Results 41 to 50 of about 111,668 (272)

Anormalidades espermáticas de Piaractus mesopotamicus após descongelamento utilizando diferentes metodologias

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2012
Avaliou-se a influência de crioprotetores, temperatura e tempo de descongelamento sobre as anormalidades espermáticas de pacu (Piaractus mesopotamicus).
M.S. Paulino   +3 more
doaj   +1 more source

Arsenic, Antimony, Chromium, and Thallium Speciation in Water and Sediment Samples with the LC‐ICP‐MS Technique

open access: yesInternational Journal of Analytical Chemistry, Volume 2015, Issue 1, 2015., 2015
Chemical speciation is a very important subject in the environmental protection, toxicology, and chemical analytics due to the fact that toxicity, availability, and reactivity of trace elements depend on the chemical forms in which these elements occur.
Magdalena Jabłońska-Czapla   +1 more
wiley   +1 more source

Fraksi Heksan Ekstrak Biji Pepaya Muda Dapat Menghambat Proses Spermatogenesis Mencit Jantan Lebih Besar Daripada Fraksi Metanol Ekstrak Biji Papaya Muda [PDF]

open access: yes, 2008
Fraksi ekstrak heksan mengandung dua golongan zat aktif yang bersifat antifertilitas yaitu golongan steroid dan golongan triterpenoid yang diperkirakan bersifat antifertilitas, walupun mekanisme kerjanya belum jelas.
Satriyasa, B. K. (Bagus)
core  

Scientific opinion on the exposure of children and adolescents in the Republic of Croatia to acrylamide from food

open access: yesFood Risk Assess Europe, Volume 4, Issue 1, January 2026.
Summary Acrylamide is a natural by‐product of the reaction that occurs during the baking or frying food at temperatures above 120°C in industry and in households. The main mechanism of acrylamide formation in food is the Maillard reaction, in which the free amino acid asparagine, which is found in many types of cereals and potatoes, reacts with ...
Danijela Stražanac   +6 more
wiley   +1 more source

Feed‐Forward Inhibition of CD73 and Upregulation of Adenosine Deaminase Contribute to the Loss of Adenosine Neuromodulation in Postinflammatory Ileitis

open access: yesMediators of Inflammation, Volume 2014, Issue 1, 2014., 2014
Purinergic signalling is remarkably plastic during gastrointestinal inflammation. Thus, selective drugs targeting the “purinome” may be helpful for inflammatory gastrointestinal diseases. The myenteric neuromuscular transmission of healthy individuals is fine‐tuned and controlled by adenosine acting on A2A excitatory receptors.
Cátia Vieira   +8 more
wiley   +1 more source

Técnica para estudiar las células sanguíneas en Trachemys venusta venusta, Staurotypus triporcatus y Rhinoclemmys areolata

open access: yesEcosistemas y Recursos Agropecuarios
Las tortugas son organismos con alta vulnerabilidad por el impacto en los ecosistemas y falta de conocimiento biológico. Los estudios hematológicos en los quelonios son limitados por la carencia de técnicas-procedimientos específicos; por ello, se ...
Javier Hernández-Guzmán   +5 more
doaj   +1 more source

Pengaruh Variasi Konsentrasi Metanol Terhadap Sifat Permeabilitas Metanol Membran Komposit Kitosan/ Monmorillonit Termodifikasi Silan 10% [PDF]

open access: yes, 2016
Membran komposit yang terdiri dari kitosan sebagai matriks dan monmorillonit sebagai telah berhasil dibuat. Kitosan yang digunakan dalam pembuatan membran memiliki derajat deasetilasi (DD) sebesar 70,225 %. Monmorillonit yang digunakan telah dimodifikasi
Atmaja, L. (Lukman)   +1 more
core  

Scientific opinion on the exposure of children and adolescents in the Republic of Croatia to ochratoxin A (OTA) from food

open access: yesFood Risk Assess Europe, Volume 4, Issue 1, January 2026.
Summary Ochratoxin A (OTA) is a secondary metabolite primarily produced by moulds of the genera Aspergillus and Penicillium. It is most commonly found in foods of plant origin, such as cereals, wine, coffee, spices and various types of fruits and vegetables, green tea, pistachios, figs, raisins, grapes, wine and chestnuts, as well as beer, coffee ...
Sanja Miloš   +5 more
wiley   +1 more source

Exploring the Isomer Dependent SERS Spectra of (diphenylphosphoryl)(pyridin‐2, ‐3, and ‐4‐yl)methanol Adsorbed on Gold Nanocolloids

open access: yesJournal of Spectroscopy, Volume 2014, Issue 1, 2014., 2014
The surface‐enhanced Raman scattering (SERS) spectra of three aminophosphonate derivatives of pyridine: (diphenylphosphoryl)(pyridin‐2‐yl)methanol (α‐Pyr), (diphenylphosphoryl)(pyridin‐3‐yl)methanol (β‐Pyr), and (diphenylphosphoryl)(pyridin‐4‐yl)methanol (γ‐Pyr) were measured after immobilization onto colloidal gold surface.
Ewa Pięta   +6 more
wiley   +1 more source

Chitin Soil Amendment Triggers Systemic Plant Disease Resistance Through Enhanced Pattern‐Triggered Immunity

open access: yesPlant Biotechnology Journal, Volume 23, Issue 11, Page 5032-5044, November 2025.
ABSTRACT Chitin triggers localised and systemic plant immune responses, making it a promising treatment for sustainable disease resistance. However, the precise molecular mechanisms underlying chitin‐induced systemic effects in plants remain unknown. In this study, we investigated the effects of soil amendment with crab chitin flakes (hereafter chitin)
Moffat Makechemu   +8 more
wiley   +1 more source

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