bluuebunny/crossref_metadata_2025 huggingface dataset:
Pemodelan Pengaruh Imunisasi DPT Terhadap Angka Kematian Bayi di Jawa Timur Tahun 2016 Menggunakan Pendekatan Regresi Nonparametrik Spline
Authors: Al Azies Harun , Trishnanti Dea
Published: February 2020

East Java is one of the provinces with a high IMR level. Based on the District / City report in East Java, in 2006 it was 0.035 live births and became 0.0032 live births in 2008. Identification of factors that influence both indicators correctly can be done by modeling, namely by nonparametric regression analysis. The nonparametric regression approach used is Spline, with its strengths the model tends to look for estimates wherever the data moves. This is because there is a knot point which is a joint fusion point which indicates a change in data behavior patterns. Based on the results of analysis and discussion using Spline analysis, it is known that the factors that influence the incidence of IMR in East Java are toddlers receiving type 3 DPT immunization. The best Spline nonparametric regression model is a linear Spline model with three point knots. The GCV value produced was 51.34. Factors of children under five obtained immunizations affecting infant mortality rates in districts / cities in East Java in 2016. This research still uses linear spline regression program with a combination of one, two, and three knots with R square of 65.92%. The need to develop programs into quadratic and cubic orders using a combination of knots.

Jawa Timur merupakan salah satu provinsi dengan tingkat AKB yang tinggi. Berdasarkan laporan Kabupaten/Kota di Jawa Timur, pada tahun 2006 sebesar 0,035 kelahiran hidup dan menjadi 0,0032 kelahiran hidup pada tahun 2008. Jika suatu daerah dengan AKB yang tinggi, maka terdapat kemungkinan bahwa daerah sekitarnya akan memiliki beban AKB yang sama pula. Identifikasi faktor-faktor yang mempengaruhi kedua indikator secara tepat dapat dilakukan dengan pemodelan, yaitu dengan analisis regresi nonparametrik. Pendekatan regresi nonparametric yang digunakan adalah Spline, dengan kelebihannya model cenderung mencari estimasinya kemanapun data tersebut bergerak. Hal ini dikarenakan terdapat titik knot yang merupakan titik perpaduan bersama yang menunjukkan terjadinya perubahan pola perilaku data. Berdasarkan hasil analisis dan pembahasan dengan menggunakan analisis Spline diketahui bahwa faktor yang berpengaruh terhadap kejadian AKB di Jawa Timur adalah balita memperoleh imunisasi DPT tipe 3. Model regresi nonparametrik Spline terbaik adalah model Spline linear dengan tiga titik knot. Nilai GCV yang dihasilkan adalah 51,34. Faktor balita memperoleh imunisasi mempengaruhi angka kematian bayi di kabupaten/kota di Jawa Timur pada tahun 2016. Penelitian ini masih menggunakan program regresi spline linier dengan kombinasi satu, dua, dan tiga knot dengan R square sebesar 65,92%. Perlu adanya pengembangan program menjadi orde kuadratik dan kubik dengan menggunakan kombinasi knot.
INFLUENCE OF REPETITIVE WORK ON WORK PRODUCTIVITY ON DEPARTMENT OF PACKAGING
Authors: Walujo Djoko Adi
Published: February 2020

Sealing process requires an ergonomic attitude in work. If work posture is not ergonomic it can cause musculoskeletal system disorders. The purpose of this research to know the effect of repetitive work on work productivity on sealing activities in the packaging department based on RULA method. Data collection is done by direct observation and interview. Data obtained are analyzed, then the acquisition of grand scores is categorized based on the action level of the RULA. The posture of sealing process in the packaging department is in the fourth level action category which means that there is need for investigation and possible repairs.
RE-LAYOUT PRODUCTION FACILITY BREAD USING FTC AND ARC METHOD IN PT. XYZ
Authors: Prihono Prihono
Published: February 2020

