Online Class Resitation Learning Model During the Covid-19 Pandemic to Increase Outcomes Students Learning in Class Accounting Lessons

This study aims to determine the improvement of student learning outcomes through the online class recitation learning model during the covid-19 pandemic, on the learning process of class X1 students of the Accounting Department at SMK Negeri 1 Tompaso Baru Minahasa, totaling 14 students. The online classroom research method used is in the form of CAR (Classroom Action Research) which refers to classroom action research. In terms of treatment, learning is given that applies an online class recitation learning model. From the results of the analysis obtained by researchers on accounting subjects with service company accounting cycle material with the stages: Recording transactions/documents into general journals (General Entries) and posting from general journals to general ledgers (General Ledger), there is an increase in student learning outcomes.  This increase can be seen from the percentage of student learning completeness individually and classically. This increase can be seen from the percentage of student learning completeness individually and classically. At the pre-cycle stage or before the implementation of the action, the average value of the class was 63.92 with the percentage of classical learning completeness only 35%. In the first cycle, it reached an average of 71.78 with a classical mastery level of 64.28%. While the learning outcomes in the second cycle reached an average of 77.85 with the classical learning completeness level reaching 92.85%. Likewise with student learning activities at every face-to-face online class. Student activity at the 1st meeting only reached a percentage of 56.25% with high criteria. At the second meeting it reached a percentage of 72.76% with high criteria, and at the third meeting it reached a percentage of 83.92% with very high criteria. Thus, student learning activities and student learning completeness in online classes during the COVID-19 pandemic increase by using the online class recitation learning model. With learning outcomes reaching 92.85% above the minimum learning completeness

Increasing the Energy Efficiency of Multi-robot Production Lines in the Automotive Industry

This paper quantitatively reports bout potential energy savings on robotic assembly lines for the automotive industry. The key aspect of the proposed approach is that both cell production rate and robot hardware limitations are consideredasstrictconstraints,sothatnoplantrevisionis needed. The methodology relies on: a)calculationofenergy- optimal trajectories, by means of time scaling, concerning the robots’ motion from the last process point to the home positions; b)reduction o f the energy consumption vi aearlier release of the actuator brake whentherobotsarekeptstationary. Simulation results arepresented,whicharebasedontheproductiontiming characteristicsmeasuredonarealplant

Abseits. Identitätsrealitäten und Integrationshürden jüdischstämmiger Zuwanderer in Bingen am Rhein

Studierende der Katholischen Hochschule Mainz haben 2011 unter der Leitung von Prof. Dr. Eva Maria Schuster fünf im Zeitraum von 1971 bis 2004 im Erwachsenenalter nach Deutschland eingewanderte Mitglieder des 2008 gegründeten Vereins „TIFTUF – Förderverein für jüdisches Leben in Bingen heute“ über ihre Lebensgeschichten interviewt. Trotz der nicht repräsentativen, kleinen Gruppe – vor allem Zugewanderte aus Ländern der früheren Sowjetunion – zeigen sich in den Berichten der Befragten Belastungen in Identitätsrealitäten und Integrationshürden, die sie mit vielen jüdischstämmigen Zuwanderern in Deutschland teilen. Aufgrund der geringen Fallzahl und der damit verbundenen leichten Identifizierbarkeit werden die Ergebnissen keiner bestimmten Person zugeordnet oder unpräzise Formulierungen gewählt, wie z. B. Herkunftsland ohne die genaue Angabe des Landes. (...

Rotating Boson Stars and Q-Balls

We consider axially symmetric, rotating boson stars. Their flat space limits represent spinning Q-balls. We discuss their properties and determine their domain of existence. Q-balls and boson stars are stationary solutions and exist only in a limited frequency range. The coupling to gravity gives rise to a spiral-like frequency dependence of the boson stars. We address the flat space limit and the limit of strong gravitational coupling. For comparison we also determine the properties of spherically symmetric Q-balls and boson stars.Comment: 22 pages, 18 figure

Heritability of testosterone levels in 12-year-old twins and its relation to pubertal development

