bluuebunny/crossref_metadata_2025 huggingface dataset:
Sniffing Methanol in Hand Sanitizers
Authors: Güntner Andreas T. , Magro Leandro , Broek Jan van den , Pratsinis Sotiris E.
Published: October 2020

The COVID-19 pandemic has increased dramatically the demand for hand sanitizers. A major concern is their adulteration with methanol that caused more than 700 fatalities in Iran and U.S.A. (since Feb. 2020). In response, the U.S. Food and Drug Administration (FDA) has restricted the methanol content in hand sanitizers to 0.063 vol% and blacklisted 194 products (as of Oct. 1, 2020). Here, we present a low-cost, handheld and smartphone-assisted device that detects methanol selectively in hand sanitizers between 0.01-100 vol% within two minutes by headspace analysis. It features a nanoporous polymer column that separates methanol from confounders by adsorption (i.e. van-der-Waals forces) rendering it selective. A chemoresistive gas sensor detects the methanol. When tested on seven pure and spiked commercial sanitizers (total 76 samples), methanol was quantified accurately, in excellent (R2 = 0.99) agreement to "gold standard" gas chromatography. Most importantly, methanol quantification was hardly interfered by different sanitizer compositions (e.g. 2-propanol, ethanol, butanone, glycerin, aloe vera essence, various odorants and colorants) and gel-like viscosity while other potential contaminants (e.g. 1-propanol) were recognized as well. This device meets an urgent need for distributed and on-site methanol screening by authorities (e.g. customs, police), health product distributers and even laymen.
Inhibition Strength of Free Radicals of DPPH and Staphylococcus aureus by Ethanol Extract of Papaya Leaves (Carica papaya L)
Authors: Mustofa Ahda  , Aisah Erna Wanti  , Rizki Dwi Mantoro
Published: October 2020

The DPPH and Staphylococcus aureus inhibition by ethanol extract of papaya leaves has been evaluated. This research focussed on the use of papaya leaves extract as one potential herbal to be applied in cosmetics as an ingredient. Papaya leaves were extracted using the maceration method with 70% and 96% ethanol for 24 hours. Both ethanol extracts of papaya leaves showed that they could inhibit the free radicals of DPPH and S. aureus bacteria. Their activity related to its active compounds in phenolic compound form. The total phenolic content of 70% and 96% ethanol extract of papaya was 65.27±1.21% and 12.64±0.27% respectively. This total phenolic content was significantly different. The 70% ethanol extract of papaya has higher total phenolic content than 96% ethanol extract. Therefore, both 70% and 90% ethanol extract of papaya also resulted in different activity in S. aureus bacteria and DPPH inhibition. Antioxidant activity of both extracts possessed low ability to inhibit free radicals of DPPH. In contrast, their bacteria activity showed that 70% and 96% ethanol extract of papaya on the concentration of 8 mg/mL could inhibit the S. aureus bacteria growth around 1.47±0.05 mm and 1.37±0.05 mm, respectively. Based on these properties, papaya leaves extract can be applied for cosmetic ingredients in high doses to maximize its activity.
A study to assess the risk factors of bronchial asthma in children below 10 years of age
Authors: Kalabarathi S  , Kavya K. Nair
Published: October 2020

Children are profoundly powerless against the negative wellbeing resulting in numerous ecological exposures. Children get proportionately more significant portions of natural toxicants than grown-ups, and the way that their organs and tissues are quickly creating makes them especially vulnerable to synthetic abuse. Asthma is a constant fiery infection of the aviation routes at present influencing over 300 million individuals around the world. The risk factors of asthma include genetic predisposition, irresistible respiratory contamination, allergens, environment, workouts, medications, additives, and occupational stimuli. The descriptive research design was used with 100 samples, which matched Non- probability convenience sampling techniques selected the inclusion criteria. Demographic variables were collected by interview method followed by assessed the risk factors of bronchial asthma in children (below ten years of age) by using a self-structured questionnaire. Out of 100 samples, 50(50%) risk factor of heredity, 71(71%) have problems in taking asthma medications, 44(44%) only use zipped pillow covers, 34(34%) do not use gas stoves in the kitchen, 10(10%) have moisture in the walls, 6(6%) have cases of asthma emergencies, 56(56%) find helpless in dealing with an asthma child.
Haematological profile in clinically suspected cases of neonatal Sepsis
Authors: Rashmi L Sonawane  , Mahendra A Patil  , Sujata Kanetkar
Published: October 2020

Neonatal septicemia is one of the major factors contributing to the high perinatal and neonatal mortality and morbidity in newborns and is recognized as global health challenge. Study was aimed the changes in hematological profile along with blood culture and C-reactive proteins in clinically suspected cases of neonatal sepsis. The present study were included 108 neonates clinically suspicious to have sepsis and admitted in NICU. Avacutainer, Glass slides, Leishman’s stain, Automated Hematology analyzer, Staining Kit was used. Maximum number of neonates i.e. 80 (74%) were less than 2 days old. 70 (64.82%) were males and 38 (35.18%) were females. Maximum number (53.70%) were preterm, respiratory distress seen in (76.11%) Premature rupture of membranes was observed in 39 (36.11%). The clinical suspicion of sepsis, 24 (22.22%) had proven sepsis, . Rodwell’s hematological score of > 3 identified 23 out of 24 (95.83%) proven sepsis group neonates, 24 (88.89%) probable sepsis group neonates. Of the 108 neonates with clinical suspicion of sepsis, 24 (22.22%) had positive blood cultures. The most common pathogen isolated in the blood culture was Klebsiella pneumonia in 12 (50%). Leucocytosis was seen in 4 (16.6%). The total WBC count has low sensitivity (37%) but a high specificity (96%) as indicator of sepsis. Elevated immature PMN count was observed (79.2%) Elevated .Thrombocytopenia was noted in 9 cases (37.5%) proven sepsis. CONCLUSION- Rodwell’s hematological scoring framework is a straightforward, speedy, financially savvy instrument which can be utilized as screening test for early conclusion of neonatal sepsis.
Anti-hyperlipidemic Activity of Lannea coramandelica Leaf Extract Against Experimentally Induced Hyperlipidemia in Rats
Authors: Sekkizhar M  , Jaikumar S  , Asokan B R
Published: October 2020

