Adolescents’ motives for selling sex in a welfare state – A Swedish national study     

《Child abuse & neglect》2018

In addition to money or other compensation, other motives for selling sex may be important in a welfare country such as Sweden. The aim of this study was to carry out an exploratory investigation of adolescents’ motives for selling sex in a population-based survey in Sweden. A total of 5839 adolescents from the third year of Swedish high school, mean age 18.0 years, participated in the study. The response rate was 59.7% and 51 students (0.9%) reported having sold sex. Exploratory factor analysis and hierarchical cluster analysis were used to identify groups of adolescents according to underlying motives for selling sex. Further analyses were carried out for characteristics of selling sex and risk factors. Three groups of adolescents were categorized according to their motives for selling sex: Adolescents reporting; 1) Emotional reasons, being at a greater risk of sexual abuse, using sex as a means of self-injury and having a non-heterosexual orientation. 2) Material but no Emotional reasons, who more often receive money as compensation and selling sex to a person over 25 years of age, and 3) Pleasure or no underlying motive for selling sex reported, who were mostly heterosexual males selling sex to a person under 25 years of age, the buyer was not known from the Internet, the reward was seldom money and this group was less exposed to penetrative sexual abuse or using sex as a means of self-injury. In conclusion, adolescents selling sex are a heterogeneous group in regard to underlying motives.  相似文献   

性别、体质量与学生体育成绩的成因探讨     

刘忠杰  邵安安 《湖北体育科技》2003,22(4):459-461

以 2 0 0 1年全校初一新生为研究对象 ,通过对其性别、体质量、体育成绩的分析 ,科学阐述性别、体质量这2项因素与体育成绩的成因关系。结果表明 :性别、体质量对体育成绩的影响在统计学上具有非常显著和显著性的差异 (P <0 0 0 0 1,P =0 0 0 2 4)。女生成绩明显优于男生 (女生 =75 83± 10 71,男生 =67 72± 10 51) ,体质量位于中等和中上者的学生成绩相近 ,2组均优于上等组 (中等组 =74 2 4± 10 58,中上组 =73 87± 12 54,上等组 =68 60± 10 82 )。  相似文献   

《期货交易实务》课程教学资源开发的探索与实践   总被引：2，自引：2，他引：0  

伍立凌 《广西广播电视大学学报》2004,15(2):18-24

作为远程高等教育开放本科工商管理专业的专业课,《期货交易实务》是一门操作性较强的应用型经济学科。现代远程高等教育教学模式下,师生们在教学过程中处于时间、空间和心理上的准分离状态,此时,如何将现代远程高等教育教学模式的具体要求与本课程的教学内容进行有机结合,开发《期货交易实务》课程教学资源以满足“学生自主学习”的教学需求,这是我们课程开发小组面临的一个课题。本文根据《期货交易实务》课程开发小组的具体实践,对这一课题进行了较为详尽的探讨。  相似文献   

不同年龄性别学生健身运动参与动机的探讨     

尹章豹  李可可  任敏  黄江林  严五四 《安徽体育科技》2004,(Z1)

健身运动是促进人类健康的有效途径。通过采用文献资料、问卷调查等方法,以青少年学生为研究对象,调查学生对健身运动的认知、爱好以及参与程度,分析社会因素和心理中介与学生健身运动参与动机之间的关系,对青少年学生健身运动参与动机进行深一层次的探讨,旨在为学校体育教学提供理论参考依据。  相似文献   

递增负荷运动过程中ER、PR水平的变化及其与性腺类固醇的关系   总被引：2，自引：0，他引：2  

郑陆  隋波  潘力平  李晔  沈东颖  王娟  林晓光  王明燕  段平 《山东体育学院学报》2005,21(5):54-57,61

低性腺类固醇水平是AMi的重要特征之一.为了探讨低性激素环境下ER（雌激素受体）、PR（孕激素受体）的变化特点及激素与受体间的相互影响作用关系，并探讨其在运动性月经失调中的作用机制，本研究对递增负荷运动过程中及4个恢复期后，大鼠子宫和卵巢ER、PR及血清E2、P水平的变化进行了连续监测.结果显示，血清E2、P随运动负荷量的加大而逐渐降低，组织ER、PR水平随运动负荷量的加大呈渐进性升高.受体水平在停训后的恢复期内随着E2、P水平的回升，逐渐回落.结果表明，运动中受体水平的变化可能为非激素依赖性升高，这种升高或许是机体对长期运动训练造成的低性激素环境的一种适应性反应，可能是AMI病理机制过程的重要一环.恢复期受体水平的恢复与E2水平的升高具有直接关系。  相似文献   

普通高校学生体育意识、信念和行为的性别比较分析   总被引：2，自引：0，他引：2  

李志荣  张春甫 《南京体育学院学报(社会科学版)》2003,17(3):80-81

通过对南京师范大学部分学生的体育意识、信念和行为的调查分析发现 ,与男生相比 ,女生的体育意识相对较差 ,心理、社会效果的信念较低 ,从而导致了运动参与水平的低下。调动女生参与运动的积极性是学校体育教育的一个努力方向  相似文献   

