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Maitland Jones
Maitland Jones Jr. (born November 23, 1937) is an American experimental chemist. Jones started working at Princeton University in 1964, where he stayed until 2007, where he retired from Princeton and then taught at New York University from 2007 to 2022. He is known for changing how the subject of organic chemistry is taught to undergraduate students, through writing a popular textbook, ''Organic Chemistry'', and re-shaping the course from simple rote learning to one that focuses on scientific problem solving. Education Jones earned a Bachelor of Science, Master of Science, and PhD from Yale University. Career Jones' field of expertise is reactive intermediates, with particular emphasis on carbenes. He has published extensively in the field of quantum organic chemistry, particularly focusing on the mechanism of quantum molecular reactions. His interest areas include carbenes, carboranes, and heterocycles. Over the course of almost forty years, he and his research group have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bullvalene
Bullvalene is a hydrocarbon with the chemical formula . The molecule has a cage-like structure formed by the fusion of one cyclopropane and three cyclohepta-1,4-diene rings. Bullvalene is unusual as an organic molecule due to the and bonds forming and breaking rapidly on the NMR timescale; this property makes it a fluxional molecule. Stereodynamics The bullvalene molecule is a cyclopropane platform with three vinylene arms conjoined at a methine group. This arrangement enables a degenerate Cope rearrangement with the result that all carbon atoms and hydrogen atoms appear equivalent on the NMR timescale. At room temperature the 1H NMR signals average to a rounded peak at 5.76 ppm. At lower temperatures the peak broadens into a mound-like appearance, and at very low temperatures the fluxional behavior of bullvalene is reduced, allowing for 4 total signals to be seen. This pattern is consistent with an exchange process whose rate ''k'' is close to the frequency separation of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Von Eggers Doering
William von Eggers Doering (June 22, 1917 – January 3, 2011) was the Mallinckrodt Professor of Chemistry at Harvard University. Before Harvard, he taught at Columbia (1942–1952) and Yale (1952–1968). Doering was born in Fort Worth, Texas to academics Carl Rupp Doering and Antoinette Mathilde von Eggers, both of whom were professors at Texas Christian University. His maternal great-uncle was the prominent German financier and economist Hjalmar Schacht, sometime President of the ''Reichsbank'' and cabinet minister in Nazi Germany. Doering was an undergraduate at Harvard University, where he took courses with some of the leading organic chemists at the time, including Louis Fieser and Paul Bartlett. He stayed at Harvard for his graduate education, where he studied catalytic hydrogenation under Reginald Linstead, completing his PhD in 1943. Before beginning his independent career, he became famous for completing a (formal) quinine total synthesis with Robert Burns Woodward ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vrije Universiteit
The Vrije Universiteit Amsterdam (abbreviated as ''VU Amsterdam'' or simply ''VU'' when in context) is a public research university in Amsterdam, Netherlands, being founded in 1880. The VU Amsterdam is one of two large, publicly funded research universities in the city, the other being the University of Amsterdam (UvA). The literal translation of the Dutch name ''Vrije Universiteit'' is "Free University". "Free" refers to independence of the university from both the State and the Dutch Reformed Church. Both within and outside the university, the institution is commonly referred to as "the VU". Although founded as a private institution, the VU has received government funding on a parity basis with public universities since 1970. The university is located on a compact urban campus in the southern Buitenveldert neighbourhood of Amsterdam and adjacent to the modern Zuidas business district. The University consistently ranks among the top 150 universities in the world by prominent i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia University
Columbia University (also known as Columbia, and officially as Columbia University in the City of New York) is a private research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church in Manhattan, Columbia is the oldest institution of higher education in New York and the fifth-oldest institution of higher learning in the United States. It is one of nine colonial colleges founded prior to the Declaration of Independence. It is a member of the Ivy League. Columbia is ranked among the top universities in the world. Columbia was established by royal charter under George II of Great Britain. It was renamed Columbia College in 1784 following the American Revolution, and in 1787 was placed under a private board of trustees headed by former students Alexander Hamilton and John Jay. In 1896, the campus was moved to its current location in Morningside Heights and renamed Columbia University. Columbia scientists and scholars have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Wisconsin–Madison
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C & EN
''Chemical & Engineering News'' (''C&EN'') is a weekly news magazine published by the American Chemical Society, providing professional and technical news and analysis in the fields of chemistry and chemical engineering.C&EN Magazine Website Chemical and Engineering News, October 12, 2009, accessed October 12, 2009 It includes information on recent news and research in these fields, career and employment information, business and industry news, government and policy news, funding in these fields, and special reports. The magazine is available to all members of the American Chemical Society. History The magazine was established in 1923,C&EN- Happy Birthday to Us, accessed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TikTok
