Results 41 to 50 of about 69,556 (167)
Evolution of sexual systems and regressive evolution in Riccia
New Phytologist, Volume 246, Issue 2, Page 769-784, April 2025.Summary The genus Riccia is the most speciose of the Marchantiopsida, the complex thalloid liverworts. In contrast to the predicted ancestral liverwort and the majority of extant liverworts that are dioicous, most Riccia species are monoicous. Both the gametophyte and the sporophyte generations have undergone regressive evolution in Riccia, with the ...
Jonathan Levins +13 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 目的研究脯氨酸丰富的肌醇多磷酸5-磷酸酶（PIPP）在组氨酸557位点突变为丙氨酸时PIPPH557A对小鼠受精卵卵裂的调节作用。方法将HA-PIPPH557A重组质粒转染到小鼠受精卵中,用免疫荧光染色法检测HA-PIPPH557A对小鼠受精卵卵裂的影响。然后使用相差显微镜观察并计数HA-PIPPH557A对受精卵卵裂率的影响。结果 HA-PIPPH557A在小鼠受精卵的有丝分裂过程中对卵裂的调节与PIPP的作用相反。并且他们之间的比较具有显著意义 ...
邓欣 +4 more
doaj
, 2016 It has been the general practice to employ culture methods in discerning whether Ascaris eggs are alive or dead. Although culture methods are most reliable, they are not without shortcomings- -the time required in going through the procedures is very ...
Amit S. Dhamoon (2827073) +3 more
core +3 more sources
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 3, Page 372-383, March 2025.ABSTRACT Objective To assess whether premenopausal women diagnosed with deep or ovarian endometriosis on transvaginal sonography (TVS) were more likely to suffer from dyspareunia and pelvic pain symptoms, and have a lower quality of life, compared to women without sonographically diagnosed deep or ovarian endometriosis.
P. Chaggar +5 more
wiley +1 more source
野生动物学报, 2012 斑鳖目前仅在中国和越南的动物园中有4只存活个体,为了拯救这一物种,中国的苏州动物园和长沙动物园开展了斑鳖联合繁育项目。在2008～2011年对斑鳖的产卵时间、产卵窝数、产卵数量和卵的重量、直径等进行了测量。结果表明,雌性斑鳖在夜间产卵,有护卵行为。每年可产卵2～4窝,首次产卵在5月底或6月中旬,最晚在7月中旬结束。产卵间隔变化较大,最短的为12 d,最长的达到36 d,平均18.4±8.3 d。每窝产卵数45～70枚,平均为60.3±7.5枚,年产卵总数在100～200枚之间,年度之间波动很大,在1 ...
陈大庆 +5 more
doaj
Animal Experiment on Functional Features of Eggs Stated to be Hypoallergenic for People with Food Allergies [PDF]
, 2009 Functional features concerned with low proallergic natures were examined using an allergy-inducible rat strain (Brown Norway rat; BN rat) on hen's eggs which have been empirically mentioned as hypoallergenic for patients suffering from food allergies ...
Abe, Asaki +3 more
core
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 3, Page 295-302, March 2025.ABSTRACT Objective Although artificial intelligence (AI) is increasingly being applied to ultrasound imaging in gynecology, efforts to synthesize the available evidence have been inadequate. The aim of this systematic review was to summarize and evaluate the literature on the role of AI applied to ultrasound imaging in benign gynecological disorders ...
F. Moro +8 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2014 目的研究人组织激肽释放酶基因6（KLK6）mRNA和蛋白在卵巢肿瘤组织中的表达水平,探讨其在卵巢恶性肿瘤中的作用机制。方法应用RT-PCR和免疫组化SP法分别检测在正常的卵巢组织、卵巢的良性肿瘤、卵巢的交界性肿瘤及卵巢的恶性肿瘤组织中KLK6的mRNA表达及蛋白的表达,探讨该基因的表达与卵巢恶性肿瘤患者的临床病理特征关系。结果本研究显示,在卵巢癌组织中,KLK6mRNA的表达水平与正常卵巢组织相比,显著增高;卵巢癌组织中KLK6蛋白的阳性表达率为69.4%,与正常卵巢组织（13.3%）、良性卵巢肿瘤 ...
成志强 +6 more
doaj
Tributyltin and bisphenol A induce polycystic ovarian syndrome and its mechanisms involved [PDF]
, 2015 多囊卵巢综合征（polycysticovariansyndrome,PCOS）是以稀发排卵或无排卵、高雄激素或胰岛素抵抗、多囊卵巢为特征的内分泌紊乱的症候群，复杂且具有异质性，是婚育年龄妇女中最常见的内分泌紊乱疾病。PCOS的病因较为复杂，已有研究证明类雌激素化合物双酚A暴露（bisphenolA,BPA）与PCOS的发病有关，说明环境中的内分泌干扰物与PCOS发病存在一定的联系。 本研究以大鼠为实验动物模型，以三丁基锡（tributyltin,TBT）作为类雄激素化合物的典型代表，探究TBT（10ng/
杨志兵
core
New Phytologist, Volume 245, Issue 5, Page 2004-2015, March 2025.Summary The evolution of green plants from aquatic to terrestrial environments is thought to have been facilitated by the acquisition of gametangia, specialized multicellular organs housing gametes. Antheridia and archegonia, responsible for producing and protecting sperm and egg cells, undergo formative cell divisions to produce a cell to ...
Yuta Horiuchi +11 more
wiley +1 more source