Results 61 to 70 of about 656,788 (318)

Pengembangan Video Pembelajaran Kalor untuk Siswa Kelas VII

open access: yesJurnal Inovasi dan Teknologi Pembelajaran, 2019
Abstrak: Tujuan dari pengembangan yaitu menghasilkan produk media video pembelajaran yang valid sebagai sumber belajar yang efektif dalam mata pelajaran IPA materi pokok Kalor kelas VII C.  Penelitian ini menggunakan model pengembangan Sadiman.
Ardiyanti Ulyana   +2 more
doaj   +1 more source

Evolutionary and environmental determinants of heat tolerance and acclimation capacity in herpetofauna

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Exploring heat tolerance and acclimation capacity can provide an effective approach to evaluating species’ sensitivity to extremely high temperatures due to climate warming. Despite some work on amphibian and reptile thermophysiological adaptation, related questions remain. We reviewed the literature to provide a synthesis of worldwide data on
Zijian Sun   +8 more
wiley   +1 more source

El estrés calórico en vacas lecheras [PDF]

open access: yes, 2015
En las vacas lecheras el exceso de calor provoca cuantiosas pérdidas económicas debido a sus consecuencias sobre la producción y la reproducción, derivadas de los efectos negativos que tiene en el metabolismo digestivo, el sistema inmune, el ...
Callejo Ramos, Antonio
core   +1 more source

Entropia segundo Clausius

open access: yesKhronos
Clausius expressou analiticamente os dois primeiros princípios da termodinâmica e introduziu o conceito de entropia. Junto a entropia trabalhou o conceito de desagregação do corpo e a influência do calor no arranjo das partículas no mesmo.
Regina Simplício Carvalho   +2 more
doaj   +1 more source

Estresse Térmico – os efeitos do calor sobre o desempenho físico

open access: yesRevista de Educação Física, 2018
Introdução: A temperatura global vem aumentando ao longo dos anos. Paralelo a isto, vem aumentando cada vez mais o número de praticantes em atividades outdoor.
Danielli Braga de Mello
doaj   +1 more source

Avaliação da Ocorrência de Focos de Calor na região da Estação Ecológica do Taim e Campos Neutrais, Rio Grande do Sul - Brasil

open access: yesAnuário do Instituto de Geociências, 2020
Unidades de Conservacao sao regioes demarcadas com o objetivo de preservar o bioma, tornando-as importantes ferramentas para a mitigacao dos efeitos das mudancas climaticas, em termos do estoque de carbono e da preservacao de recursos hidricos.
Ana Verônica Silva do Nascimento   +3 more
semanticscholar   +1 more source

Melanoma Diagnosis in the Mihm Era—And Beyond

open access: yesJournal of Cutaneous Pathology, Volume 53, Issue 1, Page 16-22, January 2026.
ABSTRACT During the illustrious career of Martin C. Mihm Jr., MD, the diagnosis of melanoma underwent significant changes, to which he made many contributions. In early descriptions, melanomas were fungating tumor masses that were obviously malignant, and highly lethal. In seminal work by Dr. Mihm and his mentor, Wallace H.
David E. Elder
wiley   +1 more source

Eficacia de la esterilización de instrumental endodóncico estandarizado por diversos métodos [PDF]

open access: yes, 2015
En este estudio se han determinado los valores mínimos de la relación tiempo-temperatura eficaces para la esterilización de limas k contaminadas por Bacillus subtilis, por diferentes métodos de esterilización.
Brau Aguadé, Esteban   +3 more
core  

Universal restrictions to the conversion of heat into work derived from the analysis of the Nernst theorem as a uniform limit

open access: yes, 2003
We revisit the relationship between the Nernst theorem and the Kelvin-Planck statement of the second law. We propose that the exchange of entropy uniformly vanishes as the temperature goes to zero. The analysis of this assumption shows that is equivalent
  +27 more
core   +1 more source

Detection of K+ mesons in segmented electromagnetic calorimeters [PDF]

open access: yes, 2009
The combination of the CrystalBall and TAPS electromagnetic calorimeters were installed in the MAMI A2 hall in 2003. Here they are able to detect the reaction products from photo-induced reactions in combination with the Glasgow photon tagger.
D I Glazier   +4 more
core   +1 more source

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