bluuebunny/crossref_metadata_2025 huggingface dataset:
A web-based decision support system for smart dam operations using weather forecasts
Authors: Ahmad Shahryar Khalique , Hossain Faisal
Published: July 2019

A web-based open-source decision support system (DSS) was developed to facilitate real-world engagement with dam-operating agencies in the decision-making process involving atmospheric modeling, hydrologic modeling, and web technology. The development process was decoupled into the container (frontend) and the modeling framework for the content (backend), to arrive at an intelligent system that improves the productivity and independent reuse of each component. The backend framework uses the weather forecasts from Numerical Weather Prediction models, downscales to a finer resolution, and simulates hydrologic and data-based artificial neural network models to optimize operations. The frontend architecture disseminates the forecasted meteorological variables, reservoir inflow, optimized operations, and retrospective weekly assessment of forecasts and hydropower benefits. The framework is automated and operationalized over the Detroit dam (Oregon) to generate the daily optimized release decisions. However, backend scripts and frontend elements are flexible and customizable enough that the DSS can be reproduced for other dams. The optimization of reservoir operations based on weather forecasts results in significant additional hydropower benefit without compromising other objectives when compared to the conventional operations. More importantly, the platform helps visualize for the dam operator how much more ‘smarter’ operations can be if weather forecasts and open-source technology are used.
ANALYZING METHODS OF ASSESSING SOCIAL AND ECONOMIC EFFICIENCY OF SPORTS CENTERS IN RUSSIAN UNIVERSITIES
Authors: Solovev Petr A.
Published: June 2019

The article studies factors affecting seriously the profitability of sports centers. The author designed a system of indicators, which can help assess their social and economic efficiency. It is shown that achievement of high figures of social and economic efficiency of sports infrastructure functioning is possible only by using effective managerial tools. Effectiveness can be estimated by comparison of the obtained effect of a certain type of activity with raised resources. Specificity of the proposed system of indicators is its potential to estimate the efficiency of the current sports centers’ work and at the same time to find negative factors influencing their functioning. Indicators proposed by the author can be used in complex appraisal of centers’ work. The information collected with their help can help identify drawbacks in their operation and, consequently take adequate managerial decisions. In order to analyze satisfaction with services of the sp[orts center it is proposed to use a questionnaire. On the basis of the survey results a formula of assessing the general satisfaction of clients was put forward. The recommended indicators can be used in the complex appraisal of the sports center work.
THE DIAGRAM OF MOODS: THEORY AND REALITY
Authors: Bogatyrev Semen Yu.
Published: June 2019

The article studies the issue of identifying business market value in deals on merges and acquisitions, which is connected with identifying the discount rate by using the method of cash flows discounting. During the post-crisis period after 2009 not only Russian value analysts but also overseas ones have been facing this problem. Only now we can observe a sharp increase in the Federal Reserve System rate, though not long ago valuers did not know how to build the discount rate with the negative figures of the interest rate in Europe and its minimum figures in the US. This research investigates the problem from the point of view of behavioral finance. Crisis and prosperous years are analyzed in view of the emotional background, which gives a certain line in shaping the mood of M & A market participants. To solve the problem value assessment was carried out by the method of cash flow discounting of a great number of Russian banks put up for sale and later quantitative methods of finance decision-making were applied for processing numerous findings. The novelty of obtained findings is connected with the fact that today methods of behavioral research are not used in finance practice and in scientific developments in Russia. They are rather limited abroad. Theoretical works, which formed the foundation for the empiric research, were used earlier by foreign scientists at the stock exchange. Such research is a pioneer on the Russian M & A market.
DEVELOPING ECONOMY OF INFORMATION SOCIETY IN RUSSIA
Authors: Kalenov Oleg E.
Published: June 2019

Today we can observe the trend of the rising role of knowledge and intangible assets, which is stipulated by the new stage of economic development, i.e. economy of information society. The issue of the information society development is directly connected with technological innovation. The article shows the essence of information society, its principle determining factors, including human capital, innovation potential, informationcommunication infrastructure, information security, information environment, etc. The author analyzes dynamics of these factors in our country and makes international comparisons. It brings us to the conclusion that Russia is lagging behind the world leaders by key indicators. Apart from that, developing economy of information society in our country is mainly identified with the use of information technologies without taking into account social components. It is underlined that the essential role in this process should be attributed to institute of trust. The author puts forward the hypothesis about future changes in economy and society, in production processes and in man himself and proposes a set of steps aimed at intensifying the process of developing economy of information society in the country and discusses the related prospects.
Treatment of Skin Disorders with Aloe Materials
Authors: Svitina Hanna , Swanepoel Roan , Rossouw Jacques , Netshimbupfe Happiness , Gouws Chrisna , Hamman Josias
Published: July 2019

The skin is the largest organ and functions as a barrier to protect the underlying tissues against the elements and pathogens, while also fulfilling many physiological roles and biochemical functions such as preventing excessive water loss. Skin disorders vary greatly in terms of origin, severity, symptoms and affect persons of all ages. Many plants have been used for medicinal purposes since ancient times including the treatment of skin disorders and diseases. Aloe represents one of the earliest medicinal plant species mentioned in antique scriptures and even in rock art dating back thousands of years. Different Aloe species and materials have been used in the prevention and treatment of skin related disorders. Aloe vera is the most commonly used Aloe species for medicinal purposes. Some of the most prominent skin related applications and disorders that Aloe materials have been investigated for are discussed in this paper, which include cosmetic, radiation, cancer, wound and antimicrobial applications. Both in vitro and in vivo studies are included in the discussions of this paper and comprehensive summaries of all these studies are given in tables in each section. Although some contradictory results were obtained among studies, certain Aloe materials have shown excellent efficacy and exhibited potential for the treatment of skin related disorders and cosmetic applications.
1,4-Diazepines: A Review on Synthesis, Reactions and Biological Significance
Authors: Rashid Muhammad A. , Ashraf Aisha , Rehman Sahibzada S. , Shahid Shaukat A. , Mahmood Adeel , Faruq Muhammad
Published: July 2019

Background:

1,4-Diazepines are two nitrogen containing seven membered heterocyclic compounds and associated with a wide range of biological activities. Due to its medicinal importance, scientists are actively involved in the synthesis, reactions and biological evaluation of 1,4-diazepines since number of decades.