Layout arrangements are vital for improving quality, productivity and corporate image. A production requiring multiple machines and a production process flow that is too long necessitates the preparation of a detailed layout in order that there is no transfer flow movement in the production process. This study aims to make the production process has a total minimum displacement moment and increase employee performance. From the analysis conducted at PT. XYZ that produce bread shows the existence of long distance, motion behind and congestion during material handling. The result of analysis by using method from to chart shows that the distance of material transfer distance is 73, 70 meter, total frequency of material transfer 35 times and mileage with total 1,901 meter. The result of analysis using activity relationship chart where spray & seeding (J) and split machine (K) departments were moved close to proofing room 1 (H1) and proofing room 2 (H2) facility, rack & pan 1 (I1) facility was moved near With rack, tray & pan cleanning (G) area facilities and the sieving flour (B) and formula room (D) departments being moved close to the process area 2 (C2) facility.
APLICABLE HORIZONTAL WIND TURBIN MODEL FAMILY SCALE
Authors: Rahayu Nitabian Iftita
Published: February 2020

The aplicabel of horizontal wind turbine.  There is two alternative two develop wind turbine design that generator or blade, in order to develop horizontal wind turbine This reesearch select the partdesign to develop generator. The angle design betwen coil and magnetic field must to optimal degree. There are seven angle from 60 degree to 120 degee which angle test. There is range of the optimal degree from 80 degree to 100 degree to develop wihd turbine.
CONTROL SYSTEMS OF LEVEL BUILDING LIGHT BASED ON ARDUINO AND ANDROID VIA BLUETOOTH WITH MIT INVERTOR
Authors: Bastari Winarno Fadjar
Published: February 2020

The automatic home control system is currently one of the interesting discussions to be developed, there are many innovations that can be done to facilitate human work in controlling the tools contained in the house. One of them is the use of android for controlling the tools that are inside the house and MIT Invertor is a software for making android applications with a design designed according to the design of the house. The control of home appliances / electronic devices that are often used nowadays are many that are integrated with mobile / smartphone devices. This study aims to design an automated home control system that can facilitate human activities in the home such as turning on and off lights and other electronics by using Android devices as a controller and using the HC-05 bluetooth module as a communication tool. The results of this study can show that the Android application can replace the function of the switch for controlling home appliances.
APPLIED PRODUCTIVITY MEASUREMENT WITH OBJECTIVE MATRIX (OMAX) METHOD (Case Study: Service Department in PT. Astra International Tbk Auto 2000 - Kenjeran Branch)
Authors: Suparto Suparto
Published: February 2020

Astra International Tbk. Auto 2000 branch Kenjeran is a company department in sales, service and spare parts services. To evaluate the productivity in the service department for this time, it is necessary to measure productivity properly and correctly because productivity measures can be used as material for consideration in carrying out an upcoming productivity planning. This research was conducted in January-December 2013. The productivity method used is the Objective Matrix (OMAX) method. From the results of productivity measurements, it is known that the best productivity occurs in July, which is equal to 768.8, well above the standard value of 300. The worst productivity occurred in February, which amounted to equal 174,8. From the achievement of the score it can be seen that the criteria that do not contribute to the productivity index are criteria 1, namely the comparison between unit handling and the use of working hours because it has the smallest score to equal 47. The strategy for increasing productivity is to evaluate the causes of decreasing productivity in the lowest criteria.
TASMIMOPANAS : Modified Paper Using Waste of Pineapple as Purifier of Waste Cooking Oil
Authors: Alfarisi Salman
Published: February 2020

Cooking oil was necessary of household to used when processed food ingridients. Waste cooking oil was contained free radicals can potentially oxidize organs. This problem overcome with rice straw and waste of pineapple which waste cooking oil was recycled by them. The utilization cellulose component on rice straw and waste of pineapple  as natural active carbon can helped this problem. The absoption of subtances in waste cooking oil used paper from rice straw which heat together with Na2SO3 solvent while grinding processed with waste of pineapple to made pulp.
REDUCING THE NUMBER OF PACKAGING IN THE CODING PROCESS AT PACKAGING UNIT USING THE SIX SIGMA METHOD
Authors: Nurcahyanie Yunia Dwie
Published: February 2020