Hyperlipidemia and hypercholesterolemia are interrelated terms and the same course of disorders which raise the serum levels of cholesterol and triglycerides. Herbs are used for treating diseases and used in the traditional systems of medicines like Ayurveda. As science is evolving, research to prove the pharmacological activity of the herbs and establishing scientific proof is also important. Lannea coramandelica is a native plant for tropical countries like India. It is considered one of the lifesavers of the area with abundant polyphenols, flavonoids, gums and other chemical constituents. Most of the antioxidant chemical components like flavonoids are potent in treating and lowering lipids in the body and reduces the oxidative stress in the human body to process fats. Lannea coramandelica has been proven to have vast amounts of flavonoids and antioxidant principles. Current research has been designed to confirm the hyperlipidemia controlling property of Lannea coramandelica extracts. The Lannea coramandelica extract showed a better hyperlipidemic activity at a dose of 500mg/kg in both the events.
Effectiveness of DFMC chart versus Caardiff Ten Count chart on mother’s perception among antenatal mothers
Authors: Jagadeeswari J  , Prasanth K
Published: October 2020

Pregnancy is considered as a very precious event in every women`s life. It is filled with happiness, joy and surprises. Every parents hopes for a healthy baby, but may sometimes become sorrowful when danger sets in either to the mother or to the fetus. Pregnancy links mother and fetus together and is the basis for regeneration and the generation. In high-risk pregnancies, the mother may sometimes escape death but fetus and neonates often become the victim so the present study aims to assess the effectiveness of DFMC chart and Cardiff count ten charts on mother’s perception among antenatal mothers. A quantitative approach with Pre-Experimental research one-shot case design was adopted to conduct the study among 30 antenatal mothers who were selected by Non- probability convenience sampling technique. The semi-structured interview method was used to collect the demographic data and the level of the mother's perception among antenatal mothers was assessed by a structured questionnaire. The results of the study shows that among 30 samples in the DFMC group, 9(60%) had good perception 5(33.33%) had very good perception and 1(6.7%) had poor perception. Whereas in the Cardiff Ten Count, 10(66.7%) had good perception and 5(33.33%) had very good perception on fetal movement among antenatal mothers. This study proves that DFMC and CARDIFF chart on mother’s perception is an effective method to prevent any fetal complication during pregnancy and also it helps the mothers to improve to the knowledge and to provide the better quality of life to maternal.
Immunodepressant and oxidant potential of standard leukaemia drug regimen
Authors: Marwan M. Merkhan  , Ibrahim M. Faisal  , Dema Z. Alsaleem  , Omer M. Shindala  , Hani M. Almukhtar  , Imad A. Thanoon
Published: October 2020

Chemotherapy improves cancer status but also could carry a risk of harmful side effects. In leukaemia patients, oxidative status and immune system are crucial parameters for patient improvement. The present study is aimed to assess the oxidative stress and the levels of immunoglobulin, including; IgG, IgA, and IgM in acute myelocytic leukaemias (AML) patients. A total of twenty-one patients with AML were enrolled in this study, alongside 24 healthy individuals as a control group. Initially, in both groups, the serum MDA, IgA, IgG, and IgM levels were measured. Then after a month of treatment with standard leukaemia therapy; the measurement of levels of these parameters were repeated for both the patients’ group and the control group for measuring immunoglobulin levels while analysis of MDA was done by the laboratory method. A highly significant rise in the serum MDA level was detected (P<0.001) in patients with AML after treatment with specific cytotoxic drugs was observed in comparison with the control. Moreover, there was a significant modulation in the serum concentration of Ig after starting cytotoxic drugs in comparison with the controls. The study revealed that AML was associated with elevated oxidative stress parameters following treatment with cytotoxic drugs as reflected by the rise in the serum levels of MDA. The decreased serum Ig levels indicate a reduction in immune response in patients with AML due to cytotoxic drugs.
Prophylactic Effects of Tomato and Lemon Juices on Castrated Healthy Local Male Rabbits
Authors: Muntaha Mahmoud Al-Kattan
Published: October 2020

This study was performed to determine the Prophylactic effects of both lemon and tomato juices on some physiological and biochemical features of healthy castrated male rabbits. The study included 30 male rabbits divided into 6 groups with 5 rabbits/ group; the first group which is the control group were given physiological solution, the second were given (4ml/ kg of body weight) lemon juice, the third were given (3ml/kg of body weight) tomato juice, the fourth were castrated and given physiological solution, the fifth were castrated and given (4ml/ kg of body weight) lemon juice and the sixth were castrated and given (3ml/kg of body weight) tomato juice. The results showed positive effects in the groups treated with the juices regarding the Adiponectin hormone, T3, T4 and TSH, as well as a reduction in concentration of TC, LDL-c, atherogenesis index and an increase in HDL-c concentration. We concluded that castrated groups was the opposite where there was a reduction in the concentrations of the Adiponectin hormone, T3, T4 and TSH, and an increase in the concentrations of TC, LDL-c, the atherogenesis index and a reduction in concentration of HDL-c.
Virosomes: A groundbreaking revolution in novel drug delivery
Authors: Sreeja C Nair  , Sreelekshmi A S  , Aslam Abdul Rahiman C A  , Karthik Krishnan  , Gopika G  , Priyanka Nair T  , Unnithan Gauri Ajit
Published: October 2020