Objective:

The primary purpose of this review is to discuss the synthetic schemes and reactivity of 1,4- diazepines. This article also describes biological aspects of 1,4-diazepine derivatives, that can be usefully exploited for the pharmaceutical sector.

Conclusion:

This review summarizes the abundant literature on synthetic routes, chemical reactions and biological attributes of 1,4-diazepine derivatives. We concluded that 1,4-diazepines have significant importance due to their biological activities like antipsychotic, anxiolytic, anthelmintic, anticonvulsant, antibacterial, antifungal and anticancer. 1,4-diazepine derivatives with significant biological activities could be explored for potential use in the pharmaceutical industries.
Lead Molecules as Novel Aromatase Inhibitors: In Silico De Novo Designing and Binding Affinity Studies
Authors: Banjare Laxmi , Verma Sant Kumar , Jain Akhlesh Kumar , Thareja Suresh
Published: July 2019

Background:

Aromatase inhibitors emerged as a pivotal moiety to selectively block estrogen production, prevention and treatment of tumour growth in breast cancer. De novo drug design is an alternative approach to blind virtual screening for successful designing of the novel molecule against various therapeutic targets.

Objective:

In the present study, we have explored the de novo approach to design novel aromatase inhibitors.

Method:

The e-LEA3D, a computational-aided drug design web server was used to design novel drug-like candidates against the target aromatase. For drug-likeness ADME parameters (molecular weight, H-bond acceptors, H-bond donors, LogP and number of rotatable bonds) of designed molecules were calculated in TSAR software package, geometry optimization and energy minimization was accomplished using Chem Office. Further, molecular docking study was performed in Molegro Virtual Docker (MVD).

Results:

Among 17 generated molecules using the de novo pathway, 13 molecules passed the Lipinski filter pertaining to their bioavailability characteristics. De novo designed molecules with drug-likeness were further docked into the mapped active site of aromatase to scale up their affinity and binding fitness with the target. Among de novo fabricated drug like candidates (1-13), two molecules (5, 6) exhibited higher affinity with aromatase in terms of MolDock score (-150.650, -172.680 Kcal/mol, respectively) while molecule 8 showed lowest target affinity (-85.588 Kcal/mol).

Conclusion:

The binding patterns of lead molecules (5, 6) could be used as a pharmacophore for medicinal chemists to explore these molecules for their aromatase inhibitory potential.
An Overview of Acrylonitrile Production Methods: Comparison of Carbon Fiber Precursors and Marketing
Authors: Firouzi Ehsan , Hajifatheali Hassan , Ahmadi Ebrahim , Marefat Mohammadreza
Published: July 2019

Acrylonitrile is a key precursor in the production of a wide range of products in the chemical
industries. The major products of acrylonitrile include acrylonitrile butadiene styrene resin,
acrylic fibers, and adiponitrile. The demand for the roduction of acrylonitrile is affected by the global
economy but because of the development of living standards; the demand for producing acrylonitrile
and its derivations are significantly increasing. So in 2016, China alone produced 32% of the world’s
acrylonitrile, and its production is expected to have a 55% increase in 2021. Acrylonitrile and its derivations
have wide applications in different industries like car manufacturing, electronics, aerospace,
and textile. Considering the importance of the acrylonitrile precursor in the current world, in this
study, we discuss and investigate its production processes, the obtained copolymers, and polyacrylonitrile
production and its application in the carbon fibers and compare it with other carbon fiber precursors
such as mesophase pitch and cellulose. We also focus on its marketing in the world.
Puerarin for OVX-Induced Postmenopausal Osteoporosis in Murine Model: Systematic Review and Meta-Analysis
Authors: He Baorong , Kong Lingbo , Yang Xiaobin , Zheng Haishi , Liu Yuan , Hao Dingjun
Published: July 2019

Aims/Background:

Ovariectomy (OVX)-induced murine model is widely used for postmenopausal
osteoporosis study. Our current study was conducted to systematically review and essentially
quantified the bone mass enhancing effect of puerarin on treating OVX-induced postmenopausal
osteoporosis in murine model.

Methods:

Literatures from PUBMED, EMBASE, and CNKI were involved in our searching strategy
by limited the inception date to January 9th, 2019. Moreover, the enhancing effect of puerarin on bone
mass compared to OVX-induced rats is evaluated by four independent reviewers. Finally, all the data
were extracted, quantified and analyzed via RevMan, besides that in our current review study, we assessed
the methodological quality for each involved study.

Results:

Based on the searching strategy, eight randomization studies were finally included in current
meta-analysis and systematic review. According to the data analysis by RevMan, puerarin could improve
bone mineral density (BMD); (eight studies, n=203; weighted mean difference, 0.05; 95% CI,
0.03-0.07; P<0.0001) using a random-effects model. There is no significant difference between puerarin
and estrogen (seven studies, n=184; weighted mean difference, 0.00; 95% CI, -0.01 to 0.00;
P=0.30).

Conclusions:

Puerarin showed upregulating effects on bone mass in OVX-induced postmenopausal
osteoporosis in murine model. More studies of the effect of puerarin on bone density in OVX animals
are needed.
Suicide in Parkinson’s Disease: A Systematic Review
Authors: Berardelli Isabella , Belvisi Daniele , Nardella Adele , Falcone Giulia , Lamis Dorian A. , Fabbrini Giovanni , Berardelli Alfredo , Girardi Paolo , Pompili Maurizio
Published: July 2019

:

