastness properties like wash, water, rubbing, perspiration and light fastness were also assessed to evaluate performance of polyester substrate dyed with fluorescent dyes.
Keywords: Fluorescence, disperse dye, pad-thermosol dyeing, reflectance, k/s value, relative strength, color fastness.
Development of Emulsion Paint from Trimethylol Urea/Polystyrene waste Copolym...IOSR Journals
Urea formaldehyde that is trimethylol urea (TMU) was synthesized and copolymerized with polystyrene waste (PS) to form TMU/PS copolymer binder for emulsion paint formulation. Formaldehyde emission and some physical properties of both TMU and TMU/PS were investigated. The resulting copolymer TMU/PS gave a better resin compared to pure TMU in terms of brittleness, low water resistance and formaldehyde emission. The emulsion paint formulated from both TMU and TMU/PS passed pH, viscosity, flexibility, opacity, gloss and storage stability tests. Paint from pure TMU failed adhesion, hardness, tackiness, resistance to blistering and drying time tests while that of TMU/PS paint recorded a pass in all the tests. Both paints were unaffected by the salt medium but surface defect were observed in the case of TMU films in alkali and acid solutions. TMU/PS films were unaffected by both the acid and alkali solutions. This study provides a potential route for both VOC reduction in coating surfaces and environmental pollution from waste polystyrene disposal.
ADSORPTION OF CONGO RED DYE AND METHYLENE BLUE DYE USING ORANGE PEEL AS AN A...Ajay Singh
To reduce the concentration of the dye activated charcoal is used as an adsorbent but due to the high cost of activated charcoal, the purpose of my project was to find an alternative low-cost adsorbent.
Aimed to investigate the potential of untreated jute stick charcoal as an alternative adsorbent for the treatment of dye containing wastewater. Removal of methylene blue dye from aqueous solution using jute stick charcoal has been investigated. Liquid phase adsorption experiments were conducted. Batch adsorption studies are carried out by observing the effect of experimental parameters, namely, pH, adsorbent dose, contact time and initial methylene blue concentration. The maximum removal of MB dye was 90.57% at pH 9, contact time 120 min, adsorbent dose 3 g/L and 20 mg/L initial dye concentration. Kinetic studies showed that the biosorption of MB followed Pseudo second-order kinetics. The adsorption isotherms are described by the Langmuir and Freundlich isotherms. It was found that the Freundlich equation fit better than the Langmuir equation. The maximum adsorption capacity obtained from Langmuir isotherm equation at was 29.33 mg/g. To conclude, jute stick charcoal holds promise for methylene blue removal from aqueous solution and can be used for other dyes removal and applicable in dyeing industries in Bangladesh where centralized effluent treatment plant is absent.
Deep Eutetic Solvents for Biomass Activation by Sauli Vuoti, Jaakko Hiltunen et al., VTT
ACel Programme Seminar June 5, 2015
http://fibic.fi/events/acel-program-seminar-jun-5-cellulose-reactivity-and-recycling-of-ionic-liquids
Dye removal by adsorption on waste biomass - sugarcane bagasseMadhura Chincholi
The dye solution of Methylene blue was adsorbed onto bioadsorbent- sugarcane bagasse. Parameters studied were pH, contact time, adsorbent dosage, initial dye conc.
Removal of Methylene Blue from Aqueous Solution by Adsorption using Low Cost ...ijsrd.com
The present study deals with removal of methylene blue (basic dye)from aqueous solution using a low cost activated carbon prepared from Delonix regia(gulmohar seed pods).Batch adsorption studies were conducted by varying the contact time adsorbent dosage and pH
Comparative Study for Adsorptive Removal of Coralene Blue BGFS Dye from Aqueo...IJERA Editor
Textile industries represent biggest impact on the environment due to high water consumption and waste water discharge as government control water pollution by setting strength regulation for waste water discharge, removal of color from waste water becomes more and more essential and attractive. Adsorption technology is very efficient in treatment of textile effluent. In this paper comparison of adsorption phenomena of textile dye Anthraquinone blue onto two different adsorbents MgO nano powder and Fe2O3 amorphous powder has been studied for removal of said dye from aqueous solutions. The adsorption of Anthraquinone blue on adsorbents occurs by studying the effects of adsorbent amount, dye concentration, contact time and pH of solution. All results found that MgO nano powder and Fe2O3 provide a fairly high dye adsorption capacity, which combined with their fulfilment of pollution control board’s standards, lack of pollution, lower environmental hazard and low-cost makes them promising for future applications. The present work also provides information on optimum value of different operating parameter for dye removal by two adsorbent.
Nanocrystalline Nickel Zinc Ferrite as an efficient alcohol sensor at room te...IJEAB
In the present communication, nanocrystalline nickel zinc ferrite (NZF) has been successfully synthesized by temperature and spin controlled coprecipitation techinique. The structural and surface morphological characterizations of the sample have been analyzed by means of Powder X-ray Diffraction (PXRD) and Field Emission Scanning Electron Microscopy (FESEM). The minimum crystalline size of prepared NZF sample calculated from Scherer’s formula and is found to be 25 nm. FESEM images exhibit the porous nature of the sensing material with a number of active sites. In a comparative study on the sensing characteristics of nanostructured NZF pellet towards three primary alcohols viz. ethanol, propanol and butanol, the maximum sensitivity is found to be nearly 90% for 1000 ppm of the ethanol vapour at room temperature. The sensing response followed the order of ethanol > propanol > butanol with respect to time. The experimental results show that nanostructured NZF is a promising material for alcohol sensor. The sensor responses are quite stable and highly reproducible even at room temperature.
Abstract
A person's stature is an identifying characteristic that is often used in forensic investigation. Footprint is the one of the valuable physical evidence encountered in the crime scenes and examination of barefoot impressions is important especially in developing countries like India, Malaysia where majority of the rural population like to walk barefooted because of socio-economic and climatic reasons. Foot impressions are still found at crime scenes, since offenders often tend to remove their footwear either to avoid noise or to gain better grip in climbing walls, etc., while entering or exiting. Most of the foot/foot print studies were conducted on mixed population. The researchers have cautioned that the people from different races and regions of a country bear different morphological features depending upon their geographical distribution and primary racial characteristics and hence a single formula cannot represent all parts of that country or world. The present study aims to estimate stature from bilateral footprints collected from 320 (160 males, 160 females) consenting adult Ibans, an indigenous group residing in Sarawak state, east Malaysia. Informed consent and Human Ethical Approval were obtained. The height of the individuals and footprints were collected following the standard procedure. The data obtained were analyzed with PASW 20 computer software and derived regression formulae to estimate stature from footprint lengths of Iban ethnics. The result of the investigation revealed that all footprint lengths exhibit statistically positive significant correlation with stature (p< 0.001). Correlation coefficient (R) values are found to be higher in the pooled sample (0.861–0.887) when compared with males (0.753–0.789) and females (0.728–0.790). The regression formulae derived for the pooled sample can be used to estimate stature when the sex of the footprint remains unknown, as in real crime scenarios.
