62 research outputs found
PENERAPAN MODEL PEMBELAJARAN KOOPERATIFTIPE THINK PAIR SHARE UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI KOMPOSISI DUA FUGSI DI KELAS X IPA 5 SMA NEGERI 7 PALU
No full textMasalah utama dalam penelitian ini yaitu rendahnya hasil belajar siswa pada materi komposisi dua fungsi hal ini disebabkan karena siswa kurang memahami konsep dalam menentukan komposisi dua fungsi, sehingga siswa mudah lupa dengan rumus menentukan komposisi dua fungsi. Selain itu, kurangnya pemahaman siswa pada materi prasyarat dari materi komposisi dua fungsi, yaitu materi tentang aljabar fungsi, serta sebagian besar siswa kurang aktif selama mengikuti pembelajaran. Tujuan penelitian ini adalah untuk memperoleh deskripsi tentang penerapan model pembelajaran kooperatif tipe TPS yang dapat meningkatkan hasil belajarar siswa pada materi komposisi dua fungsi di kelas X IPA 5 SMA Negeri 7 Palu tahun ajaran 2018/2019 berjumlah 33 orang siswa yang terdiri dari 14 laki-laki dan 19 perempuan. Jenis penelitian ini adalah penelitian tindakan kelas. Desain penelitian mengacu pada model Kemmis dan Mc. Taggart yang terdiri dari empat komponen, yaitu (1) perencanaan, (2) pelaksanaan tindakan, (3) observasi dan (4) refleksi. Penelitian ini dilakukan dalam dua siklus. Data Hasil penelitian menunjukan pada tes akhir siklus I terdapat 15 siswa tuntas dan 17 siswa tidak tuntas berikut ketuntasan belajar klasikal mencapai 46,87%, Sedangkan pada siklus II terdapat 26 siswa tuntas dan 5 siswa tidak tuntas berikut ketuntasan belajar klasikal mencapai 83,85%. Jadi dapat disimpulkan bahwa penerepan model pembelajaran kooperatif tipe Think Pair Share dapat meningkatkan hasil belajar siswa kelas X IPA 5 SMA Negeri 7 Palu pada materi komposisi dua fungsi, dengan tahapannya yaitu (1) pendahuluan, (2) think, (3) pair, (3) share, dan (5) penghargaan
A Slacks-Based Measure of Efficiency in Two-Stage Data Envelopment Analysis
No full textAbstract As a non-parametric technique, Data Envelopment Analysis (DEA) evaluates the relative efficiency of peer decision making units (DMUs) that have multiple inputs and outputs. In many situations, DMUs have a two-stage structure, where * Corresponding author. E-mail address: [email protected] (A. Ashrafi) 1436 A. Ashrafi, A. B. Jaafar, L. S. Lee and M. R. Abu Bakar the first stage uses inputs to produce outputs that then become the inputs to the second stage. The first stage outputs are called "intermediate products." In recent years, a great number of DEA studies have focused on developing the two-stage processes, so that researchers, by using radial DEA models, have proposed new models for evaluating the efficiency of two-stage processes. However, because of the existence of intermediate measures, these models do not provide comprehensive information about the efficiency frontier and the projections of inefficient DMUs. This paper introduces a non-radial model in the slacks-based measure (SBM) framework for two-stage production processes that considers the series relationship between two stages. Unlike the radial two-stage DEA models, the new approach enables us to determine efficient projections for inefficient DMUs within the framework of two-stage DEA. An example from the literature is applied to clarify the model
Effect of water deficit and foliar application of amino acids on growth and yield of eggplant irrigated by two drip systems under greenhouse conditions
No full textSaabunud / Received 22.08.2020 ; Aktsepteeritud / Accepted 27.10.2020 ; Avaldatud veebis / Published online 27.10.2020 ; Vastutav autor / Corresponding author: Jaafar Hamdi e-mail: [email protected] deficit in semiarid areas limits eggplant (Solanum melongena L.) production and growth indicators. Suitable drip irrigation system and foliar application of amino acids may help overcome water deficit. In this work, the effects of drip irrigation system [Grand flow regulators (GR) and T-Tape], water deficit (50, 75, 100% based on field capacity) and foliar application of amino acids at 0, 100 and 200 mg L–1 on water relation of leaf's, yield and field water use efficiency (WUEf) of eggplant were studied. The experiments were arranged in a split-split plot design within a completely randomized distribution each repeated three times. GR irrigation system treatment produced the highest relative water content (RWC), most yield (TY), WUEf and the lowest of water saturation deficit (WSD) which were 74.71%, 6.50%, 5.97 t ha–1, 2.11 kg m–3 and 23.09%, respectively. The lowest water uptake capacity (WUC) and relative membrane permeability (RMP) was obtained in T-Tape irrigation system treatment (0.43% and 59.45%, respectively). The 100% irrigation level revealed higher RWC (79.32%), WSD (7.38%), most TY (6.93 t ha–1), the least of WSD (18.00%), WUC (0.28%) and RMP (39.40%). The maximum of WUEf (2.37 kg m–3) was obtained from 50% irrigation level. The foliar application of 200 mg L–1 Amino acids rate resulted in significantly maximum RWC (81.50%), WRC (7.19%), TY (6.75 t ha–1) and WUEf (2.51 kg m–3) and least WSD (15.88%), WUC (0.33%), RMP (52.02%). GR drip irrigation system is best for water use efficiency; 200 mg L–1 Amino acids produced the best response for most studied traits
The current state of patient safety culture in lebanese hospitals: A study at baseline
