Introduction to Anthropology
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This document is a submission from Manshwine Bandor, a student in the 4th semester of the 2nd year of a BSc program at Shree Vaishnav Vidyapeeth Vishwavidyalaya. The topic of the submission is Anthropology and it has been submitted to assistant professor Ketan Patil.
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Special education has evolved over time. This document provides an introduction and historical perspective on special education. It was submitted by Muhammad Usman, a student in the Department of Sports and Physical Education at Sarhad University of Science & Information Technology, to his professor Dr. Muhib Ullah Khan Marwat.
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Estimation of hair index from human hair
Human hair is commonly found evidence at crime scenes and can provide a link between a criminal and their crime. Analysis of hair, called trichology, is important in forensic investigations as hair can easily be left behind at a crime scene and adhere to surfaces. This document outlines the equipment and process used to estimate the hair index of a human hair sample, which involves mounting hair on a slide, treating it with hydrogen peroxide and hydrochloric acid, and examining it under a microscope to measure the medulla and cortex.
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Assignment title
Special education has evolved over time. This document provides an introduction and historical perspective on special education. It was submitted by Muhammad Usman, a student in the Department of Sports and Physical Education at Sarhad University of Science & Information Technology, to his professor Dr. Muhib Ullah Khan Marwat.
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NYU Official Transcript
This document is a transcript for Alexandre Huibonhoa from New York University. It summarizes his undergraduate education, including degrees awarded (Bachelor of Arts in Psychology and minor in Creative Writing in 2015), courses taken each semester from 2011-2015 across multiple majors, grades received, grade point averages, and academic honors. The transcript provides a comprehensive record of Alexandre's time at NYU.
Adult Psychology Degree Completion
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Estimation of hair index from human hair
Human hair is commonly found evidence at crime scenes and can provide a link between a criminal and their crime. Analysis of hair, called trichology, is important in forensic investigations as hair can easily be left behind at a crime scene and adhere to surfaces. This document outlines the equipment and process used to estimate the hair index of a human hair sample, which involves mounting hair on a slide, treating it with hydrogen peroxide and hydrochloric acid, and examining it under a microscope to measure the medulla and cortex.
Barbiturates
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Drug abuse in sports
This document discusses the history and science of drug testing in sports. It provides background on the types of performance enhancing drugs used by athletes and their effects. It then describes the anti-doping agencies and rules established to regulate drug use in sports. The document outlines the banned substances and methods according to their classifications. It details the sample collection and testing process, including the analytical methods used to detect drugs in urine and blood samples. Finally, it mentions some notable doping cases that have occurred in sports over time.
Sex determination using anthropometric methods
This document summarizes methods for determining sex from skeletal remains using anthropometric analysis. It outlines key sexual dimorphisms in the skull, pelvis, and long bones that can be used to identify whether remains are from a male or female. For the skull, traits like robustness, orbital shape, and mastoid process size can indicate sex. In the pelvis, characteristics such as the subpubic angle, sciatic notch width, and pubic arch shape provide clues. Measurements and morphological features of long bones like the femur, tibia, humerus and ulna also differ between males and females. Anthropologists can use these multiple lines of evidence from the skeleton to assign sex with 90-95%
Anthropology
Human evolution is a gradual process that has occurred over a long period of time. Key stages included Dryopithecus, which is considered the common ancestor of apes and humans around 25 million years ago. Ramapithecus and Kenyapithecus, dated to between 12-5 million years ago, displayed traits that were ancestral to humans. Australopithecus, the first upright walking species around 4 million years ago, had a brain capacity of around 500cc. Homo habilis began making tools around 2.4 million years ago. Later species such as Homo erectus had larger brains and used fire. Homo sapiens emerged around 200,000 years ago, with modern humans
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The document discusses theories of organic evolution, including Darwin's theory of evolution by natural selection and Lamarck's theory of inheritance of acquired characteristics. Darwin's theory proposes that organisms evolve over generations through natural selection of inheritable traits that aid survival and reproduction. Lamarck's theory suggests that organisms can pass on traits acquired in their lifetime to offspring, such as giraffes inheriting long necks from ancestors that stretched their necks to reach leaves. Modern understanding incorporates genetics and shows how random mutations in DNA can provide variation for natural selection to act upon.