Aimed to investigate the potential of untreated jute stick charcoal as an alternative adsorbent for the treatment of dye containing wastewater. Removal of methylene blue dye from aqueous solution using jute stick charcoal has been investigated. Liquid phase adsorption experiments were conducted. Batch adsorption studies are carried out by observing the effect of experimental parameters, namely, pH, adsorbent dose, contact time and initial methylene blue concentration. The maximum removal of MB dye was 90.57% at pH 9, contact time 120 min, adsorbent dose 3 g/L and 20 mg/L initial dye concentration. Kinetic studies showed that the biosorption of MB followed Pseudo second-order kinetics. The adsorption isotherms are described by the Langmuir and Freundlich isotherms. It was found that the Freundlich equation fit better than the Langmuir equation. The maximum adsorption capacity obtained from Langmuir isotherm equation at was 29.33 mg/g. To conclude, jute stick charcoal holds promise for methylene blue removal from aqueous solution and can be used for other dyes removal and applicable in dyeing industries in Bangladesh where centralized effluent treatment plant is absent.
Deep Eutetic Solvents for Biomass Activation by Sauli Vuoti, Jaakko Hiltunen et al., VTT
ACel Programme Seminar June 5, 2015
http://fibic.fi/events/acel-program-seminar-jun-5-cellulose-reactivity-and-recycling-of-ionic-liquids
Dye removal by adsorption on waste biomass - sugarcane bagasseMadhura Chincholi
The dye solution of Methylene blue was adsorbed onto bioadsorbent- sugarcane bagasse. Parameters studied were pH, contact time, adsorbent dosage, initial dye conc.
Removal of Methylene Blue from Aqueous Solution by Adsorption using Low Cost ...ijsrd.com
The present study deals with removal of methylene blue (basic dye)from aqueous solution using a low cost activated carbon prepared from Delonix regia(gulmohar seed pods).Batch adsorption studies were conducted by varying the contact time adsorbent dosage and pH
Comparative Study for Adsorptive Removal of Coralene Blue BGFS Dye from Aqueo...IJERA Editor
Textile industries represent biggest impact on the environment due to high water consumption and waste water discharge as government control water pollution by setting strength regulation for waste water discharge, removal of color from waste water becomes more and more essential and attractive. Adsorption technology is very efficient in treatment of textile effluent. In this paper comparison of adsorption phenomena of textile dye Anthraquinone blue onto two different adsorbents MgO nano powder and Fe2O3 amorphous powder has been studied for removal of said dye from aqueous solutions. The adsorption of Anthraquinone blue on adsorbents occurs by studying the effects of adsorbent amount, dye concentration, contact time and pH of solution. All results found that MgO nano powder and Fe2O3 provide a fairly high dye adsorption capacity, which combined with their fulfilment of pollution control board’s standards, lack of pollution, lower environmental hazard and low-cost makes them promising for future applications. The present work also provides information on optimum value of different operating parameter for dye removal by two adsorbent.
Nanocrystalline Nickel Zinc Ferrite as an efficient alcohol sensor at room te...IJEAB
In the present communication, nanocrystalline nickel zinc ferrite (NZF) has been successfully synthesized by temperature and spin controlled coprecipitation techinique. The structural and surface morphological characterizations of the sample have been analyzed by means of Powder X-ray Diffraction (PXRD) and Field Emission Scanning Electron Microscopy (FESEM). The minimum crystalline size of prepared NZF sample calculated from Scherer’s formula and is found to be 25 nm. FESEM images exhibit the porous nature of the sensing material with a number of active sites. In a comparative study on the sensing characteristics of nanostructured NZF pellet towards three primary alcohols viz. ethanol, propanol and butanol, the maximum sensitivity is found to be nearly 90% for 1000 ppm of the ethanol vapour at room temperature. The sensing response followed the order of ethanol > propanol > butanol with respect to time. The experimental results show that nanostructured NZF is a promising material for alcohol sensor. The sensor responses are quite stable and highly reproducible even at room temperature.
Abstract
A person's stature is an identifying characteristic that is often used in forensic investigation. Footprint is the one of the valuable physical evidence encountered in the crime scenes and examination of barefoot impressions is important especially in developing countries like India, Malaysia where majority of the rural population like to walk barefooted because of socio-economic and climatic reasons. Foot impressions are still found at crime scenes, since offenders often tend to remove their footwear either to avoid noise or to gain better grip in climbing walls, etc., while entering or exiting. Most of the foot/foot print studies were conducted on mixed population. The researchers have cautioned that the people from different races and regions of a country bear different morphological features depending upon their geographical distribution and primary racial characteristics and hence a single formula cannot represent all parts of that country or world. The present study aims to estimate stature from bilateral footprints collected from 320 (160 males, 160 females) consenting adult Ibans, an indigenous group residing in Sarawak state, east Malaysia. Informed consent and Human Ethical Approval were obtained. The height of the individuals and footprints were collected following the standard procedure. The data obtained were analyzed with PASW 20 computer software and derived regression formulae to estimate stature from footprint lengths of Iban ethnics. The result of the investigation revealed that all footprint lengths exhibit statistically positive significant correlation with stature (p< 0.001). Correlation coefficient (R) values are found to be higher in the pooled sample (0.861–0.887) when compared with males (0.753–0.789) and females (0.728–0.790). The regression formulae derived for the pooled sample can be used to estimate stature when the sex of the footprint remains unknown, as in real crime scenarios.
An interesting-coexistence-of-a-classical-nodular-and-an-adenoid-ulcerous-bas...Annex Publishers
Abstract
Basal cell carcinoma is the most frequent malignant tumor of the skin, and the most common carcinoma found in some countries. The main clinical subtypes of BCC are nodular, superficial, pigmented and morpheaform. The majority of the lesions appear on the head and neck, with a particular predilection on the upper central part of the face. Here we report a 62 year-old woman with two different morphological types of BCC which developed in the same area. The tumors have developed two months apart on the right paranasal region in close proximity. With the clinical examination and histopathological examination of punch biopsy specimens, the diagnoses of the lesions were confirmed as a nodular and an adenoid BCC. The tumors were totally removed with surgical excision. Neither recurrence nor new lesion was observed on the lesional or near areas in a 24-month follow-up period. To the best of our knowledge the presence of the two different morphological types of BCC in the same anatomical location has not been reported previously.
Abstract
Age estimation of unknown human cadavers is important in setting a crime investigation, such as homicide, suicide or in mass disaster because it can guide forensic investigators to the correct identity among a large number of possible matches. More and more the courts ask for medico-legal age estimations of unknown human cadavers by forensic dentistry. This research project in establishing the applicability of radiographic and morphological parameter's used in forensic dentistry in a Portuguese adult population. The main goal is to compare the chronological age with the dental age estimation by radiographic and morphological parameters. To achieve this objective, thirty-five single-rooted teeth were analysed. Radiographic analysis was made through the program of digital radiology software Kodak RVG intra-oral 2200 with exposure factors 60-70 KVp and 7mA. The morphological parameter, translucent dentin was assessed in intact and sectioned tooth. The relationship between the coefficients was calculated between the age and the ratios with the level of inclusion, p< 0.05. There was no statistically significant difference between the chronological age and the age estimation by each method. The coefficient of Pearson for the direct measurements of the translucent dentin methodology for sectioned teeth gives the better correlation with the age estimate (r=0.86).
JOURNAL OF VETERINARY SCIENCE & ANIMAL HUSBANDRYAnnex Publishers
Journal of Veterinary Science and Animal Husbandry (JVSAH) is a scientific journal which has topics associated with fundamental and aspects of veterinary science and animal husbandry. JVSAH has a special feature of publishing special issues in experimental clinical research, veterinary medicine and current research. At Annex Publishers, we tend to publish quality articles and try our best to provide the most effective analysis journal to the scientific community.