The site-specific action of the drug has been seen from the last eras of the revolution in drug delivery technologies. Drug delivery opportunities by the use of biomimetic nanoparticles like virosomes is a stimulating area of research & development as it demonstrates targeted action by fusion with the target cell. Virosomes are vesicular particles reconstituted from viral envelopes which are non-replicating “artificial viruses” that denotes a unique system for presentation of antigen directly into the host cell. Trials have been created to use them as vaccines or adjuvants moreover as a delivery system for medicine, nucleic acids, or genes. Various attempts have been made to use them as vaccines or adjuvants as well as a delivery system for drugs, nucleic acids, or genes as they are biocompatible, biodegradable, non-toxic and non-autoimmunogenic. The production of vaccines increasingly moved away from living attenuated or inactivated whole organisms to safely killed organism. A virus that is safely killed can be a promising vector because it does not cause infection, and the viral structure allows the virosome to identify different components of its target cells. Pevion's virus-like particle (VLP) vaccine technology, called virosomes, and its architecture is specifically designed to produce safe and efficient vaccine subunits. Virosome-based vaccination is effective in reliable regulatory and safety records as well as the feasibility of upgrading production and has been approved in more than 40 countries, including infants and older people. The prospect of drug delivery and targeting using virosomes is a vital area of research and development. This review pinpoints the various aspect of virosome and will be a milestone for the researchers in the field of drug delivery.
Evaluation of acute and sub-chronic toxicity studies of Barleria cuspidata Heyne ex Nees
Authors: Manohar Reddy  , Raja Sundararajan
Published: October 2020

The fundamental reason for this examination was to look at the acute and sub-chronic harmfulness investigations of chloroform and methanol extracts of Barleria cuspidata Heyne ex Nees (Acanthaceae) on creature models according to the OECD rules 407 and 425 respectively. In acute oral toxicity study a solitary oral dosages of 5000 mg/kg body weight of the individual chloroform and methanol extracts was given to rodents and watched them for two weeks for the discovery of acute changes and for its mortality any. During acute oral toxicity study period no mortality were seen without any denotation of intense changes. Further, it was executed the sub-chronic toxicity of extracts. Barleria cuspidata extracts (chloroform and methanol) were independently given every day at dosages of 250 and 500 mg/kg body weight for 90 days to recognize the progressions any at sub-chronic poisonousness levels. Toward the finish of the experimentation by gathering the serum tests of trial creatures and watched for any progressions in hematological, biochemical and histopathological boundaries. All parameters of treated group were shown unaltered changes throughout the study period when compared with that of normal group. The outcomes propose that the oral organization of chloroform and methanol extracts of Barleria cuspidata didn't raise any huge poisonous impacts when contrasted with that of control animals. Hence the extracts may be safe for therapeutic use and as an alternative system of medicine.
Physicochemical Characterization of the Siddha Metallo Mineral Drug - Veera Aya Chenduram (VAC)
Authors: Sridevi J  , Madhavan R  , Prasad V V P  , Kanakavalli K
Published: October 2020

Veera ayachenduram (VAC) is a metallo-mineral drug cited in Siddha text literature KannusamiyamparambaraiVaithiyam. The study aimed to standardises the VAC by evaluating its physicochemical characters such as colour, ash value, pH value analyses the heavy metal composition in modern instrumental techniques. Inductively coupled plasma optical emission spectrometry (ICP-OES) and to find out the particle size through scanning electron microscopy (SEM) and. The total ash value was found to be 7.7% w/w, acid-insoluble ash value is 1.25% w/w, water-soluble ash value is 25.32% w/w, and The pH value is 6.5. The ICP-OES reveals that heavy metals such as mercury, lead, arsenic, and cadmium are within the limit. High-resolution SEM analysis of the drug indicated the existence of nanoparticles.
Integration of importance-performance analysis into testing of the relationship between hospital service performance, satisfaction and loyalty with PLS-SEM approach
Authors: Prasojo Pribadi  , Susi Ari Kristina  , Suci Paramitasari Syahlani  , Satibi Satibi
Published: October 2020

Improvement of service performance, customer satisfaction, and loyalty give a significant contribution to business performance and profitability. This study aims first to identify the most critical factors related to hospital service performance in predicting the patient's satisfaction. Second, to examine the effect of patient satisfaction on patient loyalty. This research is a quantitative study with a cross-sectional approach, involving 280 outpatients conducted in two hospitals. Finally, the partial least square-structural equation modelling (PLS-SEM) approach was performed to analyze the data. The result showed the lowest index performance is the outcome quality (49.84), and the highest is the quality of personnel (72.49). The calculation of the patient satisfaction index (PSI) is 67.48. Patient satisfaction is significantly influenced by the quality of personnel, outcome quality, social responsibility, administrative procedure, and physical aspect. Patients satisfaction has a significant effect on patient loyalty. However, health insurance, quality of medical care, and quality of pharmaceutical care have no significant effect on patient satisfaction. The map of importance-performance analysis (IPA) suggest the hospital institution needs to improve the physical aspect, administrative procedure and outcome quality. The overall patient are satisfied with the performance of hospital services. Patients are objective controls of an organization. Therefore, the focus of hospital managers on strategies for building relationships with patients.
Plant-derived alkaloids as anti-viral agents
Authors: Nagasathiya Krishnan  , Velmurugan Devadasan  , Pachaiappan Raman
Published: October 2020