Anthropology
This document discusses the field of anthropology and its branches. It begins by defining anthropology as the study of humans, their origins, and cultural variations throughout history. The document then outlines the major branches of anthropology, including socio-cultural anthropology, physical/biological anthropology, archaeological anthropology, linguistic anthropology, and applied anthropology. For each branch, it provides a brief description of the areas of focus and goals of study.
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Microscope and its types
This document provides information about different types of microscopes. It discusses simple microscopes, which use a single lens for magnification, and their basic parts and working principle. Compound microscopes are then introduced as using multiple lenses to achieve higher magnification than is possible with a simple lens alone. The key parts of a compound microscope are described, including the eyepiece, objective lenses, body tube, arm, and focus adjustments. It explains that light from the illuminator passes through these parts to produce a magnified image for viewing.
History of firearms
The document outlines the 7 phases of development in firearms technology:
1. Cannon lock - An early matchlock design with a pan and touch hole for ignition.
2. Matchlock - Used a slow-burning match cord for ignition which had disadvantages of visibility and damp weather.
3. Wheel lock - The first self-igniting design using a rotating flint mechanism.
4. Snaphaunce - An early flintlock design with a spring-loaded flint arm for ignition.
5. Flintlock - Rapidly replaced earlier designs using flint and steel for reliable ignition.
6. Percussion lock - Introduced in 1820, it used fulminate of
Hair and fiber
Hairs and fibers are important forms of trace evidence that can provide clues in forensic investigations. Hair has a cuticle, cortex, and sometimes a medulla, and characteristics like these can be used to identify a sample's origin. Fiber analysis examines properties such as the fiber's structure, color, and chemical composition to determine its type (natural or synthetic) and match it to a potential source. Due to their tendency to shed easily, fibers are commonly found as trace evidence and can link a suspect to a crime scene or victim.
Hair and fiber
This document discusses hair and fibers in forensic science. It provides details on:
- The structure and composition of hair, including the cuticle, cortex, and medulla layers. Hair characteristics like color, length and shape can indicate where on the body it came from. Nuclear and mitochondrial DNA can be extracted from hair roots or cuticles.
- Fibers are long thin strands that can be spun into yarn and woven into fabrics. Matching unique fibers between a victim and suspect's clothing can provide evidence of contact.
- Both natural fibers like cotton and wool and synthetic fibers like nylon and polyester are important in forensic analysis and can be identified under a microscope.
Internal Ballistics
Internal ballistics refers to what occurs within a weapon's barrel from firing to bullet exit. Key phenomena include:
- Ignition starts when the firing pin strikes the primer, igniting propellant which burns to form high-pressure gas.
- Propellant combustion and barrel length impact velocity - short barrels require fast-burning powder while long barrels use progressive-burning powder.
- Atmospheric conditions like temperature affect ballistics, as ammunition is manufactured for a specific temperature range and velocities vary with temperature.
Expert Witness Testimony
The document discusses the role and types of expert witnesses. An expert witness is a person with specialized knowledge or experience in a particular field who provides expert testimony. They may provide opinions on matters like injury severity, sanity, machine failures, damages, and authenticating electronic evidence. Expert testimony is important in many civil and criminal cases. Experts have a responsibility to provide unbiased opinions. There are testifying experts who present in court and non-testifying experts who advise lawyers. In ballistics cases, expert opinions on matching bullets to guns involve subjective assessments.