Journal of Nutrition and Health Sciences is an open access journal that publishes peer reviewed research articles and short communications in all aspects of nutrition. This Journal encompasses the full spectrum of nutritional science including nutritional requirements, public health nutrition, epidemiology, dietary surveys, body composition, energetics, appetite, obesity, ageing and metabolic studies.
Journal of Forensic Science & Criminology (JFSC) is an open access, significant and reliable source of contemporary knowledge on advancements in the field of forensic science. JFSC publishes peer reviewed research articles, critical reviews and short communications focused on forensic science and criminology. JFSC encompasses the full spectrum of forensic science including forensic biology, forensic chemistry, cyber forensics and crime scene investigation
Journal of Genetic Mutations and Disorders (JGMD) is an open access, peer reviewed journal which provides advanced researches including Genetics of Infectious Diseases, Genealogical Tracing, Stem Cell Research, Gene mapping with three-point crosses, Genetic linkage and genetic maps. JGMD publishes original research, review articles in all aspects of genetic mutations and disorders
Childhood obesity has been described as the main health-related problem in developed countries, due to its link with physical, social and psychological consequences with an increased risk for developing metabolic and cardiovascular diseases in adulthood.
All the pupils of both sexes attending the second year of all the primary schools in Pavia, Northern Italy, were recruited (n=470) for this study. Measurements of weight, height and waist circumference (WC) were taken under standard conditions. Body Mass Index (BMI) and waist-to-height-ratio (W/HtR) were computed and sex specific percentile values for BMI, WC and W/HtR were calculated and compared with the same percentiles available for different countries.
The results show that according to Cole’s cut-off point reference standards, 12.5% and 9.0% of boys and girls respectively are overweight, 4.7% and 5.2% respectively are obese. The WC mean value is equal to 60.0 ± 6.0 cm in boys and 59.0 ± 6.7 cm in girls. Using different 90th reference worldwide standard percentiles for WC as a comparison, the prevalence of our children with WC > 90th percentile is very different. The W/HtR mean value of the total sample is 0.46 ± 0.03. Assuming a cutoff of 0.5, 87.6% of the pupils have a W/HtR value ≤ 0.5, while 12.4% of the subjects have a value > 0.5, showing abdominal obesity among 55 children at an early age.
Our results point out the need for specific preventive and treatment interventions by identifying and implementing effective strategies, policies, and nutritional education programs in order to decrease the prevalence rate of obesity as well as the risk of metabolic disorders.
Quantitative Analysis of 30 Drugs in Whole Blood by SPE and UHPLC-TOF-MSAnnex Publishers
Abstract
An Ultra-High Pressure Liquid Chromatography Time-of-Flight Mass Spectrometry (UHPLC-TOF-MS) method for quantitative analysis of 30 drugs in whole blood was developed and validated. The method was used for screening and quantification of common drugs and drugs of abuse in whole blood received from autopsy cases and living persons. The compounds included: alprazolam, amphetamine, benzoylecgonine, bromazepam, cathine, cathinone, chlordiazepoxide, cocaine, codeine, clonazepam, 7-aminoclonazepam, diazepam, nordiazepam, flunitrazepam, 7-aminoflunitrazepam, ketamine, ketobemidone, 3,4-Methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MDMA), methamphetamine, methadone, morphine, 6-monoacetylmorphine, nitrazepam, 7-aminonitrazepam, oxazepam, temazepam, tramadol, O-desmethyltramadol, and zolpidem. Blood samples (200 μL) were subjected to Solid Phase Extraction (SPE). Target drugs were quantified using a Waters ACQUITY UPLC system coupled to a Waters SYNAPT G2 TOF-MS apparatus. Extraction recoveries ranged from 41% (7-aminoclonazepam) to 111% (ketamine) and matrix effects ranged from -13% (temazepam) to 50% (7-aminonitrazepam). For all compounds, a quadratic polynomial was applied for fitting the calibration curves. Lower Limits of Quantification (LOQ) ranged from 0.005 to 0.05 mg/kg. Satisfactory precisions below 15% and accuracies within 85-115% were obtained for all compounds at concentrations exceeding the LOQ. In conclusion, we present a validated UHPLC-TOF-MS method for simultaneous quantification of 30 drugs in whole blood with a run time of 15 min using 200 μL of whole blood.
Keywords: Drugs of abuse, UHPLC-TOF-MS, Whole blood, SPE, Quantification
The flesh-fly-sarcophaga-(liopygia)-crassipalpis-macquart-1839-as-an-invader-...Annex Publishers
Abstract
We present an indoor forensic case that occurred in spring 2013 in Cosenza (southern Italy). The entomological evidence collected at the scene consisted of Calliphoridae (Calliphora vicina, Lucilia sericata), Sarcophagidae (Sarcophaga crassipalpis), Fanniidae (Fannia scalaris) and Muscidae (Hydrotaea ignava). The minimum Post Mortem Interval (mPMI) was calculated by relating the entomological evidence to data available for Diptera species in the area and to our knowledge of the development of flies used as forensic indicators in Calabria. We report S. crassipalpis as a corpse invader for the first time in Italy.
Keywords: Forensic case; Flies; S. crassipalpis; mPMI; Southern Italy
Abstract
Here in a systematic, accurate and reliable method, Head-Space Gas Chromatography-Mass Spectrometry (HS-GC/MS) was developed to determine blood carboxyhemoglobin (COHb%), in order to investigate deaths related to CO exposure especially involving blood and hepatic tissues. Using a column packed with molecular sieve, COHb levels were quantified down to 0.2% in small blood samples quickly and showed good reproducibility with RSD of the COHb < 1%. COHb% in hepatic samples stored at different temperatures (-20 °C for 1- 2 years, 0 °C, and 18 °C for two months) can be determined even when the samples are decomposed. The 3-min procedure requires only 0.25 mL of blood sample or 1.0 g of hepatic tissue each time. The technique has a clear advantage over other methods such as UV spectrophotometry.
Keywords: Carbon monoxide poisoning; COHb; Decomposed hepatic tissues; Headspace gas chromatography/mass spectrometry (HS-GC /MS)
Abstract
Rocky Mountain spotted fever, Rickettsia Rickettsii (RMSF) is a reoccurring disease in Arizona and Sonora and a public health problem due to the high risk medical complications it provokes. In the region it is transmitted by the bite of the Rhipicephalus sanguineus tick, found in dogs. This tick transmits Rickettsia rickettsii bacteria. Following an incubation period of 3-14 days, it causes acute, non-specific effects early on (fever, headache and rash) that -if not diagnosed and treated in time can be serious or cause death. Death is primarily associated with two factors: (a) delay in diagnosis, and (b) doxycycline, a highly effective antibiotic treatment which is inexpensive and simple to administer is delayed. If doxycycline is not provided before the 5th day after the symptoms begin, the patient can worsen and present with dark purple spots on the body, mostly hands and soles, wrists and ankles as well as have heart, hepatitis, renal, central nervous symptoms and other multiple organ complications. RMSF should be considered a medical priority and a public health problem at the regional level with a network of underlying factors. To prevent and control RMSF in Arizona and Sonora, public health interventions will need to address medical challenges associated with a number of social, political, and environmental factors.
