The document discusses the importance of properly collecting and documenting evidence at a crime scene. It states that forensic science begins at the crime scene, and if evidence is not recognized and preserved correctly, sophisticated lab analysis cannot salvage the situation. The document outlines steps investigators should take at a crime scene, including securing the area, documenting the scene through photography, sketches and notes, systematically searching for evidence, properly packaging evidence, and establishing the chain of custody.
Chapter 5 death investigation customizedLinda Huber
A forensic pathologist determines the cause and manner of unnatural or unexpected deaths by conducting autopsies and investigating death scenes. During an autopsy, the pathologist examines the body externally for injuries and internally by removing and examining the organs. Samples are collected for toxicology and evidence collection. By correlating the autopsy findings with the death scene investigation, the pathologist can determine the specific cause of death, such as blunt force trauma, sharp force injuries, asphyxiation, or gunshot wounds. The manner of death is also certified as homicide, suicide, accidental or undetermined.
The goal of a crime scene investigation is to recognize, document, and collect evidence. Evidence can be direct, like eyewitness accounts, or circumstantial. Physical evidence includes fingerprints, DNA, and trace evidence. Following Locard's exchange principle, investigators look for transfers between people and objects. Proper documentation through photography, sketching, and note taking is important. Evidence must be properly packaged and maintained in the chain of custody to be useful in reconstructing the crime.
The document provides information on crime scene investigation and evidence collection. It discusses the goals of recognizing, documenting, and collecting evidence at a crime scene to help solve the case. It describes different types of evidence like physical, biological, class, and individual evidence. It outlines important principles like Locard's exchange principle and explains how to properly secure a crime scene, search for evidence, document the scene through photos, sketches and notes, and collect, package and label evidence. The overall aim is to preserve the crime scene and evidence to aid forensic analysis and investigations.
The document provides information about crime scene investigation. It discusses that a crime scene can be any place where a crime was committed or evidence was found. A thorough investigation of the crime scene is important for proving or disproving details. The crime scene is examined methodically with documentation of evidence through photography, sketches, and notes. Evidence is carefully collected, packaged, and labeled while maintaining a chain of custody. A crime scene investigation is a collaborative effort that requires proper procedures to obtain admissible evidence and accurately reconstruct events.
- Crime scene investigation involves collecting potential evidence from the location of a crime. Biological evidence like blood, as well as latent prints, digital evidence, trace evidence, and firearms can all be collected.
- The type of evidence collected depends on the type of crime. For a burglary, trace evidence and DNA would be prioritized. Larger agencies have dedicated crime scene specialists, while smaller ones may use first responders or detectives.
- A crime scene is processed following seven steps: establishing boundaries and hazards, securing the scene, planning collection, an initial survey, documenting, a second survey, and preserving evidence. The most probative evidence is sent to forensic labs for examination.
- Crime scene investigation involves collecting and analyzing evidence from the location where a crime occurred. Biological evidence like blood, as well as latent prints, digital evidence, trace evidence and more may be collected.
- The type of evidence collected depends on the crime. For example, a burglary may involve collecting trace evidence and DNA evidence from points of entry and likely contact areas.
- How a crime scene is processed generally follows seven steps: establishing security; documenting the scene; collecting, packaging and preserving evidence. The most probative evidence is sent to forensic laboratories for detailed examination and analysis.
5W & 1H In the crime scene
Crime Scene searching methods.
If you want to watch the explanation video, then click on the link- https://youtu.be/nWJAxe_66Eg
Chapter 5 death investigation customizedLinda Huber
A forensic pathologist determines the cause and manner of unnatural or unexpected deaths by conducting autopsies and investigating death scenes. During an autopsy, the pathologist examines the body externally for injuries and internally by removing and examining the organs. Samples are collected for toxicology and evidence collection. By correlating the autopsy findings with the death scene investigation, the pathologist can determine the specific cause of death, such as blunt force trauma, sharp force injuries, asphyxiation, or gunshot wounds. The manner of death is also certified as homicide, suicide, accidental or undetermined.
The goal of a crime scene investigation is to recognize, document, and collect evidence. Evidence can be direct, like eyewitness accounts, or circumstantial. Physical evidence includes fingerprints, DNA, and trace evidence. Following Locard's exchange principle, investigators look for transfers between people and objects. Proper documentation through photography, sketching, and note taking is important. Evidence must be properly packaged and maintained in the chain of custody to be useful in reconstructing the crime.
