Sulphuric acid is a corrosive poison that causes severe burns and damage upon contact. It works by extracting water from tissues, generating heat, and coagulating proteins. Ingestion can cause pain, swelling and discoloration of the mouth, throat and stomach as well as vomiting, bleeding and perforation of organs. Without treatment, complications like shock, infection and organ failure can be fatal. Autopsy findings show corrosion and blackening of the digestive tract. Diagnosis involves tests of fluids and imaging of injuries. Proper treatment requires immediate dilution and neutralization followed by measures to address complications.
Sulphuric acid as a corrosive poison. the characteristics, fatal dose, fatal time, sign and symptoms, post-mortem appearance and medicolegal importance are discussed
A POWER POINT PRESENTATION BY DR. SANGEETA CHOWDHRY AND DR. SUNIL SHARMA, DEPARTMENT OF FORENSIC MEDICINE AND TOXICOLOGY, GOVT. MEDICAL COLLEGE, JAMMU (JAMMU AND KASHMIR)
FORENSIC MEDICINE BOOKS OF
REDDY
GOUTAM BISWAS
MAGENDRAN
OTHERS
TOPICS :-
COLD INJURY
HEAT INJURY
BURN INJURY
SCALDS
ELECTROCUTION
LIGHTENING INJURY
THIS IS ONE OF MY BEST AND FAVORITE PRESENTATIONS. IT WILL SURELY HELP YOU A LOT DURING YOUR EXAMS (PROF/OTHERS). IF YOU FIND IT HELPFUL THEN LIKE IT. MY EMAIL ID IS GIVEN ON THE 2ND PAGE OF THIS PRESENTATION, IF YOU WANT PRESENTATIONS ON OTHER TOPICS (ANY MEDICAL SUBJECTS) THEN MAIL ME. I WILL WORK ON IT LOT AND WILL BE TRYING TO SHARE WITH YOU GUYS...
THANK YOU
Sulphuric acid as a corrosive poison. the characteristics, fatal dose, fatal time, sign and symptoms, post-mortem appearance and medicolegal importance are discussed
A POWER POINT PRESENTATION BY DR. SANGEETA CHOWDHRY AND DR. SUNIL SHARMA, DEPARTMENT OF FORENSIC MEDICINE AND TOXICOLOGY, GOVT. MEDICAL COLLEGE, JAMMU (JAMMU AND KASHMIR)
FORENSIC MEDICINE BOOKS OF
REDDY
GOUTAM BISWAS
MAGENDRAN
OTHERS
TOPICS :-
COLD INJURY
HEAT INJURY
BURN INJURY
SCALDS
ELECTROCUTION
LIGHTENING INJURY
THIS IS ONE OF MY BEST AND FAVORITE PRESENTATIONS. IT WILL SURELY HELP YOU A LOT DURING YOUR EXAMS (PROF/OTHERS). IF YOU FIND IT HELPFUL THEN LIKE IT. MY EMAIL ID IS GIVEN ON THE 2ND PAGE OF THIS PRESENTATION, IF YOU WANT PRESENTATIONS ON OTHER TOPICS (ANY MEDICAL SUBJECTS) THEN MAIL ME. I WILL WORK ON IT LOT AND WILL BE TRYING TO SHARE WITH YOU GUYS...
THANK YOU
Forensic science PowerPoint presentation on Injury and it's medico-legal importance.
The slide is made for medical students. Mainly for BAMS students. It covers maximum points.
The slide is full of example with pictures which make it easy to understand the concept. It contains post-mortem findings as well as medico-legal importance of the each type of injury.
Forensic science PowerPoint presentation on Injury and it's medico-legal importance.
The slide is made for medical students. Mainly for BAMS students. It covers maximum points.
The slide is full of example with pictures which make it easy to understand the concept. It contains post-mortem findings as well as medico-legal importance of the each type of injury.
toxicology is a very important topic for pg entrance.....so all about it has been discussed in detail as required for pg entrance....do make use of it...
Toxicology is a very important topic and if u try reading each
poisons Separately , u will definitely forget them.
So best way to remember them more is to practice
MCQs and then read topics by correlating.
That’s what I think….
It may or may not apply for u…..
But atleast try once like this and then choose your own way .
In biology, poisons are substances that can cause death, injury or harm to organs, tissues, cells, and DNA usually by chemical reactions or other activity on the molecular scales, when an organism is exposed to a sufficient quantity.
Phenomics assisted breeding in crop improvementIshaGoswami9
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
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/
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.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
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.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
3. Corrosives - The definition:
A corrosive is a substance that fixes, destroys and
erodes the surface with which it comes into contact.
The word 'corrosion' is derived from the Latin
verb ’corrodere’, which means 'to gnaw', indicating
how these substances seem to 'gnaw' their way
through the flesh.