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Causes for syncope are multifaceted. Hormonal etiology, specifically hypothyroidism, is associated with cardiac arrhythmias [1]. Sinus bradycardia, low voltage, nonspecific T-wave changes and dissociative atrioventricular (AV) abnormalities are some of descriptive electrocardiographic features [2]. In the majority of well know clinical presentations complete AV block requires the insertion of a permanent pacemaker. However hypothyroidism related bradycardia and consequential symptomatic AV blocks could be reversible with timely and proper management.
We report a case of severe hypothyroidism resulting in insertion of transient pacemaker with favorable clinical course and fully reversible complete AV block after accordant pharmacological hormonal substitution.
In this study, we focused on the effect of β-glucan supplementation of children with chronic respiratory problems. We measured the levels of cortisol, salivary IgE and cotinine in 56 children and evaluated the effect of 30 day supplementation with 100 mg/day oral dose of yeast-derived β-glucan. Our results showed strong decrease of cotinine and cortisol levels in saliva of β-glucan-supplemented children. The increase of total salivary IgE levels in both groups was not statistically significant. The positive effects of complex curative treatment using β-glucan were accompanied by increased physical endurance and by significant reduction of negative clinical problems of affected children.
Collagen and bone fat are important resources in the food industry. It is essential that these primary products are odor- and taste free. Extensive de-odourization processes are used during bone fat & collagen processing to eliminate any off-flavors that might be present. Regular sensory evaluation performed by specially trained panels in combination with GC-MS analysis ensures product quality is not compromised.
Ninhydrin
The synthesis of ninhydrin (originally described as 1,2,3-triketohydrindene, but also referred to as 1,2,3-indanetrione)
First reported by Professor Siegfried Ruhemann, of the University Chemical Laboratories at Cambridge University, England, in 1910.
The marks developed by ninhydrin can vary in colour from reddish purple to deep purple, being influenced by the composition of the mark and the substrate it is deposited on.
Ninhydrin Analogs
An analog is a chemical compound that has a similar structure and similar chemical properties to those of another compound, but differs from it by a single element or a group.
The dual goals of producing such an analog are to produce a compound that has intense, visible colored development (as good as or superior to ninhydrin) as well as a superior room temperature fluorescence.
Potential of Neem Leaf Powder as Bio Adsorbents for Dye Colour Removalijtsrd
In this study, two types of eco friendly and low cost bio adsorbents, Neem leaf powder NLP and acid treated Neem leaf powder TNLP were prepared for the removal of dye color from Congo red solution. The physicochemical parameters of the prepared absorbents were measured. The structural features of these absorbents were analyzed by FTIR, XRD, and SEM. These experiments were conducted with different process parameters such as adsorbent dosage and agitating time using batch adsorption method. Firstly, the dosage amount of adsorbents was optimized for constant shaking for one hour and it was observed that the maximum percent adsorption was found at 91 of 0.4 g for NLP and 76 of 0.4 g for TNLP. The optimum dosage amount of adsorbents, 0.4 g was selected for further study. After optimizing the adsorbent dosage, the optimum agitating time was observed at 60 min with the percent removal of 91 for NLP and 76 for TNLP. From this research, it was observed that NLP and TNLP can be used as bio adsorbents to remove the color of the dye solution. Thet Thet Wai | Ei Mon Aung | Nyein Chan Kyaw "Potential of Neem Leaf Powder as Bio-Adsorbents for Dye Colour Removal" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd27987.pdfPaper URL: https://www.ijtsrd.com/engineering/chemical-engineering/27987/potential-of-neem-leaf-powder-as-bio-adsorbents-for-dye-colour-removal/thet-thet-wai
Effect of aqueous suspensions of titanium dioxide in photoreactor withAmeer Al-Ameedee
The study performed to assess the effect of titanium dioxide using (Photoreactor) with the source of radiation on the color change of the
three contemporary dental fillings by composite resin material. The resins were divided into three groups head of considering the type of
charge and each group of which is composed of five discs and each disc thickness of 2 mm and diameter of 5 mm and manufactured by
the mold of Teflon material and then been refined and soften the disc surface and stored in distilled water for one week at 37 °C in order
to complete the polymerization. After the completion of the first week is staining the surface of disks and putting it in a solution of iodine
mouth wash (AVALON pharma
®
) at 37 °C for a period of just one week after the completion of this week has been directed drive and put
it in aqueous suspension consisting of titanium dioxide in Photoreactor Radiation with 355 NM periods of time 0, 5, 10, 15 and 30
seconds. Colorimetric readings were taken of the tablets based on, before staining substance iodine solution, after staining discs textured
iodine solution and after treatment disks Palmalq water for titanium dioxide. In addition, the absorbance was measured after each period
of time and put the disks. Palmalq watery results were analyzed statistically. There were significant effects on pay chromatography and the
palace of color where are different for each group from the other and come the second group of the most influential change chromatography
and minors chromatography and then finished second the third set. Finally, comes the first group, as well as influenced by absorbance
time in extrusive and different for each group of the three groups of disk attributed to their chemical composition
applications of nanotechnology (nanoparticles) in food packaging, mainly focusing on enhancement of barrier properties, antimicrobial food packaging, active packaging, quality monitoring through intelligent packaging, etc.
Use of a Fluorescent Schiff’S Base as Developing Agent for Latent Finger Printsijtsrd
During investigations of a crime, the first thing that a forensic team looks for is the finger prints left by the culprits. These finger prints may be visible or latent. Various methods are used for the development of these latent fingerprints on different surfaces. Amongst these methods, powder method is still the most preferred one in forensic investigations due to its simplicity and efficiency. In this paper we report the application of a UV fluorescent schiff’s base as an efficient organic compound in various powder formulations for the visualization of latent finger prints on different absorbent and non absorbent surfaces. The results obtained showed clear ridge details in almost all the cases. The benefit of using this schiff’s base in powder formulations over the earlier used powders lies in the fact that it is economical, does not contain any heavy metal and can be used on objects of various colours. Further the visualisation does not require any specific UV lamp or filter to take the photographs. Krishan Kumar Arora | Sarita Passey "Use of a Fluorescent Schiff’S Base as Developing Agent for Latent Finger Prints" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020, URL: https://www.ijtsrd.com/papers/ijtsrd38031.pdf Paper URL : https://www.ijtsrd.com/chemistry/other/38031/use-of-a-fluorescent-schiff’s-base-as-developing-agent-for-latent-finger-prints/krishan-kumar-arora
Ninhydrin Based Visible Spectrophotometric Determination of GemigliptinRatnakaram Venkata Nadh
A simple method is described to determine the amount of gemigliptin in bulk and tablet formulation by visible spectrophotometry. Basis of the proposed method is the reaction of the primary amine present on gemigliptin with ninhydrin in alkaline pH (alkaline borate buffer) medium to produce a purple color (Ruhemann’s purple) which has maximum absorption at 558 nm. The method was validated as per the current ICH guidelines. The obtained regression equation (y = 0.0148x+0.0011) in the range of 5-30 μg mL-1 has a good correlation coefficient (> 0.999). As the method does not require any separation, it is rapid and simple. The recovery levels of the drug were in the range of 99.73 – 99.96. This method is a green method as it no organic solvents were employed
Ninhydrin Based Visible Spectrophotometric Determination of GemigliptinRatnakaram Venkata Nadh
A simple method is described to determine the amount of gemigliptin in bulk and tablet formulation by visible spectrophotometry. Basis of the proposed method is the reaction of the primary amine present on gemigliptin with ninhydrin in alkaline pH (alkaline borate buffer) medium to produce a purple color (Ruhemann’s purple) which has maximum absorption at 558 nm. The method was validated as per the current ICH guidelines. The obtained regression equation (y = 0.0148x+0.0011) in the range of 5-30 μg mL-1 has a good correlation coefficient (> 0.999). As the method does not require any separation, it is rapid and simple. The recovery levels of the drug were in the range of 99.73 – 99.96. This method is a green method as it no organic solvents were employed
Developing Latent Fingerprints on Wet Surfaces with a Fluorescent Schiffs Bas...ijtsrd
The fingerprints left by the perpetrators are the first thing a forensic team searches for during a crime investigation. These prints could be visible or hidden also known as latent . The development of these latent fingerprints on various surfaces is done using a variety of approaches. An important and useful method, most commonly used in forensic investigations for wet surfaces involves Small Particle Reagent method. In present work, we report the use of a UV fluorescent Schiffs base as an effective organic compound which has been employed as a small particle reagent. It has been used for the visualisation of latent finger prints on various non absorbent surfaces. The advantage of employing this Schiffs base as a small particle reagent over previously utilised dyes is that it is less expensive, contains no heavy metal, and may be used on a variety of surfaces. Furthermore, while taking images, visualisation does not necessitate the use of a particular UV lamp or filter. Krishan Kumar Arora | Sarita Passey | Ruby Mishra "Developing Latent Fingerprints on Wet Surfaces with a Fluorescent Schiff's Base as SPR" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd46390.pdf Paper URL : https://www.ijtsrd.com/chemistry/other/46390/developing-latent-fingerprints-on-wet-surfaces-with-a-fluorescent-schiffs-base-as-spr/krishan-kumar-arora
Journal of Proteomics & Geneomics (JPG) is an instructional journal providing a chance to researchers and scientists to explore the advanced and latest research developments within the field of Proteomics and Geneomics. Journal of Proteomics & Geneomics publishes the best quality scientific articles amalgamating broad vary of fields together with the fields associated with Proteomics & Geneomics.
