Results 51 to 60 of about 2,986,773 (268)

POPULATION STRUCTURE AND EFFECTIVE SIZE OF A LIZARD POPULATION [PDF]

Evolution, 1965
Sewall Wright, R. A. Fisher, and others have shown the influence of population size on the fluctuation in gene frequencies but have disagreed on the explanation for it. The ratio of the effective population number to the actual number is a measure of the extent to which parents make unequal contributions to succeeding generations.
openaire   +2 more sources

AI Integration and Digital Regulation: Impacts on Global Trade in Digital Services

Buletin Ekonomi Moneter dan Perbankan
This study investigates the impact of AI readiness and digital laws on Digitally Deliverable Services (DDS) exports, utilizing a comprehensive dataset that includes developed and developing economies, as well as various global regions.
Srividhya M, RAVI REDDI
doaj   +1 more source

THE RESULTS OF THE STUDY OF THE BROWN BEAR POPULATION IN THE RUSSIAN PART OF THE PASVIK-INARI TRILATERAL PARK ACCORDING TO DNA ANALYSIS AND DATA FROM CAMERA TRAPS

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017
In framework of an international project of brown bear population monitoring, the bear population size and structure were analyzed on the Russian side of the Pasvik-Inari Trilateral Park (Russia, Norway, Finland) in 2015. The paper presents data gathered
Sergey Ogurtsov, Olga Makarova, Natalia Polikarpova, Alexander Kopatz, Hans Geir Eiken, Snorre Hagen   +5 more
doaj   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

On the Choice of the Population Size

, 2004
Evolutionary Algorithms (EAs) are population-based randomized optimizers often solving problems quite successfully. Here, the focus is on the possible effects of changing the parent population size. Therefore, new functions are presented where for a simple mutation-based EA even a decrease of the population size by one leads from an efficient ...
openaire   +2 more sources

Breeding seabirds of the Sicilian islands: distribution and abundance within the Marine Strategy Framework Directive monitoring program

Rivista Italiana di Ornitologia - Research in Ornithology
Four marine bird species breeding in the circum-Sicilian islands were monitored during 2021-2024 with the aim of updating data on distribution, breeding success, and population size for the EU Marine Strategy Directive (MSFD 2008/56/CE).
Pietro Lo Cascio, Bruno Massa, Camillo Antonino Cusimano, Francesco Allegrino, Sara Chiarello, Giacomo Dell’Omo, Antonella Di Gangi, Renzo Ientile, Luana La Fauci, Tommaso La Mantia, Rocco Lo Duca, Carmelo Mustica, Sara Petracchini, Rafael Silveira Bueno, Salvatore Surdo, Francesco Pezzo, Nicola Baccetti   +16 more
doaj   +1 more source

Microhabitats Affect Population Size and Plant Vigor of Three Critically Endangered Endemic Plants in Southern Sinai Mountains, Egypt

Land, 2019
Endemic species on mountains often have narrow altitudinal ranges and are more threatened at the higher altitudes, especially with climate changes. However, plants could use special microhabitats at the mountain tops as proper places for surviving the ...
Amal M. Fakhry, Ali El-Keblawy, Hatem A. Shabana, Ibrahim El Gamal, Amir Shalouf   +4 more
doaj   +1 more source

Genetic mixing for population management: From genetic rescue to provenancing

Evolutionary Applications, 2021
Animal and plant species around the world are being challenged by the deleterious effects of inbreeding, loss of genetic diversity, and maladaptation due to widespread habitat destruction and rapid climate change. In many cases, interventions will likely
Ary A. Hoffmann, Adam D. Miller, Andrew R. Weeks   +2 more
doaj   +1 more source

Emapalumab for Immune Effector Cell‐Associated Hemophagocytic Lymphohistiocytosis‐Like Syndrome Following CD19‐Directed CAR‐T in Two Patients With B‐ALL: Clinical and Biomarker Correlates

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Immune effector cell‐associated hemophagocytic lymphohistiocytosis‐like syndrome (IEC‐HS) is a life‐threatening hyperinflammatory toxicity distinct from cytokine release syndrome (CRS) and neurotoxicity following chimeric antigen receptor T‐cell (CAR‐T) therapy. In a single‐institution retrospective cohort of pediatric and young adult patients
Thomas J. Galletta, Jeremy D. Rubinstein, Christopher E. Dandoy, Ruby Khoury, Angela Faulhaber, Christine L. Phillips, Christa Krupski   +6 more
wiley   +1 more source

Population demography of high arctic caribou on Banks and Melville Islands

Rangifer, 2003
Caribou numbers, Rangifer tarandus pearyi, (excluding calves) on Banks Island were estimated (standard error of the estimate) at 1005 (SE±133) in 1992, 709 (SE±128) in 1994 and 436 (SE±71) in 1998; no paired estimates were different (Ptwo-year-old ...
Nicholas C. Larter, John A. Nagy
doaj   +1 more source