Model of the DNA
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The document describes James Watson and Francis Crick's 1953 model of DNA, which was influenced by Rosalind Franklin's X-ray crystallography images without her permission. Their double helix model suggested that DNA could store genetic information in its base pairs and replicate itself.
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Genetics- Historical Highlights
Genetics is the study of heredity and the variation of inherited traits. The document outlines the major subdivisions and branches of genetics and provides important milestones in the field. It notes that genetics began with Mendel's experiments on pea plants in 1865 which demonstrated that heredity is transmitted in discrete units. Later discoveries include identifying DNA as the genetic material in 1944, determining the double helix structure of DNA in 1953, cracking the genetic code in 1966, and completing the first draft of the human genome in 1990. The future of genetics involves continued research to understand all the information contained in the human genome to better understand diseases and develop new treatments.
Nature review rosalind franklin
1) Rosalind Franklin was a British biophysicist whose X-ray crystallography work on DNA was critical to Watson and Crick's discovery of the DNA double helix structure, though she was not recognized at the time.
2) Franklin's work included determining that DNA had phosphate groups on the outside and existed in two forms, and her X-ray photograph provided evidence of DNA's helical structure. Watson and Crick saw her unpublished work without her knowledge.
3) After Franklin's early death from cancer, Watson's dismissive comments about her in his book launched her status as a feminist icon and "wronged heroine" whose contributions were overlooked due to sexism in science.
Rosalind elsie franklin
Rosalind Franklin was a British biophysicist and X-ray crystallographer who made several important contributions to the understanding of DNA structure. She discovered that DNA could crystallize into two different forms, A and B, and developed techniques to separate these forms. Her most important contribution was using X-ray diffraction images to show that DNA has a double helix structure. If not for her early death from cancer, she likely would have received a Nobel Prize for her work determining the structure of DNA.
Unit 5: Watson, Crick, & Franklin
The race to unlock one of the great mysteries of life, the structure of DNA.
Register to explore the whole course here: https://school.bighistoryproject.com/bhplive?WT.mc_id=Slideshare12202017
Lesson 13 The DNA molecule
In 1952, Rosalind Franklin obtained a photograph of DNA known as Photograph 51 that helped prove its double helix structure. In 1953, James Watson and Francis Crick described the double helix structure of DNA in the journal Nature. The DNA molecule contains nucleotides with nitrogenous bases that form two antiparallel and complementary strands that twist together in the shape of a double helix.
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DNA is a very important fact of life. And the evolution of the DNA is an very important thing to studied in various where the biology links. In this presentation, the history of the DNA is presented in a short manner.
Ping on the E-Mail in case of the removal and false information found.
Dna structure 8° i
DNA is made up of nucleotides that contain sugar, phosphate, and nitrogen base groups. The order of the four nitrogen bases - adenine, thymine, guanine, and cytosine - forms the genetic code. Nucleotides bond together to form a double helix structure, with bases pairing between strands. DNA molecules are packaged into chromosomes inside cells. The structure of DNA was discovered in 1953 by Watson, Crick, and Wilkins, revealing how genetic information is stored and passed down.
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The document outlines the major discoveries in DNA research from 1910 to 1953. It begins with Thomas Morgan's confirmation in 1910 that chromosomes are the molecules of inheritance. Important early experiments were conducted by Griffith in 1928 and Avery in 1944 suggesting DNA was the molecule of inheritance. In 1950, Chargaff determined purine and pyrimidine amounts were equal in DNA strands. Franklin photographed DNA in 1952 providing evidence it was a double strand. Watson and Crick used this photo and Chargaff's rules to develop their 1953 double helix model of DNA's structure.
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Genetics- Historical Highlights
Genetics is the study of heredity and the variation of inherited traits. The document outlines the major subdivisions and branches of genetics and provides important milestones in the field. It notes that genetics began with Mendel's experiments on pea plants in 1865 which demonstrated that heredity is transmitted in discrete units. Later discoveries include identifying DNA as the genetic material in 1944, determining the double helix structure of DNA in 1953, cracking the genetic code in 1966, and completing the first draft of the human genome in 1990. The future of genetics involves continued research to understand all the information contained in the human genome to better understand diseases and develop new treatments.
Nature review rosalind franklin
1) Rosalind Franklin was a British biophysicist whose X-ray crystallography work on DNA was critical to Watson and Crick's discovery of the DNA double helix structure, though she was not recognized at the time.