The document provides information on crime scene investigation and evidence collection. It discusses the goals of recognizing, documenting, and collecting evidence at a crime scene to help solve the case. It describes different types of evidence like physical, biological, class, and individual evidence. It outlines important principles like Locard's exchange principle and explains how to properly secure a crime scene, search for evidence, document the scene through photos, sketches and notes, and collect, package and label evidence. The overall aim is to preserve the crime scene and evidence to aid forensic analysis and investigations.
The document provides information about crime scene investigation. It discusses that a crime scene can be any place where a crime was committed or evidence was found. A thorough investigation of the crime scene is important for proving or disproving details. The crime scene is examined methodically with documentation of evidence through photography, sketches, and notes. Evidence is carefully collected, packaged, and labeled while maintaining a chain of custody. A crime scene investigation is a collaborative effort that requires proper procedures to obtain admissible evidence and accurately reconstruct events.
- Crime scene investigation involves collecting potential evidence from the location of a crime. Biological evidence like blood, as well as latent prints, digital evidence, trace evidence, and firearms can all be collected.
- The type of evidence collected depends on the type of crime. For a burglary, trace evidence and DNA would be prioritized. Larger agencies have dedicated crime scene specialists, while smaller ones may use first responders or detectives.
- A crime scene is processed following seven steps: establishing boundaries and hazards, securing the scene, planning collection, an initial survey, documenting, a second survey, and preserving evidence. The most probative evidence is sent to forensic labs for examination.
- Crime scene investigation involves collecting and analyzing evidence from the location where a crime occurred. Biological evidence like blood, as well as latent prints, digital evidence, trace evidence and more may be collected.
- The type of evidence collected depends on the crime. For example, a burglary may involve collecting trace evidence and DNA evidence from points of entry and likely contact areas.
- How a crime scene is processed generally follows seven steps: establishing security; documenting the scene; collecting, packaging and preserving evidence. The most probative evidence is sent to forensic laboratories for detailed examination and analysis.
5W & 1H In the crime scene
Crime Scene searching methods.
If you want to watch the explanation video, then click on the link- https://youtu.be/nWJAxe_66Eg
Physical evidence collected from crime scenes can be used to reconstruct the events of a crime. There are several types of evidence including trace evidence, biological evidence, and direct evidence like fingerprints. It is important that evidence is properly documented, collected, packaged, labeled, and maintained in the chain of custody. A thorough search and documentation of the crime scene helps investigators form a hypothesis of what occurred.
Forensic techniques and crime scene investigationHumnaSaif1
Carlie Jane Brucia, an 11-year-old girl, was abducted and killed in 2004 in Sarasota, Florida. Surveillance video showed Joseph P. Smith, a 37-year-old mechanic with a criminal history, approaching Carlie and leading her away from a car wash. Smith was identified as a suspect and arrested. His DNA matched semen found on Carlie's body. Smith's brother testified that Smith had confessed to killing Carlie after strangling her following rough sex. Smith was indicted on first-degree murder and other charges.
The document discusses crime scene investigation procedures for first responders. It defines key terms related to crime scene investigation such as crime scene, first responder, evidence, and forensic evidence. It outlines the purpose of crime scene investigation as collecting physical evidence to identify suspects and link them to the crime. It also discusses protocols for jurisdictional investigation and maintaining an official police blotter. The document lists standard investigative tools and equipment and methods for recording investigative data like photographs, sketches, written notes, and fingerprint development.
The document provides an overview of crime scene processing, including key principles like Locard's exchange principle and the importance of properly collecting, documenting, and preserving evidence. It discusses establishing boundaries, photographing and diagramming the scene, collecting physical and trace evidence, and maintaining chain of custody for any evidence. Careful and thorough processing following standard protocols is emphasized to avoid compromising potential evidence.
This document provides information about processing a crime scene investigation. It discusses establishing what happened at the crime scene through documentation and evidence collection. It outlines the roles of different personnel involved, including the first responding officer, investigators, medical examiner, and crime scene team. It also describes important procedures like securing the scene, conducting searches, documenting with notes, photos, and sketches, and collecting and packaging evidence while maintaining the chain of custody.
The document provides an overview of crime scene investigation procedures. It discusses establishing the crime scene perimeter and securing evidence, documenting the scene through photography, sketching, and note taking, conducting systematic searches using standard patterns, collecting, packaging, and maintaining chain of custody of evidence, submitting evidence to labs for analysis, and the roles of various personnel including medical examiners. Crime scene investigation aims to reconstruct events and identify suspects through careful documentation and recognition of physical evidence.
