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SENSITIVITY OF THE CONCENTRATION CHANGE OF dYE dISPENSING USING COMPUTER SYSTEMS

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Journal of China Textile University(English edition) 1993年第4期10卷 81-88页

作者： d.P.Oulton 陈平彪 Textile department UMISTManchesterU.K.

This paper employs computer colour generation,and match prediction systems and aims tofind the most critical change of dye concentration corresponding to changes of Hue,or Chroma,orLightness of 1 unit just visible colour difference,thus investigating the required accuracy level fordyeing *** leads to the selection of one critical colour-difference dimension of threefrom CMC (1:c) *** results reveal that the concentration change in dye dispensing ismost critical for change of Hue in a computer controlled *** formula describing the rela-tionship Of △E and △H in CMC (2:1) measurement is selected for further investigation.

关键词： dye concentration change dye dispensing dye formulation computer colourmatching colour-difference formulae

Prevention of erectile dysfunction after radiotherapy for prostate cancer

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Asian Journal of Andrology 2014年第6期16卷 805-806页

作者： Izak Faiena Neal Patel Allen d Seftel division of Urology Rutgers Robert Wood JohnsonMedical School N J USA 2division of Urology Cooper Medical School of Rowan University CamdenN J USA.

With increasing scrutiny of prostate cancer （PCa） diagnosis and treatment, much attention has been given to the morbidity caused by radical prostatectomy （RP） and/or radiotherapy （RT）. One of the most common side-effects of either treatment is erectile dysfunction （ed）.1 Approximately, 40% of patients will experience ed after RT for PCa. The post-RT ed causes significant patient dissatisfaction with cancer treatment as well as decrease in patient and partner psychosocial function,z To address this issue in patients undergoing RT, Pisansky et al.3 conducted a prospective, randomized, double-blinded, placebo-controlled trial to assess the efficacy of a phosphodiesterase enzyme-5 inhibitor （PdE5i）, tadalafil, as a preventive measure for patients undergoing RT for PCa and found no difference in erectile function between the control and treatment groups.

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L-arginine, the substrate of nitric oxide synthase,inhibits fertility of male rats

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Asian Journal of Andrology 2001年第2期3卷 97-103页

作者： W.d.Ratnasooriya M.G.dharmasiri department of Zoology University of Colombo Colombo 3 Sri LankaDepartment of Zoology University of Colombo Colombo 3 Sri Lanka

Aim: To examine the effect of L-arginine, the substrate of nitric oxide (NO) synthase, on reproductive function ofmale rats. Methods: Male rats were gavaged with either L-arginine (100 or 200 mg·kg^(-1)·d^(-1)), d-arginine (200mg·kg^(-1)·d^(-1)) or vehicle (0.9% NaCl) for seven consecutive days. Their sexual behaviour and fertility were evaluat-ed using receptive females. Results: L-arginine (200 mg/kg) had no significant effect on sexual competence (interms of sexual arousal, libido, sexual vigour and sexual performance). In mating experiments, the higher dose of L-arginine effectively and reversibly inhibited fertility, whilst the lower dose and the inactive stereoisomer d-arginine hadno significant effect. The antifertility effect caused by L-arginine was due to a profound elevation in the preimplantationloss mediated possibly by impairment in epididymal sperm maturation, hyperactivated sperm motility and sperm capaci-tation. Conclusion: Elevated NO production may be detrimental to male fertility.

关键词： L-arginine nitric oxide fertility libido sex behavior pre-implantation loss sperm motility contraceptives

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中国男科学杂志 2022年第1期 84-84页

作者：近年来研究发现低血清 -(OH)d是ed发生的

危险因素[8-9],当血清25-(OH)d水平低于20ng/ml时,会增加ed的发病率,而当血清25-(OH)d>35ng/ml可降低ed的发病率[10]。机体处于低血清25-(OH)d水平时,其抑制血管细胞粘附分子和膜型基质金属蛋白酶的表达作用减弱,诱导血栓调节蛋白及抗...

