Prostate specific antigen in patients of benign prostate hypertrophy and carcinoma prostate     

T. Malati  G. Rajani Kumari  P. V. L. N. Murthy  Ch. Ram Reddy  B. Surya Prakash 《Indian journal of clinical biochemistry : IJCB》2006,21(1):34-40

Prostate Specific Antigen (PSA) has emerged as the most applicable and important tumor marker for carcinoma prostate. In the present study PSA was determined in serum of healthy subjects, patients of benign prostate hypertrophy (BPH) and Carcinoma Prostate (Ca−P) to evaluate its diagnostic efficiency in day to day management of prostate cancer patients and in differentiating patients of early prostate cancer from those with BPH. Receiver operating characteristic curve (ROC) revealed 2 ng/ml and 10 ng/ml cut off serum PSA level for BPH and untreated carcinoma prostate patients (Ca−P). An extremely significant increase (P<0.0001) was observed in mean PSA concentration in BPH patients and adenocarcinoma prostate patients when compared to healthy males. Clinical relevance of PSA was highlighted by a case study of cancer patient prior to any therapy till death.  相似文献   

Toward an understanding of academic self‐concept in distance education     

Chère Campbell Gibson 《The American journal of distance education》2013,27(1):23-36

Abstract

Academic self‐concept has been demonstrated to influence student success in distance education. The purpose of this study was to examine the nature of academic self‐concept in distance education and to determine its enhancers and detractors. It was determined that this construct is dynamic and multi‐faceted: the process of both learning as an adult and learning at a distance, as well as the content studied, influences academic self‐concept. Implications for both practice and further research are discussed.  相似文献   

Let’s Meet in Nepantla: The Possibility of Thirdspace as a Place “Others” Call Home     

Minerva S. Chávez 《Journal of Latinos & Education》2015,14(4):336-344

This autoethnography posits that my presence as a working-class Chicana obtaining an education in the United States consequently created a Thirdspace environment I recognize as Nepantla. Thirdspace allowed me to navigate urban schooling and elite institutions of higher education. Two narratives demonstrate opposing forms of acquired dominant and nondominant forms of cultural capital to interrogate the value of Thirdspace when considering unique knowledge generated by an insider along the margins. This article articulates that strategic construction of bridges into Nepantla may assist Latino students to successfully navigate the schooling experience and offer the potential to reframe educational discourse.  相似文献   

浙南药用植物中的一新种——菜头肾     

林泉 《中国科学院研究生院学报》1975,13(3):93-94

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Biopower,disciplinary power,and the production of the 'good Latino/a teacher'     

Donna Kalmbach Phillips  Robert Ch. Nava 《Discourse: Studies in the Cultural Politics of Education》2011,32(1):71-83

This inquiry explores who is the ‘good teacher of color’. Through Michel Foucault's notion of biopower and disciplinary power, the analysis attempts to problematize the subject-position of ‘teacher of color’ by exploring how a Latino intern and a Latina intern negotiated their subjectivity in a large diverse school district. Participants' construction of subjectivity was found to be located within the nexus of the school district, the university, and the Latino counter-discourse through which biopower and disciplinary power operated.  相似文献   

Complex three-dimensional high aspect ratio microfluidic network manufactured in combined PerMX dry-resist and SU-8 technology     

Meier RCh  Badilita V  Brunne J  Wallrabe U  Korvink JG 《Biomicrofluidics》2011,5(3):34111-3411110

In this paper we present a new fabrication method that combines for the first time popular SU-8 technology and PerMX dry-photoresist lamination for the manufacturing of high aspect ratio three-dimensional multi-level microfluidic networks. The potential of this approach, which further benefits from wafer-level manufacturing and accurate alignment of fluidic levels, is demonstrated by a highly integrated three-level microfluidic chip. The hereby achieved network complexity, including 24 fluidic vias and 16 crossing points of three individual microchannels on less than 13 mm(2) chip area, is unique for SU-8 based fluidic networks. We further report on excellent process compatibility between SU-8 and PerMX dry-photoresist which results in high interlayer adhesion strength. The tight pressure sealing of a fluidic channel (0.5 MPa for 1 h) is demonstrated for 150 μm narrow SU-8/PerMX bonding interfaces.  相似文献   

Autoethnography,a Chicana's Methodological Research Tool: The Role of Storytelling for Those Who Have No Choice but to do Critical Race Theory     

Minerva S. Chávez 《Equity & Excellence in Education》2013,46(2):334-348

This article investigates the role of autoethnographic research as the methodological tool of choice for a Chicana who positions herself along the liminal perspective. I posit that testimonios, autobiographical educational experiences, must be used as valid ethnographic research to contribute to existing knowledge around issues of educational equity. Producing autoethnographic research acknowledges and validates my Chicana presence as well as draws attention to my marginal position inside dominant structures of education. Autoethnography and critical race theory are the manners in which I think about the world and the ways I have chosen to engage in educational research. My work is derived from personal experience in Los Angeles urban schools and later in elite institutions of higher education. These distinct locations present a unique opportunity to problematize the internalized forms of class and racial structures that permeate educational institutions. Grounded in my own educational biography, testimonios frame my research perspective to interrogate the role that educational institutions play in the creation of particular ideologies in working-class students of color.  相似文献   

Developing mathematics education in a systemic process     

Erich Ch. Wittmann 《Educational Studies in Mathematics》2001,48(1):1-20

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Anatomical education: A team effort     

Alice M. Roberts Ph.D.  M.B.B.Sc.  B.Ch.  I.L.T.M. 《Anatomical sciences education》2009,2(4):195-195

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ISSR markers based on GA and AG repeats reveal genetic relationship among rice varieties tolerant to drought, flood, or salinity     

Ch Surendhar Reddy  A. Prasad Babu  B. P. Mallikarjuna Swamy  K. Kaladhar  N. Sarla 《Journal of Zhejiang University. Science. B》2009,10(2):133-141

Drought,flood,salinity,or a combination of these limits rice production.Several rice varieties are well known for their tolerance to specific abiotic stresses.We determined genetic relationship among 12 rice varieties including 9 tolerant to drought,flood,or salinity using inter-simple sequence repeat (ISSR) markers.Based on all markers,the nine tolerant varieties formed one cluster distinct from the cluster of three control varieties.The salt-tolerant varieties were closest to two flood-tolerant varieties,and together they were distinct from the drought-tolerant varieties.(GA)8 YG was the most informative primer,showing the highest polymorphic information content (PIC) and resolving power (Rp).The drought-,flood-,and salt-tolerant varieties grouped in three distinct clusters within the group of tolerant varieties,when (GA)8 YG was used.Sabita was the only exception.The two aus varieties,Nagina22 and FR13A,were separated and grouped with the drought-and flood-tolerant varieties,respectively,but they were together in dendrograms based on other primers.The results show that ISSR markers associated with (GA)8 YG delineated the three groups of stress-tolerant varieties from each other and can be used to identify genes/new alleles associated with the three abiotic stresses in rice germplasm.  相似文献