This document discusses serological evidence and DNA analysis in criminal investigations. It covers topics like presumptive and confirmatory serological testing, the value of serological evidence, proper collection and packaging of samples, DNA profiling, and uses of DNA analysis like kinship identification and paternity testing. Key points emphasized include properly documenting the chain of custody, selecting exhibits likely to yield probative evidence, and providing all necessary context in evidence submission letters.
Crime scene management involves defining, classifying, documenting and processing crime scenes systematically. It is important to recognize and secure the primary and secondary crime scenes. The first responding officers should assess the scene safety and record initial observations. Crime scene investigators then search and collect evidence according to established protocols while maintaining chain of custody. Reconstructing the crime through analysis of evidence helps determine what events could have occurred. Other roles include investigation by police, judicial proceedings and medical examination to determine cause and manner of death.
Forensic science involves reconstructing events of a crime by determining what happened, how, when, where, and who was involved. It relies on several principles including individuality, exchange, progressive change, comparison, analysis, and probability. Forensic science branches include toxicology, anthropology, odontology, biology, and questioned documents. Toxicology detects toxins in bodily fluids and tissues. Anthropology identifies bones and skeletal remains. Odontology examines teeth and dental work. Biology analyzes plant/animal evidence. Questioned documents examines handwriting, ink, paper, printers, and other materials for evidence.
The document discusses the processes involved in processing a crime scene, including securing and isolating the scene, photographing and sketching the scene, conducting a systematic search for evidence, collecting and packaging physical evidence while maintaining the chain of custody, and maintaining safety at the crime scene. The goal is to gather all relevant physical evidence and document its original location to aid in reconstruction of events.
Essensials of crime scene investigation & evidence managementDr.Khushali Joshi
The document provides an overview of essentials of crime scene investigation and evidence management. It discusses that crime scene investigation involves purposeful documentation of the scene and collection of physical evidence. The key types of evidence include testimonial, physical, and trace evidence. It outlines the standard procedures for processing a crime scene, which includes securing the scene, documenting with photos/sketches, conducting a search, collecting/packaging evidence while maintaining chain of custody, and submitting evidence to a lab. The document provides guidance on proper collection and documentation of various types of common evidence.
This document discusses the importance of crime scene investigation, including the collection and preservation of evidence. It emphasizes that physical evidence found at a crime scene can provide crucial details about the how, what, why of a crime and help identify victims and offenders. It outlines best practices for processing a crime scene such as isolating and securing the area, documenting the scene thoroughly, searching methodically for evidence, collecting and packaging evidence maintaining a proper chain of custody, and submitting evidence to a crime lab. The document stresses that following proper protocols in investigating and documenting a crime scene is essential for obtaining factual evidence that can be used to determine the truth and administer justice.
Essensials of crime scene investigation & evidence managementLegalSaviour
Kindly Find the presentation presented by Dr. Khushali Joshi, Forensic Expert, IEIF Cursos Institute, Pelotas, Brazil in the National Webinar conducted on 14.05.2020 by Legal Saviour
2018 Crime Scenes, Collection and Preservation of Evidence2.pptxdravidmishra1
Crime scene investigation involves carefully documenting conditions at the scene and collecting physical evidence. A crime scene is where a crime took place, and evidence supports assertions about what happened. When surveying a scene, investigators must consider safety, medical assistance needs, hazards, and search warrants. Evidence is tagged, packaged, photographed, and documented on a property page. Maintaining chain of custody from scene to courtroom is crucial for evidence integrity. Biological materials require special handling and packaging. All evidence collection and packaging must be thoroughly documented.
This Workshop is a perfect opportunity for someone who wants to get hands on experience with real forensic techniques. Learn how real investigators examine and process crime scenes, as well as analyze evidence and use to try to solve a crim
e.
This document provides an overview of careers in forensic science. It discusses the education and experience needed to become a forensic scientist, including obtaining at least a bachelor's degree in forensic science or a related field like biology, chemistry, or physics. It also lists the top colleges for forensic science programs and recommends gaining experience through internships. Forensic scientists analyze evidence to determine what occurred in criminal investigations and their work involves tasks like examining evidence, extracting DNA, and writing reports. The field is expected to experience job growth through 2018.
This document discusses the application of photography in law enforcement, specifically for crime scene documentation. It outlines that crime scene photography serves as a permanent record of the scene and is indispensable for presenting evidence in court. The document then covers the uses of photographic evidence, including identification of subjects, preservation of evidence, describing the scene, and substituting for physical evidence. It also discusses the legal implications, admissibility requirements, and categorization of photographic evidence. Overall, the document provides guidance on proper crime scene photography techniques and standards for using photos as evidence in court.