Journal of Obesity and Overweight (JOO) is a peer reviewed open access journal. It is dedicated to increase knowledge, fostering research, and promoting better treatment for people with obesity. It includes subjects like nutrition medicine, clinical nutrition medicine, genetics and nutrition, biophysics and lipid metabolism, etc. It aims to publish advanced research works related to public health and medical developments.
Journal of Computational Systems Biology (JCSB) is an open access online journal which aims to publish peer reviewed research articles and short communications in all aspects of computational biology and bioinformatics. JCSB comprehend the broad spectrum of computational bioscience including biological databases and bioalgorithms.
Journal of Biometrics and Its Applications (JBIA) is peer reviewed open access journal which addresses the fundamental areas in computer science that deal with biological measurements. It covers both the theoretical and practical aspects of human identification and verification. Biometrics based authentication, an integral component of identity science, is now being utilized in several applications playing a central role in personal, national and global security. Biometric refers to the field of development of statistical and mathematical methods applicable to data analysis problems in the biological sciences.
Journal of Gynecology Research (JGR) publishes original articles and research studies on, scientific advances, new medical and surgical techniques, obstetric management, and clinical evaluation of drugs and instruments and all aspects of gynecology including gynecological endoscopy, infertility, oncology contraception, urogynecology, fertility, and clinical practice and ultrasonography. It aims to publish the highest quality medical research in women's health, worldwide.
CLINICAL AND EXPERIMENTAL RESEARCH IN CARDIOLOGYAnnex Publishers
Journal of Clinical and Experimental Research in Cardiology (JCERC) is an international open access, scholarly peer-reviewed journal publishing high quality articles in all areas of cardiology related fields, especially current research, new concepts, novel methods, new therapeutic agents, and approaches for early detection and prevention of cardiac disorders and reporting new methods on basic and advanced clinical aspects of cardiology research.
CLINICAL AND EXPERIMENTAL RESEARCH IN CARDIOLOGYAnnex Publishers
Journal of Clinical and Experimental Research in Cardiology (JCERC) is an international open access, scholarly peer-reviewed journal publishing high quality articles in all areas of cardiology related fields, especially current research, new concepts, novel methods, new therapeutic agents, and approaches for early detection and prevention of cardiac disorders and reporting new methods on basic and advanced clinical aspects of cardiology research.
Journal of Bioequivalence Studies (JBS) is an open access, peer reviewed journal that publishes the most relevant and reliable researches with respect to the subject of Bioequivalence studies which includes pharmacokinetic and pharmcodynamic properties of a drug. JBS publishes original articles, review articles, case reports, short communications, etc.
Anti arthritic-efficacy-and-safety-of-crominex-3+(trivalent-chromium-phyllant...Annex Publishers
Abstract
The present investigation was undertaken to evaluate the therapeutic efficacy and safety of Crominex® 3+ (a complex of trivalent chromium, Phyllanthus emblica (Amla) extract and purified Shilajit) in moderately arthritic dogs. Eleven client-owned moderately arthritic dogs in a randomized double-blinded study received placebo or Crominex® 3+ twice daily for a period of 150 days. On a monthly basis, each dog was evaluated for arthritis associated pain (overall pain, pain upon limb manipulation and pain after physical exertion) and a full physical exam (body weight, body temperature and heart rate). At the same time intervals, dogs serum samples were examined for biomarkers of kidney (BUN and creatinine), liver (bilirubin, ALT and AST) and heart and skeletal muscle (CK) functions. Findings of this investigation revealed that dogs receiving Crominex® 3+ (1000 μg chromium, 15 mg Amla extract and 15 mg purified Shilajit per day in two divided doses) exhibited a significant (P< 0.05) reduction in arthritic pain noted as early as after 90 days with a maximum reduction after 150 days of treatment. Pain level remained the same or slightly increased in the dogs receiving placebo. No significant change occurred in physical parameters or serum biomarkers in dogs on placebo or Crominex® 3+, which suggested that Crominex® 3+ was well tolerated by arthritic dogs. In conclusion, Crominex® 3+ significantly (P< 0.05) ameliorated arthritic pain and improved quality of life without causing any untoward effects in moderately arthritic dogs.
Abstract
The objectives of this retrospective study were 1. To determine the effect of three surgical techniques (right flank omentopexy, right flank omentoabomasopexy, and left flank abomasopexy), and 2. To determine the effect of concurrent disease on return to normal milk production. Return to normal milk production occurred in 86.3% of cows diagnosed with LDA. Results suggested that cattle diagnosed with LDA corrected via right flank omentopexy or left flank abomasopexy were significantly more likely to return to normal milk production as compared to those corrected via right flank omentoabomasopexy (p< 0.02). No significant difference in return to normal milk production was noted between surgical techniques for correction of RDA (p=1.000) and right abomasal volvulus (p=0.596). Concurrent disease diagnoses did not affect return to milk production. Reported complications were infrequent (n=11).
List of abbreviations: LDA- Left displaced abomasum; RDA- Right displaced abomasum; RAV- Right abomasal volvulus; RAOV- Right abomasal-omasal volvulus; RFO- Right flank omentopexy; RFOA- Right flank omentoabomasopexy; LFA- Left flank abomasopexy; DA – Displaced Abomasum
Abstract
Three surgical case reports are presented to demonstrate the clinical efficacy of using an improved aqueous solution of chlorine dioxide complex (160 ppm) as a topical antiseptic in the post operative management of serious wounds in dogs. In vitro studies are included to demonstrate the antiseptic properties of this new chlorine dioxide complex.
