Meta-Analysis of Counterattitudinal Advocacy Data: Evidence for an Additive Cues Model     

Sang-Yeon Kim  Raymond W. Preiss  Brittany Peterson 《Communication quarterly》2013,61(5):607-620

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Adolescent sexual initiation through the lens of letters to the editor published in Polish teenage magazines     

Marek S. Kopacz  Aleksandra Bajka-Kopacz 《Sex education》2013,13(2):165-176

Almost all teenage magazines invite readers to submit questions concerning relationships, published as letters to the editor, popularly called ‘advice columns’, often containing explicit questions about sexuality. This study aims to examine, firstly, how themes related to sexual initiation are presented in letters to the editor published in Polish magazines and, secondly, how these themes are reflective of Poland's socio-cultural climate. These aims are achieved through thematic data analysis and by presenting an in-depth history of teenage magazines in Poland. In order of prevalence, the presented themes include entering into a general dialogue focused on sexual activity, eliminating the long-term (e.g. unplanned pregnancy) and short-term (e.g. rejection by one's partner) consequences of sexual activity, establishing ideal circumstances for sexual initiation, and, as a transition stage, meeting needs relevant only to those who have already initiated sexual activity. Although by no means exclusive, these findings offer some insight into adolescent sexual initiation, reflective of Poland's socio-cultural climate, where adolescent sexuality remains a taboo topic and teenage magazines may be viewed by certain groups of adolescents as a resource for supplementing existing sexual education.  相似文献   

Are you in h?     

Marek Kosmulski 《Journal of Informetrics》2013,7(3):693-698

A new method of assessment of scientific papers, scientists, and scientific institutions was defined. The significance of a paper was assessed by the definition of the largest (the most prestigious) set, including that paper in its h-core. The sets of papers were defined by affiliation (country, city, university, department) or by subject (branches and sub-branches of science, journal). The inclusion of a paper in the h-core of certain set(s) was used as an indicator of the significance of that paper, and of the scientific output of its author(s), of their scientific institution(s), etc. An analogous procedure was used to assess the contribution of an individual to the scientific output of his/her scientific institution, branch of science, etc.  相似文献   

Influence of the Probiotic Lactobacillus acidophilus NCFM?and Lactobacillus rhamnosus HN001 on Proteolysis Patterns?of Edam Cheese     

Marek Aljewicz  Gra?yna Cichosz  Beata Nalepa  Marika Kowalska 《Food Technology and Biotechnology》2014,52(4):439-447

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Acute effects of static stretching on characteristics of the isokinetic angle – torque relationship,surface electromyography,and mechanomyography     

Joel T. Cramer  Travis W. Beck  Terry J. Housh  Laurie L. Massey  Sarah M. Marek  Suzanne Danglemeier 《Journal of sports sciences》2013,31(6):687-698

Abstract

The aims of this study were to examine the acute effects of static stretching on peak torque, work, the joint angle at peak torque, acceleration time, isokinetic range of motion, mechanomyographic amplitude, and electromyographic amplitude of the rectus femoris during maximal concentric isokinetic leg extensions at 1.04 and 5.23 rad · s^?1 in men and women. Ten women (mean ± s: age 23.0 ± 2.9 years, stature 1.61 ± 0.12 m, mass 63.3 ± 9.9 kg) and eight men (age 21.4 ± 3.0 years, stature 1.83 ± 0.11 m, mass 83.1 ± 15.2 kg) performed maximal voluntary concentric isokinetic leg extensions at 1.04 and 5.23 rad · s^?1. Following the initial isokinetic tests, the dominant leg extensors were stretched using four static stretching exercises. After the stretching, the isokinetic tests were repeated. Peak torque, acceleration time, and electromyographic amplitude decreased (P≤ 0.05) from pre- to post-stretching at 1.04 and 5.23 rad · s^?1; there were no changes (P > 0.05) in work, joint angle at peak torque, isokinetic range of motion, or mechanomyographic amplitude. These findings indicate no stretching-related changes in the area under the angle – torque curve (work), but a significant decrease in peak torque, which suggests that static stretching may cause a “flattening” of the angle – torque curve that reduces peak strength but allows for greater force production at other joint angles. These findings, in conjunction with the increased limb acceleration rates (decreased acceleration time) observed in the present study, provide tentative support for the hypothesis that static stretching alters the angle – torque relationship and/or sarcomere shortening velocity.  相似文献   