Forensic anthropology plays an important role in disaster situations by assisting in victim identification when bodies are decomposed or fragmented. Investigators use anthropological analysis of bones and other remains to determine characteristics like age, sex, ancestry to help identify John Doe victims. Maintaining a strict chain of custody for any remains and evidence recovered is also crucial for forensic anthropology to be effective and for findings to be admissible in court.
Physical evidence collected from crime scenes can be used to reconstruct the events of a crime. There are several types of evidence including trace evidence, biological evidence, and direct evidence like fingerprints. It is important that evidence is properly documented, collected, packaged, labeled, and maintained in the chain of custody. A thorough search and documentation of the crime scene helps investigators form a hypothesis of what occurred.
Forensic techniques and crime scene investigationHumnaSaif1
Carlie Jane Brucia, an 11-year-old girl, was abducted and killed in 2004 in Sarasota, Florida. Surveillance video showed Joseph P. Smith, a 37-year-old mechanic with a criminal history, approaching Carlie and leading her away from a car wash. Smith was identified as a suspect and arrested. His DNA matched semen found on Carlie's body. Smith's brother testified that Smith had confessed to killing Carlie after strangling her following rough sex. Smith was indicted on first-degree murder and other charges.
The document discusses crime scene investigation procedures for first responders. It defines key terms related to crime scene investigation such as crime scene, first responder, evidence, and forensic evidence. It outlines the purpose of crime scene investigation as collecting physical evidence to identify suspects and link them to the crime. It also discusses protocols for jurisdictional investigation and maintaining an official police blotter. The document lists standard investigative tools and equipment and methods for recording investigative data like photographs, sketches, written notes, and fingerprint development.
The document provides an overview of crime scene processing, including key principles like Locard's exchange principle and the importance of properly collecting, documenting, and preserving evidence. It discusses establishing boundaries, photographing and diagramming the scene, collecting physical and trace evidence, and maintaining chain of custody for any evidence. Careful and thorough processing following standard protocols is emphasized to avoid compromising potential evidence.
This document provides information about processing a crime scene investigation. It discusses establishing what happened at the crime scene through documentation and evidence collection. It outlines the roles of different personnel involved, including the first responding officer, investigators, medical examiner, and crime scene team. It also describes important procedures like securing the scene, conducting searches, documenting with notes, photos, and sketches, and collecting and packaging evidence while maintaining the chain of custody.
The document provides an overview of crime scene investigation procedures. It discusses establishing the crime scene perimeter and securing evidence, documenting the scene through photography, sketching, and note taking, conducting systematic searches using standard patterns, collecting, packaging, and maintaining chain of custody of evidence, submitting evidence to labs for analysis, and the roles of various personnel including medical examiners. Crime scene investigation aims to reconstruct events and identify suspects through careful documentation and recognition of physical evidence.
This document discusses serological evidence and DNA analysis in criminal investigations. It covers topics like presumptive and confirmatory serological testing, the value of serological evidence, proper collection and packaging of samples, DNA profiling, and uses of DNA analysis like kinship identification and paternity testing. Key points emphasized include properly documenting the chain of custody, selecting exhibits likely to yield probative evidence, and providing all necessary context in evidence submission letters.
Crime scene management involves defining, classifying, documenting and processing crime scenes systematically. It is important to recognize and secure the primary and secondary crime scenes. The first responding officers should assess the scene safety and record initial observations. Crime scene investigators then search and collect evidence according to established protocols while maintaining chain of custody. Reconstructing the crime through analysis of evidence helps determine what events could have occurred. Other roles include investigation by police, judicial proceedings and medical examination to determine cause and manner of death.
Forensic science involves reconstructing events of a crime by determining what happened, how, when, where, and who was involved. It relies on several principles including individuality, exchange, progressive change, comparison, analysis, and probability. Forensic science branches include toxicology, anthropology, odontology, biology, and questioned documents. Toxicology detects toxins in bodily fluids and tissues. Anthropology identifies bones and skeletal remains. Odontology examines teeth and dental work. Biology analyzes plant/animal evidence. Questioned documents examines handwriting, ink, paper, printers, and other materials for evidence.
