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Early Breeding Conditions Followed by Reduced Breeding Success Despite Timely Arrival in an Alpine Migratory Songbird

open access: yesFrontiers in Ecology and Evolution, 2021
Timing reproduction to coincide with optimal environmental conditions is key for many organisms living in seasonal habitats. Advance in the onset of spring is a particular challenge to migratory birds that must time their arrival without knowing the ...
Martha Maria Sander   +7 more
doaj   +1 more source

Faire du sur-place sans jamais pouvoir prendre place : l’interminable arrivée de jeunes maghrébins sans-papiers à Genève

open access: yesRevue Européenne des Migrations Internationales, 2023
This article focuses on the experience of young North Africans newcomers in Geneva. Precarised by their wandering and lacking legal status, they find in Geneva a reception infrastructure that allows them to eat and sleep in warm place.
Sahar Fneich   +2 more
doaj   +1 more source

Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia

open access: yesFrontiers in Marine Science, 2022
Migratory species undertake seasonal, long-distance travel between feeding and breeding grounds, and time their arrivals with high-quality resources. The Breeding Stock D population of humpback whales (Megaptera novaeangliae) migrates from Antarctic to ...
Corinna Gosby   +4 more
doaj   +1 more source

A Methodology for Applying Skew in an Automotive Interior Permanent Magnet Rotor for Robust Electromagnetic and Noise, Vibration and Harshness Performance

open access: yesWorld Electric Vehicle Journal, 2023
Interior permanent magnet (IPM) motors in traction applications often employ discrete rotor skewing constructions to reduce torsional excitations and back-EMF harmonics.
Thomas Cawkwell   +4 more
doaj   +1 more source

ANALISIS KESTABILAN MODEL P REY − P REDAT OR HOLLING TIPE III

open access: yesJurnal Matematika UNAND, 2021
Model matematika yang merepresentasikan interaksi antara prey (mangsa) dan prey (pemangsa) dikenal dengan model prey-predator. Penelitian ini membahas dinamika model prey-predator yang memuat fungsi respon Holling tipe III, dimana tipe predator yang ...
HAZISYAH HAZISYAH   +2 more
doaj   +1 more source

Arrival brokers as a key component of the arrival infrastructure: how established migrants support newcomers [PDF]

open access: yesGeographica Helvetica, 2023
In recent years, numerous studies have stressed the importance of established migrants helping newcomers access settlement information. This article focuses on the everyday practices of these so-called “arrival brokers” in supporting newcomers in their ...
N. Hans
doaj   +1 more source

A FRACTIONAL DIFFERENTIAL EQUATION MODEL FOR THE SPREAD OF POTATO LEAF ROLL VIRUS (PLRV) ON POTATOES

open access: yesBarekeng, 2023
Potatoes infected with the PLRV virus will experience a decrease in production up to 90%. In this paper, The PLRV distribution fractional differential equation model with potato and vector populations is reformulated by adding one new parameter, namely ...
Prisca Jasmine   +2 more
doaj   +1 more source

DINAMIKA MODEL SUSCEPTIBLE INFECTED RECOVERED (SIR) DENGAN STRATEGI VAKSINASI

open access: yesJurnal Matematika UNAND, 2021
Vaksinasi merupakan salah satu cara untuk mencegah sekaligus mengendalikan penyebaran penyakit menular. Penelitian ini membahas salah satu model penyebaran penyakit menular, yaitu model Susceptible Infected Recovered (SIR).
NANDA MUTIA UTAMA   +2 more
doaj   +1 more source

VARIASI POLA SIMETRI ROTASI 90 DERAJAT DARI SIMULASI SISTEM DINAMIK DENGAN TIGA TES KONVERGENSI

open access: yesJurnal Lebesgue, 2023
This article reviews the  symmetry pattern which has  rotational symmetry and translational symmetry along the -axis and -axis. The  symmetry pattern is generated through the implementation of Matlab application using discrete dynamical system ...
Kintan Febri Cania   +2 more
doaj   +1 more source

DYNAMICS OF THE RUMOR SPREADING MODEL OF INDONESIA TWITTER CASE

open access: yesBarekeng, 2022
The study of the spreading of a rumor is significantly important to obtain scientific information and better strategies in reducing its negative impact.
Arrival Rince Putri   +2 more
doaj   +1 more source

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