TikTok, known in China as Douyin (), is a short-form video hosting service owned by the Chinese company ByteDance. It hosts user-submitted videos, which can range in duration from 15 seconds to 10 minutes. TikTok is an international version of Douyin, which was released in the Chinese market in September 2016. It launched in 2017 for iOS and Android in most markets outside of mainland China; however, it became available worldwide only after merging with another Chinese social media service, Musical.ly, on 2 August 2018. TikTok and Douyin have almost the same user interface but no access to each other's content. Their servers are each based in the market where the respective app is available. The two products are similar, but their features are not identical. Douyin includes an in-video search feature that can search by people's faces for more videos of them and other features such as buying, booking hotels and making geo-tagged reviews. Since their launches, TikTok and Douy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical School
A medical school is a tertiary educational institution, or part of such an institution, that teaches medicine, and awards a professional degree for physicians. Such medical degrees include the Bachelor of Medicine, Bachelor of Surgery (MBBS, MBChB, MBBCh, BMBS), Master of Medicine (MM, MMed), Doctor of Medicine (MD), or Doctor of Osteopathic Medicine (DO). Many medical schools offer additional degrees, such as a Doctor of Philosophy (PhD), master's degree (MSc) or other post-secondary education. Medical schools can also carry out medical research and operate teaching hospitals. Around the world, criteria, structure, teaching methodology, and nature of medical programs offered at medical schools vary considerably. Medical schools are often highly competitive, using standardized entrance examinations, as well as grade point averages and leadership roles, to narrow the selection criteria for candidates. In most countries, the study of medicine is completed as an undergraduat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Toronto
The University of Toronto (UToronto or U of T) is a public university, public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park (Toronto), Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution of higher learning in Upper Canada. Originally controlled by the Church of England, the university assumed its present name in 1850 upon becoming a secular institution. As a collegiate university, it comprises eleven colleges each with substantial autonomy on financial and institutional affairs and significant differences in character and history. The university maintains three campuses, the oldest of which, St. George, is located in downtown Toronto. The other two satellite campuses are located in University of Toronto Scarborough, Scarborough and University of Toronto Mississauga, Mississauga. The University of Toronto offers over 700 undergraduate and 200 graduate programs. In all major ranking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alán Aspuru-Guzik
Alán Aspuru-Guzik is a professor of chemistry, computer science, chemical engineering and materials science at the University of Toronto. His research group, the matter lab, studies quantum chemistry, AI for chemical and materials discovery, quantum computing and self-driving chemical. He is the chief scientific officer and a co-founder of quantum computing startup Zapata Computing and the co-founder of Kebotix a company focused on automated chemical and material discovery. Early life Aspuru-Guzik was raised in Mexico City, Mexico. When he was in junior high, he represented Mexico at the International Chemistry Olympiad after which his passion for science, particularly chemistry, grew. Aspuru-Guzik had obtained his Bachelor of Science degree in chemistry from the National Autonomous University of Mexico in 1999. In 2004, he was awarded a Ph.D. in physical chemistry from the University of California, Berkeley. He continued at Berkeley as a postdoctoral fellow between 200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic
The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in an outbreak in the Chinese city of Wuhan in December 2019. Attempts to contain it there failed, allowing the virus to spread to other areas of Asia and later worldwide. The World Health Organization (WHO) declared the outbreak a public health emergency of international concern on 30 January 2020, and a pandemic on 11 March 2020. As of , the pandemic had caused more than cases and confirmed deaths, making it one of the deadliest in history. COVID-19 symptoms range from undetectable to deadly, but most commonly include fever, dry cough, and fatigue. Severe illness is more likely in elderly patients and those with certain underlying medical conditions. COVID-19 transmits when people breathe in air contaminated by droplets ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Study Skills
Study skills or study strategies are approaches applied to learning. Study skills are an array of skills which tackle the process of organizing and taking in new information, retaining information, or dealing with assessments. They are discrete techniques that can be learned, usually in a short time, and applied to all or most fields of study. More broadly, any skill which boosts a person's ability to study, retain and recall information which assists in and passing exams can be termed a study skill, and this could include time management and motivational techniques. Some examples are mnemonics, which aid the retention of lists of information; effective reading; concentration techniques; and efficient note taking. Due to the generic nature of study skills, they must, therefore, be distinguished from strategies that are specific to a particular field of study (e.g. music or technology), and from abilities inherent in the student, such as aspects of intelligence or learning style ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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