Humans are prone to many viral infections, most of them not causing diseases, and some will do. The new pandemic situation in global development and comfort to travel have highlighted their protection as a crucial problem in people’s health and safety even though significant advancements are being made in the making of vaccines and drugs. The provenance of viral mutants generally threatens immunisation and effective anti-viral treatments. The discovery of novel anti-viral drugs is, therefore of paramount importance. The secondary metabolites from the plants with pharmacological activities are regarded as an exemplary repository for this diagnosis.  An extensive study of phytochemicals and their mechanisms of action against the viruses might help in controlling harmful viruses. Many phytochemical entities, including terpenes, flavonoids, polyphenol, and phenolic compounds, have been studied for their anti-viral activity. Particularly in alkaloids, cutting edge study is making way to uncover innovative therapeutic strategies. Most of the alkaloids are being used as anti-viral agents, act against few prominent viral pathogens such as coronavirus (CoV), human immune deficiency virus (HIV), systemic acute respiratory syndrome (SARS) and respiratory virus (RSV). In this review, we intend to summarise the medicinal use of plant-derived alkaloids utilised to cure viral diseases in the past four decades.
The Therapeutic effect of MKA on Bacterial Lipopolysaccharide (LPS) induced lipid peroxidation, cytosolic LDH leakage and mitochondrial membrane depolarization in RAW 264.7 Macrophages
Authors: Poongodi T  , Nazeema T H
Published: October 2020

The Polyherbal formulations are used as a potential target for treating various diseases due to its wide array of phytoconstituents with antioxidant potential. In the present study, the therapeutic effect of Polyherbal formulation (MKA) comprising of three plants Mimusops elengi L., Kedrostis foetidissima (Jacq.) Cogn. and Artemisia vulgaris L. were studied in LPS induced RAW 264.7 macrophages. Four different concentrations (25, 50, 75 and 100 µg/ml) of MKA were tested against control, LPS treatment and standard Quercetin in LPS induced RAW 264.7 macrophage cells. The rate of Lipid peroxidation was measured in terms of Malondialdehyde (MDA) levels. The cytosolic LDH leakage was determined by measuring NADH release at 340nm. The changes in mitochondrial membrane potential were studied by measuring red/green fluorescent intensity of JC-1 stained cells in the flow cytometer. It was found that MKA treatments significantly reduced the rate of Lipid peroxidation and LDH leakage compared to LPS treatment. The results of flow cytometry revealed that the JC-1 green fluorescent intensity decreased with increase in MKA concentration, in a dose-dependent manner. It is evident from the study results that, the MKA has a therapeutic effect on LPS induced RAW 264.7 macrophages by protecting the cells from lipid peroxidation, restoring the cell membrane integrity and mitochondrial membrane potential.
Awareness About Wegeners Granulomatosis Disease Among Dental Students
Authors: Nithyanandham Masilamani  , Dhanraj Ganapathy
Published: October 2020

Wegener’s granulomatosis (WG) is a systemic disease characterized by necrotizing granulomatous inflammation of the upper and lower respiratory tract, glomerulonephritis, and vasculitis. The clinical manifestations and laboratory findings suggest an autoimmune disease resulting from a hypersensitivity reaction to some environmental agent. The purpose of the survey is for assessing the awareness about wegeners granulomatosis disease amongst dental students. A cross-sectional survey was done with questionnaire comprising a total of ten multiple-choice questions which were distributed to 100  undergraduate dental students. The questions elicited awareness about the etiology, clinical features, diagnostic tests, treatment methods and complications of wegeners granulomatosis. The responses were collected and analysed. 7% were aware of etiology of Wegeners granulomatosis, 9% were aware of clinical features of Wegeners granulomatosis, 5% were aware of diagnostic tests of Wegeners granulomatosis, 5% were aware of the treatment of Wegeners granulomatosis, and 4% were aware of complications of Wegeners granulomatosis. The awareness of Wegener's granulomatosis among dental students is inadequate. Granulomatosis of Wegener is a relatively uncommon, autoimmune condition of unknown origin. Without medication, thus many patients would then inevitably die of those same illness. Therefore, awareness and education initiatives must be pursued to enlighten students about this illness.
2014-ben megjelent, jog- és államtudományi tárgyú könyvek annotált bibliográfiája 1. rész
Authors: DE A DE jogi karának oktatói-hallgatói munkaközössége
Published: October 2020

Folyóiratunkban rendszeresen jelenik meg az elmúlt időszak új, hazai szakkönyveiről készült, annotált bibliográfia. Az annotáció a könyv felhasználhatóságáról írott, rövid, tényszerű leírás, amely a bibliográfiai adatok mellett meghatározza a műfajt, illetve röviden körvonalazza a feldolgozott témát és a bemutatott eredményeket is. Az annotációk szerzői valamilyen formában kivétel nélkül kötődnek a Debreceni Egyetem Állam- és Jogtudományi Karához, legyen szó munkatársainkról, óraadóinkról vagy hallgatóinkról, PhD-hallgatóinkról. Ebben a számban a 2014-ben megjelent könyvekről készült leírások első részét közöljük.
Innovative Blade Trailing Edge Flap Design Concept using Flexible Torsion Bar and Worm Drive
Authors: Ha Kwangtae
Published: October 2020

