用经皮神经电刺激法联合无菌水皮内注射法对产妇进行分娩镇痛的效果探究

目的:探讨用经皮神经电刺激法联合无菌水皮内水注射法对产妇进行分娩镇痛的效果。方法:选取2017年1月至2019年12月期间在浙江省宁海县妇幼保健院进行分娩的300例产妇作为研究对象。将这些产妇分为对照1组、对照2组和观察组,每组各有100例产妇。在三组产妇分娩期间,采用经皮神经电刺激法对对照1组产妇进行镇痛,采用无菌水皮内水注射法对对照2组产妇进行镇痛,采用经皮神经电刺激法联合无菌水皮内水注射法对观察组产妇进行镇痛。然后比较三组产妇视觉模拟评分法(VAS)的评分、产程的时长、产后出血的发生率、产道撕裂的发生率、进行剖宫产手术的发生率及其新生儿窒息的发生率。结果:观察组产妇第一产程、第二产程、第三产程的时长均短于对照1组产妇和对照2组产妇,P<0.05;其VAS的评分、进行剖宫产手术的发生率均低于对照1组产妇和对照2组产妇,P<0.05。结论:采用经皮神经电刺激法联合无菌水皮内水注射法对产妇进行分娩镇痛的效果较为理想。

水皮·教授·改革

大学教授中出不了受学生喜爱的“水皮”,而水皮也不能当上大学教授的根本原因,在于目前我国高等教育体制面临的“悖论”。面对高教体制的改革已严重滞后于经济体制的改革的事实,社会呼唤第一个敢吃螃蟹且不会出现“消化不良”的高校出笼。

童年有棵神奇的树 第7集 水皮女的苦

缠着水皮女嘀咕了一晚上，原来，她一直小心翼翼、躲躲闪闪，是怕爸妈知道了不让她继续住我家。我就跟她保证，以后再也不咋呼，绝不让爸妈发现她的事。但是她也要保证，哪天，带我真正走一次神。我忽然还有了个极好的主意：“哪天，我们好好坐在课堂上，走神走到外面去玩”

童年有棵神奇的树 第4集 天上掉下个水皮女

阿婆终于有了一口真正的新牙，虽然少了一颗，但是非常整齐；虽然它们太嫩太新鲜，阿婆太老太陈旧，但是一切都成功了，不是吗？

童年有棵神奇的树 第5集 水皮女让人捉摸不透

水皮女凡事熟门熟路，就连老虎钳放在哪里，她都一清二楚。时间久了，倒叫爸妈离不开她了。 阿婆是旧的阿婆，水皮女是新的水皮女，眼睛水灵灵，皮肤光溜溜，说话嫩生生。她把头发辫成两根长辫搭在肩头，让我好羡慕。

水皮:2013股市难得好年份

在谈及2013年中国股市时,水皮颇为乐观,他认为今年的股市是一个难得的好年份。另外,今年的市场氛围会更好。

初夏水皮钓

二十四节气过了立夏，就到了夏天。初夏的江淮地区，气温已经达到30多度，水温也上升到20多度。你看那河、湖、塘里，水色泛绿发浑，水生微生物大量生长繁殖。水中的笮草已经开花结子，它们也在孕育着自己的后代。近几年，我地区不少水域几乎全部成了苲草的天下，密密麻麻，几乎覆盖着整个水域，你想找个脸盆大小甚至碗口大小干净的窝子都办不到。再看那水中的鱼儿，一片片，一群群，

Hydration transformation behaviors of CO_(2) and excellent anti-inflammatory activity on RAW 264.7 cell