Psychiatric disorders and suicide have been reported in patients suffering from Parkinson’s
disease. The aims of the present paper were to determine whether patients with Parkinson’s
disease have an increased rate of suicide and to identify the clinical features possibly associated
with suicide risk in Parkinson’s disease. We also reviewed the studies on suicide risk in Parkinson’s
disease in patients after deep brain stimulation. We performed a Medline, Excerpta Medica, PsycLit,
PsycInfo and Index Medicus search to identify all articles published on this topic from 1970 to
2019. The following search terms were used: suicide OR suicide attempt OR suicidal ideation OR
suicide risk AND Parkinson’s disease AND Parkinson’s disease and deep brain stimulation. The
studies we identified that assessed the suicide rate associated with Parkinson’s disease yielded contrasting
results, although an increase in suicidal ideation did emerge. The studies on the effect of
deep brain stimulation on suicide risk in Parkinson’s disease also reported mixed findings. Psychiatric
symptoms, including depression, appear to be associated with suicide risk in patients with Parkinson’s
disease undergoing medical and after surgical treatment. The studies reviewed suggest that
suicidal ideation is increased in Parkinson’s disease. Further longitudinal studies designed to assess
suicidality in this condition are still needed.
The Effect of Vitamin D3 Supplementation on Serum BDNF, Dopamine, and Serotonin in Children with Attention-Deficit/Hyperactivity Disorder
Authors: Seyedi Marzieh , Gholami Fatemeh , Samadi Mahsa , Djalali Mahmoud , Effatpanah Mohammad , Yekaninejad Mir Saeed , Hashemi Rezvan , Abdolahi Mina , Chamari Maryam , Honarvar Niyaz Mohammadzadeh
Published: July 2019

Background & Objective:

Attention-Deficit/Hyperactivity Disorder (ADHD) is one of the
most common psychiatric disorders in childhood. The exact etiology of this disease is unknown, but it
is believed to be related to the disorder of catecholaminergic and serotonergic systems. Also, serum
vitamin D levels in patients with ADHD is lower. Several studies have also shown the effect of vitamin
D on the synthesis pathways of dopamine, serotonin, and a number of neurotrophic factors. Therefore,
this study aimed to investigate the effect of vitamin D3 supplementation on serum levels of
Brain-Derived Neurotrophic Factor (BDNF), dopamine, and serotonin in school-aged children with
ADHD.

Methods:

Eighty-six children with ADHD were divided into two groups, based on randomized permuted
blocks. Patients received 2000 IU vitamin D/day or a placebo for 12 weeks. Serum levels of
BDNF, dopamine, serotonin, and 25-hydroxyvitamin D [25(OH)D] were measured at baseline and at
the end of the study.

Results:

Serum levels of 25(OH)D and dopamine significantly increased in the vitamin D group, compared
to the placebo group (p < 0.05). However, serum BDNF and serotonin levels did not change significantly.

Conclusion:

Vitamin D3 supplementation in children with ADHD can increase serum dopamine levels,
but further studies are needed to determine the effects of vitamin D on neurotrophic factors and serotonin.
Micronized Palmitoylethanolamide: A Post Hoc Analysis of a Controlled Study in Patients with Low Back Pain – Sciatica
Authors: Cruccu Giorgio , Stefano Giulia Di , Marchettini Paolo , Truini Andrea
Published: July 2019

Background:

Despite being widely prescribed, relatively few controlled trials have been
conducted on the class of neurotrophic/antinociceptive nutraceuticals. While performing a search in
the literature, we came across an old registration study on micronized palmitoylethanolamide in patients
with low back pain – sciatica by Guida and colleagues.

Methods:

We contacted the authors of the article and obtained all the original material, which allowed
us to reanalyze the study. We assessed its clinical relevance by calculating the numbers needed to treat
for pain (visual analog scale) and function (Roland-Morris Questionnaire). After excluding patients for
whom the information available was insufficient, we assigned each patient to one of the five categories
of increasing probability of neuropathic pain: pure lumbago, lumbago with projecting pain to surrounding
regions (e.g. gluteus or groin), lumbago with projecting pain to the thigh or leg, pure sciatica
and radiculopathy, and investigated any correlations (Spearman) between the improvement in pain and
function with these five classes.

Results:

Compared with placebo, palmitoylethanolamide 600 mg/die yielded a number needed to treat
of 1.7 (95% confidence interval: 1.4-2) for pain, and 1.5 (95% confidence interval: 1.4-1.7) for function.
The correlation between the five categories was highly significant for pain relief (P <0.0001),
though not significant for reduced dysfunction.

Conclusion:

Palmitoylethanolamide was extremely effective on pain and function in a large cohort of
patients with low back pain – sciatica. Although, the multiple mechanisms of action of palmitoylethanolamide
are ideal for mixed pain conditions such as low back pain – sciatica, the correlation between
pain relief and the likelihood of neuropathic pain suggests that this drug exerts a predominant action
on the neuropathic pain component.
THE ROLE OF EMPLOYEE MOTIVATION FACTOR ON ORGANIZATIONAL PERFORMANCE: A CASE STUDY OF EDUCATION SECTORS IN KURDISTAN
Authors: Abdulrahman Nawroz
Published: July 2019

The research examines the role of motivation factors on organizational performance and particularly education sectors in Erbil. The study aims to determine the factors employee motivation that the most has role in education sectorâ€™s outcome. Â A quantitative research method employed to find out the most and the least employee motivation factors. However, the researcher distributed hard copy of surveys to the both administrative and academic staffs of education sectors in Erbil. From 200 surveys only 189 surveys have been fulfilled correctly. The findings revealed that recognition is the most influence motivation factors on education sectorsâ€™ outcome on the other hand job security is the least most influence motivation factors on education sectorsâ€™ outcome.
FACTORS AFFECTING INTEREST RATE AND ITS RELATION WITH BANKSâ€™ PROFITABILITY
Authors: Ali Barzan Omar
Published: July 2019

The aim of this study is to investigate the factors influencing interest rates and its relationship with private banks profitability in Erbil. The research was conducted at private banks in Erbil. The researcher attempted to find out the most of significance factor that affects interest rates and its relationship with banks Profitability. However, the researcher gathered data from employees at different level of management at private banks in Erbil. The researcher distributed 300 questionnaires, but only 238 questionnaires were received from employees and been completed. The researcher used a quantitative research method to find out the most of significance factor that affects interest rates and its relationship with banks Profitability. The findings of multiple regression analysis revealed that the highest value was for economic growth, the B value =.812, this indicates that economic growth significantly and positively effects interest rates as a result maximize bankâ€™s Profitability.
Dynamical Link of Peat Fires in South Sumatra and the Climate Modes in the Indo-Pacific Region
Authors: Putra Raden , Lestari Deni Okta , Sutriyono Edy , Sabaruddin Sabaruddin , Iskandar Iskhaq
Published: July 2019

