Results 61 to 70 of about 337,593 (217)

Synthesis and Structural Study of Iodonium Ylides Derived From 2‐Iodosylbenzenesulfonic Acid: Reagents for Preparation of Annulated Thiazoles

European Journal of Organic Chemistry, Volume 29, Issue 32, 24 August 2026.
New ylides of two different types were prepared by reaction of 2‐iodosylbenzenesulfonic acid with the corresponding 1,3‐cyclohexanediones under acidic or basic conditions. These compounds have a typical for iodonium ylides structure with the CIC angles 94.18° –97.25° and the IC bond distances between 2.08 and 2.13 Å.
Dmitry M. Noskov, Matvey K. Shurikov, Irina A. Mironova, Natalia S. Soldatova, Akira Yoshimura, Akio Saito, Mekhman S. Yusubov, Viкtor V. Zhdankin   +7 more
wiley   +1 more source

EPIDEMIOLOGY OF COLORECTAL CANCER IN TOMSK REGION [PDF]

, 2017
Background. Colorectal cancer is the third most common cancer worldwide. The tendency towards increased incidence of colorectal cancer in Tomsk region correlates with World and Russian tendencies.
M. V. Vusik, O. V. Cheremisina, L. F. Pisareva, I. O. Spivakova, I. N. Odintsova   +4 more
core   +1 more source

Prioritizing Shark, Ray, and Chimaera Conservation in Rapidly Changing Polar Waters

Global Change Biology, Volume 32, Issue 8, August 2026.
Polar sharks, rays, and chimaeras face growing pressures from changing sea‐ice conditions, expanding fisheries, and limited protection. Our assessment highlights where critical habitats occur and how Important Shark and Ray Areas (ISRAs) can support more targeted conservation and fisheries management across the Arctic and Antarctic.
Vanessa B. Bettcher, Amanda Batlle‐Morera, Peter M. Kyne, Ryan Charles, Emiliano García‐Rodríguez, Christoph A. Rohner, Asia O. Armstrong, Margaret O’Leary Amsler, Natalia V. Chernova, Brynn M. Devine, Andrey V. Dolgov, Meghan M. Donovan, Johanna Faure, Brittany Finucci, Jonathan A. D. Fisher, Rachel A. S. Forbes, Kevin J. Hedges, Phil R. Hollyman, Nigel E. Hussey, Romaric Jac, David W. Kulka, Alexei M. Orlov, Clara Péron, Matthias Schaber, Eric Ste‐Marie, Simon Weigmann, Rima W. Jabado   +26 more
wiley   +1 more source

Biological Diversity (Theories, Measures and Data sampling techniques) : massive open online course. [PDF]

, 2015
The course presents an overview of the theory behind biological diversity evolution and dynamics and of methods for diversity calculation and estimation.
Cazzolla Gatti, Roberto
core   +1 more source

Haplotype‐resolved genome assembly of a male Dioscorea alata cultivar reveals the structure and evolution of young sex chromosomes

The Plant Journal, Volume 127, Issue 4, August 2026.
SUMMARY Dioscorea alata L., the most widely cultivated yam species, exhibits dioecy (XY system) and a strong male‐biased sex ratio. These two major constraints limit parental combinations and hinder breeding progress. To get insight into the sex chromosome structure and evolution in D.
Komivi Dossa, Xiaojun Su, Yedomon Ange Bovys Zoclanclounon, Yao Chen, Muhammad Amjad Nawaz, Peng Ni, Ting Qiu, Gang Chen, Erick Malédon, Marie‐Claire Gravillon, Christophe Perrot, Elie Nudol, Lévy Laurent, Moussa Diouf, Petre I. Dobrev, Benjamin Karikari, Bertrand Fouks, Gemma Arnau, Pierre Mournet, Jianxin Wang, Hanâ Chaïr   +20 more
wiley   +1 more source

Is the Scholarly System Breaking Down?

Learned Publishing, Volume 39, Issue 3, July 2026.
ABSTRACT On the back of countless warnings that the scholarly system is seriously being threatened, indeed, upended by fraud, fakery and numerous bad practices, we set out to establish the extent to which this is true by asking the people who are, arguably, in the best position to know—early career researchers (ECRs).
David Nicholas, Eti Herman, John Akeroyd, Abdullah Abrizah, Marzena Swigon, Jorge Revez, Blanca Rodríguez‐Bravo, Tatyana Polezhaeva   +7 more
wiley   +1 more source

Popov Mikhail Andreyevich (1903—1986). To the 100^th birthday

Бюллетень сибирской медицины, 2003
The biography of an honored doctor of RF, a head surgeon of Tomsk region (1953—1967) and a reader of Tomsk Medical Institute (today SibSMU) M.A. Popov has been presented.
O. A. Ivchenko, S. F. Fominykh, G. I. Mendrina, M. V. Gribovsky   +3 more
doaj   +1 more source

Do Early Career Researchers Consider AI as an Opportunity or a Threat? A Pathfinding Study

Learned Publishing, Volume 39, Issue 3, July 2026.
ABSTRACT The article presents the latest (2025) iteration of the Harbingers longitudinal project on early career researchers (ECRs), artificial intelligence (AI) and scholarly communications. In conversation with a purposive and diverse sample of more than 60 ECRs in six countries and numerous subjects, we present an evaluation of a pressing issue ...
David Nicholas, David Clark, Abdullah Abrizah, John Akeroyd, Eti Herman, Jorge Revez, Blanca Rodríguez‐Bravo, Marzena Swigon, Tatyana Polezhaeva, Anne Gere   +9 more
wiley   +1 more source

Организация фенологических наблюдений по географии в школе

Научно-педагогическое обозрение
Рассматривается проблема внедрения фенологических наблюдений в школе. Описана история фенологических наблюдений и России и Томске. Приведены примеры использования фенологических наблюдений в сельском хозяйстве.
Ершова Татьяна Владимировна, Шмырова Дарья Евгеньевна, Петрова Елена Юрьевна   +2 more
doaj   +1 more source

Food of the Siberian Tatars in the ethno-cultural processes of the 17th–18th centuries (by the materials of the culture of the Tomsk group of Tatars) [PDF]

Вестник археологии, антропологии и этнографии
In the paper, the food of the Tomsk group of the Siberian Tatars of the 17th–18th centuries, settled in the Tomsk Ob River basin (Western Siberia), is analysed. The aim of the research is to determine and characterise ethno-cultural processes in the food
Tomilov N.A.
doaj   +1 more source