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苹果树喷钙保的增产提质效果
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作者 张乐森 《落叶果树》 2007年第6期54-54,共1页
关键词 增产提质 苹果树 钙保 可溶性固形物含量 苦痘病 耐贮性 氨基酸
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苹果树喷施钙保效果初报
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作者 张乐森 《山西果树》 2008年第2期43-44,共2页
关键词 红富士苹果树 叶面喷施 钙保 田间试验 大面积推广 科学依据 叶面肥 惠民县
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童慈钙保质量标准的研究
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作者 罗远秀 《广西医学》 CAS 1999年第3期406-408,共3页
采用薄层色谱法对童慈钙保中的黄芪和甘草进行了定性鉴别,并应用络合滴定法对总钙量进行了测定。结果:回收率为100.3%,RSD=0.35%(n=10)。该方法简便,可靠,重现性好。
关键词 童慈钙保 黄芪 甘草 EDTA络合滴定 薄层鉴别
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辣椒施用钙保试验
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《上海蔬菜》 2003年第6期63-64,共2页
关键词 辣椒 钙保试验 叶面喷施 生长 产量
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辣椒喷施钙保试验
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《上海蔬菜》 2003年第5期63-64,共2页
关键词 辣椒 钙保 喷施 产量
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钙保叶面喷施西瓜试验
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《上海蔬菜》 2003年第5期64-65,共2页
关键词 钙保 叶面喷施 西瓜 产量
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130:86115d 在各种溶液中磷酸二钙保温后转为磷灰石沉淀——磷酸盐陶瓷:晶种体和垩白对它的影响
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作者 华小西 付玉信 《磷酸盐工业》 2005年第1期55-55,共1页
本文作者用保温设备研究了由羟基磷灰石(HA)和β-磷酸三钙(β-TCP)在不同溶液中,当与生物材料相接触时磷酸钙盐的溶解——沉淀过程。这不同的溶解有离子与体液(SBF)而不含垩白,或者离子与体液兼含多种垩白,和大部分个体(例如纤维垩白... 本文作者用保温设备研究了由羟基磷灰石(HA)和β-磷酸三钙(β-TCP)在不同溶液中,当与生物材料相接触时磷酸钙盐的溶解——沉淀过程。这不同的溶解有离子与体液(SBF)而不含垩白,或者离子与体液兼含多种垩白,和大部分个体(例如纤维垩白,Vifronecfin,白垩白和聚L-谷氨酸)。透射电子显微镜分析技术揭示,磷灰石沉淀的微晶在陶瓷晶体周围出现是次级核生成的结果, 展开更多
关键词 磷酸盐陶瓷 晶种 磷酸二 溶液 L-谷氨酸 磷酸 溶解 垩白 钙保
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飞灰水洗预处理强化保钙技术研究 被引量:2
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作者 刘磊 《中国水泥》 CAS 2019年第4期84-87,共4页
飞灰产生于生活垃圾焚烧过程,飞灰中含有重金属和难降解的有机物,处置不当会产生严重的环境问题。飞灰作为原料烧制水泥熟料,可以减少其对环境的二次污染,是实现飞灰资源化利用的一条有效途径。但是飞灰中较高的氯含量,会对水泥生产过... 飞灰产生于生活垃圾焚烧过程,飞灰中含有重金属和难降解的有机物,处置不当会产生严重的环境问题。飞灰作为原料烧制水泥熟料,可以减少其对环境的二次污染,是实现飞灰资源化利用的一条有效途径。但是飞灰中较高的氯含量,会对水泥生产过程产生不利影响,需要进行水洗预处理。当100g飞灰进行水洗时,先加入10g氢氧化钠,钙的洗脱量可以降低46%,再通入30L二氧化碳后,钙的洗脱量最终降低60%,同时水洗液pH降至8.53。二氧化碳强化了氢氧化钠的保钙作用,调节了水洗液的pH值。因此,二氧化碳与氢氧化钠联合使用,是较为适宜和经济的保钙方法。 展开更多
关键词 飞灰 水洗 水泥窑协同处置
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钙对家禽生产的重要影响及应用 被引量:8
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作者 余定棣 敖礼林 《中国家禽》 北大核心 2006年第3期26-26,28,共2页
关键词 家禽生产 钙保 应用 羟磷灰石 收缩活动 矿物质饲料 无机物质 比例关系 胶原纤维 磷酸氢
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钙在家禽生产中的应用 被引量:2
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作者 余定棣 敖礼林 《畜禽业》 2005年第12期13-13,共1页
关键词 家禽生产 钙保 应用 羟磷灰石 收缩活动 蛋壳形成 无机物质 比例关系 胶原纤维 磷酸氢
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钙对家禽生产的重要影响及应用 被引量:1
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作者 余定棣 敖礼林 《养殖与饲料(饲料世界)》 2006年第6期7-8,共2页
关键词 家禽生产 钙保 矿物质饲料 羟磷灰石 收缩活动 蛋壳形成 无机物质 比例关系 胶原纤维
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也谈钙对家禽生产的重要影响
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作者 余定棣 敖礼林 《江西畜牧兽医杂志》 2006年第2期14-14,共1页
关键词 家禽生产 钙保 矿物质饲料 蛋壳形成 收缩活动 无机物质 比例关系 凝固过程 酸碱平衡 调节作用
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Existence of Extracellular Calmodulin in the Lower Epidermis of the Leaves of Vicia faba and Its Role in Regulating Stomatal Movements
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作者 陈玉玲 张学琴 +1 位作者 陈珈 王学臣 《Acta Botanica Sinica》 CSCD 2003年第1期40-46,共7页