Peat fire is one of the environmental disasters occurring widespread during the dry season in South Sumatra. The region has long been recognized to have extensive peatland, hence it is considered as the vulnerable areas to fire. This study employs spatial analysis to evaluate the likely linked factors causing peat fire in the study area. Two interannual climate modes such as the El Niño – Southern Oscillation and Indian Ocean Dipole were considered to have affected the area with respect to climate anomaly at the 1995-2016 periods. This phenomenon was followed by the peat fire in many areas. There appears a close linkage between the occurrence of peat fires and climate anomaly. A number of hotspots tend to occur annually during the drought season. A significant number of hotspots took place during the 2006 pIOD and 2015 El Niño events due to a significant decrease in rainfall intensities.
MENINGKATKAN AKTIVITAS BELAJAR SISWA MENGGUNAKAN LKS BERBASIS INKUIRI TERBIMBING PADA PEMBELAJARAN LAJU REAKSI
Authors: Nismar Helma
Published: July 2019

Pendidikan modern lebih menitik beratkan pada aktivitas sejati, siswa belajar sambil bekerja. Keaktifan siswa sangat tergantung kepada dorongan atau motivasi yang timbul baik dari dalam diri maupun dari luar dirinya,  semakin tinggi dorongan yang timbul dalam diri seseorang akan semakin tinggi keaktifannya dalam belajar. Metode Inkuiri Terbimbing (Guided Inquiry) merupakan suatu kegiatan belajar yang melibatkan seluruh kemampuan siswa untuk mencari dan menyelidiki suatu permasalahan secara sistematis, logis, analitis, sehingga dengan bimbingan dari guru mereka dapat merumuskan sendiri penemuannya. Lembar Kerja Siswa (LKS) dapat meningkatkan aktivitas belajar siswa melalui proses berfikir dalam penanaman konsep selama proses pembelajaran berlangsung. Pada penelitian ini digunakan LKS berbasis inquiry terbimbing dalam mempelajari laju reaksi. Hasil penelitian menunjukan terdapat peningkatan persentase keaktifan siswa dari 46,67% pada siklus I menjadi 62,67% pada siklus II.
Table of Content
Authors: - - -
Published: June 2019

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PENGARUH MODEL LEARNING CYCLE TIPE 7E TERHADAP PEMAHAMAN KONSEP FISIKA SISWA KELAS VII SMP NEGERI 19 PALU
Authors: Nurmalasari Resky , Kade Amiruddin , Kamaluddin Kamaluddin
Published: July 2019

Penelitian ini bertujuan untuk mengetahui ada tidaknya  perbedaan pemahaman konsep fisika antara kelompok siswa yang mengikuti model learning cycle tipe 7E dengan  kelompok siswa yang mengikuti model direct instruction. Sampel penelitian ini adalah siswa kelas VII SMP Negeri 19 Palu yang terdiri dari 19 orang siswa kelas eksperimen yang diajar menggunakan model learning cycle tipe 7E dan 19 orang siswa kelas kontrol yang diajar menggunakan model direct instruction. Metode yang digunakan adalah metode eksperimen kuasi dan desain yang digunakan adalah nonequivalent pretest-posttest group design. Instrumen pemahaman konsep fisika berupa tes berbentuk pilihan ganda beralasan yang telah diuji validitas dan reliabilitasnya. Hasil analisis data menunjukan bahwa nilai rata-rata pemahaman fisika siswa yang mengikuti model learning cycle tipe 7E dan direct instruction masing-masing sebesar 57,50 dan 49,08. Hasil analisis data menunjukkan bahwa kedua sampel berasal dari populasi yang homogen. Pengujian hipotesis ini dilakukan dengan menggunakan program SPSS (Statical Product and Service Solution) yang berdasarkan uji Fisher (Uji F). Pengujian hipotesis dilakukan pada taraf signifikansi (α = 0,05). Hasil penelitian ini menunjukkan ada perbedaan pemahaman konsep fisika antara kelompok siswa yang mengikuti  model learning cycle tipe 7E dan kelompok siswa yang mengikuti model direct instruction (F=4,595 ; sig=0,039; sig0,05).
PENGARUH MODEL PEMBELAJARAN CREATIVE PROBLEM SOLVING TERHADAP KEMAMPUAN MEMECAHKAN MASALAH FISIKA PADA SISWA KELAS XI SMA NEGERI 4 PALU
Authors: Hariawan Hariawan , Kamaluddin Kamaluddin , Wahyono Unggul
Published: July 2019

Penelitian ini bertujuan menguji signifikansi pengaruh model pembelajaran creative problem solving terhadap kemampuan memecahkan masalah fisika yang dilihat dari perbedaan hasil postest di kelas eksperimen dan kelas kontrol. Desain penelitian adalah eksperimen kuasi dengan Pretest-posstest Equivalent Group Design. Populasi penelitian adalah seluruh siswa kelas XI IPA SMA Negeri 4 palu. Teknik pengambilan sampel adalah purposive sampling. Kelas XI IPA-A sebagai kelas eksperimen dan kelas XI IPA-F sebagai kelas kontrol. Instrumen digunakan berupa uraian tes. Analisis data menggunakan Uji t dua pihak pada taraf signifikansi 5% dan dk= 70 dengan uji prasyarat normalitas dan homogenitas. Hasil uji statistik diperoleh thitung = 3,18 dan ttabel= 1,99 dengan kriteria terima Ho jika -1,99< t <1,99 dan tolak H1 dalam hal lainnya. Nilai thitung berada diluar penerimaan Ho sehingga H1 diterima dengan kesimpulan terdapat pengaruh model pembelajaran creative problem solving yang signifikan terhadap kemampuan siswa dalam memecahkan  masalah fisika.
PENGARUH MODEL PEMBELAJARAN BERBASIS MASALAH (PBM) MENGGUNAKAN BAHAN AJAR BERBASIS E-MATERI TERHADAP PEMAHAMAN KONSEP FISIKA PADA SISWA KELAS X SMAN 1 BIROMARU
Authors: Hidayat Khaerul , Kade Amiruddin , Haeruddin Haeruddin
Published: July 2019