Skin care products with carbonic acid(H_(2)CO_(3))have gained extensive attention worldwide.However,the conversion of CO_(2) to H_(2)CO_(3) is not stable,and the mechanism of the effect of H_(2)CO_(3) on skin care has not been clearly proved.The hydration-dissolution behaviors of CO_(2) were investigated under different temperature,pH,and pressure conditions.Moreover,based on the phenomenon of CO_(2) hydration transformation,the inflammatory effect of CO_(2) hydrate on macrophages(RAW 264.7)was investigated.The result shows that the increase in temperature weakened the hydration of CO_(2),and the increase in pH and pressure both promoted the water-phase transformation of CO_(2).When pH<6,CO_(2) reacts with water to generate H_(2)CO_(3).When pH was between 6-7,the prompt solution was a mixture of H_(2)CO_(3) and HCO_(3)^(-).When the pH was between 7-9,they mainly generated HCO_(3)^(-).And when pH>9,CO_(2) solubility mainly converts to CO_(3)^(2-).Besides,CO_(2) can inhibit the secretion of inflammatory factors by RAW 264.7 cells by inhibiting the phosphorylation of the p38 protein.CO_(2) hydrate inhibited the expression of pro-inflammatory factors IL-6,TNF-α,and up-regulated the expression of anti-inflammatory factor IL-10.Furthermore,the anti-inflammatory molecular mechanism of CO_(2) hydration inhibited the MAPK signaling pathway by inhibiting the phosphorylation of p38.The hydration-dissolution behavior of CO_(2) was investigated.This work revealed the anti-inflammatory bioeffect of CO_(2) hydrate,providing a theoretical basis and application support for CO_(2) skin care products.

Morphological and behavioral consequences of recurrent seizures in neo-natal rats are associated with glucocorticoid levels

Objective It is well documented that epilepsy can increase neurogenesis in certain brain regions and cause behavioral alternations in patients and different epileptic animal models. A series of experimental studies have demonstrated that neurogenesis is regulated by various factors including glucocorticoid （CORT）, which can reduce neurogenesis. Most of studies in animal have been focused on adulthood stage, while the effect of recurrent seizures to immature brain in neonatal period has not been well established. This study was designed to investigate how the recurrent seizures occurred in the neonatal period affected the immature brain and how CORT regulated neurogenesis in immature animals. Methods Neonatal rats were subjected to 3 pilocarpine-induced seizures from postnatal day 1 to day 7. Then neurogenesis at different postnatal ages （i.e. P8, P12, P22, P50） was observed. Behavioral performance was tested when the rats were mature （P40）, and plasma CORT levels following recurrent seizures were simultaneously monitored. Results Rats with neonatal seizures had a significant reduction in the number of Bromodeoxyuridine （BrdU） labeled cells in the dentate gyrus compared with the control groups when the animals were euthanized on P8 or P12 （P 〈 0.05）; whereas there was no difference between the two groups on P22. Until P50, rats with neonatal seizures had increased number of BrdU-labeled cells compared with the control group （P 〈 0.05）. In Morris water maze task, pilocarpine-treated rats were significantly slower than the control rats at the first and second day, and there were no differences at other days. In probe trial, there was no significant difference in time spent in the goal quadrant between the two groups. Endocrine studies showed a correla- tion between the number of BrdU positive cells and the CORT level. Sustained increase in circulating CORT levels was observed following neonatal seizures on P8 and P12. Conclusion Neonatal recurrent seizures can biphasely modulate neurogenesis over different time windows with a down-regulation at early time and up-regulation afterwards, cause persistent deficits in cognitive functions of adults, and increase the circulating CORT levels. CORT levels are related with the morphological and behavioral consequences of recurrent seizures.

Properties of Picosecond Fluorescence of Super High-Yield Hybrid Rice

Thylakoid membrane preparations of super high-yield hybrid rice (Oryza sativa L.), Liangyoupeijiu (P9) and Shanyou 63 (SH 63) were used for investigating its spectral and time properties by using picosecond time-resolved fluorescence spectrum measuring system. The thylakoid membrane preparations of P9 and SH 63 were excited by an Ar+ laser with a pulse width of 120 ps, repetition rate of 4 MHz and wavelength of 514 nm. The time constants of the excited energy transfer in these two varieties at flowering stage and grain filling stage were calculated from the experimental data. Based on the comparative studies of the time and spectral properties of the excited fluorescence in these ultrafast dynamic experiments the following was found: at both the flowering stage and grain filling stage, the speed of the excitation energy transfer, in photosystem was faster than that in photosystem II in P9 variety; and the speed of the excitation energy transfer at grain filling stage was faster than those at flowering stage for both rice varieties; the experiments also implied that the components and assembly of pigments in SH 63, but not in P9, changed during the process from flowering stage to grain filling stage for in these two rice varieties.