9——18岁学生最大吸氧量的纵向研究   总被引：3，自引：0，他引：3  

王步标  肖泽亮  王翔  曾凡弟  伍民  常灿如  胡文烨  汤长发 《体育学刊》1995,(2)

本文采用复盖式纵向研究法,对9—18岁男女学生的最大吸氧量进行连续4年的直接测定,分析研究了其自然发展规律及年龄、性别特征。  相似文献   

Coeducational and single-sex physical education: students’ situational interest in learning tasks centred on technical skills     

Vanessa Lentillon-Kaestner  Cédric Roure 《Physical Education & Sport Pedagogy》2019,24(3):287-300

Background: A student’s choice to engage in a learning task is highly related to the student’s environmental stimuli and his or her perception of interest. From this perspective, the construct of situational interest (SI) has been used to interpret students’ motivation in task engagement. SI is assumed to be transitory, environmentally activated, and context specific. It has been conceptualized as a multidimensional construct with five dimensions: instant enjoyment, exploration intention, attention demand, novelty, and challenge. Few prior studies have compared SI between girls and boys in physical education (PE) contexts, and these studies have offered contrasting findings. They were conducted in coeducational (coed) or single-sex contexts and used learning tasks centred on a variety of outcomes: technical or tactical skills, creativity and cultural understanding.

Purpose: In the context of the debate on single-sex and coed classes in PE, this study aimed to estimate the effects of single-sex and coed PE classes on students’ situational interest (SI) within learning tasks centred on technical skills. The researchers decided to study learning tasks centred on the development of students’ technical skills, since these tasks are often used by teachers in PE.

Participants: The sample consisted of 177 Swiss secondary school students, aged 11–17 years (M?=?14.07, SD?=?1.41, 96 boys, 81 girls).

Data collection: The students completed the French 15-item SI Scale after practising a technical learning task in single-sex and coed PE contexts. The researchers chose five physical activities (i.e. athletics, basketball, dance, gymnastics, and volleyball), which are commonly taught in the state of Vaud (Switzerland) and provide a balance between masculine and feminine activities.

Data analysis: A two-way repeated-measures MANOVA was performed to examine the main and interaction effects of student sex and class sex composition on the five SI dimensions.

Findings: The results showed a main effect of class sex composition on student SI but no main effect of student sex and no interaction effect of student sex and class sex composition. More precisely, the scores for three SI dimensions (i.e. instant enjoyment, exploration intention, and attention demand) were higher in the coed context than in the single-sex context.

Conclusions: This study encourages teachers to propose coed PE classes to enhance students’ motivation and engagement when practising learning tasks centred on technical skills. This study offers supplementary evidence of the teacher’s role in promoting student SI. Beyond accounting for students’ dispositional factors (e.g. sex), PE teachers can significantly impact students’ SI in technical learning tasks through instructional choices.  相似文献   

Changes in kinematics and arm–leg coordination during a 100-m breaststroke swim     

Samuel W. Oxford  Rob S. James  Michael J. Price  Carl J. Payton  Michael J. Duncan 《Journal of sports sciences》2017,35(16):1658-1665

The purpose of this study was to compare arm–leg coordination and kinematics during 100 m breaststroke in 26 (8 female; 18 male) specialist breaststroke swimmers. Laps were recorded using three 50-Hz underwater cameras. Heart rate and blood lactate were measured pre- and post-swim. Arm–leg coordination was defined using coordination phases describing continuity between recovery and propulsive phases of upper and lower limbs: coordination phase 1 (time between end of leg kick and start of the arm pull phases); and coordination phase 2 (time between end of arm pull and start of leg kick phases). Duration of stroke phases, coordination phases, swim velocity, stroke length (SL), stroke rate (SR) and stroke index (SI) were analysed during the last three strokes of each lap that were unaffected by turning or finishing. Significant changes in velocity, SI and SL (P < 0.05) were found between laps. Both sexes showed significant increase (P < 0.05) in heart rate and blood lactate pre- to post-swim. Males had significantly (P < 0.01) faster swim velocities resulting from longer SLs (P = 0.016) with no difference in SR (P = 0.064). Sex differences in kinematic parameters can be explained by anthropometric differences providing males with increased propelling efficiency.  相似文献   

中国人性别角色量表的建构及其与心理社会适应的关系     

王登峰  崔红 《西南师范大学学报(人文社会科学版)》2007,33(4):1-9

本研究的目的是建立中国人的性别角色量表，并探索不同性别角色类型的个体其心理社会适应水平的特点。研究一根据5000多名被试对中国人人格量表项目的反应挑选出男女被试有显著差异的项目，经过因素分析建立了各由30个项目组成，分别由七个和六个因素构成的中国人男性化和女性化量表，并据此将被试划分为未分化、女性化、男性化和双性化四种性别角色类型。研究二则比较了不同性别角色类型与心理健康的关系，表明在中国被试中双性化的个体心理社会适应水平最低、女性化个体心理社会适应最好。这一结果与Bem关于双性化的假设是截然相反的。本研究从中国文化与性别角色的关系对这一结果进行了解释，提出了中国文化是女性化文化，同时又是反男性化文化的假设，并对进一步研究的方向进行了讨论。  相似文献