Terminal ballistics
This document discusses terminal ballistics and the different types of injuries caused by firearms. Terminal ballistics is the study of bullet behavior once it impacts the target. Factors like velocity, mass, size, and shape of the bullet affect the degree of injury. Rifled firearms can cause injuries at contact range (muzzle touching body), close shot (within flame distance), and distant shots over 50cm away. Shotgun wounds depend on range, with contact shots causing discoloration and burns and long range shots rarely being fatal. Entry wounds from firearms show more tissue destruction than exit wounds, which tend to be everted with split flaps. Specific injuries include abrasion collars, contusion collars, tattooing, and blackening
Improvised Firearms
This document discusses various types of improvised firearms, also known as zip guns. It provides examples such as zip guns, pen guns, pipe guns, and guns disguised as everyday objects like flashlights, cell phones, cigarettes, briefcases, and keychains. It describes how some of these firearms are constructed in a rudimentary way from available materials to function as a weapon. The document cautions that these improvised firearms can be unstable and pose safety risks due to improper materials or assembly.
External ballistics
External ballistics deals with the flight path of a projectile from the moment it exits the barrel until impact with the target. The key factors that influence a projectile's trajectory are wind, vertical angle, and air density. Wind can cause horizontal deflection from crosswinds and vertical deflection from headwinds or tailwinds. The vertical angle of fire affects slant range and requires adjustments to hold-off points. Variations in air pressure, temperature, and humidity that determine air density also influence drag on the projectile and its trajectory.
External ballistics
The document discusses the factors that affect the trajectory of a bullet, including both internal and external factors. The main internal factors are the velocity of the projectile, spin of the bullet, angle of fire, structural features, and gravity. The main external factors are wind, air resistance, and the Coriolis effect. The trajectory takes the form of a parabola, being affected most significantly by the bullet's velocity, as well as air resistance and gravity acting upon it during flight.
Microscopy
The document discusses different types of microscopes, including compound microscopes and stereomicroscopes. It describes the key parts and principles of operation. Compound microscopes use multiple lenses to magnify specimens and provide a two-dimensional image. Stereomicroscopes use two optical paths to provide a three-dimensional view of surface details. Examples of uses include biology studies, forensics, manufacturing quality control, and more. The document also discusses who may have invented the compound microscope and provides references for further reading.
Chromatography
Chromatography is a technique used to separate mixtures and involves dissolving the mixture in a mobile phase that carries it through a structure containing a stationary phase. It was first developed in 1900 by Russian scientist Mikhail Tsvet and involves the interaction between a mobile and stationary phase resulting in separation. Common types include paper chromatography, thin layer chromatography, gas chromatography, and affinity chromatography. It has various applications in fields like clinical analysis, protein purification, forensic toxicology, and separation of amino acids, proteins, carbohydrates, and more.
Glass fractures
The document discusses different types of glass and forensic analysis of glass evidence. It provides information on the physical, optical, and chemical properties of glass that can be analyzed forensically. Specific techniques mentioned include refractive index testing, density determination, microscopic analysis of fractures, and elemental analysis. The document also discusses how analysis of glass evidence can help reconstruct crime scenes and connect suspects to crimes by matching glass fragments.
Internal Ballistics
Internal ballistics is the study of what happens inside the barrel of a firearm from the moment of ignition until the projectile exits. When fired, the projectile is accelerated to high velocity by the burning of propellant gases trapped behind it in the barrel. There are three types of propellant powders - progressive powders increase burning surface as they burn, degressive powders decrease burning surface, and neutral powders maintain a constant burning surface.
External ballistics
The document discusses external ballistics and the factors that affect the trajectory of a bullet. It defines external ballistics as dealing with the motion of a projectile from the muzzle of a weapon to the target. The main factors that influence a bullet's flight are gravity, which pulls it downward, and air resistance, which reduces its velocity. In a vacuum with no air resistance or gravity, a bullet would travel in a straight line at a constant velocity. However, in reality bullets follow a parabolic trajectory due to these forces. The document also discusses other factors like velocity, spin, angle of fire, yaw, drift, and temperature that can impact a bullet's trajectory.