2) Franklin's work included determining that DNA had phosphate groups on the outside and existed in two forms, and her X-ray photograph provided evidence of DNA's helical structure. Watson and Crick saw her unpublished work without her knowledge.
3) After Franklin's early death from cancer, Watson's dismissive comments about her in his book launched her status as a feminist icon and "wronged heroine" whose contributions were overlooked due to sexism in science.
Rosalind elsie franklin
Rosalind Franklin was a British biophysicist and X-ray crystallographer who made several important contributions to the understanding of DNA structure. She discovered that DNA could crystallize into two different forms, A and B, and developed techniques to separate these forms. Her most important contribution was using X-ray diffraction images to show that DNA has a double helix structure. If not for her early death from cancer, she likely would have received a Nobel Prize for her work determining the structure of DNA.
Unit 5: Watson, Crick, & Franklin
The race to unlock one of the great mysteries of life, the structure of DNA.
Register to explore the whole course here: https://school.bighistoryproject.com/bhplive?WT.mc_id=Slideshare12202017
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In 1952, Rosalind Franklin obtained a photograph of DNA known as Photograph 51 that helped prove its double helix structure. In 1953, James Watson and Francis Crick described the double helix structure of DNA in the journal Nature. The DNA molecule contains nucleotides with nitrogenous bases that form two antiparallel and complementary strands that twist together in the shape of a double helix.
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DNA is a very important fact of life. And the evolution of the DNA is an very important thing to studied in various where the biology links. In this presentation, the history of the DNA is presented in a short manner.
Ping on the E-Mail in case of the removal and false information found.
Dna structure 8° i
DNA is made up of nucleotides that contain sugar, phosphate, and nitrogen base groups. The order of the four nitrogen bases - adenine, thymine, guanine, and cytosine - forms the genetic code. Nucleotides bond together to form a double helix structure, with bases pairing between strands. DNA molecules are packaged into chromosomes inside cells. The structure of DNA was discovered in 1953 by Watson, Crick, and Wilkins, revealing how genetic information is stored and passed down.
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The document outlines the major discoveries in DNA research from 1910 to 1953. It begins with Thomas Morgan's confirmation in 1910 that chromosomes are the molecules of inheritance. Important early experiments were conducted by Griffith in 1928 and Avery in 1944 suggesting DNA was the molecule of inheritance. In 1950, Chargaff determined purine and pyrimidine amounts were equal in DNA strands. Franklin photographed DNA in 1952 providing evidence it was a double strand. Watson and Crick used this photo and Chargaff's rules to develop their 1953 double helix model of DNA's structure.
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The document provides a history of molecular biology, describing how it emerged from the union of biochemistry, genetics, microbiology, and virology in the 1930s. It summarizes several major discoveries and events, including identifying DNA as the genetic material in 1944, determining the double helix structure of DNA in 1953, cracking the genetic code in the 1960s, and using new technologies like X-ray crystallography to study macromolecules. The document traces how molecular biology aims to explain life at the molecular level starting from nucleic acids and proteins.
A Short History of DNA
Johann Friedrich Miescher first characterized DNA in 1869 after extracting it from cell nuclei where he called the substance "nuclein". Through the late 19th century, scientists determined DNA's components include sugars, phosphates, and nitrogenous organic bases. In the early 20th century, models proposed DNA as made of repeating tetranucleotide units. Rosalind Franklin's X-ray diffraction images and the work of Chargaff supported that DNA had a regular structure. Watson and Crick then used this evidence to propose their famous double helix model of DNA structure in 1953, with two intertwined strands held together by base pairing. This established DNA as the genetic material and explained its ability to self-replicate and
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1. During DNA replication, the two strands of the DNA double helix separate and each strand serves as a template for assembling a new complementary strand. This process is semi-conservative, resulting in two double helices each with one original strand and one new strand.
2. Watson and Crick discovered that DNA has a double helix structure with bases pairing across the strands. This explained Chargaff's rules and allowed DNA to replicate semiconservatively using each strand as a template.
3. DNA replication involves many enzymes that proofread the DNA and repair any errors to maintain high-fidelity copying of the genetic material from one cell to the next.
The Discovery of DNA
Rosalind Franklin was an expert in using X-ray crystallography techniques to study DNA structure. Her clear images of DNA, including photograph 51, provided essential information about DNA's structure. Crick and Watson obtained Franklin's data from Wilkins and used it to confirm their ideas about DNA's double-helix structure. Though her work was instrumental in the discovery, Franklin was not recognized at the time since Watson's memoir disparaged her and she had died before the 1962 Nobel Prize was awarded to Crick, Watson, and Wilkins for discovering the structure of DNA.
