The dimensional structure of students’ self-concept and interest in science depends on course composition
Publication date: April 2019Source: Learning and Instruction, Volume 60Author(s): Malte Jansen, Ulrich Schroeders, Oliver Lüdtke, Herbert W. MarshAbstractBoth academic self-concept and interest are considered domain-specific constructs. Previous research has not yet explored how the composition of the courses affects the domain-specificity of these constructs. Using data from a large-scale study in Germany, we compared ninth-grade students who were taught science as an integrated subject with students who were taught biology, chemistry, and physics separately with regard to the dimensional structure of their self-concepts and interests. Whereas the structure of the constructs was six-dimensional in both groups (self-concept and interest factors for biology, chemistry, and physics), the correlations between the domain-specific factors were higher in the integrated group. Furthermore, the pattern of gender differences differed across groups. Whereas male students generally showed higher self-concept and interest in physics and chemistry, a small advantage for male students in biology was only present in integrated science teaching group. We conclude that aspects of the learning environment such as course composition may affect the dimensional structure of motivational constructs.
The smuggling of unlawful migrants from the Northern Triangle region of Central America—Guatemala, Honduras and El Salvador—to the United States generated between $200 million and $2.3 billion for human smugglers in 2017. The wide range reflects uncertainty about the number of migrants that travel northward, their use of smugglers and the fees they pay.
Even for the parents of a child with muscular dystrophy whose child qualifies for a treatment that may stop the disease, good news may be followed by agonizing, life-or-death choices. What treatments seem most promising? Should he be enrolled in a trial with a placebo arm?
Xin Feng, Jialiang Li, Han Li, Hang Chen, Fei Li, Quewang Liu, Zhu-Hong You, Fengfeng Zhou
Shaoyan Sun, Fengnan Sun, Yong Wang
Binhua Tang, Zixiang Pan, Kang Yin, Asif Khateeb
Tony L. R. Silveira, Gabriel B. Martins, William B. Domingues, Mariana H. Remi ão, Bruna F. Barreto, Ingrid M. Lessa, Lucas Santos, Danillo Pinhal, Odir A. Dellagostin, Fabiana K. Seixas, Tiago Collares, Ricardo B. Robaldo, Vinicius F. Campos
Publication date: Available online 25 March 2019Source: Trends in GeneticsAuthor(s): Danai Chasioti, Jingwen Yan, Kwangsik Nho, Andrew J. SaykinAdvances in high-throughput genotyping and next-generation sequencing (NGS) coupled with larger sample sizes brings the realization of precision medicine closer than ever. Polygenic approaches incorporating the aggregate influence of multiple genetic variants can contribute to a better understanding of the genetic architecture of many complex diseases and facilitate patient stratification. This review addresses polygenic concepts, methodological developments, hypotheses, and key is...
We examined the associations of E158K, along with rare and low frequency exonic variants (minor allele frequency [MAF]
Authors: Lioufas N, Hawley CM, Cameron JD, Toussaint ND Abstract Chronic kidney disease (CKD) is associated with excess cardiovascular mortality, resulting from both traditional and nontraditional, CKD-specific, cardiovascular risk factors. Nontraditional risk factors include the entity Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD) which is characterised by disorders of bone and mineral metabolism, including biochemical abnormalities of hyperphosphatemia and hyperparathyroidism, renal osteodystrophy, and vascular calcification. Increased arterial stiffness in the CKD population can be attributed amongs...
Authors: Li Y, Nawabi AQ, Feng Y, Dai Q, Ma G, Liu N Abstract Aim: The aim of present study was to determine the safety and efficacy of a new renal artery denervation system for treatment of hypertensive patients. Methods: Hypertensive patients with mean office systolic blood pressure ≥150mmHg and ≤180mmHg or an average of 24-hour ambulatory systolic blood pressure ≥145mmHg and ≤170mmHg after stopping hypertensive medications for 2 weeks or more were enrolled to undergo renal denervation (RDN) using a new RDN system. Changes in office blood pressure and mean 24-hour ambulatory blood pressure and saf...