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Sex determination using anthropometric methods
This document summarizes methods for determining sex from skeletal remains using anthropometric analysis. It outlines key sexual dimorphisms in the skull, pelvis, and long bones that can be used to identify whether remains are from a male or female. For the skull, traits like robustness, orbital shape, and mastoid process size can indicate sex. In the pelvis, characteristics such as the subpubic angle, sciatic notch width, and pubic arch shape provide clues. Measurements and morphological features of long bones like the femur, tibia, humerus and ulna also differ between males and females. Anthropologists can use these multiple lines of evidence from the skeleton to assign sex with 90-95%
Anthropology
Human evolution is a gradual process that has occurred over a long period of time. Key stages included Dryopithecus, which is considered the common ancestor of apes and humans around 25 million years ago. Ramapithecus and Kenyapithecus, dated to between 12-5 million years ago, displayed traits that were ancestral to humans. Australopithecus, the first upright walking species around 4 million years ago, had a brain capacity of around 500cc. Homo habilis began making tools around 2.4 million years ago. Later species such as Homo erectus had larger brains and used fire. Homo sapiens emerged around 200,000 years ago, with modern humans
Theories of organic evolution
The document discusses theories of organic evolution, including Darwin's theory of evolution by natural selection and Lamarck's theory of inheritance of acquired characteristics. Darwin's theory proposes that organisms evolve over generations through natural selection of inheritable traits that aid survival and reproduction. Lamarck's theory suggests that organisms can pass on traits acquired in their lifetime to offspring, such as giraffes inheriting long necks from ancestors that stretched their necks to reach leaves. Modern understanding incorporates genetics and shows how random mutations in DNA can provide variation for natural selection to act upon.
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This document discusses the field of anthropology and its branches. It begins by defining anthropology as the study of humans, their origins, and cultural variations throughout history. The document then outlines the major branches of anthropology, including socio-cultural anthropology, physical/biological anthropology, archaeological anthropology, linguistic anthropology, and applied anthropology. For each branch, it provides a brief description of the areas of focus and goals of study.
Study of Soil and Paint
This document provides information about soils and paints. It defines soil as a mixture of organic matter, minerals, gases, liquids, and organisms that support life. The four main components of soil are identified as minerals, water, organic matter, and gases. Key soil types like sand, silt, clay and loam are described. Methods for analyzing soils like determining moisture content and particle size distribution are outlined. The document also defines paint as a liquid that converts to a solid film after application. The main components of paint are identified as pigments, binders, liquids, and additives. Common types of paints like water-based and oil-based are described. Forensic analysis methods for soils and paints are mentioned
Microscope and its types
This document provides information about different types of microscopes. It discusses simple microscopes, which use a single lens for magnification, and their basic parts and working principle. Compound microscopes are then introduced as using multiple lenses to achieve higher magnification than is possible with a simple lens alone. The key parts of a compound microscope are described, including the eyepiece, objective lenses, body tube, arm, and focus adjustments. It explains that light from the illuminator passes through these parts to produce a magnified image for viewing.
History of firearms
The document outlines the 7 phases of development in firearms technology:
1. Cannon lock - An early matchlock design with a pan and touch hole for ignition.
2. Matchlock - Used a slow-burning match cord for ignition which had disadvantages of visibility and damp weather.
3. Wheel lock - The first self-igniting design using a rotating flint mechanism.
4. Snaphaunce - An early flintlock design with a spring-loaded flint arm for ignition.
5. Flintlock - Rapidly replaced earlier designs using flint and steel for reliable ignition.
6. Percussion lock - Introduced in 1820, it used fulminate of
Hair and fiber
Hairs and fibers are important forms of trace evidence that can provide clues in forensic investigations. Hair has a cuticle, cortex, and sometimes a medulla, and characteristics like these can be used to identify a sample's origin. Fiber analysis examines properties such as the fiber's structure, color, and chemical composition to determine its type (natural or synthetic) and match it to a potential source. Due to their tendency to shed easily, fibers are commonly found as trace evidence and can link a suspect to a crime scene or victim.
