Results 41 to 50 of about 14,319 (293)
Electronic Journal of Differential Equations, 2011 We obtain the existence and multiplicity of positive $T$-periodic solutions for the difference equations $$ Delta x(n)=a(n,x(n))-lambda b(n)f(x(n-au(n))) $$ and $$ Delta x(n)+a(n,x(n))=lambda b(n)f(x(n-au(n))), $$ where $f(cdot)$ may be singular
Yanqiong Lu
doaj
Nonexistence theorems for traversable wormholes
, 2015 Gauss-Bonnet formula is used to derive a new and simple theorem of nonexistence of vacuum static nonsingular Lorentzian wormholes. We also derive simple proofs for the nonexistence of Lorentzian wormhole solutions for some classes of static matter such ...
Saa, A
core +1 more source
The fossil record stays silent: Confusions and conundrums for hominin pelvis evolution
The Anatomical Record, EarlyView.Abstract The evolution of the hominin pelvis is commonly modeled as a series of stages driven largely by the requirements of bipedal locomotion, reproduction, thermoregulation, and pelvic floor muscular support. These patterns are complicated by variation in canal dimensions in relationship with different changes in overall pelvic breadths. To quantify
Helen K. Kurki, Cara M. Wall‐Scheffler
wiley +1 more source
Analiza i Egzystencja, 2016 CAN EXISTENCE BE BETTER OR WORSE THAN NONEXISTENCE? PART I The aim of this paper is to examine whether there is any possibility to compare thevalue of someone’s existence with his nonexistence.
Mirosław Rutkowski
doaj +1 more source
Ilahiyat Studies, 2010 In its beginnings, Sufism was a moral movement concerned with asceticism (zuhd) and poverty (faqr). Later, Sufism's second period, which was called "Sunnī Sufism" with problems arising from a spiritual life of which the theoretical basis is unknown, was again within the limits of a moral content.
openaire +3 more sources
Animal Research and One Health, EarlyView.Antimicrobial resistance (AMR) is an escalating global threat driven by antimicrobial use in aquaculture and livestock. Resistant pathogens and genes can spread across humans, animals, and the environment through interconnected ecosystems. Using a One Health approach, this review emphasizes antimicrobial stewardship, regulatory strengthening, enhanced ...
Mir Mohammad Ali +10 more
wiley +1 more source
Nonexistence of Asymptotic Observables [PDF]
Proceedings of the American Mathematical Society, 1972 Strong asymptotic limits of all Heisenberg observables exist only for trivial Hamiltonians.
openaire +2 more sources
Anatomical Sciences Education, EarlyView.Abstract Evolutionary theory provides a fundamental framework for understanding human anatomy and health. However, evolution acceptance and conceptual understanding are distinct constructs that may not co‐vary. This study aimed to assess (1) evolution acceptance and (2) knowledge of human evolution in health sciences students.
Thomas Colard +4 more
wiley +1 more source
Biological Diversity, EarlyView.Strategies for otter rewilding and conservation in the Kashmir Valley must include protecting and improving otter habitats, Education and awareness to get over harms of myths and strict law enforcement to prevent hunting. ABSTRACT Kashmir Valley is a unique landscape nestled in the northwest Himalaya.
Irfan Khursheed Shah, Sohail Ahmad Wagay
wiley +1 more source
Nonexistence of positive solutions for a nonpositone system in a ball
Electronic Journal of Differential Equations, 2015 In this article, we prove the nonexistence of positive solutions for a nonpositone system in a ball when the nonlinearities may have more than one zero.
Said Hakimi
doaj