Improving EFL Learners Language Written Production Using Subtitled Videos

English as a Foreign Language (EFL) Learners tend to produce their speech or written production as they are associated with what they see and what they hear. So, they are able and desired to give comment spontaneously after watching and listening to them. Producing written language can, as a matter of fact, be detected from learners\u27 fluency, accuracy and complexity. This article endeavors to elaborate written language production done by university students by using English subtitled videos. Two intact groups were assigned to accomplish two different tasks; that is, one group watched the video with subtitle and the other one without subtitle. The result of the study reveals that learners who carry out the tasks of watching video with subtitle improve their ability in written production in terms of fluency and accuracy regardless to complexity

Tin Oxide Dependence of the CO₂ Reduction Efficiency on Tin Electrodes and Enhanced Activity for Tin/Tin Oxide Thin-Film Catalysts

The importance of tin oxide (SnO_<i>x</i>) to the efficiency of CO₂ reduction on Sn was evaluated by comparing the activity of Sn electrodes that had been subjected to different pre-electrolysis treatments. In aqueous NaHCO₃ solution saturated with CO₂, a Sn electrode with a native SnO_<i>x</i> layer exhibited potential-dependent CO₂ reduction activity consistent with previously reported activity. In contrast, an electrode etched to expose fresh Sn⁰ surface exhibited higher overall current densities but almost exclusive H₂ evolution over the entire 0.5 V range of potentials examined. Subsequently, a thin-film catalyst was prepared by simultaneous electrodeposition of Sn⁰ and SnO_<i>x</i> on a Ti electrode. This catalyst exhibited up to 8-fold higher partial current density and 4-fold higher faradaic efficiency for CO₂ reduction than a Sn electrode with a native SnO_<i>x</i> layer. Our results implicate the participation of SnO_<i>x</i> in the CO₂ reduction pathway on Sn electrodes and suggest that metal/metal oxide composite materials are promising catalysts for sustainable fuel synthesis

Aqueous CO₂ Reduction at Very Low Overpotential on Oxide-Derived Au Nanoparticles

Carbon dioxide reduction is an essential component of many prospective technologies for the renewable synthesis of carbon-containing fuels. Known catalysts for this reaction generally suffer from low energetic efficiency, poor product selectivity, and rapid deactivation. We show that the reduction of thick Au oxide films results in the formation of Au nanoparticles (“oxide-derived Au”) that exhibit highly selective CO₂ reduction to CO in water at overpotentials as low as 140 mV and retain their activity for at least 8 h. Under identical conditions, polycrystalline Au electrodes and several other nanostructured Au electrodes prepared via alternative methods require at least 200 mV of additional overpotential to attain comparable CO₂ reduction activity and rapidly lose their activity. Electrokinetic studies indicate that the improved catalysis is linked to dramatically increased stabilization of the CO₂^•– intermediate on the surfaces of the oxide-derived Au electrodes

Upaya Badan Keswadayaan Masyarakat Dalam Pemberdayaan Masyrakat ( Studi Pada Kantor Kelurahan Tanjungrejo,Sukun Kota Malang)

Poverty in Indonesia is need to solve immediately. One of method to alleviate poverty is to empower society. Government program to solve poverty is PNPM. It refer to Ministry Decree Society Welfare Department as Team Leader of Poverty Alleviation No. 25/KEP/MENKO/KESRA/VII/2007 on 30 Juli 2007. The runner of PNPM is BKM (Badan Keswadayaan Masyarakat / Society Epowerment Department). Tanjungrejo Village has run PNPM by BKM, but based on BPS database, Tanjungrejo Village has the most poor residents in Malang City. As this research goal, focus in this research is (1) BKM efforts in Tanjungrejo Village as (a) Institution brace b) effort to build link cooperation c) effort as mediator and facilitator d) effort in capital provider. (2) Empowerment support factor and empowerment resistor factor of BKM Tanjungrejo Village Sukun, Malang City. This research is cualitative research with deskriptif method. Data collected by interview, observation, and dokumentation. Data analysis shows that: (1) BKM effort in Tanjungrejo Village a) Institution Brace by human resources development by training. b) link cooperation building with internal and eksternal part in Tanjungrejo Village. c) Effort as mediator and facilitator by accompanying people for empowerment. d) Effort as capital provider and utilities by giving the capital to increase economy. (2) Empowerment support factor of BKM Tanjungrejo is having professional coordinator, the good cooperation with other society institution and high support from society. Empowerment resistor factor is member\u27s personal activity so the duty is not optimally run, and many stump on loan payment so other program become difficult to continue. BKM Tanjungrejo\u27s effort to increase members capacity is optimal enough. Good cooperation between BKM member become one of the indicator in the goal. The goal is to alleviate poverty in Tanjungrejo Village. Yet consistent training is require for BKM member so they can have more commitment on their duty. The goverment should looking for business chance to increase economy so society can be independent