As a possible peptide primary messenger, extracellular calmodulin (CaM) may regulate processes such as cell proliferation, pollen germination and expression of some genes. Stomata open or close quickly in response to ... As a possible peptide primary messenger, extracellular calmodulin (CaM) may regulate processes such as cell proliferation, pollen germination and expression of some genes. Stomata open or close quickly in response to environmental stimuli. CaM was found to be extracellular both in guard cells of broad bean leaves and in epidermal cells by immuno-electron microscopy and immuno-fluorescence microscopy techniques. Exogenous purified CaM enhanced stomatal closure and inhibited stomatal opening with an optimal concentration of 10(-8) mol/L; CaM antagonist W7-agarose and anti-CaM serum, which were membrane-impermeable macromolecules, inhibited stomatal closure and promoted stomatal opening. All these data showed that endogenous extracellular CaM. of guard cells did promote stomatal closure and inhibit stomatal opening, and could he active only outside the cells. Therefore under natural conditions, the endogenous extracellular CaM of guard cells might regulate stomatal movements as a primary messenger together with other signal molecules, and might be an important linkage between environmental stimuli and cell responses. 展开更多
关键词 extracellular CaM Vicia faba stomatal movement
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Synthesis of Environmentally Friendly Multifunctional Metal (Calcium,Magnesium) Oleate Detergent with Antioxidation Property 被引量:4
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作者 Wang Yonglei Mamat Xamxikamar Eli Wumanjiang 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2011年第3期64-68,共5页
This article covers a method for synthesizing environmentally friendly multifunctional metal (calcium,magnesium) oleate detergents with antioxidation property.These multifunctional metal (calcium,magnesium) oleate det... This article covers a method for synthesizing environmentally friendly multifunctional metal (calcium,magnesium) oleate detergents with antioxidation property.These multifunctional metal (calcium,magnesium) oleate detergents with antioxidation property were synthesized using oil-soluble liquid antioxidants (PPIBP,PPIBTSTBP,and PPIBPDA) as reactive functional materials.These oil-soluble liquid antioxidants have the potential to be used as functional materials for application in synthesizing other kinds of substrate detergents. 展开更多
关键词 OIL-SOLUBLE liquid antioxidant calcium oleate magnesium oleate multifimctional detergent
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Effects and mechanisms of store-operated calcium channel blockade on hepatic ischemia-reperfusion injury in rats 被引量:3
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作者 Li-Jie Pan,Zi-Chao Zhang,Zhen-Ya Zhang,Zong-Ming Zhang,Department of General Surgery,Digestive Medical Center,The First Affiliated Hospital,School of Medicine,Tsinghua University,Beijing 100016,China Wen-Jun Wang,Yue Xu,Xuyue (Beijing) Science and Technology Co.,Ltd.,Haidian District,Beijing 100080,China 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第4期356-367,共12页