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran berbasis masalah menggunakan bahan ajar berbasis e-materi terhadap pemahaman konsep fisika siswa kelas X SMAN 1 Biromaru. Penelitian ini menggunakan bahan ajar e-materi. Desain penelitian yang digunakan adalah The Non Equivalen Pretest-Posttest Design. Populasi penelitian ini adalah seluruh siswa kelas X pada SMAN 1 Biromaru, pengambilan sampel dilakukan secara purposive sampling, diperoleh sampel pada penelitian ini yaitu kelas X Model1 sebagai kelas eksperimen dan Kelas X Model2 sebagai kelas kontrol. Instrumen yang digunakan pada penelitian ini adalah tes pemahaman konsep. Analisis data dilakukan dengan menggunakan program SPSS (Statical Product and Service Solution). Pengujian hipotesis didasarkan pada uji statistik yaitu Uji t untuk dua sampel independen dengan taraf signifikansi (α = 0,05). Kriteria yang digunakan yaitu jika signifikansi > 0,05 maka hipotesis 1 (H0) diterima dan hipotesis 2 (H1) ditolak sehingga dapat disimpulkan bahwa tidak terdapat perbedaan pemahaman konsep fisika antara kelas yang diajar dengan model pembelajaran berbasis masalah menggunakan bahan ajar berbasis e-materi dan kelas yang diajar dengan model pembelajaran langsung menggunakan bahan ajar berbasis e-materi atau sebaliknya jika signifikansi < 0,05. Berdasarkan hasil pengujian hipotesis posttest kelas kontrol dan ekperimen diperoleh signifikasi = 0,019 atau < 0,05. Dengan demikian H0 ditolak atau H1 diterima. Sehingga dapat disimpulkan bahwa terdapat perbedaan yang signifikan antara pemahaman konsep fisika kelas yang menggunakan model pembelajaran berbasis masalah dan kelas yang menggunakan model pembelajaran langsung.
Pengaruh Model Pembelajaran Predict, Observe And Explain terhadap Keterampilan Proses Sains Siswa Kelas X Sma Negeri 1 Balaesang
Authors: Zulaeha Zulaeha , Darmadi I Wayan , Werdhiana Komang
Published: July 2019

Abstrak - Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Predict, Observe and Explain (POE) keterampilan proses sains siswa pada materi kalor yang diajarkan dengan menggunakan model pembelajaran POE dengan pembelajaran konvensional. Jenis penelitian yang digunakan adalah kuasi eksperimen dengan desain The Non Equivalen Pretest-Posttest Design dengan menggunakan teknik purposive sampling diperoleh kelas XA sebagai kelas eksperimen dan kelas XB sebagai kelas kontrol.  Instrumen yang digunakan berupa tes keterampilan proses sains dalam bentuk tes esai berjumlah 8 soal. Analisis data dilakukan dengan teknik statistik uji-t satu pihak untuk menguji perbedaan rerata skor keterampilan proses sains siswa dengan signifikansi α = 0,05 dengan kriteria pengujian terima H0 jika thitung < ttabel untuk harga t lainya H0 ditolak. Berdasarkan hasil analisis data diperoleh nilai hasil thitung = 1,71 > ttabel = 1,66. Ini berarti bahwa nilai thitung berada di luar daerah penerimaan H0. Dengan demikian disimpulkan bahwa, terdapat pengaruh keterampilan proses sains  antara kelas yang mendapatkan pembelajaran menggunakan model pembelajaran POE dengan kelas yang mendapatkan pembelajaran konvensional. Kata Kunci: Model POE,  Keterampilan proses sains
Hubungan Kecerdasan Emosional Dengan Hasil Belajar IPA Siswa SMP Negeri 1 Palu
Authors: Defila Defila , Muslimin Muslimin , Saehana Sahrul
Published: July 2019

Abstrak- Tujuan penelitian ini yaitu untuk mengetahui hubungan kecerdasan emsional dengan hasil belajar IPA. Populasi penelitian ini yaitu seluruh siswa kelas VIII SMP Negeri 1 Palu. Sampel penelitian ini adalah siswa kelas VIII A dan kelas VIII H SMP Negeri 1 Palu. Sampel diambil secara acak dengan menggunakan teknik simple random sampling. Dimana sampel penelitian ini terdiri dari 43 orang. Kelas yang menjadi sampel penelitian diberikan tes kecerdasan emosional berupa angket. Data kecerdasan emosional diperoleh dari angket siswa, sedangkan nilai hasil belajar diperoleh dari data rapor siswa, kemudian dikorelasikan dengan nilai tes kecerdasan emosional. Dalam pengujian hipotesis dengan menggunakan uji korelasi product moment diperoleh rhitung = 0,559 dan rtabel = 0,301 pada α = 0,05. Presentase pengujian hipotesis diperoleh hasil sebesar 31,25% pengaruh kecerdasan emosional terhadap hasil belajar IPA. Berdasarkan hasil yang diperoleh, disimpulkan bahwa terdapat hubungan antara kecerdasan emosional dengan hasil belajar IPA. Kata Kunci: Kecerdasan emosional dan hasil belajar
PENERAPAN PENDEKATAN SAVI UNTUK MENINGKATKAN HASIL BELAJAR FISIKA PADA SISWA KELAS XI SMA NEGERI 8 PALU
Authors: Sakka Sakka , Kendek Yusuf , Kamaluddin Kamaluddin
Published: July 2019

