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Heavy Quarks Production in Hadronic Processes: Qualitative Study of Higher-Order Fock States

Communications in Theoretical Physics 2009年第4期51卷 717-722页

作者： N.Mebarki k.benhizia Z.Belghobsi D.Bouaziz Laboratoire de Physique Mathematique et Subatomique Mentouri University Département de Physique Universitéde Jijel

The contribution of the two particles Fock states for the production of a heavy quark in proton-pion and photon-pion collisions is studied. It is shown that the effect depends strongly on the produced heavy quark mass... 详细信息

关键词： jets in large Q2 scattering higher twist effect heavy quarks

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Study of Variation in Phosphocalcic Metabolism during Pregnancy and Postpartum in the Holstein Cow of Constantine Region

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Journal of Pharmacy and Pharmacology 2017年第8期5卷 526-530页

作者： Selma benhizia Mohamed Amir Boudhene Sara Benayache Nadjoua Arzour Abdeslam Mekroud Laboratoire de recherche de pathologies animales developpement des Olevages et surveillance de la chaine alimentaire desdenr~es animales ou d'origine animale lnstitut des sciences vOt~rinaires route de Guelma el-khroub. Constantine 05. 25000Algeria. Laboratoire GSPA Institut des sciences veterinaires route de Guelma el-khroub Constantine 05. 25000 Algeria

Pregnancy, parturition, and lactation represent physiological changes of organism, which activates adaptation mechanismsdedicated to maintain homeostasis during peripartum period. Despite of the appropriate input of calcium and phosphorus, thehomeostasis of phosphocalcic metabolism is sometimes faulty, in particular among animals with high production potential. The aim ofthis study is to define usual values of calcium and phosphorus during pregnancy and postpartum period. This paraclinic tool will serveto a good interpretation when used by veterinarians. A second goal is to study the influence of physiological stage on phosphocalcicmetabolism in milch cow. The hereby study was conducted on 17 Prim＇ Holsteins cow breed from 3 to 5 years old, clinically healthy,multiparous and derived from two dairy farms located in the wilaya of Constantine. Blood samples were taken from the jugular veinusing dry tubes at different physiological stages （early gestation, mid gestation, late gestation, pre-partum, one day after parturition, andone month postpartum）. All of the samples correctly identified were transported to a specialized laboratory where specific kits wereused. Blood calcium and phosphorus levels have significantly varied depending on physiological stage （p 〈 0.01）. They showed a highpre-partum variation, with a rate of 94.71 mg/mL and 61.99 mg/mL, respectively. These results can be used as means of follow-upreproduction for a better management of dairy fanning.

关键词： Calcium Blood level, phosphorus blood level, milch cow, gestation, postpartum.

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