Results 101 to 110 of about 22,930 (292)

Self‐Assembly of a Chiral Pyrene–Bifuran–Imide Into Helical and Spherical Nanostructures

Chemistry – A European Journal, EarlyView.
A chiral bifuran–imide derivative (1‐Py2) functionalized with pyrene units and an L‐alanine side chain exhibits solvent‐switchable self‐assembly. Increasing water fraction drives a transition from chiral helical fibers with periodic tail‐to‐tail bilayer packing to achiral nanospheres with orange photoluminescence.
Hadar R. Yakir, Or Dishi, Yael Levi‐Kalisman, Inna Popov, Linda J. W. Shimon, Ori Gidron   +5 more
wiley   +1 more source

Chiral Cycloparaarylenes Incorporating Binaphthyl Units: Dramatic Effects of Peripheral Functionalization on (Chir)Optical Properties

Chemistry – A European Journal, EarlyView.
Chiral cycloparaarylenes (CPAs) incorporating binaphthyl units were synthesized. The methoxy‐substituted and methylenedioxy‐bridged systems adopt D3‐ and C3/C1‐symmetric structures, respectively. They exhibited distinct solid‐state emission and aggregation‐induced emission enhancement (AIEE).
Kazuto Takaishi, Kotaro Nakahara, Kasumi Nishiyama, Tadashi Ema   +3 more
wiley   +1 more source

Potenzial außerschulischer Lernorte zur Förderung transversaler Kompetenzen

CHEMKON, EarlyView.
Transversale Kompetenzen wie Kommunikation, Kollaboration, kritisches Denken und Entscheidungsfindung sind zentral für schulischen Erfolg, berufliche Handlungsfähigkeit und gesellschaftliche Teilhabe. Dennoch werden diese Kompetenzen im schulischen Kontext bislang häufig nur niederschwellig gefördert.
Jannis Memmen, Silvija Markic
wiley   +1 more source

Sanskrit camara– 'yak' et tibétain ⁿbri 'yak femelle'

, 2016
International audienceCet article propose une étymologie au sanskrit camara ...
Jacques, Guillaume
core  

Comparative Analysis of Testicular Transcriptional and Translational Landscapes in Yak and Cattle–Yak: Implications for Hybrid Male Sterility

Cattle–yak, a hybrid of yak and cattle, exhibits significant heterosis but male infertility, hindering heterosis fixation. Although extensive research has been conducted on transcriptional mechanisms in the testes of cattle–yak, the understanding of ...
Mengli Cao, Jie Pei, Lin Xiong, Xian Guo, Ziqiang Ding, Shaoke Guo, Qianyun Ge, Liyan Hu   +7 more
core   +1 more source

Assessing the accuracy and stability of variable importance in species distribution modelling algorithms through sample perturbations

Ecography, EarlyView.
Variable importance derived from species distribution modelling (SDM) is widely used to identify key environmental drivers of species distributions. However, the reliability of these inferences has rarely been systematically evaluated, particularly with respect to their sensitivity to individual occurrences.
He Wu, Zhaoning Wu, Yunzhi Liu, Wenfang Zhang, Jiechen Wang   +4 more
wiley   +1 more source

Genotypic and phenotypic characterization of the yak (bos grunniens) and yak farming systems in Bhutan

, 2000
Bhutan is interested in the conservation of its genetic resources including the yak. Conservation programs need to be based on objective criteria. Genetic and phenotypic distinctiveness of a breed or population is considered one of the main criteria for ...
Dorji, Tashi
core   +1 more source

How to Milk a Yak: Embodied Learning with Yaks in Practice

Suomen Antropologi: Journal of the Finnish Anthropological Society
This essay is based on an ethnographic study at a self-subsistence-oriented yak herding village in Tibet (Tibetan Autonomous Region, China). I demonstrate how the social-biophysical profile and the life history of the researcher influences the research process–that is, how the individuality of the researcher’s body (e.g., gender, physical fitness ...
openaire   +1 more source

The ultra-structural changes of mitochondria in the yak heart with aging.

, 2016
A: Mitochondria aggregated around the nucleus in 1-day-old yak (arrowheads); B: Mitochondria ridge was uniform and well distributed (arrowheads) in 6-month-old yak. C: Giant mitochondria and the irregular ridge in 5-year-old yak (arrowheads).
Yan Cui (9885), Junwei Hu (2512180), Penggang Liu (2512177), Sijiu Yu (2512183), Yanyu He (2512186)   +4 more
core   +1 more source

Assessment of the effects of microwave‐produced biodiesel blends on electric generator performance and emissions

Environmental Progress &Sustainable Energy, EarlyView.
Abstract Biodiesels are emerging as alternatives to diesel fuel. However, to be a feasible solution, biodiesels must meet strict criteria including high efficiency and minimal environmental impact. The current study focuses on evaluating ethyl ester biodiesel and its blends with diesel fuel to assess their potential.
Ilham Yahya, Fakher Hamdi, Mehrez Gassoumi, Tommaso Giannoni, Andrea Nicolini, Hakan Serhad Soyhan, Ridha Ennetta   +6 more
wiley   +1 more source