Hair and fiber
This document discusses hair and fibers in forensic science. It provides details on:
- The structure and composition of hair, including the cuticle, cortex, and medulla layers. Hair characteristics like color, length and shape can indicate where on the body it came from. Nuclear and mitochondrial DNA can be extracted from hair roots or cuticles.
- Fibers are long thin strands that can be spun into yarn and woven into fabrics. Matching unique fibers between a victim and suspect's clothing can provide evidence of contact.
- Both natural fibers like cotton and wool and synthetic fibers like nylon and polyester are important in forensic analysis and can be identified under a microscope.
Internal Ballistics
Internal ballistics refers to what occurs within a weapon's barrel from firing to bullet exit. Key phenomena include:
- Ignition starts when the firing pin strikes the primer, igniting propellant which burns to form high-pressure gas.
- Propellant combustion and barrel length impact velocity - short barrels require fast-burning powder while long barrels use progressive-burning powder.
- Atmospheric conditions like temperature affect ballistics, as ammunition is manufactured for a specific temperature range and velocities vary with temperature.
Expert Witness Testimony
The document discusses the role and types of expert witnesses. An expert witness is a person with specialized knowledge or experience in a particular field who provides expert testimony. They may provide opinions on matters like injury severity, sanity, machine failures, damages, and authenticating electronic evidence. Expert testimony is important in many civil and criminal cases. Experts have a responsibility to provide unbiased opinions. There are testifying experts who present in court and non-testifying experts who advise lawyers. In ballistics cases, expert opinions on matching bullets to guns involve subjective assessments.
Terminal ballistics
This document discusses terminal ballistics and the different types of injuries caused by firearms. Terminal ballistics is the study of bullet behavior once it impacts the target. Factors like velocity, mass, size, and shape of the bullet affect the degree of injury. Rifled firearms can cause injuries at contact range (muzzle touching body), close shot (within flame distance), and distant shots over 50cm away. Shotgun wounds depend on range, with contact shots causing discoloration and burns and long range shots rarely being fatal. Entry wounds from firearms show more tissue destruction than exit wounds, which tend to be everted with split flaps. Specific injuries include abrasion collars, contusion collars, tattooing, and blackening
Improvised Firearms
This document discusses various types of improvised firearms, also known as zip guns. It provides examples such as zip guns, pen guns, pipe guns, and guns disguised as everyday objects like flashlights, cell phones, cigarettes, briefcases, and keychains. It describes how some of these firearms are constructed in a rudimentary way from available materials to function as a weapon. The document cautions that these improvised firearms can be unstable and pose safety risks due to improper materials or assembly.
External ballistics
External ballistics deals with the flight path of a projectile from the moment it exits the barrel until impact with the target. The key factors that influence a projectile's trajectory are wind, vertical angle, and air density. Wind can cause horizontal deflection from crosswinds and vertical deflection from headwinds or tailwinds. The vertical angle of fire affects slant range and requires adjustments to hold-off points. Variations in air pressure, temperature, and humidity that determine air density also influence drag on the projectile and its trajectory.
External ballistics
The document discusses the factors that affect the trajectory of a bullet, including both internal and external factors. The main internal factors are the velocity of the projectile, spin of the bullet, angle of fire, structural features, and gravity. The main external factors are wind, air resistance, and the Coriolis effect. The trajectory takes the form of a parabola, being affected most significantly by the bullet's velocity, as well as air resistance and gravity acting upon it during flight.
Microscopy
The document discusses different types of microscopes, including compound microscopes and stereomicroscopes. It describes the key parts and principles of operation. Compound microscopes use multiple lenses to magnify specimens and provide a two-dimensional image. Stereomicroscopes use two optical paths to provide a three-dimensional view of surface details. Examples of uses include biology studies, forensics, manufacturing quality control, and more. The document also discusses who may have invented the compound microscope and provides references for further reading.