In this paper, a simple but effective trailing edge flap system was proposed. This preliminary concept uses a more practical and stable actuation system which consists of a motor-driven worm gear drive and flexible torsion bar. The flexible torsion bar is designed to be easily twisted while keeping bending rigidity as a sup-port and the worm gear drive not only provides a high torque to overcome aero-dynamic forces on the flap area and the torsional rigidity of the support bar, but also acts as a brake to avoid instability due to the high torsional flexibility of sup-port bar. A preliminary level design study was performed to show the applicability of the new trailing edge flap system for wind turbine rotor blade or helicopter blade.
LEVELKEMAMPUAN KOGNITIF MAHASISWA PROGRAM STUDI SISTEM KOMPUTER PADA MATERI HUKUM NEWTON BERDASARKAN TAKSONOMI BLOOM
Authors: Puspitasari Wahyu
Published: October 2020

Kemampuan kognitif sangat berpengaruh dalam proses pencapaian tujuan pembelajaran. Untuk itu, dosen perlu memahami kemampuan kognitif mahasiswa agar dapat menentukan strategi pembelajaran yang tepat. Taksonomi Bloom merupakan sistem pengklasifikasian yang mengklasifikasikan tujuan pendidikan menjadi tiga domain, yaitu kognitif, afektif dan psikomotorik. Bloom membagi ranah kognitif dalam enam tingkatan, yaitu pengetahuan, pemahaman, penerapan, analisis, sintesis dan evaluasi. Berdasarkan konsep pengklasifikasian tersebut, peneliti akan melakukan proses pelevelan kemampuan kognitif mahasiswa dengan tujuan untuk menganalisis dan memperoleh informasi lebih detail tentang kemampaun kognitif mahasiswa, khususnya pada materi hukum Newton. Hasil penelitian menunjukkan bahwa dari 6 mahasiswa program studi sistem komputer, 3siswa berkempuan rendah memiliki kemampuan kognitif hanya sampaiÂ  level C3, 2siswa berkempuan sedang memiliki kemampuan kognitif sampai level C4 dan 1siswa yang berkemampuan tinggi dapat mencapai level C6. Berdasarkan hasil ini, dapat disimpulkan bahwa rata-rata kemampuan kognitif mahasiswa prodi sistem komputer pada materi hukum newton masih berada pada level C4
PENGARUH STRATEGI PEMBELAJARAN INTERAKTIF DENGAN MEDIA PAPAN FLANEL TERHADAP HASIL BELAJAR KOGNITIF TEMA 9 SUBTEMA 2 MATERI ENERGI DAN PERUBAHANNYA KELAS IV DI SDN PAKEL
Authors: AZIZAH INFIRUL
Published: October 2020

Penelitian ini dilatarbelakangiÂ  oleh permasalahan yan terjadi pada siswa SDN Pakel saat kegiatan pembelajaran banyak yang tidak memperhatikan guru menyampaikan materi pembelajaran sehingga hasil belajar siswa sangat rendah yaituÂ  mendapatkan nilai di bawah KKM 65. Berdasarkan hal tersebut peneliti menggunakan strategi pembelajaran interaktif dengan media papan flanel.Penelitian ini bertujuan untuk mendiskripsikan hasil belajar kognitif siswa pada tema 9 subetma 2 materi energi dan perubahannya kelas IV. Metode penelitian yaitu kuantitatif dan jenis desain quasy eksperimental design.Alat pengumpulan data digunakan tes dan wawancara.Tes diuji cobakan kemudian diuji validitas, tingkat kesukaran dan daya pembeda.Analisis data penelitian ini menggunakan uji normalitas, uji homogenitas dan uji hipotesis. Hasil uji hipotesis (Independent Samples Test) diperoleh nilai thitung = 2,818, nilai ttabelÂ  = 2,086, karena thitung>ttabelÂ  yaitu 2,818 â€º 2,086 dengan signifikasi 0,008 < 0,05, maka Ho ditolak Ha diterima, artinya hasil belajar kognitif siswa kelas eksperimen lebih baik. Nilai rata-rata kelas kontrolpretest 80 dan posttest 81,4, sedangkan nilai rata-rata kelas eksperimen pretest 75,6 dan posttest kelas eksperimen 85,5, bahwa ada pengaruh strategi pembelajaran interaktif dengan media papan flanel terhadap hasil belajar kognitif siswa kelas IV SDN Pakel Trenggalek pada tema 9 subtema 2 materi macam-macam energi dan perubahannya.

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Kata Kunci :hasil belajar, papan flanel, strategi interaktif.
PENGARUH PENGGUNAAN MEDIA PEMBELAJARAN MONOPOLI TERHADAP HASIL BELAJAR IPA SISWA KELAS III SD NEGERI 1 GONDANG
Authors: GUMILANG JUWITA
Published: October 2020

Siswa kelas III SD Negeri 1 Gondang dalam melaksanakan kegiatan pembelajaran di kelas kurang kondusif dan banyak siswa yang tidak memperhatikan guru saat pembelajaran berlangsung. Kegiatan pembelajaran yang kurang kondusif ini disebabkan karena beberapa factor yaitu media pembelajaran yang dapat mempengaruhi hasil belajar siswa. Sehingga diharapkan dengan adanya media pembelajaran dapat meningkatkan hasil belajar siswa. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penggunaan media pembelajaran monopoli terhadap hasil belajar IPA siswa kelas III SD Negeri 1 Gondang tahun 2018/2019. Metode yang digunakan dalam penelitian ini adalah kuantitatif eksperimen. Data yang terkumpul menggunakan teknik analisis kuantitatif. Populasi dan sampel dalam penelitian ini adalah siswa kelas III SD Negeri 1 Gondang yang berjumlah 40 siswa. Teknik pengumpulan data menggunakan tes dan dokumentasi. Hasil analisis data penelitian ini menggunakan uji T dengan ketentuan hasil >Â yaitu 4.091 > 2.021 dan nilai Sig.(2-tailed) < 0.05 yaitu 0.000 < 0.05. Dengan demikian Ho ditolak dan Ha diterima yang artinya ada pengaruh penggunaan media pembelajaran monopoli terhadap hasil belajar IPA siswa kelas III SD Negeri 1 Gondang. Berdasarkan hasil analisis dapat disimpulkan bahwa ada pengaruh penggunaan media monopoli terhadap hasil belajar IPA siswa kelas III SD Negeri 1 Gondang. Media monopoli dapat digunakan sebagai sarana untuk membangkitkan motivasi peserta didik untuk belajar, mengasah kemampuan pemahaman konsep.