Isolation, Cuture and Biological Characteristic Analysis of Stromal and Glandular Epithelial Cells of Buffalo (Bubalus bubalis) Endometrium

[Objective] The experiment aimed to set up a method for isolating and culturing endometrial stromal cells (BESC) and endometrial glandular epithelial cells(BEGEC) of buffalo as well as laid foundation for studying biological mechanism of embryo implantation and uterine diseases. [Method] The enzymatic digestion method, scraping method, serial filtration and differential velocity adherent technique were used to isolate BESC and BEGEC, then immunocytochemical method and TRYPAN-Blue assay were used to determine the purity and survival rate of isolated cells. [Result] The BESC and BEGEC were successfully isolated and cultured while immunocytochemical method and cell count method demonstrated that the purity was over 90%. The result of TRYPAN-Blue assay shown that survival rate of BESC and BEGEC was 91% and 78% respectively. [Conclusion] The enzymatic digestion method, scraping method, serial filtration and differential velocity adherent technique could isolate BESC and BEGEC with high purity.

搏傻

股市上谁比谁傻?谁也不比谁傻,谁都认为自己比别人聪明,既然都是聪明人,那么谁又愿意做赔钱的傻子呢?

农业部乡镇企业局为乡镇企业东西合作推荐项目

【正】 98-005脂肪酰胺系列表面活性剂该项目为国家科委科技成果推广项目,该产品是一类性能优良、品种繁多的非离子表面活性剂、具有钙皂分散力强、脱脂性温和、低温洗涤性能好、耐酸碱等优点,磷酸酯化后在弱酸性情况下稳定,且表面活性高,硫酸化后与皮肤的相容性比其它阳离子表面活性剂要好,且泡沫力强。

轻纺

【正】 黄酒活性干酵母 黄酒活性干酵母是采用优良的黄酒生产酵母菌种,采用国际90年代最先进的活性干酵母生产线生产的。它具有适应温度范围宽(20～40℃)、耐乙醇(15％V/V)、耐酸(pH2.5)、耐贮存等特点,保质期一年以上。

Physiological Changes during the Process of Pericarp Browning in the Postharvest Litchi

[Objective] Pericarp browning in the postharvest litchi significantly reduced its commercial value and limited the expanding of litchi markets. Physiological changes during the process of pericarp browning were determined in order to identify the underlying mechanisms. [Method] Matured Feizixiao fruits were stored at 25 ℃ and 70%±5% relative humidity. The physiological changes happened in pericarp during storage were tested at an 8-hour interval. [Result] The fruit of Feizixiao (Litchi chinensis Sonn. cv Feizixiao) turned completely brown within 72 h after being harvested under the experimental conditions. Sharp increase of the browning index occurred from 48 to 64 hours after harvest (HAH). With the browning of pericarp,water content of the whole fruit and pericarp decreased continuingly. In contrast,there were no significant changes in the water content of pulp during the same period. MDA content,pH value and relative leakage rate of pericarp were increased during storage. Most of pigment contents including anthocyanin,flavonoid,phenols,chlorophyll a and total chlorophyll decreased. POD activity was initially increased in 32 HAH and then decreased afterwards. PPO activity was decreased continuously,while the activities of catalase and superoxide dismutase exhibited the pattern of 'increasing-decreasing-increasing' as the storage time progressed. Correlation,stepwise regression and path analyses showed that water loss of pericarp was the major factor of pericarp browning. Principal and cluster analyses showed that there were two stages of pericarp browning during the course of litchi storage. [Conclusion] Water status of pericarp was the most important factor affecting pericarp browning. The pericarp browning happened by stages,which was mainly determined by the water loss of pericarp.

Effects of Dietary Copper Level on Blood and Tissue Copper Contents in Geese

In order to study the effect of dietary copper level on blood and tissue copper contents in geese, one-week Sichuan white geese were randomly divided in- to four groups, and the geese in the first, second, third and fourth groups were fed with diet with copper levels of 39.55, 127.60, 194.75 and 255.22 mg/kg, respective- ly. At the ages of 4, 6, 8, 10 and 12 weeks, the contents of copper in blood, liver, chest muscle and subcutaneous fat of the geese were determined. The effects of dietary copper level, age and sex on the blood and tissue copper contents of geese were analyzed by multivariate analysis of variance. The results showed that the di- etary copper level showed no significant effects on the blood and liver copper con- tents of geese （P〉0.05）; the chest muscle copper content of geese in the second group was significantly higher than that in the first group （P〈0.05）; the subcuta- neous fat copper content of geese in the fourth group was significantly higher than those in the other three groups （P〈0.01）; the age had significant effects on the blood, liver, chest muscle and subcutaneous fat copper contents of geese （P〈0.01）; and the sex showed no significant effects on the blood and tissue copper contents of geese （P〉0.05）.