AIM:To further investigate the important role of store-operated calcium channels (SOCs) in rat hepatocytes and to explore the effects of SOC blockers on hepatic ischemia-reperfusion injury (HIRI).METHODS:Using freshly... AIM:To further investigate the important role of store-operated calcium channels (SOCs) in rat hepatocytes and to explore the effects of SOC blockers on hepatic ischemia-reperfusion injury (HIRI).METHODS:Using freshly isolated hepatocytes from a rat model of HIRI (and controls),we measured cyto-solic free Ca 2+ concentration (by calcium imaging),net Ca 2+ fluxes (by a non-invasive micro-test technique),the SOC current (I SOC ;by whole-cell patch-clamp record-ing),and taurocholate secretion [by high-performance liquid chromatography and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays].RESULTS:Ca 2+ oscillations and net Ca 2+ fluxes medi-ated by Ca 2+ entry via SOCs were observed in rat he-patocytes.I SOC was significantly higher in HIRI groups than in controls (57.0 ± 7.5 pA vs 31.6 ± 2.7 pA,P <0.05) and was inhibited by La 3+.Taurocholate secretion by hepatocytes into culture supernatant was distinctly lower in HIRI hepatocytes than in controls,an effect reversed by SOC blockers.CONCLUSION:SOCs are pivotal in HIRI.SOC blockers protected against HIRI and assisted the recovery of se-cretory function in hepatocytes.Thus,they are likely to become a novel class of effective drugs for prevention or therapy of HIRI patients in the future. 展开更多
关键词 HEPATOCYTE Hepatic ischemia-reperfusion injury Store-operated calcium channel Non-invasive micro-test technique
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Influence of Calcium Sources and Concentration on the Storage Performance of Strawberry Fruit
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作者 Ijaz Akhtar Abdur Rab 《Journal of Agricultural Science and Technology(B)》 2014年第8期661-673,共13页
Chemical application after harvest is an important method to preserve strawberry fruit quality and extend shelf life. The strawberry fruits harvested at red stage were treated with three different sources of calcium, ... Chemical application after harvest is an important method to preserve strawberry fruit quality and extend shelf life. The strawberry fruits harvested at red stage were treated with three different sources of calcium, i.e., calcium nitrate, calcium gluconate and calcium chloride at calcium concentration of 0% (distilled water), 0.5%, 1.0% and 1.5%. The strawberry fruits were dipped for 30 s. The calcium sources, calcium concentration and the interaction of calcium sources and calcium concentration significantly affected the storage performance of strawberry fruits. All the three sources and concentrations were effective in decreasing the storage associated changes, i.e., weight loss, decline in marketable fruits, loss of organoleptic quality, increase in total soluble solids (TSS), decline in reducing sugars, total sugars, acidity and increase in sugar/acid ratio in strawberry fruit, thus extending the shelf life. Calcium gluconate at 1.5% calcium concentration was more effective. Treatment of strawberry fruit with 1.5% calcium from calcium gluconate source resulted in the highest number of marketable fruit (100%), extended shelf life (10 d), and total soluble solid (7.80%) with the minimum weight loss (5.45%). Calcium dips result in higher calcium concentration in strawberry fruits, which delays ripening in fruits by maintaining the structure and function of cell walls and membranes. It can be concluded that calcium gluconate at 1.5% concentration is an effective calcium treatment to retain the quality and extend the shelf life of strawberry fruit. 展开更多
关键词 CALCIUM CONCENTRATIONS FRUIT PERISHABLE SALTS sources storage strawberry.