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Kata kunci: Hasil Belajar IPA, media, monopoli,
PENGARUH MEDIA VIDEO INTERAKTIF TERHADAP HASIL BELAJAR KOGNITIF KELASA IV SD NEGERI 2 KARANGREJO TRENGGALEK
Authors: Gunawan Doni
Published: October 2020

Tujuan penelitian ini, 1) untuk mengetahui adakah pengaruh media video interaktif terhadap hasil belajar kognitif siswa pada materi IPA perubahan energi kelas IV SD Negeri 2 Karangrejo, 2) Mengetahui penerapan media pembelajaran video interaktif terhadap hasil belajar kognitif siswa pada materi IPA perubahan energi kelas IV SD Negeri 2 Karangrejo. Metode penelitian ini merupakan penelitian kuantitatif dengan desain quasi experimental yang diguanakan yaitu nonequivalent control group design. Hasil penelitian uji hipotesis hasil belajar kognitif siswa menggunakan independent samples t-test diketahui bahwa nilai rata – rata dari kelompok eksperimen adalah 79,54 dan kelompok kontrol adalah 71,59. Kemudian nilai t hitung sebesar 3,252 dan dapat diketahui t tabel sebesar 2.018. Perbandingan nilai t hitung dan t tabel sebesar 3,252 > 2.018 maka dapat disimpulkan bahwa terdapat pengaruh hasil belajar kelompok eksperimen dan kelompok kontrol. Kemudian dapat diketahui bahwa  nilai signifikansi 0,02 < 0,05 maka dapat disimpulkan bahwa hipotesis H1 diterima dan H0 ditolak.
CONCEPTUAL UNDERSTANDING AND PROBLEM-SOLVING SKILLS: THE IMPACT OF HYBRID LEARNING ON MECHANICS
Authors: Affriyenni Yessi , Hidayat Arif , Swalaganata Galandaru
Published: October 2020

Mechanics is a challenging topic not only for the students majoring in physics but also for those who are not majoring in physics. This study aims to discover the correlation between students’ conceptual understanding and problem-solving skills experienced by students who major in natural science. The analysis was conducted after the course had been delivered using the hybrid-learning method. Students’ conceptual understanding was measured using 13 multiple-choice questions while their problem-solving skill was measured using 3 essay questions. The normality, the linearity, and the correlation of the data were analyzed. The data is normally distributed with the average score of students’ conceptual understanding was 83 and the average score of students’ problem-solving skills was 48. The linearity test shows that there is a significant linear correlation between students’ conceptual understanding and problem-solving skills. However, the Pearson Correlation test result shows that there is no significant positive correlation between the two variables with the coefficient of determination was only 15.4%.
PENGARUH MEDIA SOSIAL (INSTAGRAM) TERHADAP LIFESTYLE DAN PRESTASI AKDEMIK
Authors: Lisnawita Lisnawita , Van FC Lucky Lhaura , Musfawati Musfawati
Published: October 2020

ABSTRAK

Zaman sekarang sangat  mudah mendapatkan informasi, karena setiap orang sudah bisa terhubung dengan internet. Terutama media sosial, Jika informasi yang diterima bagus, maka pengguna akan mendapatkan kualitas informasi yang bagus, akan tetapi jika informasi yang diterima hoax, maka akan berdampak buruk bagi si penggguna media sosial. Setiap orang punya platform sosial media lebih dari satu, seperti youtube,  facebook, whatsapp, instagram, dll. Platform ini yang sering mereka gunakan untuk mendapatkan informasi yang dibutuhkan.

Tujuan dari penelitian ini adalah Menganalisa Pengaruh Media sosial (Instagram)(Y) terhadap Lifestyle (X1)dan Prestasi mahasiswa(X2) sehingga dapat memberikan informasi mengenai pentingnya dampak penggunaan media sosial bagi mahasiswa dalam merubah pola pikir dan wawasan. Hasil Penelitian menunjukkan bahwa pengaruh variable X1 dan X2 secara simultan terhadap variable Y adalah sebesar 40, 5%

 

                                                                                                                                                       

Kata Kunci: Instagram, Prestasi akademik, Lifestyle.

 

 

ABSTRACT
       It's effortless to get information these days because everyone can connect to the internet. Mainly social media, If the information received is right, and then the user will get the correct quality information; however, if a hoax can be the news, it will be corrupt for the social media user. Everyone has more than one social media platform, such as YouTube, Facebook, WhatsApp, Instagram, etc. The purpose of this study is to Analyze the Effect of Social Media (Instagram) (Y) on Lifestyle (X1) and Student Achievement (X2) so that it can provide information about the impact of using social media for students in changing mindset and understanding. The results showed that the effect of variables X1 and X2 simultaneously on the Y variable was 40.5%
 
Grzeczna firma versus niezadowolony klient – o strategiach komunikacyjnych na portalach społecznościowych
Authors: Smól Joanna Ilona
Published: October 2020