5. Mechanism of action of corrosives:
Any part of the body + corrosive substance
Extraction of water
Liberation of heat
Coagulation and precipitation of cellular proteins
Conversion of hemoglobin to hematin
Corrosion and destruction of tissues
6. Sulphuric acid
‘Oil of Vitriol’; ‘Battery acid’; ‘Oleum’
Physical appearance:
Heavy, odorless, colorless, non-fuming, oily liquid.
Has a tendency to carbonize organic substances.
Hygroscopic; has great affinity for water and evolves
tremendous heat when mixed with it.
7. Uses:
Industrial chemical
Storage batteries and accumulators
Pipe and drain cleaners
Laboratory
Fatal dose: 10 to 15 ml
Fatal period: 12 to 24 hours
8. Clinical features:
Corrosion of mucous membranes of mouth, throat,
esophagus.
Epigastric pain spreads all over the abdomen and
thorax.
Pharyngeal pain- the most common presenting
symptom.
9. Teeth- chalky-white.
Tongue- swollen, sodden and black.
Abdomen- distended, very tender.
Eyes are sunken and pupils dilated.
12. Complications and The Cause of death:
1.Circulatory collapse.
2.Spasm or edema of glottis.
3.Collapse due to perforation of stomach.
4.Toxaemia.
5.Delayed death due to—
hypostatic pneumonia
secondary infection
renal failure
starvation due to stricture of the esophagus.
13. Treatment:
Gastric lavage, activated charcoal and emetics-
contraindicated.
Acid immediately diluted and neutralized in situ by-
- One-fourth litre of water or milk
- Milk of magnesia or lime water
- Aluminium hydroxide gel; within 30 minutes of
ingestion.
Alkaline carbonates and bicarbonates-
contraindicated.
14. Prednisolone- 60mg/day; to prevent esophageal
stricture and shock.
A 3-4 cm mercury-filled bougie is passed daily if
stricture develops.
Correct circulatory shock.
Tracheostomy if there is oedema of the glottis.
Concomitant prophylactic broad-spectrum
antibiotic use is recommended.
15. No oral feed until endoscopy confirms the extent of
injury.
Eye burns require copious irrigation with sodium
bicarbonate with the eyelids retracted for 10-15
minutes. A suspended i.v. bag that administers low
pressure irrigation is ideal.
Laparotomy is required for patients with gastric
perforation and peritonitis.
16. Autopsy findings:
External:
Evidence of acid corrosion and chemical burns with
brownish-black parchment like and corroded spots
are seen over the chin, cheek, neck and chest
resulting from trickling of the acid.
Excoriation of lips.
Corrosion of mucosa of mouth and tongue.
Chalky-white teeth.
17. Internal:
Limited to the upper digestive tract and respiratory
system.
Mucous membrane of esophagus inflamed,
swollen by edema and severe interstitial
hemorrhage present, even when corrosion is
absent.
Greater part of the stomach converted into soft,
boggy, black mass that readily disintegrates on
touching. Blackened with peppery feel.
18. The Small intestine shows evidence of irritation.
Severe inflammation of the larynx and trachea.
19.
20. Diagnosis:
Litmus test:
The pH of the saliva tested to determine whether
the chemical ingested is an alkali or an acid.
Fresh stains in clothing may be tested by adding a
few drops of sodium bicarbonate.
Production of an effervescence is indicative of an
acid stain.
21. Radiology:
In view of the high rate of perfusion, water soluble
contrast agents are used for evaluation.
Diffuse mottling of lung fields on X-ray when there
is inhalation of acid vapor.
Chest and abdominal X-rays and routine laboratory
testing should be obtained to evaluate for
Aspiration,
Perforation and
Organ dysfunction.
22. Endoscopy:
Used to document the site of injury and its severity.
Better performed 12-14 hours after ingestion.
The squamous epithelium of the esophagus is
relatively resistant to acid burns, while the
columnar epithelium of the stomach is very
susceptible.
Hence perforation of the stomach is more frequent
than that of the esophagus.
23. Medico-Legal aspects:
Accidental poisoning results due to mistaking it
for glycerin or castor oil.
In suicide.
Rarely used in homicide.
Taken internally or injected into the vagina as an
abortifacient.
Vitriolage.
24. THE ACID-BATH MURDERER:
Have a body to get rid off? Talk to Haigh.
On 18th February 1949,
John George Haigh, self-professed
owner of a factory, induced an
early widow to accompany him
to his warehouse where he shot
her and then dumped her body
after removing some valuables, in a steel tank filled with
sulphuric acid.
25. •28 pounds of human body fat
•Three faceted gallstones
•Part of a left foot, not quite eroded
•Eighteen fragments of human bone
•Intact upper and lower dentures
•The handle of a red plastic bag
•A lipstick container
The remains were discovered by the police on
March 1st. By then, the body had been converted into
a sludgy, greasy material. Careful retrieval by the
forensic pathologist Prof. Keith Simpson yielded-
26. “BUT IF THERE ARE NO BODIES, HOW
CAN I BE CHARGED WITH MURDER?”