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厨房中“保钙”技巧
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作者 沈言 《社区》 2003年第10期48-48,共1页
烹调方法中,“保钙”的菜肴搭配技巧,是荤素混食、豆谷混食。在烹饪时,要尽量除去影响钙吸收利用的因素,以保存更多的钙。 (1)烹调荤菜时应当常用醋。糖醋鱼、糖醋排骨等都是最利于钙吸收的菜肴。醋是酸味食品,不仅可以除去异味,还能使... 烹调方法中,“保钙”的菜肴搭配技巧,是荤素混食、豆谷混食。在烹饪时,要尽量除去影响钙吸收利用的因素,以保存更多的钙。 (1)烹调荤菜时应当常用醋。糖醋鱼、糖醋排骨等都是最利于钙吸收的菜肴。醋是酸味食品,不仅可以除去异味,还能使鱼骨。 展开更多
关键词 烹调方法 ”技巧 菜肴搭配技巧 生物利用率
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Liraglutide directly protects cardiomyocytes against reperfusion injury possibly via modulation of intracellular calcium homeostasis 被引量:8
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作者 Shun-Ying HU Ying ZHANG +2 位作者 Ping-Jun ZHU Hao ZHOU Yun-Dai CHEN 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2017年第1期57-66,共10页
Background Liraglutide is glucagon-like peptide-1 receptor agonist for treating patients with type 2 diabetes mellitus. Our previous studies have demonstrated that liraglutide protects cardiac function through improvi... Background Liraglutide is glucagon-like peptide-1 receptor agonist for treating patients with type 2 diabetes mellitus. Our previous studies have demonstrated that liraglutide protects cardiac function through improving endothelial function in patients with acute myocardial infarction undergoing percutaneous coronary intervention. The present study will investigate whether liraglntide can perform direct protective effects on cardiomyocytes against reperfusion injury. Methods In vitro experiments were performed using H9C2 cells and neonatal rat ventricular cadiomyocytes undergoing simulative hypoxia/reoxygenation (H/R) induction. Cardiomyocytes apoptosis was detected by fluorescence TUNEL. Mitochondrial membrane potential (AWm) and intracellular reactive oxygen species (ROS) was assessed by JC-1 and DHE, respectively. Fura-2/AM was used to measure intracellular Ca2+ concentration and calcium transient. Immtmofluorescence staining was used to assess the expression level of sarcoplasmic reticulum Ca2+-ATPase (SERCA2a). In vivo experiments, myocardial apoptosis and expression of SERCA2a were detected by colorimetric TUNEL and by immunofluorescence staining, respectively. Results In vitro liraglutide inhibited cardiomyotes apoptosis against H/R. △mψ of cardiomyocytes was higher in liraglntide group than H/R group. H/R increased ROS production in H9C2 cells which was attenuated by liraglutide. Liraglutide significantly lowered Ca2+ overload and improved calcium transient compared with H/R group, lmmunofluorescence staining results showed liraglutide promoted SERCA2a expression which was decreased in H/R group. In ischemia/reperfusion rat hearts, apoptosis was significantly attenuated and SERCA2a expression was increased by liraglutide compared with H/R group. Conclusions Liraglutide can directly protect cardiomyocytes against reperfusion injury which is possibly through modulation of intracellular calcium homeostasis. 展开更多
关键词 Calcium overload CARDIOMYOCYTE LIRAGLUTIDE Reperfusion injury Sarcoplasmic reticulum Ca2+-ATPase
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你需要补钙吗?
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作者 高山红 王怀良 《家庭用药》 2001年第1期46-46,共1页
近几年掀起了一股补钙热潮,市场上各种各样的含钙保健品层出不穷,不论是老年、中年、儿童和幼儿统统补钙。甚至连风湿性关节痛和脑血栓后遗症的腿脚不便也用补钙来治疗。看来,一些人对补钙的认识存在误区。
关键词 治疗 脑血栓后遗症 老年 风湿性关节痛 中年 儿童 钙保 健品
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The mechanisms of brain ischemic insult and potential protective interventions 被引量:3
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作者 郭朝晖 李峰 王维治 《Neuroscience Bulletin》 SCIE CAS CSCD 2009年第3期139-152,共14页
The mechanisms of brain ischemic insult include glutamate excitoxicity, calcium toxicity, free radicals, nitric oxide, inflammatory reactions, as well as dysfunctions of endoplasmic reticulum and mitochondrion. These ... The mechanisms of brain ischemic insult include glutamate excitoxicity, calcium toxicity, free radicals, nitric oxide, inflammatory reactions, as well as dysfunctions of endoplasmic reticulum and mitochondrion. These injury cascades are interconnected in complex ways, thus it is hard to compare their pathogenic importances in ischemia models. And the research in cellular and molecular pathways has spurred the studies in potential neuroprotections mainly in pharmacological fields, such as anti-excitotoxic treatment, calcium-channel antagonism, approaches for inhibition of oxidation, inflammation and apoptosis, etc. Besides, other protective interventions including thrombolysis, arteriogenesis, regeneration therapy, and ischemia preconditioning or postconditioning, are also under investigations. Despite the present difficulties, we are quite optimistic towards future clinical applications of neuroprotective agents, by optimizing experimental approaches and clinical trials. 展开更多
关键词 brain ischemia glutamate receptors calcium toxicity endoplasmic reticulum stress NEUROPROTECTION
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