Keywords: Chlorine dioxide; Antiseptic; Antimicrobial; Wound management
Abbreviations: ClO2-Chlorine dioxide; Cl2-Chlorine; PPM-Parts Per Million; SPP-Species; TEM-Transmission Electron Micrograph
Abstract
Salmonella is a causative agent for a wide variety of pathological diseases in humans, cattle, poultry and other farm animals and hence Salmonella infections are a major cause of concern to humans, veterinary animals and to food industry. With characterization of over 2500 Salmonella serovars, the pathogen nearly infects all vertebrates but the severity of infection varies from one serovar to another depending upon their host specificity. Some Salmonella serovars are restricted to one or few hosts while others have a broad host spectrum. Thus the understanding of the mechanisms involving host preference by one serovar over another is very important. As our knowledge about host adaptability will then be instrumental in designing better vaccines. Furthermore, methods involving identification of genetic markers for host specificity will prove to be instrumental in determining virulence factors for other pathogenic bacteria that cause systemic infections.
Keywords: Host adaption; Evolution; Salmonella serovar; Horizontal gene transfer
Anti inflammatory-and-anti-arthritic-efficacy-and-safety-of-purified-shilajit...Annex Publishers
Abstract
The objective of this investigation was to evaluate the efficacy and safety of purified Shilajit in moderately arthritic dogs. Ten client-owned dogs in a randomized double-blinded study received either a placebo or Shilajit (500 mg) twice daily for a period of five months. Dogs were evaluated each month for physical condition (body weight, body temperature, heart rate, and respiration rate) and pain associated with arthritis (overall pain, pain from limb manipulation, and pain after physical exertion). Serum samples collected from these dogs were examined each month for biomarkers of liver (bilirubin, ALT, and AST), kidney (BUN and creatinine) heart and muscle (creatine kinase) functions. The findings of this study revealed that dogs receiving Shilajit (Group-II) showed a significant (P< 0.05) reduction in pain from limb manipulation by day 60, and overall pain and pain after physical exertion by day 120. Maximum pain reduction, using all three criteria, was observed on day 150. Pain level remained significantly unchanged in dogs receiving the placebo. Dogs in either group showed no significant change (P>0.05) in physical parameters or serum markers, suggesting that Shilajit was well tolerated by moderately arthritic dogs. It was concluded that Shilajit significantly (P< 0.05) reduced pain in osteoarthritic dogs and markedly improved their daily life without any side effects.
Keywords: Purified Shilajit; Osteoarthritis in canine; Shilajit safety; Anti-arthritic nutraceutical
The updated-international-veterinary-anatomical-and-embryological-nomenclaturesAnnex Publishers
The international nomenclature of the anatomical, histological and embryological terms is known as Nomina Anatomica Veterinaria (N.A.V.), Nomina Histologica Veterinaria (N.H.V.) and Nomina Embryologica Veterinaria (N.E.V.).
This is the tripod of terms for the morphological sciences in our profession, a dictionary of terms used by all specialists in the basic and in the clinical sciences.
The discovery of the presence of stem cells and precursors with high regenerative potential in the mammary gland, hypothetically maintained throughout the course of the productive life of the dairy cow sheds an interesting perspective in the research which is interested to clarify all physiological clues and possible solutions to increase or maintain longer the potential production of dairy cows during life span of lactation. In 2006, Connie Eaves' lab in Vancouver (Stingl et ., 2006) [1]
Abstract
Mitogen-Activated Protein Kinase (MAPK) pathway is a signal transduction pathway that functions in a wide range of physiological and pathophysiological cellular events including cell proliferation, differentiation, apoptosis, migration, inflammation, metabolic disorders and diseases. In skeletal muscle, it plays an essential role in muscle fiber specialization, muscle mass maintenance, damage induced muscle regeneration and muscle diseases. This review provides an overview of MAPK pathway and its pathophysiological role in skeletal muscle diseases with a primary focus on muscular dystrophy and atrophy.
Abstract
An examination experiment has been carried out to investigate whether fingerprint powder and lifting technique can recover and transfer latent fingerprints from human skin surfaces of dead bodies. For recovery Swedish Black powder and for transfer White Fingerprint Gelatine were used.
Donors placed fingerprints on the human skin surfaces. Finger marks were then in all cases recovered with Swedish Black powder. The procedure was repeated after 2, 3, 4 and 5 hours. Treated finger marks were secured and preserved as latent fingerprint evidence by lifting process. We recovered 8% finger marks suitable for further examination of all deposited samples on the human skin surfaces.
Study on-efficiency-of-protein-extractants-employed-for-human-origin-determin...Annex Publishers
Abstract
Human origin determination is an important aspect of blood grouping analysis in forensic science laboratories. In the present study, protein extractants like gel buffer, ammonia and saline employed for origin determination were evaluated and compared qualitatively and quantitatively for their role in the extraction of proteins from dried blood stained materials of human origin at regular time intervals. Qualitative and quantitative methods employing counter immunoelectrophoresis (CIE) and rocket immunoelectrophoresis (RIE) respectively were used to study the protein extraction efficiency of extractants. Ammonia, compared to gel buffer and saline extracted the proteins effectively. Maximum extraction of proteins was observed in 2-3 hours of sample. CIE demonstrated sharp precipitin bands with all samples of ammonia extractant compared to the samples of counterparts. RIE also revealed greater concentration of proteins in the ammonia extract compared to extracts of gel buffer and saline. These results provide evidence that ammonia serves as a better protein extractant for rapid determination of human blood origin.
Keywords: Forensic science; Forensic serology; Blood origin; Electrophoresis; Protein extractants; Immunoprecipitation
Abstract
Programming scripts were written for the statistical analysis of genetic data from simple cases and complex cases of undetermined paternity. The methods presented here involve algorithms constructed with R, an open-source and increasingly popular programming language used for calculations and statistics; these methods also involve conditional probability analysis, Bayes’ Theorem, and pedigree analysis. Previous computer programs for assessing probable paternity in complex cases of undetermined paternity have been written; however, only minimal or generalized formulas are described in the papers presenting these programs. Therefore, these previously published programs are difficult to understand for most forensic researchers. Here, we present the details of the calculations used to evaluate probabilities of paternity and the details of the R scripts used execute these calculations. These scripts were constructed not only for standard trio case where DNA typing of the mother, child, and the alleged father are available, but also for more complex cases where DNA typing of the alleged father is absent. In these more complex cases, the putative genotype of the alleged father is determined from the genotypes of his parents, his siblings, his wife, children known to be his biological children, or some combination of these people. This report provides concrete and orderly descriptions of the calculations and the R scripts so that each facet of this method is easily understood. Furthermore, access to these scripts will enable individual researchers to develop calculation systems of their own.
Keywords: Forensic mathematics; Paternity testing; R; DNA typing
Tame to-torture-psychosexual-correlations-of-sex-violence-and-tortureAnnex Publishers
Abstract
This paper discusses the psychosexual correlations and psychological consequences related to torture and behavioral acts that are fundamentally torturous. The influence of participation by learning and the relationship of acts to thought and thought to acts are further discussed to raise awareness to the effects of torture on the torturer. Theories from multiple disciplines are presented in an integrated context to examine the correlation between fundamental psychological principles associated with acts that are torturous in nature and, therefore, innately evil.