Non-dairy creamer is a product made at PT. NDC as a substitute for milk or cream, which is a fat emulsion product. Krimer is packed with a 25kg small bag with an updated coding according to the lot, production time, production date, product name, and packaging date expiration date. Often there is an error in the packaging unit, especially at the coding stage with the wrong non-dairy creamer packaging code that causes packaging defects. The defects in packaging focused on the coding stage, have to be minimized. The research uses the Six Sigma method as a useful tool to increase productivity and product quality. With DMAIC Discussion (Define, Measure, Analyze, Improve, and Control). Through data processing and analysis using the DMAIC cycle obtained three types of packaging defects, namely cryptic code, double code and wrong code from the three defects obtained percentage value of cryptic code 63%, double code 44% and wrong code 42% and obtained an average value sigma 3.71 with a DPMO value of 13,553
RISK ASSESSMENT ON INSTALL AND DISMANTLE SCAFFOLDING USING TASK RISK ASSESSMENT METHOD
Authors: Azura Talitha Cornelia
Published: February 2020

Accidents can occur anytime and anywhere such as accidents that occur at work at height. This study aims to identify and analyze potential hazards in the install and dismantle scaffolding work using TRA (Task Risk Assessment) method. The results of the risk assessment using TRA on this work obtained four job description with 2 jobs at low risk, namely initial risk of 4 and after controlling for residual risk of 2. For install and dismantle scaffolding show that medium risk was obtained with an initial risk of 12 and after controlling, the residual risk becomes 9.
CAPACITY TO REDUCE TOTAL DISSOLVED SOLIDS (TDS) LEVELS IN THE IMPLEMENTATION OF ERGONOMIC WATER KNOCK FILTERS
Authors: Santoso Gempur , Wiyarno Yoso , Poniman Poniman
Published: February 2020

Clean water is very important forlife. Provision of clean water is still a problemin Indonesia. 80% of Indonesia's populationstill consumes water that is not in accordancewith health standards. Whether ergonomicwater filters knock down for clean watersupply is the consumer's interest in waterusers. This ergonomic knock down water filterall parts are easily removed, carried easily,then reassembled where the location requireswater as long as there are waterways to getclean water. The design of this study iscomparative and experimental descriptive.Large sample of 30 people who use waterfilters. Place of Research in the IndustrialEngineering Ergonomics Laboratory, PGRIAdiBuana University Surabaya, Indonesia.Data is taken by observation, questionnaire,and experimental results. Data were analyzedusing descriptive percentages. The resultsshowed that 73.3% water filter material chosestainless steel. Ergonomic knock down waterfilters have the ability to reduce levels of totaldissolved solids (TDS) from 380 ppm to 156ppm, down 224 ppm (41%). Conclusions: 1)water filter users have the highest interest inchoosing filters made of stainless steel, areeasily installed and used ergonomically, andanti-oxidation does not cause corrosion; 2) thewater yield from ergonomic knock down waterfliter is 41% clearer than before filtering.Suggestion: To implement the QualityFunction Deployment of a knock down waterfilter, ergonomics are expected to be guided byanalytical analysis according to theconclusions above.
DESIGN OF VERTICAL AXIS SAVONIUS WINDMILL FOR GENERATING ELECTRICITY USING PERMANENT MAGNET
Authors: Rochman Sagita
Published: February 2020

At present the use of wind energy in Indonesia is still relatively low, but has enormous potential. One reason is because the average wind speed in the territory of Indonesia is classified as low wind speed, which ranges from 3 m / s to 5 m / s making it difficult to produce electrical energy on a large scale. However, the wind potential in Indonesia is available almost all year long, making it possible to develop small-scale power generation systems. Innovations in modifying windmills need to be developed so that in conditions of low wind speeds can produce electrical energy.