No full textObjective: The objective of this study is to conduct a baseline assessment of patient safety culture in Lebanese hospitals. Design: The study adopted a cross-sectional research design and utilized the hospital survey on patient safety culture (HSOPSC). Setting: Sixty-eight Lebanese hospitals participated in the study (54percent of all hospitals). Participants: A total of 6807 hospital employees participated in the study including hospital-employed physicians, nurses, clinical and non-clinical staff, and others. Main Outcome Measures: The HSOPSC measures 12 composites of patient safety culture. Two of the composites (frequency of events reported and overall perception of safety), in addition to questions on patient safety grade and number of events reported, are the four outcome variables. Results: Survey respondents were primarily employed in medical and surgical units. The dimensions with the highest positive ratings were teamwork within units, hospital management support for patient safety, and organizational learning and continuous improvement, while those with lowest ratings included staffing and non-punitive response to error. Approximately 60percent of respondents reported not completing any event reports in the past 12 months and over 70percent gave their hospitals an 'excellent-very good' patient safety grade. Bivariate and multivariate analysis revealed significant differences across hospitals of different size and accreditation status. Conclusions: Study findings provide evidence that can be used by policy makers, managers and leaders who are able to create the culture and commitment needed to identify and solve underlying systemic causes related to patient safety. © The Author 2010. Published by Oxford University Press in association with the International Society for Quality in Health Care; all rights reserved.Baldwin DC, 2003, ACAD MED, V78, P1154, DOI 10.1097-00001888-200311000-00018; Beyer M., 2007, ABC PATIENT SAFETY, P16; Blegen Mary A, 2009, J Patient Saf, V5, P139, DOI 10.1097-PTS.0b013e3181b53f6e; Bodur S, 2009, INT J QUAL HEALTH C, V21, P348, DOI 10.1093-intqhc-mzp035; Bowling A, 1997, RES METHODS HLTH; Canadian Patient Safety Institute, 2009, SAF COMP ENH PAT SAF; DEILKAS E, 2008, BMC HEALTH SERV RES, V8, P230; El- Jardali F, 2003, THESIS CARLETON U CA; El-Asady R., 2009, MEDH DAM SYR; El-Jardali F., 2008, QUALITY MANAGEMENT A; El-Jardali F, 2007, LEBAN MED J, V55, P39; El-Jardali F, 2008, INT J QUAL HEALTH C, V20, P363, DOI 10.1093-intqhc-mzn023; Field A., 2009, DISCOVERING STAT USI; FIRTHCOZENS J, 2007, ABC PATIENT SAFETY, P4; Nieva V. F., 2003, QUAL SAF HLTH CAR S2, V12, pii17, DOI DOI 10.1136-QHC.12.SUPPL_2.II17; Pomey Marie-Pascale, 2004, Int J Health Care Qual Assur Inc Leadersh Health Serv, V17, P113, DOI 10.1108-09526860410532757; Pronovost P, 2005, QUAL SAF HEALTH CARE, V14, P231, DOI 10.1136-qshc.2005.015180; Smits M, 2009, QUAL SAF HEALTH CARE, V18, P292, DOI 10.1136-qshc.2007.025965; Sorra J, 2009, AHRQ PUBLICATION, V09-0030; Sorra J.S., 2004, AHRQ PUBLICATION; VanGeest JB, 2003, 3 NAT PAT SAF FDN; WHO Collaborating Centre for Patient Safety Solutions, 2007, PAT SAF SOL; World Alliance for Patient Safety, 2008, SUMM EV PAT SAF IMPL25202
Preliminary comparison of Fe/SiC sintered using microwave hybrid and conventional sintering
No full textFeasibility study of utilizing jatropha curcas oil as bio-diesel in an oil firing burner system
No full textMitigation of nitric oxide and carbon monoxide emissions from burner system utilizing swirling flow
No full textA scalable and chemical-free strategy for antifouling ultrafiltration PVDF membranes via hydrophilic macromolecular surface modification
No full textFouling is a major challenge in oily wastewater treatment, leading to increased operational costs and reduced membrane performance. This study aims to develop a modified PVDF ultrafiltration (UF) membrane with enhanced antifouling properties using hydrophilic surface-modifying macromolecules (LSMMs) through a simple blending and phase inversion process. PVDF membranes were fabricated by incorporating LSMMs into the dope solution. During phase inversion, LSMMs spontaneously migrated to the membrane-air interface, forming a stable hydrophilic and negatively charged surface layer. The membranes were characterized for their permeability, oil rejection, antifouling performance, and long-term stability under continuous operation. The optimized L0.50 T-PVDF membrane exhibited a 58% increase in pure water flux (880 L m−2 h−1) and 99.9% oil rejection. Irreversible fouling was eliminated (Rir = 0%), with a 100% flux recovery ratio (FRR) sustained over five cleaning cycles. Continuous 24 h filtration maintained a stable permeate flux of 775 L m−2 h−1, indicating excellent durability. LSMM-induced surface modification effectively mitigates membrane fouling by preventing pore blockage and foulant adhesion, eliminating the need for chemical cleaning. This approach offers a sustainable, scalable, and cost-effective solution for industrial oily wastewater treatment. Future work will explore pilot-scale validation, LSMM formulation optimization, and performance evaluation under varied operating conditions.First author (Komathi Kannathasan) would like to express gratitude to the Ministry of Higher Education, Malaysia under HICoE grant, R.J090301.7851.4J657 and Universiti Teknologi Malaysia for the financial funding under Hi-Tech (F4) grant Q.J130000.4609.00Q14.
Open access funding provided by The Ministry of Higher Education Malaysia and Universiti Teknologi Malaysia. Ministry of Higher Education,R.J090301.7851.4J657,Juhana Jaafar,Research Management Centre,Universiti Teknologi Malaysia,Q.J130000.4609.00Q14,Juhana Jaafa
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