Social stratification in Higher Education: What it means at the micro‐level of the individual academic scientist     

Marek Kwiek 《Higher Education Quarterly》2019,73(4):419-444

The academic profession is internally divided as never before. This cross‐national comparative analysis of stratification in Higher Education is based on a sample of European academic scientists (N = 8,466) from universities in 11 countries. The analysis identifies three types of stratification: academic performance stratification, academic salary stratification, and international research stratification. This emergent stratification of the global scientific community is predominantly research‐based, and internationalisation in research is at its centre; prestige‐driven, internationally competitive, and central to academic recognition systems, research is the single most stratifying factor in Higher Education at the level of the individual scientist today. These stratification processes pull the various segments of the academic profession in different directions. The study analyses highly productive academics (‘research top performers’), highly paid academics (‘academic top earners’), and highly internationalised academics (‘research internationalists’) and explores the implications for individual scientists.  相似文献   

New seniority-independent Hirsch-type index     

Marek Kosmulski   《Journal of Informetrics》2009,3(4):341-347

The following seniority-independent Hirsch-type index has been defined. A scientist has index hpd if hpd of his/her papers have at least hpd citations per decade each, and his/her other papers have less than hpd + 1 citations per decade each. In contrast with the original h-index, which steadily increases in time, hpd of a mature scientist is nearly constant over many years, and hpd of an inactive scientist slowly declines. Therefore hpd is suitable to compare the scientific output of scientists in different ages.  相似文献   

DNA-like linguistic secret sharing for strategic information systems     

Marek R. Ogiela  Urszula OgielaAuthor Vitae 《International Journal of Information Management》2012

The development of DNA cryptography has contributed to the ability of solving many computationally difficult problems by offering the capability of executing calculations in parallel. This capability is used particularly in solving NP-complete problems or implementing cryptography and steganography solutions. Biological computation models based on bonds between nitrogen bases in nucleic acid chains that make up DNA structures can also be used to develop new solutions for smart information management. This study discusses new secret splitting techniques based on mathematical linguistic methods and designed for intelligently managing secret data within hierarchical structures. These techniques make use of information coding models found in the coding of DNA sequences.  相似文献   

In the aftermath of CAyn Jālūt: The beginnings of the Mamlūk‐Ilkhānid cold war     

Reuven Amitai‐Preiss 《Al-Masaq: Islam & the Medieval Mediterranean》1990,3(1):1-21

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Philosophies and ethics of the project archive     

Marek Tesar  Sonja Arndt 《Educational Philosophy and Theory》2019,51(4):434-444

Archival research can be described as preoccupied with the ontology of data formation and collection in relation to the speaking and writing subject. From its outset, it can be located in the humanistic tradition, which the archival and historical discipline has inherited. Thus, archival research can be described as preoccupied with the ontology of data formation and collection in relation to the speaking and writing subject. At the same time, the archival researcher—the human subject—is produced as the sole source of subjective experiences, consciousness and feelings, and has become the central player in this tradition, embedded in debates over the concept of human autonomy in archival research. Archival researchers—human subjects—should be continually challenged by their own discipline, and by such arguably scientific methods, which often espouse rejecting their ethical commitments to idiosyncrasy, entanglements and the blurring of subject–object binaries. An approach that re-elevates these commitments, we argue, raises the importance of archival research as an ethically non-neutral philosophical project.  相似文献