In this research, a prototype was developed by designing a vertical axis windmill power plant model Savonius using a permanent magnet generator, which can produce optimal electrical energy by utilizing relatively low wind speeds.From the generator test it was found that with a rotor rotation of 50 rpm up to 500 rpm can produce an electrical voltage of 0.02V to 10V and an electric current of 0.60A to 4.53A.
SOVIET POLICY AGAINST RELIGIOUS INSTITUTIONS AND RELIGIOUS LEADERS IN THE 20-30s OF THE 20th CENTURY
Authors: Abdurazzakovich Khoshimov Soibjon
Published: February 2020

The article analyzes Soviet policy in the 20-30s of the 20th century against religious institutions and religious scholars using archival documents and scientific literature.
KEY WORDS: Soviet government, October overturning, religious establishment, religious scholars, literature, art, church, madrassah.
IRRIGATION AND LAND-RECLAMATION HISTORY OF UZBEKISTAN
(As an example of the 50-80s of XX century)
Authors: Kamilovich Komilov Oybek , Kuchkarov Khabibullo
Published: February 2020

Based on solid scientific literature and archival sources, the article comprehensively reveals the history of irrigation and land reclamation in 1950-1980 in Uzbekistan to further expand irrigation networks in order to plant a monoculture of cotton in the republic, as well as its consequences.
KEY WORDS: irrigation, irrigation canal, pumping station, siphon, collector, drainage, Soviet government, centre, cotton monopoly.
THE INFLUENCE OF EMOTIONAL AFFINITY TOWARD NATURE AND INSTITUTIONAL SUPPORT ON ENVIRONMENTAL RESPONSIBILITY BEHAVIOUR: A RELIABILITY TEST
Authors: Uthama puthran Logeswari , Ahmad Fais , Hassan Hazlinda
Published: February 2020

Over the last few decades, environmental issues such as global warming, acid rain, air pollution, urban sprawl, waste disposal, ozone layer depletion, water pollution and climate change have facing concern among prominent world organisational annual meeting and occasions. Almost media covers the environmental and sustainability issues in their daily publications. Malaysia as a developing country starving to survive with annual climate change issues such as flash floods, haze, water and air pollution and increasing seasonal sicknesses. In conjunction, government, policymakers, learning institutions, and Non-Government Organisations (NGOs) play their role in educating people to attain sustainability lifestyle. Specifically, institution leaders as a change agent encourage adapting environmental behaviour to enhancing environmental attitude and behaviour among their stakeholders. Therefore, the purpose of this study is to test the reliability of environmental responsive behaviour, specifically among school leaders in Malaysia. For this study, 503 samples were used to test reliability. The findings indicated that all examined variables consistently reflect the construct it is measuring. Hence, adapted measurement items are reliable to use in future studies.
Differing Effect of an EMG Biofeedback-­Monitored Exercise Compared to an Un-­monitored One in Vastus Medialis Obliquus and Vastus Lateralis Muscles Amplitude in Knee Osteoarthritis
Authors: Umi Syayyirotin A  , Lukitra Wardhani  , Fatchur Rochman
Published: February 2020

Objectives: The objective of the study was to know the difference of maximum and ratio amplitudes of vastus medialis obliquus and vastus lateralis muscles before and after exercise with and without EMG biofeedback monitoring in knee osteoarthritis patients.Methods: Randomized clinical study design. This study was conducted in Department of Physical Medicine and Rehabilitation Airlangga University, Dr. Soetomo hospital Surabaya. Twenty eight patients with knee osteoarthritis were randomly placed into 2 groups, the first group received progressive resistive exercise with EMG biofeedback, while the other group received training with progressive resistive method only. The ratio and maximum amplitudes of vastus medialis obliquus and vastus lateralis muscles were analyzed before and after 8 weeks exercise.Results: The amplitudes of vastus medialis obliquus and vastus lateralis were improved significantly in group receiving progressive resistive training method with EMG biofeedback monitoring (p=.01 and p=.001, respectively). Comparison between two groups after 8 weeks of progressive resistive exercise showed significant improvements on amplitude of vastus medialis obliquus muscle (p=.014) and amplitude ratio of VMO/VL (p=.034) in EMG biofeedback monitoring group.Conclusions: Progressive resistive exercise with EMG biofeedback monitoring could improvesignificantly the amplitudes of vastus medialis obliquus and vastus lateralis muscles and amplitude ratio of VMO/VL in knee osteoarthritis patients.Keywords: knee osteoarthritis, progressive resistive exercise, EMG biofeedback monitoring.
Comparison of Language Ability and Speech Production BetweenConstraint Induced Aphasia Therapy and Standard Speech Therapy for Chronic Broca Aphasian After Stroke
Authors: Dian Kusumawati  , Ratna D Haryadi
Published: February 2020