Effect of Seed Coat on Drying Kinetics of Kidney Bean Seed

Kidney bean seed was dried in a laboratory scale fixed bed. The effect of seed coat on drying dynamic characteristics and the changes of seed coat structure were investigated. A mathematical model was established to simulate the drying process and determine the moisture diffusivity. Numerical results agree well with the experimental data. The average moisture diffusivity of the seed with separated coat is 1.67 times larger than that of the seed with coat, and the moisture diffusivity of seed cotyledon is 3.2 times larger than that of the seed coat. It is proved that the seed coat is the most main resistance of mass transfer and is also one of the key points of the optimization of heat and mass transfer for seed drying.

Passive Electrical Properties of Animal Skin and Human Epidermal Membranes In vitro

\ The suitability of three animal skin species as the model for iontophoresis study was discussed based on the current density measurement, compared with the electrical properties of the human epidermal membrane (HEM) in vitro. The hydration during 48 h period significantly and continuously decreased the animal skin resistance and had much smaller influence on the HEM. The relationship between the pulse voltage and the current across these skin models was similar to those of HEM in different hydration status, but there were some variations in the extent due to the various sensitivities. The profiles could be simulated by the equation of V=(4ART/F) sinh-1 (BI). The parameters A reflected the sensitivity of the skin species to the electrical field. The hairless mouse skin and hairless guinea pig skin were more sensitive than the HEM, the sensitivity of the hairless rat skin was the lowest among the skin species. The results were further proved by the tests of long period voltage regimens, but it was found that significant alteration of the skin resistance occurred in the very short time as the electrical field was set up or discontinued.

Bioinspired superwetting surfaces for fog harvesting fabricated by picosecond laser direct ablation

Fog harvesting has been considered as a promising method for solving water crisis in underdeveloped regions.To mimic and optimize the alleged natural fog harvesting ability of the stenocara beetle,hybrid superhydrophobic(hydrophobic,superhydrophilic)/hydrophilic patterns are processed on stainless steel via picosecond laser direct writing.Basically,after laser processing,the surfaces of stainless steel change from hydrophilic to superhydrophilic.Then,after chemical and heat treatment,the superhydrophilic surfaces become superhydrophobic with ultra-low adhesion,and superhydrophobic(hydrophobic)with ultra-high adhesion,respectively.This work systematically examines the fog harvesting ability of picosecond laser treated surfaces(LTS),pristine surfaces(PS),laser and chemical treated surfaces(LCTS),laser and heat-treated surfaces(LHTS).Compared with the PS,the as-prepared surfaces enhanced the fog harvesting efficiency by 50%.This work provides a fast and simple method to fog collectors,which offer a great opportunity to develop water harvesters for real world applications.

Effect of Different Size of Ground Cyanotis arachnoidea Particles on the Release of β-ecdysone

[Objective] The aim was to investigate the influence of different size of ground Cyanotis arachnoidea C.B.Clarke particles on the release of β-ecdysone.[Method] The content of β-ecdysone extracted from Cyanotis arachnoidea powders of different sizes was detected through HPLC,under the chromatographic conditions：GRACE ODS C18 column（250 mm × 4.6 mm,5 μm）,mobile phase methanol：water= 40：60（V/V）,column temperature 26 ℃,flow rate 1.0 ml/min and detection wavelength 248 nm.[Result] The extracted β-ecdysone from ultra-fine Cyanotis arachnoidea powder（particle size 10,30 and 50 μm） was as more than two folds as common powder（particle size 180 μm）.[Conclusion] The β-ecdysone in ultra-fine powder of Cyanotis arachnoidea was more easily soluble in methanol.The extraction rate of β-ecdysone was significantly higher than that of common powder.The result showed that the technology of ultra-fine pulverization markedly improved the dissolution of the β-ecdysone for increasing the cell breakage rate,and then the active ingredients could be extracted more easily.