Results 11 to 20 of about 666,775 (168)

Determinants of Muscle and Bone Aging [PDF]

Journal of Cellular Physiology, 2015
Loss of bone and muscle with advancing age represent a huge threat to loss of independence in later life. Osteoporosis represents a major public health problem through its association with fragility fractures, primarily of the hip, spine and distal forearm.
Curtis, Elizabeth M., Litwic, A., Cooper, C., Dennison, E.   +3 more
openaire   +4 more sources

Aging steller sea lions by growth layer groups in teeth

Wildlife Society Bulletin, 2019
Accurate age determination of individuals is crucial in estimating age structure in populations as well as age‐specific rates of reproduction and survival. We examined growth layer groups (GLGs) in the canine, incisor, and postcanine teeth of Steller sea
Takeomi Isono, Yumi Kobayashi, Vladimir N. Burkanov, Orio Yamamura   +3 more
doaj   +1 more source

Mafic-ultramafic intrusions of Matokulma, Palojärvi, and Hongonniittu within the Central Finland Granitoid Complex with special reference to their petrogenesis and ore potential [PDF]

Bulletin of the Geological Society of Finland
We describe three previously unknown or poorly studied mafic-ultramafic intrusions (Matokulma, Palojärvi, Hongonniittu) from the south-central part of the Paleoproterozoic Central Finland Granitoid Complex (CFGC).
Seppo Karvinen, Hannu V. Makkonen, Perttu Mikkola, O. Tapani Rämö, Hannu Huhma, Matti Niskanen   +5 more
doaj   +1 more source

Age-dependance of pteridines in the malaria vector, Anopheles stephensi

Pteridines, 2017
Determining the accurate age of malaria vectors is crucial to measure the risk of malaria transmission. A group of fluorescent chemicals derived from a pyrimidine-pyrazine ring structure known as pteridines from the head, thorax and whole body of adult ...
Edalat Hamideh, Akhoundi Mohammad, Basseri Hamidreza   +2 more
doaj   +1 more source

Sexual maturity of female golden grey mullet, Chelon aurata and leaping mullet, Chelon saliens in the Southwest Caspian Sea using otolith [PDF]

Caspian Journal of Environmental Sciences
Otoliths were used to investigate the first sexual maturity, an important factor for conservation, in females of two economically and ecologically important mullet species, Chelon aurata and Chelon saliens.
Fatemeh Najafi, Ali Bani, Shima Bakhshalizadeh   +2 more
doaj   +1 more source

DeepOtolith v1.0: An Open-Source AI Platform for Automating Fish Age Reading from Otolith or Scale Images

Fishes, 2022
Every year, marine scientists around the world read thousands of otolith or scale images to determine the age structure of commercial fish stocks. This knowledge is important for fisheries and conservation management.
Dimitris V. Politikos, Nikolaos Sykiniotis, Georgios Petasis, Pavlos Dedousis, Alba Ordoñez, Rune Vabø, Aikaterini Anastasopoulou, Endre Moen, Chryssi Mytilineou, Arnt-Børre Salberg, Archontia Chatzispyrou, Ketil Malde   +11 more
doaj   +1 more source

One year study on the reproductive biology, ovary characterization and age of the European sardine (Sardina pilchardus) in the middle-west Adriatic Sea

Frontiers in Marine Science, 2023
The ecological and economic relevance of the European sardine (Sardina pilchardus) in the Adriatic area is well established. High exploitation rates and instability of environmental parameters could potentially impair the reproductive physiology of this ...
Giulia Chemello, Greta Lucia Cerrone, Valentina Tavolazzi, Fortunata Donato, Francesco Tiralongo, Giorgia Gioacchini   +5 more
doaj   +1 more source

Shedding Light on the Protective Regime for Unaccompanied Minors Under the Family Reunification Directive: The Case of A and S

European Papers, 2018
(Series Information) European Papers - A Journal on Law and Integration, 2018 3(3), 1493-1502 | European Forum Insight of 5 November 2018 | (Table of Contents) I. Introduction. - II.
Salvo Nicolosi
doaj   +1 more source

Tracing giants through time: stable isotope insights into the historical ecology of North Atlantic sperm whales (Physeter macrocephalus)

Frontiers in Environmental Archaeology
IntroductionSperm whales (Physeter macrocephalus) are deep-diving apex predators whose offshore ecology limits direct observation. Stable isotope analysis is widely used to infer cetacean diet and habitat use, but its application to archaeological whale ...
Youri van den Hurk, Youri van den Hurk, Bente Philippsen, Martin Seiler, Danielle Buss, Danielle Buss   +5 more
doaj   +1 more source

The Using of Skeletochronology as a Screening Method for Age Determination of Alpine Newts (Mesotriton Alpestris): a Technical Report

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2015
Skeletochronology is a widely used method for age determination in amphibians. This method is based mainly on the histological examination of the finger bones.
Peter Makovický, Oldřich Kopecký, Pavol Makovický, Radek Matlach   +3 more
doaj   +1 more source