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This document lists 6 prominent female scientists and their fields of research: Jacqueline K. Barton conducts DNA research, Melissa Franklin builds complex particle detectors, Shirley Ann Jackson studies nuclear physics, Cherry Murray examines colloidal systems, Adriana C. Ocampo Uria is a planetary scientist, and Geraldine Seydoux researches molecular biology and genetics.
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The document discusses the history and structure of DNA. It describes how DNA was discovered to be the genetic material through experiments in the 1800s and 1900s. Key figures like Watson, Crick, Franklin and Chargaff contributed to determining DNA's double helix structure and the rules of base pairing between A-T and G-C. The structure forms a spiral with the bases on the inside and a sugar-phosphate backbone on the outside, held together by hydrogen bonds between the paired bases.
Discovering DNA Timeline
Frederick Griffith discovered in 1928 that heat-killed bacteria contained a transforming factor that could change harmless bacteria into disease-causing bacteria. Oswald Avery and colleagues in 1944 determined that this transforming factor was DNA. Rosalind Franklin's x-ray crystallography work in 1952 provided evidence that DNA has a helical structure, which James Watson and Francis Crick used to propose their double helix model of DNA structure in 1953.
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A presentation by Thatayaone Ezekiel Dinama, Kago Relaeng and Michael Moseneke made to the Cardiff Sixth Form College A-Level BioMedical Society on the amazing discovery of the G-Quadruple structure of DNA. The discovery has many unfathomable potential benefits as far as health is concerned. Being interested in studying Medicine (Clinical or Academic) I found it a really intriguing research topic of recent times.
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The document discusses the key components and structures of DNA and RNA. It describes DNA as containing the genetic material that is inherited and determines traits, and that it has a double helix structure. RNA is composed of different types that have various functions and is involved in protein synthesis. The double helix model of DNA was discovered in 1953 by James Watson and Francis Crick based on prior research by Rosalind Franklin using X-ray diffraction methods.
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The document summarizes the history of discoveries leading to the understanding that DNA is the molecule of heredity. It describes early experiments in the 1900s and 1920s by scientists like Griffith who found that traits could be transferred between bacteria. Further work by Avery in 1944 found that DNA was responsible for this transformation. Chargaff discovered proportional relationships between DNA bases within species. Experiments in the 1950s by Hershey and Chase and the work of Franklin, Wilkins, Watson and Crick ultimately revealed DNA's double helix structure and its role in storing and transmitting genetic information from parents to offspring.
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This document lists 6 notable female scientists and their fields of research. Jacqueline K. Barton conducts DNA research, Melissa Franklin builds complex particle detectors, and Shirley Ann Jackson works in nuclear physics. Cherry Murray studies colloidal systems, Adriana C. Ocampo Uria is a planetary scientist, and Geraldine Seydoux's field is molecular biology and genetics.
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The document discusses the discovery of the structure of DNA. In 1953, James Watson and Francis Crick determined that DNA consists of two strands coiled around each other in a double helix formation. They were able to deduce this structure based on the work of Rosalind Franklin and Maurice Wilkins. Franklin's X-ray diffraction images, especially her Photo 51, provided key evidence of DNA's structure without which Watson and Crick's discovery would not have been possible. While all four scientists contributed to the discovery, only Watson, Crick, and Wilkins received a Nobel Prize in 1962 for their work.
DNA: BOOK OF LIFE
DNA is a double-helix macromolecule that contains genetic material found in the nuclei and mitochondria of living cells. It determines the characteristics of organisms and is composed of nucleotides with phosphate, sugar, and nitrogen bases. James Watson and Francis Crick discovered the double helix structure of DNA in the 1950s, which consists of two strands coiled around each other with complementary nucleotide base pairs of adenine bonding with thymine and cytosine bonding with guanine. DNA contains the entire set of genetic instructions for building and maintaining organisms.
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Genes are segments of DNA that carry hereditary information determining traits. The double helix model of DNA was discovered in 1953 by Watson and Crick based on Rosalind Franklin's research using X-ray diffraction that showed DNA's spiral staircase structure. DNA contains the genetic material passed down from parents and is composed of nucleic acids including nucleotides of purines and pyrimidines. RNA also contains nucleic acids but has different types that serve various functions in protein synthesis and cell processes. Mutations in DNA can be beneficial or detrimental and cause changes in genetic sequences.