Abstrak - Penelitian tindakan kelas ini bertujuan untuk meningkatkan hasil belajar fisika siswa kelas XI SMA Negeri 8 Palu. Masalah yang diteliti adalah rendahnya hasil belajar siswa pada mata pelajaran Fisika. Alternatif pemecahan masalah adalah menerapkan pendekatan pembelajaran SAVI. Subyek penelitian adalah siswa kelas XI SMA Negeri 8 Palu, dengan jumlah siswa 20 orang. Penelitian ini menggunakan Penelitian Tindakan Kelas yang dilaksanakan secara bersiklus dan mengacu pada desain penelitian dari model Kemmis & Mc. Taggart, yang meliputi 4 tahap: (i) perencanaan (ii) pelaksanaan tindakan (iii) observasi (iv) refleksi. Jenis data yang diperoleh adalah data kualitatif dan data kuantitatif. Data kualitatif adalah data yang diperoleh dalam kegiatan belajar mengajar berupa observasi dan wawancara. Hasil observasi aktivitas siswa dan guru pada siklus I yaitu cukup dan baik, sedangkan siklus II berada pada kategori baik dan sangat baik. Sedangkan data kuantitatif adalah data hasil belajar yang diperoleh dengan tes. Hasil belajar siklus I diperoleh ketuntasan belajar klasikal yakni 65% dengan jumlah yang tuntas sebanyak 12 orang siswa dan yang belum tuntas 7 orang siswa. Pada siklus II ketuntasan belajar klasikal sebanyak 85 % dengan rincian 17 orang siswa tuntas dan 3 orang siswa yang masih belum tuntas. Berdasarkan hasil tersebut dapat disimpulkan bahwa dengan penerapan pendekatan pembelajaran SAVI dapat meningkatkan hasil belajar siswa. Kata Kunci     : Pendekatan SAVI, Hasil Belajar Fisika
Penerapan Model Pembelajaran Inkuiri Terbimbing Untuk Meningkatkan Keterampilan Akuisisi Fisika pada Siswa Kelas X SMA Negeri 5 Palu
Authors: Indra Dewi Ni Luh , Darmadi I Wayan , Ali Muhammad
Published: July 2019

Penelitian ini bertujuan untuk meningkatkan keterampilan akuisisi fisika melalui model pembelajaran inkuiri terbimbing pada siswa kelas X SMA Negeri 5 Palu. Jenis penelitian yang digunakan adalah eksperimen lemah dengan desain “One grup pretest-postest design”. Sampel dipilih dengan menggunakan teknik purposive sampling dan menghasilkan kelas X MIPA I sebagai kelas eksperimen. Instrumen yang digunakan berupa tes keterampilan akuisisi dalam bentuk esai. Pengambilan data dilakukan dengan pemberian pretest dan postest. Berdasarkan hasil pengolahan data, diperoleh rerata skor pretest keterampilan akuisisi kelas eksperimen adalah 14,78 dan untuk postest adalah 28,00. Analisis data tes dilakukan dengan teknik statistic uji-t dua sampel berhubungan untuk menguji perbedaan rerata skor keterampilan akuisisi fisika siswa dengan signifikansi  = 0,05. Diperoleh nilai hasil thitung = 9,87 dan ttabel(0.95)(22) = 1,72. Ini berarti bahwa nilai thitung berada diluar daerah penerimaan Ho. Hasil pengujian rerata N-gain diperoleh 37,38 berkategori sedang. Berdasarkan hasil Lembar Observasi Guru dan Siswa yang dilakukan selama 2 kali pertemuan diperoleh persentasi nilai rata-rata dalam kriteria baik. Sehingga dapat disimpulkan bahwa terdapat peningkatan keterampilan akuisisi fisika siswa melalui model pembelajaran inkuiri terbimbing.
Pengaruh Model Pembelajaran Advance Organizer dengan Menggunakan Peta Konsep Terhadap Pemahaman Konsep Siswa Kelas X Di SMA Negeri 7 Palu
Authors: Amelia Riski , Mansyur Jusman , Kade Amiruddin
Published: July 2019

Penelitian ini bertujuan untuk mengetahui ada tidaknya pengaruh model pembelajaran Advance Organizer dengan menggunakan peta konsep terhadap pemahaman konsep siswa Kelas X di SMA Negeri 7 Palu. Jenis penelitian ini yaitu kuasi eksperimen dengan desain “nonrandom control group pretest-postest design”. Populasi penelitian adalah seluruh siswa Kelas X SMA Negeri 7 Palu. Sampel dipilih dengan menggunakan teknik purposive sampling dan menghasilkan Kelas X B  sebagai kelas eksperimen dan Kelas X A sebagai kelas kontrol. Instrumen tes yang digunakan berupa tes esai. Berdasarkan hasil pengolahan data, pengujian hipotesis diperoleh nilai thitung = 8,59 dan ttabel = 1,67. Hal ini berarti Ho ditolak, sehingga dapat disimpulkan bahwa ada pengaruh model pembelajaran Advance Organizer dengan menggunakan peta konsep terhadap pemahaman konsep siswa Kelas X di SMA Negeri 7 Palu.
Keterampilan Berpikir Kritis Siswa pada Konsep Mekanika di SMA Negeri 5 Palu
Authors: Risnawati Risnawati , Pasaribu Marungkil , Syamsu Syamsu
Published: July 2019

Penelitian ini bertujuan untuk mendeskripsikan seberapa besar tingkat keterampilan berpikir kritis siswa pada konsep mekanika pada materi gerak. Subjek penelitian ini adalah siswa kelas XI IPA 1 SMA Negeri 5 Palu yang terdiri dari 40 siswa. Data diperoleh melalui lembar jawaban tes keterampilan berpikir kritis siswa dan wawancara. Pemberian tes keterampilan berpikir kritis terdiri atas 10 soal essay untuk menentukan enam responden dengan skor tertinggi, sedang dan rendah yang bertujuan dapat memperoleh data untuk mencakupi keragaman kemampuan yang dimiliki siswa serta dapat menentukan siswa dalam menentukan saat proses wawancara berlangsung. Hasil penelitian menunjukkan bahwa keterampilan berpikir kritis siswa pada konsep mekanika yang dibatasi pada materi gerak berada pada kategori sedang. 3 subjek dikategorikan sangat kritis, 24 subjek kritis dan 13 subjek kurang kritis. Hal ini diperoleh dari 10 sub-indikator keterampilan berpikir kritis yaitu memfokuskan pertanyaan dengan skor 58.5, menganalisi argumen dengan skor 65, bertanya dan menjawab pertanyaan dengan skor 82.5, mempertimbangkan apakah sumber dapat dipercaya atau tidak dengan skor 64.5, mengobservasi dan mempertimbangkan hasil observasi dengan skor 23.5, mendeduksi dan mempertimbangkan hasil deduksi dengan skor 19, menginduksi dan mempertimbangkan hasil induksi dengan skor 66, membuat dan menentukan hasil pertimbangan dengan skor 55, mendefenisikan istilah dan mempertimbangkan suatu defenisi dengan skor 83.5 dan mengidentifikasi asumsi-asumsi dengan skor 73.5.   Kata Kunci : keterampilan berpikir kritis, konsep mekanika
Perbedaan Hasil Belajar Fisika Antara Model Pembelajaran Kooperatif Tipe Group Investigation dan Model Pembelajaran Kooperatif Tipe Think Pair Square pada Siswa Kelas X SMA Negeri 9 Palu
Authors: Pandi Pandi , Ali Muhammad , Saehana Sahrul
Published: July 2019