X‑ray Insights into Formation of −O Functional Groups on MXenes: Two-Step Dehydrogenation of Adsorbed Water

Engineered MXene surfaces with more −O functional groups are feasible for realizing higher energy density due to their higher theoretical capacitance. However, there have been only a few explorations of this regulation mechanism. Investigating the formation source and mechanism is conducive to expanding the adjustment method from the top-down perspective. Herein, for the first time, the formation dynamics of −O functional groups on Mo2CTx are discovered as a two-step dehydrogenation of adsorbed water through in situ near-ambient-pressure X-ray photoelectron spectroscopy, further confirmed by ab initio molecular dynamics simulations. From this, the controllable substitution of −F functional groups with −O functional groups is achieved on Mo2CTx during electrochemical cycling in an aqueous electrolyte. The obtained Mo2CTx with rich −O groups exhibits a high capacitance of 163.2 F g –1 at 50 mV s –1, together with excellent stability. These results offer new insights toward engineering surface functional groups of MXenes for many specific applications

X‑ray Insights into Formation of −O Functional Groups on MXenes: Two-Step Dehydrogenation of Adsorbed Water

Engineered MXene surfaces with more −O functional groups are feasible for realizing higher energy density due to their higher theoretical capacitance. However, there have been only a few explorations of this regulation mechanism. Investigating the formation source and mechanism is conducive to expanding the adjustment method from the top-down perspective. Herein, for the first time, the formation dynamics of −O functional groups on Mo2CTx are discovered as a two-step dehydrogenation of adsorbed water through in situ near-ambient-pressure X-ray photoelectron spectroscopy, further confirmed by ab initio molecular dynamics simulations. From this, the controllable substitution of −F functional groups with −O functional groups is achieved on Mo2CTx during electrochemical cycling in an aqueous electrolyte. The obtained Mo2CTx with rich −O groups exhibits a high capacitance of 163.2 F g –1 at 50 mV s –1, together with excellent stability. These results offer new insights toward engineering surface functional groups of MXenes for many specific applications

DataSheet1_The optimal first-line treatment for patients with left-sided RAS wild-type metastatic colorectal cancer: Double-drug regimen or triple-drug regimen therapy.docx

There are many treatments for metastatic colorectal cancer (mCRC). Among them, uncertainty remains especially concerning the clinical benefit of different regimens for left-sided RAS wild-type (WT) mCRC in the triple-drug therapy era. No studies have been conducted to answer this critical clinical issue. We performed a comprehensive analysis of published data and real-world data. First, we conducted analyses of the published trials to show the landscape of efficacy and safety in the treatments of left-sided RAS WT mCRC. Then, we initiated a multicenter real-world study as the validation dataset. This study included six published randomized controlled trials (RCTs) and a total of 1925 patients. The double-drug regimen plus cetuximab/panitumumab (D + C/P) achieved the longest overall survival (OS) in patients with left-sided mCRC (HR = 0.74, 95%CI: 0.57–0.98), while triple-drug regimen with bevacizumab (T + B, HR = 1.1, 95%CI: 0.63–2.0), compared with double-drug with bevacizumab (D + B). The D + C/P had the highest overall response rate (ORR) in patients with left-sided mCRC (OR = 1.8, 95%CI: 0.89–3.8), while T + B (OR = 1.8, 95%CI: 0.70–4.8), compared with D + B. The multicenter real-world cohort showed the double-drug regimen plus cetuximab had longer progression-free survival (PFS) in left-sided mCRC patients than the triple-drug regimen with bevacizumab. The safety analysis showed the incidence of the adverse events (grade≥3) in the triple-drug therapy plus bevacizumab was higher than that in the double-drug therapy plus cetuximab/panitumumab. This work demonstrates the ranking of three regimens for therapeutic efficacy and safety in patients with left-sided RAS WT mCRC. The double-drug regimen plus cetuximab/panitumumab appears more effective and safer than double-drug and triple-drug based regimens with bevacizumab. Further trials and cohort analyses on this topic would increase confidence in these results.</p