The document discusses the processes involved in processing a crime scene, including securing and isolating the scene, photographing and sketching the scene, conducting a systematic search for evidence, collecting and packaging physical evidence while maintaining the chain of custody, and maintaining safety at the crime scene. The goal is to gather all relevant physical evidence and document its original location to aid in reconstruction of events.
Essensials of crime scene investigation & evidence managementDr.Khushali Joshi
The document provides an overview of essentials of crime scene investigation and evidence management. It discusses that crime scene investigation involves purposeful documentation of the scene and collection of physical evidence. The key types of evidence include testimonial, physical, and trace evidence. It outlines the standard procedures for processing a crime scene, which includes securing the scene, documenting with photos/sketches, conducting a search, collecting/packaging evidence while maintaining chain of custody, and submitting evidence to a lab. The document provides guidance on proper collection and documentation of various types of common evidence.
This document discusses the importance of crime scene investigation, including the collection and preservation of evidence. It emphasizes that physical evidence found at a crime scene can provide crucial details about the how, what, why of a crime and help identify victims and offenders. It outlines best practices for processing a crime scene such as isolating and securing the area, documenting the scene thoroughly, searching methodically for evidence, collecting and packaging evidence maintaining a proper chain of custody, and submitting evidence to a crime lab. The document stresses that following proper protocols in investigating and documenting a crime scene is essential for obtaining factual evidence that can be used to determine the truth and administer justice.
Essensials of crime scene investigation & evidence managementLegalSaviour
Kindly Find the presentation presented by Dr. Khushali Joshi, Forensic Expert, IEIF Cursos Institute, Pelotas, Brazil in the National Webinar conducted on 14.05.2020 by Legal Saviour
2018 Crime Scenes, Collection and Preservation of Evidence2.pptxdravidmishra1
Crime scene investigation involves carefully documenting conditions at the scene and collecting physical evidence. A crime scene is where a crime took place, and evidence supports assertions about what happened. When surveying a scene, investigators must consider safety, medical assistance needs, hazards, and search warrants. Evidence is tagged, packaged, photographed, and documented on a property page. Maintaining chain of custody from scene to courtroom is crucial for evidence integrity. Biological materials require special handling and packaging. All evidence collection and packaging must be thoroughly documented.
This Workshop is a perfect opportunity for someone who wants to get hands on experience with real forensic techniques. Learn how real investigators examine and process crime scenes, as well as analyze evidence and use to try to solve a crim
e.
This document provides an overview of careers in forensic science. It discusses the education and experience needed to become a forensic scientist, including obtaining at least a bachelor's degree in forensic science or a related field like biology, chemistry, or physics. It also lists the top colleges for forensic science programs and recommends gaining experience through internships. Forensic scientists analyze evidence to determine what occurred in criminal investigations and their work involves tasks like examining evidence, extracting DNA, and writing reports. The field is expected to experience job growth through 2018.
This document discusses the application of photography in law enforcement, specifically for crime scene documentation. It outlines that crime scene photography serves as a permanent record of the scene and is indispensable for presenting evidence in court. The document then covers the uses of photographic evidence, including identification of subjects, preservation of evidence, describing the scene, and substituting for physical evidence. It also discusses the legal implications, admissibility requirements, and categorization of photographic evidence. Overall, the document provides guidance on proper crime scene photography techniques and standards for using photos as evidence in court.
Forensic anthropology plays an important role in disaster situations by assisting in victim identification when bodies are decomposed or fragmented. Investigators use anthropological analysis of bones and other remains to determine characteristics like age, sex, ancestry to help identify John Doe victims. Maintaining a strict chain of custody for any remains and evidence recovered is also crucial for forensic anthropology to be effective and for findings to be admissible in court.
ESR spectroscopy in liquid food and beverages.pptxPRIYANKA PATEL
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 selectionCarl Bergstrom
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 debris of the ‘last major merger’ is dynamically youngSérgio Sacani
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.
PPT on Direct Seeded Rice presented at the three-day 'Training and Validation Workshop on Modules of Climate Smart Agriculture (CSA) Technologies in South Asia' workshop on April 22, 2024.
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...Sérgio Sacani
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...Travis Hills MN
By harnessing the power of High Flux Vacuum Membrane Distillation, Travis Hills from MN envisions a future where clean and safe drinking water is accessible to all, regardless of geographical location or economic status.
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...Leonel Morgado
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.
Authoring a personal GPT for your research and practice: How we created the Q...Leonel Morgado
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
The binding of cosmological structures by massless topological defectsSérgio Sacani
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
Immersive Learning That Works: Research Grounding and Paths ForwardLeonel Morgado
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.
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.