Penelitian ini dilakukan dengan tujuan mengetahui perbedaan hasil belajar fisika antara model pembelajaran kooperatif tipe group investigation dan model pembelajaran kooperatif tipe think pair square pada siswa kelas x SMA Negeri 9 Palu. Jenis penelitian ini merupakan eksperimen kuasi dengan desain equivalent pretest-posttest. Populasi penelitian adalah siswa kelas X SMA Negeri 9 Palu. Tekhnik pengambilan sampel yang digunakan dalam penelitian ini adalah purposive sampling dengan sampel penelitian adalah kelas X B sebagai kelompok eksperimen 1 dan kelas X C sebagai kelompok eksperimen. Instrumen hasil belajar fisika berupa tes piihan ganda. Tes hasil belajar fisika yang diperoleh menunjukkan bahwa skor rata-rata kelompok eksperimen 1 yaitu 12,29 lebih tinggi dari kelas eksperimen 2 yaitu 10,46.Uji hipotesis uji t (dua pihak), diperoleh thitung = 2,11 dan ttabel(0.975)(50) =2,02 pada taraf nyata α = 0,05. Ini berarti bahwa nilai thitung berada di luar daerah penerimaan Ho. Dengan demikian dapat disimpulkan bahwa ada perbedaan hasil belajar fisika  antara model pembelajaran kooperatif tipe group investigation dan model pembelajaran kooperatif tipe think pair. Tingginya hasil belajar fisika siswa kelas eksperimen 1, disebabkan karena kelas ekperimen 1 menggunakan model pembelajaran kooperatif tipe group investigation, sehingga siswa berperan aktif dalam proses pembelajaran dan secara kreatif menemukan permasalahan yang diajukan.Kata Kunci : Model Pembelajaran Group Investigation, Think Pair Square, Hasil Belajar Fisika
Analisis Tingkat Pemahaman Konsep Fluida Statis dan Penerapannya di Lingkungan Sekitar pada Siswa SMA Negeri 2 Palu
Authors: Husain Muhammad Shafar , Kendek Yusuf , Fihrin Fihrin
Published: July 2019

Abstrak – Penelitian ini bertujuan untuk mengetahui tingkat persentase siswa yang dapat memahami materi fisika konsep fluida statis dan penerapannya dalam lingkungan sekitar, faktor yang mempengaruhi belajar siswa dan kemampuan menganalisis pristiwa sehari-hari berdasarkan pengetahuan fisika. Subjek penelitian adalah siswa kelas XI MIA SMA Negeri 2 Palu tahun ajaran 2016/2017. Responden penelitian diperoleh dengan teknik purposive sampling yaitu kelas yang memiliki hasil belajar tinggi yaitu siswa kelas XI MIA II sebanyak 24 siswa. Data diperoleh melalui tes pemahaman konsep beserta penerapannya dalam lingkungan sekitar, soal menganalisis, angket dan wawancara. Hasil dari penelitian ini menunjukkan bahwa pada tingkatan atau kategori I sebanyak 8%, pada kategori II sebanyak 63% pada kategori III sebanyak 29%. untuk faktor yang mempengaruhi hasil belajar mereka rata-rata faktor internal yaitu minat sebesar 78%, dan motivasi sebesar 73%, faktor eksternal yaitu keluarga sebesar 71%, sarana dan prasarana sebesar 60% dan lingkungan masyarakat sebesar 67%. Disamping itu kemampuan menganalisis siswa rata-rata diperoleh materi tekanan hidrostatis sebesar 29%, hukum pascal 44%, dan hukum archimedes sebesar 18%. Sehingga dapat disimpulkan bahwa siswa yang memahami konsep fluida statis dan memahami penerapannya di lingkungan sekitar tergolong masih rendah, dan kemampuan mengerjakan soal analisis siswa juga tergolong masih rendah. Kata Kunci: pemahaman konsep; penerapan lingkungan; fluida statis.
Pengaruh Model Pembelajaran Penemuan Berbasis Mind Mapping terhadap Hasil Belajar Fisika Siswa Kelas VIII SMP Negeri 18 Palu
Authors: Kadir Nurhaisah , Pasaribu Marungkil , Syamsu Syamsu
Published: July 2019

Abstrak – Penelitian ini bertujuan untuk melihat ada tidaknya pengaruh model pembelajaran discovery berbasis mind mapping terhadap hasil belajar fisika siswa kelas VIII SMP Negeri 18 Palu. Jenis penelitian yang digunakan yaitu eksperimen kuasi dengan desain “The Non Equivalen Pretest-Posttest Group Design”. Sampel dipilih menggunakan teknik purposive sampling. Kelas VIII F sebagai kelas kontrol dan kelas VIII G sebagai kelas eksperimen. Instrumen yang digunakan berupa tes hasil belajar fisika dalam bentuk pilihan ganda yang telah divalidasi melaui validitas ahli dan teknik analisa data. Berdasarkan hasil pengolahan data, untuk kelas eksperimen diperoleh rerata skor tes akhir adalah 9,63 dengan standar deviasi sebesar 2,82. Untuk kelas kontrol diperoleh rerata skor tes akhir 7,32 dengan standar deviasi sebesar 2,36. Hasil pengujian hipotesis diperoleh nilai thitung = 2,96 dan ttabel = 2,02. Ini berarti bahwa nilai thitung berada di luar daerah penerimaan H0. Hasil ini memberi peluang untuk menyatakan terdapat perbedaan hasil belajar fisika antara kelas kontrol dan kelas eksperimen. Dengan demikian dapat disimpulkan terdapat pengaruh model pembelajaran discovery berbasis mind mapping terhadap hasil belajar fisika siswa kelas VIII SMP Negeri 18 Palu.Kata Kunci: Discovery,Mind Mapping, Hasil Belajar Fisika.
Pengaruh Pembelajaran dengan Pendekatan Kontekstual terhadap Pemahaman Konsep Fisika Pada Siswa Kelas VIII SMPN 19 Palu
Authors: Wahab Aryani A , Hatibe Amiruddin , Jarnawi Muhammad
Published: July 2019