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Genes are segments of DNA that carry hereditary information determining traits. The double helix model of DNA was discovered in 1953 by Watson and Crick based on Rosalind Franklin's research using X-ray diffraction that showed DNA's spiral staircase structure. DNA contains the genetic material passed down from parents and is composed of nucleic acids including nucleotides of purines and pyrimidines. RNA also contains nucleic acids but has different types that serve various functions in protein synthesis and cell processes. Mutations in DNA can be beneficial or detrimental and cause changes in genetic sequences.
Dna the hereditary material
DNA is a molecule that contains the genetic instructions used in the development and functioning of all living organisms. It is made up of nucleotides with phosphate groups and a sugar group joined in a chain to form a double helix structure. James Watson, Francis Crick and others discovered that DNA has a double helix structure in 1953 and that it can carry biological information through its sequence of four nitrogen bases: adenine, thymine, guanine and cytosine. DNA was first discovered and extracted by Friedrich Miescher in 1869 and is found inside the chromosomes of cells, carrying the instructions for building and maintaining organisms.
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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
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3:国家专业人才认证中心颁发入库证书
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EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
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.
The binding of cosmological structures by massless topological defects
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
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A Short History of DNA
Johann Friedrich Miescher first characterized DNA in 1869 after extracting it from cell nuclei where he called the substance "nuclein". Through the late 19th century, scientists determined DNA's components include sugars, phosphates, and nitrogenous organic bases. In the early 20th century, models proposed DNA as made of repeating tetranucleotide units. Rosalind Franklin's X-ray diffraction images and the work of Chargaff supported that DNA had a regular structure. Watson and Crick then used this evidence to propose their famous double helix model of DNA structure in 1953, with two intertwined strands held together by base pairing. This established DNA as the genetic material and explained its ability to self-replicate and
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3. DNA replication involves many enzymes that proofread the DNA and repair any errors to maintain high-fidelity copying of the genetic material from one cell to the next.
The Discovery of DNA
Rosalind Franklin was an expert in using X-ray crystallography techniques to study DNA structure. Her clear images of DNA, including photograph 51, provided essential information about DNA's structure. Crick and Watson obtained Franklin's data from Wilkins and used it to confirm their ideas about DNA's double-helix structure. Though her work was instrumental in the discovery, Franklin was not recognized at the time since Watson's memoir disparaged her and she had died before the 1962 Nobel Prize was awarded to Crick, Watson, and Wilkins for discovering the structure of DNA.
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The document discusses the history and structure of DNA. It describes how DNA was discovered to be the genetic material through experiments in the 1800s and 1900s. Key figures like Watson, Crick, Franklin and Chargaff contributed to determining DNA's double helix structure and the rules of base pairing between A-T and G-C. The structure forms a spiral with the bases on the inside and a sugar-phosphate backbone on the outside, held together by hydrogen bonds between the paired bases.
Discovering DNA Timeline
Frederick Griffith discovered in 1928 that heat-killed bacteria contained a transforming factor that could change harmless bacteria into disease-causing bacteria. Oswald Avery and colleagues in 1944 determined that this transforming factor was DNA. Rosalind Franklin's x-ray crystallography work in 1952 provided evidence that DNA has a helical structure, which James Watson and Francis Crick used to propose their double helix model of DNA structure in 1953.
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The document discusses the discovery of the structure of DNA. In 1953, James Watson and Francis Crick determined that DNA consists of two strands coiled around each other in a double helix formation. They were able to deduce this structure based on the work of Rosalind Franklin and Maurice Wilkins. Franklin's X-ray diffraction images, especially her Photo 51, provided key evidence of DNA's structure without which Watson and Crick's discovery would not have been possible. While all four scientists contributed to the discovery, only Watson, Crick, and Wilkins received a Nobel Prize in 1962 for their work.
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DNA is a double-helix macromolecule that contains genetic material found in the nuclei and mitochondria of living cells. It determines the characteristics of organisms and is composed of nucleotides with phosphate, sugar, and nitrogen bases. James Watson and Francis Crick discovered the double helix structure of DNA in the 1950s, which consists of two strands coiled around each other with complementary nucleotide base pairs of adenine bonding with thymine and cytosine bonding with guanine. DNA contains the entire set of genetic instructions for building and maintaining organisms.