Keywords: Aggression; Crime; Criminology; Behavioral acts; Human behavior; Psychological effects; Psychology; Psychopathology; Psychosexual; Sex; Sex crimes; Sexuality; Torture; Violence
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
1. Annex Publishers | www.annexpublishers.com
Volume 1 | Issue 2Abstract
A new method for improvement of 1,2-indandione-treated latent fingermarks on thermal paper will be described in this paper. Treatment with conventional techniques like ninhydrin in petroleum ether or DFO solution produces a black color on the thermosensitive side of thermal paper. The new method using 5,6-dimethoxy-1,2-indandione with polyvinyl pyrrolidone (PVP) can reduce this dark staining without removing the thermosensitive layer and parts of the developed fingermarks. An advantage of this method is that the developed fluorescent fingermarks appear in sharp lines and high contrast . The developed fingermarks can be observed when excited in the 535 nm region and using an orange-red goggles. There is no background coloration in this method. In addition, some tests were performed, leading to an optimized working solution, which charges the paper with a minimum of chemicals, is cheap, and enables a large quantity of papers to be treated in a short time and without involving any pre- or post treatment. Keywords: 5,6-Dimethoxy-1,2-indandione; Polyvinylpyrrolidones; Thermal paper; Latent fingerprint Introduction
Improvement in Latent Fingermark Detection on Thermal Paper using 5,6-Dimethoxy-1,2-indandione/PVP
Yabin Zhao, Yaxian Feng and Yaping Luo*
Department of Forensic Science, Chinese People’s Public Security University, Beijing, China
*Corresponding author: Yaping Luo, Department of Forensic Science, Chinese People’s Public Security University, Beijing 100038, China, Fax: +86 010-83903380, Tel: +86 13501265813, E-mail: lyp6698@163.com
Citation: Yabin Zhao, Yaxian Feng, Yaping Luo (2013) Improvement in Latent Fingermark Detection on Thermal Paper using 5,6-Dimethoxy-1,2-indandione/PVP. J Forensic Sci Criminol 1(2): 202. doi: 10.15744/2348-9804.1.202
Received Date: September 24, 2013 Accepted Date: October 15, 2013 Published Date: October 28, 2013
Research Article
Open Access
The thermal paper has been extensively used in modern day life, such as fax machines, ATM receipts, store receipts, lotteries, bus tickets etc. For this reason, it is collected as a physical evidence from the crime scene more and more common. However, most thermosensitive surfaces of thermal paper turn black when they come into contact with polar organic solvents or are exposed to high temperature. This black background staining reduces the contrast of the developed fingermarks, often rendering them useless for identification purposes [1]. So, the continuing need for new reagents and methods to develop and visualize latent fingermarks on thermal papers for forensic examination has been well-investigated by forensic science researchers. A desirable attribute of fingermark development techniques is high sensitivity, selectivity, and maximization of the contrast between the developed fingermarks and the background.
In 1991, Takatsu et al. [2] showed that a solution of alkyl analogues of ninhydrin could be used to develop latent fingermarks on thermal paper, but only obtained partial development of the fingermarks [2,3]. Using INON (2-hydroxy-2-(3,5,5-trimethyl-hexyloxy)-indan-1,3- dione) they reduced the blackening of the surface and obtained the better results [2]. By fuming thermal papers with dimethylaminocinnamaldehyde (DMAC) and iodine, Brennan and Jasuja were able to develop clear fingermarks with no background coloration [4,5], although vapor-phase staining method had been known for many years as a general development technique for depositions on paper. To enhance ninhydrin treated latent fingermarks on thermal paper, Schwarz used a solution containing pyrrolidone based compounds referred to as ‘G3’, to decolorize the blackened paper [6]. The majority of the techniques discussed above suffer from one or more drawbacks such as being complex or cumbersome, some requiring pre- or post treatment, or being less efficient at developing aged fingermarks. In 2010, Schwarz improved the methodology by adding polyvinyl pyrrolidone (PVP) into the solution of ninhydrin and achieved very promising results which there is no black background anymore. No mark of fluorescence has been noted by the purple fingermark developed by ninhydrin. There will be background interference when the developed purple mark was on the printed words [7]. This encouraged us to pursue a method for the development of latent fingermarks on thermal paper solving the problems. Quite recently, we have reported a new DFO/PVP development method that can be successfully applied to develop fresh as well as aged latent fingermarks on thermal paper with no background coloration [8]. 1,2-Indanedione belongs to a class of compounds which have demonstrated great potential in the processing of latent fingermarks. It has been proved to be a viable alternative for the detection of latent fingermarks on porous surfaces, with more fingermarks being developed using this reagent on real samples than both DFO, ninhydrin and a combination of the two reagents. Although the synthesis of
Volume 1 | Issue 2
Journal of Forensic Science & Criminology
ISSN: 2348-9804
2. Annex Publishers | www.annexpublishers.com
Volume 1 | Issue 2
Journal of Forensic Science & Criminology
2
Every individual followed and repeated the same procedure for 10 times. We tried our best to ensure that each volunteer impress their fingermarks with similar force and within the same duration. The fingermarks were stored under room temperature in the laboratory for 1, 3, 5, 7, 15 and up to 30 days before being treated. The comparison between different methods was performed by cutting the series of fingermarks in halves before dipping them in their respective staining solutions. Developed marks were photographed using a digital camera (Nikon D70, AF Micro-Nikkor 60mm f / 2.8D, Japan).
Detection of latent fingermarks
The detection of the latent fingermarks was performed as follows: (1) Each sample was immersed in various staining solutions for 10s; (2) After that, the treated samples were heated in an oven at 100 °C, relative humidity 60% for 10 min. (3) The samples were then observed in the luminescence mode using a Polilight lamp with the emission set at an excitation wavelength of 535 nm.
1,2-indanediones had been reported many years ago, these compounds had never been tested before on latent prints until 1997. 1,2-Indanedione was proposed as a fingermark reagent by Ramotowski [9]. Following this discovery, much effort has been devoted to the latent fingermarks development by using 1,2-indanediones. Researchers worldwide have conducted research into the optimization and evaluation of 1,2-indanedione as an adequate reagent for fingermark detection [10-15].
An evaluation of 5,6-dimethoxy-1,2-indandione in latent fingermarks detection began with the work of Almog, et al. [11]. The fluorescence of this new compound was comparable to the best ninhydrin analogs. The fluorescence was significantly enhanced by the subsequent application of a zinc nitrate solution. We envisioned that using the 5,6-dimethoxy-1,2-indandione/ PVP system, where the presence of a latent fingerprint was visualized by luminescence, would provide a simple and effective method for latent fingerprint detection on thermal paper. In the current work, the mixture solution of 5,6-dimethoxy-1,2- indandione with PVP was utilized as working solution to detect latent fingermarks on thermal paper. Integrating PVP into a 5,6-dimethoxy-1,2-indandione solution prevents the black staining, and the developed fingermarks appear in clear contrast to the background under the fluorescence conditions.
Using the resultant optimized formulation, performance comparisons were then made. The quality score of developed marks was used to evaluate the effects. The sensitivity, selectivity and stability of the method were also investigated. Material and methods
Materials
All the solvents (AR grade) were purchased from Beijing Chemical Co., Ltd (Beijing) and used without further purification. 5,6-Dimethoxy-1,2-indandione was supplied by Chinese People’s Public Security University. PVP with lower molar mass Kolloidon® 12 PF (Mw = 2000–3000; BASF ChemTrade GmbH, Burgbernheim, Germany) was employed.