Tujuan penelitian ini adalah untuk mengetahui ada tidaknya pengaruh pembelajaran dengan pendekatan kontekstual terhadap pemahaman konsep fisika pada siswa Kelas VIII SMP Negeri 19 Palu. Hipotesis yang diajukan dalam penelitian ini yaitu terdapat pengaruh pembelajaran pendekatan kontekstual terhadap pemahaman konsep fisika pada siswa kelas VIII SMP 19 Palu. Populasi penelitian ini adalah seluruh siswa kelas VIII SMP 19 Palu. Pengambilan sampel dilakukan secara purposive sampling dengan sampel penelitian adalah kelas VIIIC sebagai kelas kontrol dan kelas VIIIA sebagai kelas eksperimen. Instrumen penelitian berupa tes pemahaman konsep yang telah divalidasi oleh validator ahli. Hasil analisa data dari rentang skor antara (0-20) diperoleh skor rata-rata kelas eksperimen 63,13 dengan standar deviasi 0,97 dan kelas kontrol diperoleh skor rata-rata 55,00 dengan standar deviasi 2,12. Berdasarkan uji hipotesis diperoleh thitung > ttabel yaitu 6,46 > 1,67,  dari taraf signifikasi  dengan demikian H1 diterima dan H0 ditolak. Hasil uji membuktikan bahwa terdapat perngaruh pemahaman konsep fisika antara kelas yang mengikuti pembelajaran dengan pendekatan kontekstual dengan siswa yang mengikuti  pembelajaran konvensional.
Otras Disfuncionalidades del Sistema Mixto de Control de Constitucionalidad
Authors: Morelli Sandra
Published: July 2019

En un artículo publicado por la Revista de la Academia Colombiana de Jurisprudencia en la sección Polémica actual y con el nombre: " Breves apuntes sobre jurisdicción constitucional en Colombia, hube de hacer algunas reflexiones sobre el carácter mixto de nuestro sistema de control de constitucionalidad en el que se subsidien elementos de control  de constitucionalidad difuso a pensar de la creación de una Corte Constitucional a la luz de las experiencias austríaca, alemana, italiana y española que suponen la vigencia de un régimen concentrado en este ámbito.
El socialismo del siglo XXI en el contexto de la nueva izquierda latinoamericana
Authors: Ramírez Montañez Julio
Published: July 2019

El objetivo principal de este trabajo es presentar un enfoque analítico del autoproclamado "nuevo socialismo del siglo XXI" en el contexto de las transformaciones emprendidas por la llamada "revolución bolivariana". Las reformas emprendidas al referirse a la ideología del socialismo del siglo XXI en estos países se caracterizó por una intensificación del proceso de transformación de la estructura estatal y las relaciones entre el Estado y la sociedad, continuando con la nacionalización de sectores de la economía, la centralización del aparato político de la administración del Estado. Sin embargo, en los últimos cuatro años, en algunos países donde se ha implementado el socialismo del siglo XXI, la población civil se ha estado manifestando en contra de este tipo de régimen.
KAPITTEL 1 Den nye selvhjelpsbevegelsen
Authors: Brottveit Ånund , Gotaas Nora , Zeiner Hilde Hatleskog , Feiring Marte
Published: July 2019

In order to provide a background for subsequent discussions, the chapter introduces the notion of the “new self-help movement” in Norway. The 1980s and 90s saw the establishment of self-help groups that differed from more traditional approaches, such as Alcoholics Anonymous and other 12-step groups. The new self-help movement, we argue, cannot be understood independently of broader social developments. The chapter, therefore, discusses the self-help movement in light of recent welfare reforms and processes of individualization more generally. Developments in the new Norwegian self-help movement is part of a larger, international trend. Internationally, as well as in Norway, new self-help groups increasingly have a psychological and therapeutic orientation. Our aim, however, is not to contribute to the growing literature on causes and effects of the “therapeutic” or “self-help culture”. Rather, our interest lies in collective, group-based forms of self-help. We argue that the context for group-based self-help activities has changed, and that this, in turn, changes the content and form of contemporary self-help groups and movements. We then proceed to introduce the theoretical framework on which the various contributions draw, and, finally, to introduce the various contributions.
KAPITTEL 4 «Midt i smørøyet» – samarbeid og ambivalens i grenseflater mellom profesjons- og erfaringskunnskap
Authors: Gotaas Nora
Published: July 2019

The chapter discusses collaborations and «borderwork» between self-help/mutual aid activists and professionals by the example of the project Utviklingsprosjekt LINK Vestfold. The project was initiated and run by three patient education resource centres (LMS) in Vestfold county in 2009–2010, financially supported by the Directorate of Health and in close collaboration with the National Competence Centre Self-Help Norway. Essentially, the project was very successful, resulting in a broad and active network of professionals and volunteers and the formation of new self-help groups. The project paved the way for a new district office of the National Competence Centre. At the same time, the collaboration revealed certain tensions and ambiguities on both sides, originating in close similarities as well as important differences regarding the use and practice of experiential knowledge – as opposed to professional knowledge – by actors operating in between and on the fringe of established fields. The project highlights how processes of standardization of the self-help model (by Self-Help Norway) is met by kind of resistance and how self-help as a «boundary object» needs to be kept flexible to adjust to different local contexts. This may be an act of balance in a context where the self-help movement is the weaker part regarding institutional strength, in need of guarding the autonomy of self-help groups.