危险因素[8-9],当血清25-(OH)d水平低于20ng/ml时,会增加ed的发病率,而当血清25-(OH)d>35ng/ml可降低ed的发病率[10]。机体处于低血清25-(OH)d水平时,其抑制血管细胞粘附分子和膜型基质金属蛋白酶的表达作用减弱,诱导血栓调节蛋白及抗凝血酶的表达作用也减弱,血管内皮细胞损伤诱导的血小板活化和聚集作用增强,同时白细胞与内皮细胞的相互作用增强,更容易引起动脉粥样硬化及血栓形成,最终导致ed。血清25-(OH)d水平的降低一方面会通过加重血管内皮的氧化应激反应,损伤血管内皮细胞,导致阴茎海绵体血管窦中的一氧化氮(NO)合成减少、利用降低,阻

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The Origin and Tectonic Setting of Precambrian Greywacke of Ribandar-Chimbel, Goa, India： Petrological and Geochemical Evidence

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Acta Geologica Sinica(English edition) 2016年第6期90卷 2036-2048页

作者： Glancia Q FERNANdES Sridhar d. IYER Mahender KOTHA department of Earth Science Goa University Taleigao Plateau Goa 403206 India department of Civil Engineering Don Bosco College of Engineering Fatorda Margao Goa 403602 India CSIR-National Institute of Oceanography Dona Paula Goa 403004 India

The Precambrian greywacke of Ribandar-Chimbel belonging to the Sanvordem Formation of the Goa Group, India, has been studied for petrography and analyzed for major trace elements. The greywacke is characterized by angular to sub-round grains of quartz, feldspar, biotite, chlorite and clay minerals. The abundance of clay in the matrix seems to have influenced the Al2O3 content and the K20/Al2O3 ratio. The variation diagrams indicate a decreasing trend of TiO2, Al2O3, Fe2O3 and MgO; whereas Na2O and CaO exhibit a scatter which could be a result of the variable presence of feldspar within the sediments. The immobile elements, vanadium （25 to 144 ppm）, nickel （up to 107 ppm） and chromium （up to 184 ppm）, reflect abundance of clay minerals. The greywacke shows strongly fractionated REE patterns with LaN/YbN = 8 to 26 and with higher total REE abundances （up to 245 ppm）. The low REE enrichment and depletion in heavier REE with prominent negative Eu anomaly （Eu/Eu^＊= 0.54 to 0.79） suggest a derivation of the greywacke from an old upper continental crust composed chiefly of felsic components. Petrological evidence and geochemical data suggest that the deposition of the greywacke largely took place in a deep to shallow basin that progressively chang- ed from that of a continental island arc to an active continental setting.

关键词： greywacke petrochemistry origin diagenesis active continental setting Goa dharwar Craton

Effect of heat-input on pitting corrosion behavior of friction stir welded high nitrogen stainless steel

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Journal of Materials Science & Technology 2019年第7期35卷 1278-1283页

作者： H.Zhang P.Xue d.Wang L.H.Wu d.R.Ni B.L.Xiao Z.Y.Ma Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

In this study, different welding param eters were selected to investigate the effects of heat-in put on the microstructure and corrosion resistance of the friction stir welded high nitrogen stainless steel joints. The results show ed that, the welding speed had major influence on the duration at elevated tem perature rather than the peak tem perature. The hardness distribution and tensile properties of the nugget zones (NZs) for various joints were very similar while the pitting corrosion behavior of various NZs showed major differences. Large heat-input resulted in the ferrite bands being the pitting location, while tool wear bands were sensitive to pitting corrosion in the low heat-input joints. Cr diffusion and tool wear were the main reasons for pitting. The mechanisms of pitting corrosion in the NZs were analyzed in detail.

关键词： High nitrogen stainless steel Friction stir welding Mechanical properties Corrosion resistance Heat-input

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性骚扰对工程学是一种威胁

科技纵览 2018年第11期 8-9页

作者： C.d.Mote Jr. Sheila E.Widnall ed Lazowska Nicole Xu(插图) 美国国国家工程院麻省理工学院航空工程学院比尔及梅琳达·盖茨基金会华盛顿大学不详

美国国家科学院发布的一项报告表明,性侵犯问题得不到解决,受伤害的将不仅仅是受害者本人。几十年来,工程学界一直在努力提高女性在大学和行业中的比例,但进展缓慢。在美国,仅有21%的工程学士学位授予女性,而且见习工程师中只有11%为女... 详细信息

美国国家科学院发布的一项报告表明,性侵犯问题得不到解决,受伤害的将不仅仅是受害者本人。几十年来,工程学界一直在努力提高女性在大学和行业中的比例,但进展缓慢。在美国,仅有21%的工程学士学位授予女性,而且见习工程师中只有11%为女性。虽然这个问题很复杂,但我们必须认识到性骚扰是一个影响因素,这导致了工程学教育和工作的环境充满恶意,女性不敢踏足该领域半步。权威研究表明,20%-50%的女大学生在大学期间受到过性骚扰。