Preparation of the 5,6-dimethoxy-1,2-indandione Solution consisted of fully dissolving 0.8 g of 5,6-dimethoxy-1,2-indandione in 90 ml ethyl acetate and 10 ml acetic acid. Then mixing thoroughly with 80ml zinc chloride solution (prepared with zinc chloride, ethyl alcohol, petroleum ether and ethyl acetate) and 820 ml petroleum ether.
The DFO/PVP working solution: The best ratio of DFO solution in PVP(5%), in ethanol solution, was 1:10 (v/v). Fingermarks developed on thermal paper by DFO/PVP were visualized at 515 nm excitation and observed with an orange-red goggles. Results and discussions
Optimization of 5,6-dimethoxy-1,2-indandione/ PVP staining solution
PVP is a type of non-ionic polymer, with low volatility and nontoxic, it can be easily dissolved in polar solution and difficult to dissolve in the less or non-polar solvents. To increase the solubility and fluorescence, the influence of solvent and the ratio of PVP to 5,6-dimethoxy-1,2-indandione on detecting latent fingermarks was also explored. It was determined that use of ethanol as a solvent to assistant solubility exerts a substantial influence on the sensitivity of the reagent. The optimum ratio of 5,6-dimethoxy-1,2-indandione solution with PVP, in ethanol solution, was 1:7.5(v/v) and the best concentration of PVP in the ethanol solution was determined to be around 5% (Table 1). Encouraged by this result, further optimization studies using fingermarks deposited on thermal papers were extended to different remaining days and afforded similar results.
Fingermark samples
5 individuals (1 female, 4 males) aged from 20-25 were chosen as donors for the experiments. Donors were requested not to wash their hands during the experiments in order to produce natural fingermarks. Donors were asked to deposit a depletion series, which consisted of 5 successive contacts on the thermal paper with a single finger.
PVP to indandione ratio
Concentration of PVP solution
1: 10
1: 7.5
1: 5
1: 2.5
1: 1
+ +
+ + +
+ +
+
+
1%
+ +
+ + +
+ +
+
+
2.5%
+++
++++
+++
+
+
5%
+++
++++
+++
++
+
7.5%
+ +
+ + +
+ +
+
+
10%
The test result is indicated by +. ++++ indicates very high quality fingermarks, +++ indicates clear visible fingermarks, ++ indicates that the fingermarks are clear in general but certain parts are difficult to identify, + indicates that the fingermarks are incomplete, not clear enough for identification; - indicates that the fingermarks do not appear on thermal paper.
Table 1: Detection results developed with 5,6-dimethoxy-1,2-indandione/ PVP for fingermarks impressed on thermal paper within 1 day.
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Efficiency of the new PVP/DFO staining solution
Figure 1 shows a typical example of freshly deposited latent “natural” fingermark, developed by 5,6-dimethoxy-1,2-indandione/ PVP under the above mentioned conditions. Fresh fingermarks developed with 5,6-dimethoxy-1,2-indandione/PVP solution for all donors appear in sharp lines, high contrast, excellent fluorescence and without background coloration. The fluorescent fingermarks can be observed and photographed when excited in the 535 nm region through an orange-red goggles.
Figure 1: Photographic images of a latent “natural” fingermark from a single donor deposited on thermal paper. The fresh latent fingermark developed with 5,6-dimethoxy-1,2-indandione/PVP solution, visualised at 535 nm excitation and observed with an orange-red goggles.
Comparison of the 5,6-dimethoxy-1,2-indandione/ PVP and the, 6-dimethoxy-1,2-indandione
The comparison between 5,6-dimethoxy-1,2-indandione/ PVP formulation with those obtained only using 5,6-dimethoxy- 1,2-indandione was performed by splitting the fingermarks in half before dipping them in their respective staining solutions (5,6-dimethoxy-1,2-indandione/PVP for the left halves and 5,6-dimethoxy-1,2-indandione for the right halves). Latent fingermarks on thermal papers developed with 5,6-dimethoxy-1,2-indandione turned dark on the thermosensitive side, while those developed with 5,6-dimethoxy-1,2- indandione/PVP showed stronger luminescence, excellent quality of ridge detail and better contrast with the background. (Figure 2).
Comparison of the 5,6-dimethoxy-1,2-indandione/ PVP and the PVP/DFO
Subsequently, we compared the efficiency of DFO/PVP with 5,6-dimethoxy-1,2-indandione/PVP methods. The merits of the new method are clear. Figure 3 shows an example where both methods detected fingermarks on the thermal paper without turning dark on the thermosensitive side, while those developed with 5,6-dimethoxy-1,2-indandione/PVP provided greater fluorescence, better detection sensitivity and clearer detail than that obtained with PVP/DFO.
Figure 2: Latent fingermark developed on thermal paper by (A) 5,6-Dimethoxy- 1,2-indandione/PVP (left halve) and (B) 5,6-Dimethoxy-1,2-indandione (right halve). All the developed fingermarks were visualized at 535 nm excitation, observed using orange-red goggles. The results from all samples test showed that the change trend of enhancement for different donors were consistent.
Figure 3: Latent fingermark developed on thermal paper with (A) 5,6-Dimethoxy- 1,2-indandione/PVP, polilight lamp at 535 nm excitation, observed using orange-red goggles in the luminescence mode. (B) One-step PVP/ DFO, polilight lamp at 515 nm excitation, observed using orange-red goggles in the luminescence mode. The results from all samples test showed that the change trend of enhancement for different donors were consistent.
Sensitivity and stability of the 5,6-dimethoxy-1,2- indandione/PVP treatment for latent fingermarks
Next, the sensitivity and stability of the one-step 5,6-dimethoxy- 1,2-indandione/PVP treatment for latent fingermarks were also explored. A depletion series of marks with decreasing quantities of material deposited were test. The typical depletion series consisting of five consecutive finger depositions (Figure 4) showed that the new method provided sharp and clear development of latent fingermarks, without background staining, even dramatically diminished the amounts of residue deposited in fingermarks, the image still showing ridge detail (Figure 4E). Furthermore, the efficiency of development for all samples showed that principally fingermarks from different donors were consistently visualized and the tendency of the depletion for different donors were similar. Conclusions
In this report, a new one-step indandione /PVP development method has been proposed for detecting latent fingermarks on thermal paper with no background coloration. 5,6-Dimethoxy- 1,2-indandione/PVP has been successfully synthesized and we suggest its use as the working solution to detect latent fingermarks on thermal papers. The new technique could obtain even better results compared with the existing efficient reagents. It is a simple method to detect latent fingermarks that provides sharp and clear development of latent fingermarks, without background staining, dramatically diminished the
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Figure 4: Illustration of typical depletion series consisting of five consecutive finger depositions on thermal paper, aged for 1 day and treated with the 5,6-dimethoxy- 1,2-indandione/PVP. All the developed fingermarks were visualised at 535 nm excitation and observed using an orange-red goggles.
Figure 5: Photographs of 5,6-dimethoxy-1,2-indandione/PVP developed latent fingermarks on thermal papers aged for 1day, 3 days, 5 days, 7 days, 15 days and 30 days. Acknowledgements
The authors would like to thank the programs of Beijing Municipal commission of education for the grant provided to support this research .
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