The aim of this study was to estimate the heritability of variation in testosterone levels in 12-year-old children, and to explore the overlap in genetic and environmental influences on circulating testosterone levels and androgen dependent pubertal development. Midday salivary testosterone samples were collected on two consecutive days in a sample of 183 unselected twin pairs. Androgen induced pubertal development was assessed using self report Tanner scales of pubic hair development (boys and girls) and genital development (boys). A significant contribution of genetic effects to the variance in testosterone levels was found. Heritability was approximately 50% in both boys and girls. The remaining proportion of the variance in testosterone levels could be explained by non-shared environmental influences. The relatively high correlation between testosterone levels of opposite sex dizygotic twins suggests that sex differences in genes influencing variation in testosterone levels have not yet developed in pre- and early puberty. Variance in pubertal development was explained by a large genetic component, moderate shared environmental influences, and a small non-shared environmental effect. Testosterone levels correlated moderately (r = .31) with pubertal development; the covariance between testosterone levels and pubertal development was entirely accounted for by genetic influences

Transfer of Large-Scale Two-Dimensional Semiconductors:Challenges and Developments

Two-dimensional (2D) materials offer opportunities to explore both fundamental science and applications in the limit of atomic thickness. Beyond the prototypical case of graphene, other 2D materials have recently come to the fore. Of particular technological interest are 2D semiconductors, of which the family of materials known as the group-VI transition metal dichalcogenides (TMDs) has attracted much attention. The presence of a bandgap allows for the fabrication of high on-off ratio transistors and optoelectronic devices, as well as valley/spin polarized transport. The technique of chemical vapour deposition (CVD) has produced high-quality and contiguous wafer-scale 2D films, however, they often need to be transferred to arbitrary substrates for further investigation. In this Review, the various transfer techniques developed for transferring 2D films will be outlined and compared, with particular emphasis given to CVD-grown TMDs. Each technique suffers undesirable process-related drawbacks such as bubbles, residue or wrinkles, which can degrade device performance by for instance reducing electron mobility. This Review aims to address these problems and provide a systematic overview of key methods to characterize and improve the quality of the transferred films and heterostructures. With the maturing technological status of CVD-grown 2D materials, a robust transfer toolbox is vital

Contraceptive Implanon: Why do GPs get asked to remove it early?

Nineteen women aged 18 to 39 years of age from four Coast City Country GP Training practices were interviewed regarding their experiences with Implanon and the reasons for early removal. All participants were in relationships and approximately half had children

Edge Phonon Excitations in a Chiral Self-Assembled Supramolecular Nanoribbon

By design, coupled mechanical oscillators offer a playground for the study of crystalline topology and related properties. Particularly, non-centrosymmetric, supramolecular nanocrystals feature a complex phonon spectrum where edge modes may evolve. Here we show, employing classical atomistic calculations, that the edges of a chiral supramolecular nanoribbon can host defined edge phonon states. We suggest that the topology of several edge modes in the phonon spectrum is nontrivial and thermally insulated from bulk states. By means of molecular dynamics, we excite a supramolecular bond to launch a directional excitation along the edge without considerable bulk or back-propagation. Our results suggest that supramolecular monolayers can be employed to engineer phonon states that are robust against backscattering, toward supramolecular thermal waveguides, diodes, and logics

A Serpin shapes the extracellular environment to prevent influenza A virus maturation

Interferon-stimulated genes (ISGs) act in concert to provide a tight barrier against viruses. Recent studies have shed light on the contribution of individual ISG effectors to the antiviral state, but most have examined those acting on early, intracellular stages of the viral life cycle. Here, we applied an image-based screen to identify ISGs inhibiting late stages of influenza A virus (IAV) infection. We unraveled a directly antiviral function for the gene SERPINE1, encoding plasminogen activator inhibitor 1 (PAI-1). By targeting extracellular airway proteases, PAI-1 inhibits IAV glycoprotein cleavage, thereby reducing infectivity of progeny viruses. This was biologically relevant for IAV restriction in vivo. Further, partial PAI-1 deficiency, attributable to a polymorphism in human SERPINE1, conferred increased susceptibility to IAV in vitro. Together, our findings reveal that manipulating the extracellular environment to inhibit the last step in a virus life cycle is an important mechanism of the antiviral response