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Genes are segments of DNA that carry hereditary information determining traits. The double helix model of DNA was discovered in 1953 by Watson and Crick based on Rosalind Franklin's research using X-ray diffraction that showed DNA's spiral staircase structure. DNA contains the genetic material passed down from parents and is composed of nucleic acids including nucleotides of purines and pyrimidines. RNA also contains nucleic acids but has different types that serve various functions in protein synthesis and cell processes. Mutations in DNA can be beneficial or detrimental and cause changes in genetic sequences.
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Genes are segments of DNA that carry hereditary information determining traits. The double helix model of DNA was discovered in 1953 by Watson and Crick based on Rosalind Franklin's research using X-ray diffraction that showed DNA's spiral staircase structure. DNA contains the genetic material passed down from parents and is composed of nucleic acids including nucleotides of purines and pyrimidines. RNA also contains nucleic acids but has different types that serve various functions in protein synthesis and cell processes. Mutations in DNA can be beneficial or detrimental and cause changes in genetic sequences.
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DNA is a molecule that contains the genetic instructions used in the development and functioning of all living organisms. It is made up of nucleotides with phosphate groups and a sugar group joined in a chain to form a double helix structure. James Watson, Francis Crick and others discovered that DNA has a double helix structure in 1953 and that it can carry biological information through its sequence of four nitrogen bases: adenine, thymine, guanine and cytosine. DNA was first discovered and extracted by Friedrich Miescher in 1869 and is found inside the chromosomes of cells, carrying the instructions for building and maintaining organisms.
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Researchers from the University of Massachusetts Medical School, Institut Curie in Paris and Stanford University studied the structure of the inactive X chromosome, known as the Barr body, in female mammals. They discovered that the Barr body contains two separately packed lobes of condensed inactive DNA separated by a highly repetitive segment of DNA. This suggests the repetitive DNA may play a role in organizing the Barr body. A separate study from the University of Valencia found that females have a protective effect from genetic mutations due to having two X chromosomes, whereas males only have one unprotected X chromosome, helping to explain differences in lifespan between sexes. Understanding normal genetic expression and abnormalities could enable development of specific medical treatments tailored to individuals.
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Phenomics assisted breeding in crop improvement
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.
在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
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留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
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
8.Isolation of pure cultures and preservation of cultures.pdf
Isolation of pure culture, its various method.
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
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.
The binding of cosmological structures by massless topological defects
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.
20240520 Planning a Circuit Simulator in JavaScript.pptx
Evaporation step counter work. I have done a physical experiment.
(Work in progress.)
Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
4.Indirect Titration
Masking agent, Demasking agents
formation of complex
comparition between masking and demasking agents,
Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
Miscellaneous methods.
Complex titration with EDTA.
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
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.
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
3D Particle-In-Cell (PIC) algorithm,
Plasma expansion in the dipole magnetic field.
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).
如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样
原版纸张【微信：741003700 】【(uvic毕业证书)维多利亚大学毕业证】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
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
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
Authoring a personal GPT for your research and practice: How we created the Q...
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.
原版制作(carleton毕业证书)卡尔顿大学毕业证硕士文凭原版一模一样
原版纸张【微信：741003700 】【(carleton毕业证书)卡尔顿大学毕业证】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
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
SAR of Medicinal Chemistry 1st by dk.pdf
In this presentation include the prototype drug SAR on thus or with their examples .
Syllabus of Second Year B. Pharmacy
2019 PATTERN.
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...Abdul Wali Khan University Mardan,kP,Pakistan
hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skillsRecently uploaded (20)
8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
20240520 Planning a Circuit Simulator in JavaScript.pptx
20240520 Planning a Circuit Simulator in JavaScript.pptx
Compexometric titration/Chelatorphy titration/chelating titration
Compexometric titration/Chelatorphy titration/chelating titration
Equivariant neural networks and representation theory
Equivariant neural networks and representation theory
ESR spectroscopy in liquid food and beverages.pptx
ESR spectroscopy in liquid food and beverages.pptx
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Authoring a personal GPT for your research and practice: How we created the Q...
Authoring a personal GPT for your research and practice: How we created the Q...
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
Model of the DNA
- 1. Model of the DNA
- 2. H I S T O R Y
- 4. Their model was influenced by data from other researchers, including an X-ray image taken by British biophysicist Rosalind Franklin.
- 8. When X-rays bounce through a sample of DNA, they form an x- shaped pattern.
- 9. Without Franklin’s permission, her colleague Maurice Wilkins showed the data to Watson and Crick.
- 13. Furthermore, they noted that the model suggested ways in which DNA could do two major biological functions:
- 14. Store information and replicate itself.