Sperm acquire the ability to fertilize in a process called capacitation and undergo hyperactivation, change motility pattern, which depends on Ca2+ transport by CatSper channels. is essential for fertilization it subjected complex regulation that not fully understood. Here, we report similar CatSper, Cdc42 distribution principal piece confined four linear domains this localization disrupted Cat...

Abstract Several studies assessed the impact of inorganic P in fertilizing oligotrophic areas, however, importance organic such fertilization processes received far less attention. In this study, amount and origin delivered to eastern Mediterranean Sea were characterized atmospheric particles using positive matrix factorization model (PMF). Phospholipids together with other chemical compounds (...

Deciding upon a cost effective and sustainable method to address soil pollution is a challenge for many remedial project managers. High pressure to quickly achieve cleanup goals pushes for energy-intensive remedies that rapidly address the contaminants of concern with established technologies, often leaving little room for research and development especially for slower treatment technologies, s...

This article discusses how to deal with secrecy and limited access in ethnographically inspired research of security fields. Drawing inspiration from recent debates about Critical Security Research Franz Kafka’s The Castle, we propose treat limitations the encounter as methodological tools that provide insights into social relations power structures We develop argument two steps. First, argue f...

This research aimed to know the effect of quail manure on an abundance Daphnia magna. The method for D. magna was a Completely Randomized Design (CRD) with four settings, each repeated times, namely use P0 (Control without fertilizer), P1 (Quail fertilize 1 g/L), P2 3 P3 5 g/L). cultured 15 days in container volume liters. updated parameters were magna, mortality and water quality. results anal...

Objective: The main purpose of this research is review of principles, concepts, problems and solutions of soil ethic. Methods: In this research by descriptive method and Delphi technique was used for identifying soil ethical concepts, soil ethical principles, problems and difficulties of soil ethics in Iran and al around the world and suggestions for improvement of soil ethics in Iran. The popu...

  The main purpose of this research is review of principles, concepts, problems and solutions of soil ethic. In this research by descriptive method and Delphi technique was used for identifying soil ethical concepts, soil ethical principles, problems and difficulties of soil ethics in Iran and al around the world and suggestions for improvement of soil ethics in Iran. The population of this re...

Abstract A large amount of dust from the Sahara reaches Amazon Basin, as observed with satellite imagery. This is thought to carry micronutrients that could help fertilize rainforest. However, considering different atmospheric transport conditions, aridity levels in South America and Africa active volcanism, it not clear if same pathways for have occurred throughout Holocene. Here we present an...

Bull fertility may be defined as the process by which spermatozoa fertilize and activate the ovum and then support embryonic development. Bull fertility is a complex trait having relatively low heritability and plays a vital role for efficient production and reproduction of bovine. Various mechanisms involved in regulating bull fertility associated phenotype and reliable biomarkers are poorly d...