Chromatography
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Glass fractures
The document discusses different types of glass and forensic analysis of glass evidence. It provides information on the physical, optical, and chemical properties of glass that can be analyzed forensically. Specific techniques mentioned include refractive index testing, density determination, microscopic analysis of fractures, and elemental analysis. The document also discusses how analysis of glass evidence can help reconstruct crime scenes and connect suspects to crimes by matching glass fragments.
Internal Ballistics
Internal ballistics is the study of what happens inside the barrel of a firearm from the moment of ignition until the projectile exits. When fired, the projectile is accelerated to high velocity by the burning of propellant gases trapped behind it in the barrel. There are three types of propellant powders - progressive powders increase burning surface as they burn, degressive powders decrease burning surface, and neutral powders maintain a constant burning surface.
External ballistics
The document discusses external ballistics and the factors that affect the trajectory of a bullet. It defines external ballistics as dealing with the motion of a projectile from the muzzle of a weapon to the target. The main factors that influence a bullet's flight are gravity, which pulls it downward, and air resistance, which reduces its velocity. In a vacuum with no air resistance or gravity, a bullet would travel in a straight line at a constant velocity. However, in reality bullets follow a parabolic trajectory due to these forces. The document also discusses other factors like velocity, spin, angle of fire, yaw, drift, and temperature that can impact a bullet's trajectory.
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4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
ESR spectroscopy in liquid food and beverages.pptx
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
The cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Randomised Optimisation Algorithms in DAPHNE
Slides from talk:
Aleš Zamuda: Randomised Optimisation Algorithms in DAPHNE .
Austrian-Slovenian HPC Meeting 2024 – ASHPC24, Seeblickhotel Grundlsee in Austria, 10–13 June 2024
https://ashpc.eu/
Thornton ESPP slides UK WW Network 4_6_24.pdf
ESPP presentation to EU Waste Water Network, 4th June 2024 “EU policies driving nutrient removal and recycling
and the revised UWWTD (Urban Waste Water Treatment Directive)”
The debris of the ‘last major merger’ is dynamically young
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
Micronuclei test.M.sc.zoology.fisheries.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
The pygmy halfbeak Dermogenys colletei, is known for its viviparous nature, this presents an intriguing case of relatively low fecundity, raising questions about potential compensatory reproductive strategies employed by this species. Our study delves into the examination of fecundity and the Gonadosomatic Index (GSI) in the Pygmy Halfbeak, D. colletei (Meisner, 2001), an intriguing viviparous fish indigenous to Sarawak, Borneo. We hypothesize that the Pygmy halfbeak, D. colletei, may exhibit unique reproductive adaptations to offset its low fecundity, thus enhancing its survival and fitness. To address this, we conducted a comprehensive study utilizing 28 mature female specimens of D. colletei, carefully measuring fecundity and GSI to shed light on the reproductive adaptations of this species. Our findings reveal that D. colletei indeed exhibits low fecundity, with a mean of 16.76 ± 2.01, and a mean GSI of 12.83 ± 1.27, providing crucial insights into the reproductive mechanisms at play in this species. These results underscore the existence of unique reproductive strategies in D. colletei, enabling its adaptation and persistence in Borneo's diverse aquatic ecosystems, and call for further ecological research to elucidate these mechanisms. This study lends to a better understanding of viviparous fish in Borneo and contributes to the broader field of aquatic ecology, enhancing our knowledge of species adaptations to unique ecological challenges.
Equivariant neural networks and representation theory
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
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Introduction to Anthropology
- 1. SHREE VAISHNAV VIDYAPEETH VISHWAVIDYALAYA TOPIC: ANTHROPOLOGY SUBMITTED TO: SUBMITTED BY: KETAN PATIL MANSHWINE BANDOR ASST. PROFESSOR BSc. IV SEM, II YEAR
- 17. THANK YOU