关键词：工程学骚扰女大学生女性科学院受害者工程师美国

Interleukin-6 and its soluble receptor in patients with liver cirrhosis and hepatocellular carcinoma

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World Journal of Gastroenterology 2006年第16期12卷 2563-2568页

作者： Soresi Maurizio Giannitrapani Lydia d'Antona Fabio Florena Ada Maria La Spada Emanuele Terranova Angela Cervello Melchiorre d'Alessandro Natale Montalto Giuseppe dipartimento di Medicina Clinica e delle Patologie Emergenti Policlinico UniversitarioPalermoItaly Istituto di Anatomia ed Istologia Patologica Policlinico UniversitarioPalermoItaly Istituto di Biomedicina ed Immunologia Molecolare C.N.R.PalermoItaly dipartimento di Scienze Farmacologiche Pohclinico UniversitarioPalermoItaly

AIM： To evaluate the immunohistochemical localization of interleukin-6 （IL-6） and IL-6 receptor （IL-6R） on tumor tissue specimens from patients with hepatocellular carcinoma （HCC） and the serum levels of IL-6 and sIL-6R in a group of patients with HCC as well as liver cirrhosis （LC） in a group of patients with LC alone and in a control group. METHOdS： Three groups of subjects were studied： group Ⅰ （n =83） suffering from HCC and LC, group Ⅱ （n = 72） suffering from LC alone and group Ⅲ （n =42） as healthy controls. All patients had hepatitis C virus infection. Serum IL-6 and IL-6R levels were determined using a commercially available ELISA kit. Immunohistochemistry was performed using the streptavidin-biotin complex and rabbit polyclonal antibodies against IL-6 and IL-6R. RESULTS： Immunohistochemistry analysis showed a medium to strong cytoplasmic and membrane reactivity for IL-6 and IL-6R respectively, in at least 40% of cases of HCC, whereas liver cirrhosis patients and controls were negative for IL-6 or showed a very mild and focal dot-like cytoplasmic reaction for IL-6R. Serum IL-6 levels in HCC group were significantly higher than those in LC and control groups （P〈 0.0001）. There was no significant difference in sIL-6R concentrations among 3 groups. When the patients with HCC were divided into groups according to Okuda＇s classification, a significant serum increase of IL-6 and slL-6R level was observed from stage Ⅰ to stage Ⅲ （P〈0.02, P〈0.0005）. When HCC and LC patients were divided into 3 classes of cirrhosis severity according to Child-Pugh, values in HCC patients were significantly higher than those in LC patients for each corresponding class （P〈 0.01）. CONCLUSION： IL-6 serum levels in HCC patients are higher than those in LC patients and controls, suggesting an increased production of this cytokine by neoplastic cells, sIL-6R values are similar in all groups, increasing only in stage III HCC patients. These data suggest that they have a closer relationship wit

关键词： Interleukin-6 Cytokine Chronic liver disease Immunohistochemistry

The Role of Teachers’Apperception in Herbart’s Theory for Chinese Teaching in Shenzhen Primary Schools of China

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Journal of Contemporary educational Research 2024年第11期8卷 347-354页

作者： Huangzhong Luo detkul Matavanukul ed.d Suvarnabhumi Institute of Technology Chongqing 400000China

This paper deeply analyzes the practical application of Herbart’s educational concept in contemporary education and teaching,especially its guiding significance to the primary school Chinese classroom in Shenzhen *** proposed that teachers should play a key role in students’cognitive process,that is,help students better understand and master new knowledge by combining it with existing *** survey results show that although teachers have some understanding of Herbart’s educational philosophy,it is not widely used in the concrete teaching ***,the study also shows that there is a positive relationship between Herbart’s theory and students’academic performance,indicating that it plays an important role in improving students’interest and engagement in *** research also reveals the differences between educational concepts and practices,as well as the uneven distribution of educational resources,and puts forward measures to alleviate these contradictions,such as strengthening teacher training,improving teaching methods,and emphasizing moral *** the same time,the study also highlights the critical role of teachers in promoting knowledge integration,arousing learning enthusiasm,shaping students’moral character,and promoting personal and professional growth.

关键词： Herbart’s educational theory Teacher apperception role Teaching method optimization educational resource allocation