Strony firmowe na portalach społecznościowych są miejscem utrzymywania kontaktu, wyrażania emocji oraz wymiany informacji między ich administratorami a klientami. Niejednokrotnie grzeczność – charakterystyczna dla wpisów formułowanych przez firmę – zostaje przeciwstawiona roszczeniowości, irytacji czy wręcz agresji wyrażanej przez niezadowolonych klientów. Analiza kolejnych aktów komunikacji oraz strategii, jakie przyjmuje firma, by odpowiednio zareagować na krytykę ze strony internautów, zachowując przy tym reputację oraz kreując swój pozytywny wizerunek, jest przedmiotem rozważań w niniejszym artykule.
OPTIMIZATION OF SINGLY REINFORCED RC BEAMS
Authors: Thomas Stency Mariam , Arulraj. G Prince
Published: October 2020

The main objective of this paper is to achieve an optimal design for the reinforced concrete beams. Optimization of beams results in saving in cost. The objective function is to minimize the total cost of the beam. The cost of each beam includes the cost of concrete, reinforcement and formwork. The optimization process is done for different grades of concrete and steel to determine the best grade of concrete and steel. The optimal design is carried out using MATLAB's (The Mathworks, Inc.) software. Optimization problem is formulated as a Nonlinear constrained minimization problem. This was solved using the fmincon SQP Algorithm. Many problems were solved and it was found that the solutions give the most economical design.
ANALISIS KEMAMPUAN BERPIKIR LOGIS MATEMATIS SISWA PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL
Authors: Ruhama Mustafa A H , Yasin Nurya , La Nani Karman
Published: October 2020

This study aims to describe the mathematical logical thinking ability of students of SMP Negeri 1 Ternate on systems of linear equations in two variables materials. This research uses a qualitative research. Subject of this study were three students of class VIII-J SMP Negeri 1 Ternate.  The data collection stage was conducting tests, categorizing students according to the KBLM level based on the test results, and conducting interviews with research subjects. The data analysis used in this study was to analyze the data from the test results and interviews. The results showed that students at KBLM Level 2 were able to say and write down what was known and what was asked about the questions correctly, were able to use the steps to solve systems of linear equations in two variables and these steps were correct, were able to provide arguments about all steps-steps to solve systems of linear equations in two variables, and be able to draw conclusions correctly on the final answer. Students at KBLM Level 2 were able to say and write down what was known and not write down what is asked, able to use the steps to solve systems of linear equations in two variables and these steps are correct, able to provide arguments about all steps to solve systems of linear equations in two variables, and able to draw conclusions correctly on the final answer. Students at KBLM Level 2 were able to say and write down what was known and not write down what is asked, can use the steps to solve systems of linear equations in two variables but make calculation errors in these steps, do not provide arguments about all the steps solve systems of linear equations in two variables, and do not draw conclusions correctly on the final answer
PENGARUH PENGUNAAN MODEL PEMBELAJARAN PROBLEM SOLVING TERHADAP PENINGKATAN HASIL BELAJAR MATEMATIKA SISWA SMP DI DAERAH TERTINGGAL
Authors: Abdul Gafur Anuwar Kadir , Umar Ardin
Published: October 2020

Tujuan penelitian untuk  mengetahui bagaimana hasil belajar siswa pada materi pola bilangan melalui model pembelajaran Problem Solving, serta mengetahui apakah terdapat perbedaan hasil belajar siswa pada materi pola bilangan antara model pembelajaran Problem Solving dengan konvensional. Penelitian ini merupakan penelitian eksperimen yang menggunakan dua kelas yaitu kelas VIIIA dengan menerapkan model pembelajaran konvensional dan kelas VIIIB menggunakan model pembelajaran problem solving, Populasi pada penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 5 Satap Maba yang merupakan salah satu sekolah yang berada pada daerah tertinggal. Sampel yang diambil adalah siswa kelas VIIIA berjumlah 24 siswa  dan VIIIB berjumlah 25 siswa analisis data menggunakan chi-kuadrat untuk normalitas data statistik uji parametrik yaitu uji t dengan berbantuan SPSS 25. Berdasarkan hasil penelitian dapat disimpulkan bahwa: (i) Hasil belajar siswa kelas VIIB SMP Negeri 5 Satap Maba pada materi pola bilangan setelah diberikan perlakuan dengan menerapkan model pembelajaran Problem Solving, dapat dilihat bahwa terdapat 1 siswa (4%) berkualifikasi baik sekali atau memuaskan, terdapat 5 siswa (20%) berkualifikasi baik, terdapat 11 siswa (44%) berkualifikasi cukup, terdapat 7 siswa (28%) berkualifiksi kurang, terdapat 1 siswa (4%) berkualifikasi sangat kurang. (ii) Berdasarkan uji-t, pada taraf nyata  dan nilai Sig. adalah 0,022 maka  diterima. Hal ini menunjukkan bahwa terdapat perbedaan hasil belajar antara model pembelajaran Problem Solving dan pembelajaran konvensional yang diterapkan terhadap peningkatan hasil belajar siswa pada pola bilangan
Fireside tales: understanding experiences of previous eruptions and factors influencing the decision to evacuate from activity of Volcán de Fuego
Authors: Naismith Ailsa , Armijos M. Teresa , Barrios Escobar Edgar Antonio , Chigna William , Watson I. Matthew
Published: October 2020