Objectives : The objective of this research is to determine an effective speech theraphy methods on post stroke patient with chronic aphasia BrocaMethods :A randomized controlled trial involeved fourteen patients with Broca’s Aphasia post stroke that divided into 2 groups : Group I –7 patients underwent 2 weekly sessions of Constraint Induced Aphasia Therapy (CIAT), 5 times a week, one hour for each session. Group II – 7 patients underwent 3 weekly sessions of standard method speech therapy, 3 times weekly and one hour for each session upto 10 hours. All patients were examined using Communicative Activity Log (CAL) to evaluate language ability and Functional Independence Measurement (FIM), expression communication’s subtest toevaluate speech production. CAL and FIM were performed pre and post therapy sessions.Results : Language ability and speech production were are increasing after CIAT (p=0,015) and also in group of standard methods of speech therapy as well (p=0,016).Conclusions : CIAT and standard speech therapy methods significantly increase language ability and speech production in stroke patients with chronic Broca aphasia.Keywords : Constraint Induced Aphasia Therapy (CIAT), standard speech therapy methods, Broca’s Aphasia post stroke.
Effect of Neuromuscular Electrical Stimulation on Swallowing Process in Stroke Patient with Neurogenic Dysphagia
Authors: Ruth Ariyani  , Widjajalaksmi  , Luh K Wahyuni  , Susyana Tamin  , Saptawati Bardosono
Published: February 2020

Objective: The aim of this study to determine the therapeutic effect of Neuromuscular Electrical Stimulation (NMES) on pharyngeal phase of swallowing for stroke patients with neurogenic dysphagia,and to see the effect of NMES in reducing the incidence of standing secretion, residue, penetration and aspiration.Methods: It is a quasi-­experimental study design. 10 stroke patients with neurogenic dysphagia in Cipto Mangunkusumo hospital, Jakarta, 40-­80 years old with hemodynamically stable, cooperative and will be get NMES therapy for 4 weeks. Pre and Post treatment assessment caompared using a modified MASA test (The Mann Assessment of Swallowing Ability) and FEES examination (Flexible Endoscophic Evaluation of Swallowing). Analysis of change scores using Wilcoxon test.Results:The obtain average age of patients 59.80+9.705 years. Significant difference seen in the pharyngeal phase of swallowing increased score of gag reflex, velum elevation, cough reflex, voluntary cough, voice quality, pharynx response, pharyngeal constrictor contraction and vocal cord adduction (p<0.005).Also seen significant reduction in the incidence of standing secretion, residue and penetration (p<0.005), but not significantly in the incidence of aspiration (p=0083).Conclusions: NMES increased the pharyngeal phase of swallowing, reduced the incidence of standing secretion, residue and penetration of stroke patients with neurogenic dysphagia, but have not able to reduced aspiration.Keywords :Neuromuscular Electrical Stimulation (NEMS), neurogenic dysphagia, MASA test (The Mann Assessment of Swallow ing Ability), FEES examination (Flexible Endoscophic Evaluation of Swallowing), swallowing process.
Associations among the Degree of Hip Adductor Spasticity, the Level of Gross Motor Function Classification System (GMFCS) and the Migration Percentage in Children with Cerebral Palsy
Authors: Lindrawati Tjuatja  , Wahyuni Luh Karunia , Aryadi Kurniawan  , Damayanti Sekarsari  , Hamzah Shatri
Published: February 2020

