Results 61 to 70 of about 3,789 (261)

Assessing the Estimands and Estimates of Hospitalization Rates in Health Economics and Clinical Medicine

Health Economics, EarlyView.
ABSTRACT Even though data on hospital admissions are widely used in health research, hospitalization‐related estimands measured using these data are not always clearly conceptualized. Consequently, estimators of these quantities can have unclear rationales and undesirable properties.
Aditya Jain, Gil Peled, Filip Obradović, Federico Crippa, Yeshaya Nussbaum, Michael Gmeiner, Daniela P. Ladner, Charles F. Manski   +7 more
wiley   +1 more source

Distribution Patterns and Influencing Factors of Engraulis japonicus Spawning Grounds in Offshore Waters of the Liaoning Province in the North Yellow Sea

Progress in Fishery Sciences
The ichthyoplankton stage is the stage that is most vulnerable to changes in the marine environment in the development cycle of marine fish. Subtle changes in the marine environment have a strong impact on fish survival, development, and growth.
Peidong CUI, Xiaodong BIAN, Yuxuan ZHANG, Xiujuan SHAN, Xianshi JIN, Huibin WANG   +5 more
doaj   +1 more source

Construction and Application of the Habitat Quality Index of Eriocheir sinensis Spawning Grounds

Progress in Fishery Sciences
Eriocheir sinensis is an important fishery resource in the Yangtze River basin, which has brought about huge socio-economic benefits. The estuarine spawning grounds of E. sinensis, however, has experienced negative effects, such as habitat alteration and
Nan DU, Tingting ZHANG, Zhi GENG, Tao ZHANG, Gang YANG, Feng ZHAO, Ping ZHUANG   +6 more
doaj   +1 more source

GIS methods for inventory of pacific salmons spawning grounds in the Amur River

Известия ТИНРО, 2020
Inventory of spawning grounds is an important tool for estimation of pacific salmons abundance and adequate management of their stocks. A set of the most up-to-date, relevant and effective methods based upon geographic information system (GIS) is ...
V. V. Sviridov, S. F. Zolotukhin
doaj   +1 more source

Environmental regulation of individual depth on a cod spawning ground [PDF]

Aquatic Biology, 2012
Fine-scale characteristics of spawning grounds may provide the opportunity for cod Gadus morhua L. to regulate their external environment by adjusting their depth. Ultrasonic telemetry was used to study how the environment influenced the depth-related behaviour of individual wild and farmed cod on a spawning ground.
Meager, Justin J., Skjæraasen, Jon Egil, Karlsen, Ørjan, Løkkeborg, Svein, Mayer, Ian, Michalsen, Kathrine, Nilsen, Trygve, Fernö, Anders   +7 more
openaire   +2 more sources

Depth and season‐related variability in fatty acid composition and lipid nutritional quality indices of farmed Mytilus galloprovincialis

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Lipid quality is one of the most important indicators of the nutritional value of farmed mussels. In open‐coastal environments, factors such as cultivation depth and seasonal changes affect lipid dynamics, but their combined effects on lipid quality remain unclear.
Meryem Yeşim Çelik, Bayram Köstekli, Gülşen Uzun Gören, Zeynep Hasançavuşoğlu, Mümin Metehan Kılıç, Alihan Bülbül, Beyza Dündar   +6 more
wiley   +1 more source

Herring (Clupea harengus L.) spawning and spawning ground characteristics in the Baltic Sea

Fisheries Research, 1989
Abstract An investigation of Baltic herring spawning grounds using SCUBA divers was carried out in 1982 in the western central Baltic Sea. Characteristics of the 1982 spawning are described and compared with those of an earlier study in the same area as well as with existing data from other parts of the Baltic, and from the Atlantic and Pacific areas.
openaire   +1 more source

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Spawning water bodies and their role in conservation of rare amphibian species in the foothills of the Republic of Dagestan (Russia)

Nature Conservation Research: Заповедная наука, 2018
Environmental conditions in spawning waters are determined by a variety of abiotic and biotic factors. They are the most significant and therefore limiting in the selection of breeding sites and spawning grounds for amphibians.
Azim D. Askenderov, Lyudmila F. Mazanaeva, Roman A. Mikhaylov, Alexander I. Fayzulin   +3 more
doaj   +1 more source

Ion Activation Methods for Top‐Down Proteomics

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Mass spectrometry (MS) has emerged as a premier method used to characterize the sequences of proteins. Top‐down proteomics aims to capture the multiple sources of structural diversity reflected in proteins, such as those that arise from alternative RNA splicing events or the addition of post‐translational modifications. Tandem MS (i.e., MS/MS)
Jada N. Walker, Jennifer S. Brodbelt
wiley   +1 more source