Volcán de Fuego (Guatemala) is capable of large (VEI?2) explosive eruptions like that of June 2018, which triggered pyroclastic flows that devastated the community of San Miguel Los Lotes, causing hundreds of fatalities and severe long-term socio-economic impacts. Future volcanic risk mitigation efforts are likely to involve temporary evacuation of local communities, the success of which requires co-operation between locals, scientists, and decision-makers. However, how locals' experiences of eruptive activity influence their responses to evacuation has not been studied in detail. We investigated these themes through semi-structured interviews that focussed on direct experience as opposed to volcanic risk perception, revealing substantial differences between scientists' and locals' observations of Fuego’s activity. Furthermore, a disparity emerged between communities on Fuego's west and east flanks in terms of direct prior eruption experience and communication with authorities. These findings have serious implications for future evacuation efforts at Fuego and at other highly populated volcanoes.
“Dampak dari Ibadah Online bagi pertumbuhan gereja Masa Kini”
Authors: Risno Florensius
Published: October 2020

Internet pada faktanya telah menyatu dengan kehidupan masa kini. Kehadirannya tidak saja telah mengubah banyak hal dalam tatanan kehidupan sosial, tetapi juga telah mengubah perilaku keagamaan dan pertumbuhan gereja. Perilaku ibadah yang selama ini terbatasi oleh ruang dan waktu, dan itu telah dijadikan standar baku keimanan seseorang, sekarang tidak lagi demikian. Bukan saja terkait dengan ruang serta waktu peribadatan, bahkan lebih dari itu liturgi gereja yang selama ini disakralkan pun juga ikut berubah. Luaran dari penulisan artikel ini adalah untuk menemukan sebuah formulasi tentang Dampak Ibadah Online bagi Pertumbuhan Gereja Masa Kini. Penelitian ini menerapkan metode kualitatif dengan analisis fenomenologi keadaan saat ini beberapa gereja tidak lagi beribadah digedung melainkan secara ibadah online yang bertujuan untuk mengabarkan Injil agar nama Tuhan dipermuliakan. Dengan metode ini akan dapat ditemukan data-data yang terserak selanjutnya dikonstruksikan dalam satu tema yang lebih bermakna dan mudah dipahami.
Strategi Perintisan Jemaat DI Tengah Sinkretisme Budaya Nias
Authors: Halawa Iman Krisdayanti
Published: October 2020

Kebudayaan Nias adalah kebudayaan yang megalitik, ini dibuktikan dengan peninggalan sejarah berupa ukiran batu-batu besar yang masih ditemukan diwilayah pedalaman pulau ini. Suku ini menyimpan banyak cerita tentang budaya, alam, adat istiadat serta keunikan suku ini hingga peninggalan megalitik dan arsitektur yang mengagumkan. Suku Nias adalah masyarakat yang masih hidup dalam lingkungan adat dan kebudayaan yang masih tinggi. Dalam aspek fondu (kepercayaan atau agama) masyarakat Nias menganut kepercayaan animisme. kepercayaan animisme adalah kepercayaan kepada roh yang mendiami semua benda. Dalam sistem religi, masyarakat Nias memiliki kepercayaan suku yang disebut sinemba adu, yang berarti penyembah patung yang dipercayai sebagai media bersemayam nenek moyang. Di mana usaha masyarakat Nias memadukan nilai-nilai agama dan nilai-nilai lokal dapat dilihat jejaknya melalui kepercayaan animimisme. Melalui perintisan jemaat ditengah Sinkretisme budaya Nias dilihat dari setiap peran hamba Tuhan bahkan seluruh orang percaya melalui strategi-strategi dalam menjangkau setiap jiwa-jiwa yang masih terikat dengan roh-roh, benda atau patung, khsususnya di masyarakat Nias.
Evaluation of the Antimicrobial and Odor-removing Efficacy of Bio Oxygen Device for Air Decontamination
Authors: ELGUJJA ABBA
Published: October 2020

BackgroundMaintaining a clean air in the contemporary environment laden with pollution from several factors has continued to be a challenge. Modern technological advancement has continued to make several attempts at ameliorating environmental pollutions and make the air humanly safe. One of such technological attempts is the Bio-Oxygen which is a type of air purifier that, as the manufacturer claims, produces oxygen clusters, and as a result, thereby purify air of pathogens, and remove unpleasant odour from the environmental air. 1.Antimicrobial Activity: The manufacturing company claimed that the oxygen clusters could aggregate and destroy viruses, bacteria, fungus, yeast, mould, mildew spores, protozoa and other pathogens. The manufacturer presented some results from in vitro experiments showing significant log reduction in bacterial growth in agar plate, Bio Test strips and air sample. However, there is, so far, no test done on other pathogens like viruses, fungi, yeasts, spores etc.2.Odour Removal: The bio –oxygen process also claims to be capable of removing odours, gases, chemical fumes and vapours including those arising from urine, faeces, vomit, body odour, toilets, garbage, sewage, fertilizers, cooking, fermentation, spoilage and rotting etc. as well as from chemicals such as from paints, varnishes, thinners, adhesives, glues, plastics , waxes, carpets, disinfectants, deodorants and perfumes etc. Some laboratory test findings have shown that Bio-Oxygen could reduce odour by up to 91%. The company showed several testimonials from some of its customers that installed the machine on exhaust ducts to reduce obnoxious smells emanating from their industries, e.g., in poultry, piggeries and waste management settings. There are, also the claim of successful use in smoking rooms, and in clubs to curtail smells coming from the nearby railway station. OBJECTIVE:To assess the safety and effectiveness of BIO-OXYGEN in odor control (odor removal) and air purification (antimicrobial claim).Methods:The Infection Control Department of King Khalid University Hospital Riyadh evaluated the machine for both its antimicrobial claims and odor removing claims. King Khalid University Hospital is a tertiary teaching hospital, and the headquarters of King Saud University Medical City, Riyadh.After obtaining the necessary approval, evaluated the Bio-Oxygen machine in an air supply duct supplied by an isolated air handling unit that supplies the waste collection rooms and part of the laundry department on the ground floor of the West Building.