Objectives : This study was aimed at detecting the occurrence of hip dislocation in children with cerebral palsy (CP) by seeking the association among the degree of hip adductor spasticity, level of Gross MotorFunction Classification System (GMFCS) and Migration Percentage (MP).Methods : It was a cross sectional study with inclusion criterias were children with cerebral palsy, both male and female aged 2-10 years old, and parent’s approval by signing informed consent. Exclusion criterias werecomorbidities of other neuromotor impairments, such as spina bifida; other neuromuscular or musculoskeletal diseases, etc; uncooperative; and presenting severe diseases at the day of assessment. Measurement methodsincluded the Modified Tardieu Scale (MTS) R2, R1 and R2-R1 components to measure hip adductor spasticity; Gross Motor Function Classification System (GMFCS) protocol to assess gross motor ability; andAnterior-Posterior (AP) pelvic plain radiograph to calculate the Migration Percentage (MP) value.Results : At the initial phase, 31 children were included, however only 57 legs were analyzed for hip adductor spasticity and MP. There were no correlation between the degree of hip adductor spasticity and MPboth the R2 with MP (r = -0.060; p = 0.658), and R1 with MP (r = -0.136; p = 0.314). Moreover, there was insignificant difference between level of GMFCS and MP (p = 0.831).Conclusion : This study indicates nill correlation between the degree of hip adductor spasticity and the MP, and insignificant difference between the level of GMFCS and MP to detect the occurence of hip dislocationin children with cerebral palsy.Keywords : Modified Tardieu Scale, R2, R1, level of GMFCS, AP pelvic plain radiograph, MP value.
Effectiveness of Taping for the Short-Term Treatment of Pain and Walking Speed in Patients with Plantar Fasciitis
Authors: Mira Muhammad  , Angela BM Tulaar  , Rosiana Pradanasari  , Saptawati Bardosono
Published: February 2020

Plantar fasciitis causes pain in the heel and medial arch of the foot can interfere daily activities. Taping theplantar fasciitis will reduce pain by reducing strain on the plantar fascia during standing and ambulation.Objective: to see the effect of taping on pain and walking speed.Methods: fifteen subjects received taping and ultrasound diathermy therapy for one week. Fifteen othersubjects received ultrasound therapy alone. Pain measured by Visual Analogue Scale (VAS) and the walkingspeed is measured in meters / sec.Results: VAS score started to differ significantly on the first day after treatment (p = 0.008) and continuesuntil the last day of evaluation. On the first day, the VAS score changes differs significantly (p = 0.002). Butin the evaluation of the days, the change of VAS scores were not significantly different. VAS score changes onthe seventh day compared to the initial evaluation found significant (p <0.001). With multivariate analysis ofrepeated measurements, VAS scores in each group decreased significantly (p <0.001), but the decrease in VASscore taping group were significantly better compared with non-taping group (p = 0.004).Conclusion: combination of taping and ultrasound diathermy for people with plantar fasciitis can be used asa modality to reduce pain more quickly.Keywords:plantar fasciitis, taping, ultrasound diathermy, visual analog scale, walking speed.
Role of Physical Medicine and Rehabilitation in Phantom Pain Management
Authors: Yudith Dian Prawitri  , Ratna Darjanti Haryadi
Published: February 2020

Limb amputation often results in the alteration of painful (phantom and stump pain) and nonpainful sensoryexperiences (phantom sensation). It is important to know the characteristics of sensory experiences to avoidmistakes in identifying phantom pain. Phantom pain can cause disability for patient, disturbance in mobility,and deteriorate the quality of post-amputated patient. Management of phantom pain include pharmacologytreatment, surgery, anasthesia also psychotherapy. Physical medicine and rehabilitation program such asphysical therapy, biofeedback, desensitization, occupational therapy, mirror therapy, and applying prosthesisshould be performed not only to manage the pain, but also to improve functional level to increase patient’squality of life.Key Words: Amputation; Phantom limb pain; Stump pain; Sensation; Rehabilitation.
Growing Pains
Authors: S.M Mei Wulan
Published: February 2020

Growing pains (GP) are common in children due to chilhood musculoskeletal pain. The prevalence ofgrowing pain ranges from 3-37% of children. GP have typical clinical characteristics, but the etiology andits development into non-inflammatory pain syndromes remain inconclusive. GP are not associated withserious organic disease and specific laboratory evidences. The most important action to take is to distinguishbetween benign and severe muskuloskeletal pain in children for addressing proper treatment. The mostappropriate intervention is to explain the natural course of GP, that are administering long acting analgetic atnight under certain circumstances, and applying heating pad, massage and stretching exercise during the day.Keywords: growing pain, benign musculoskeletal pain, non-inflamatory pain
ZAGROŻENIA I OCHRONA CENNYCH SIEDLISK PRZYRODNICZYCH W POLSCE NA PRZYKŁADZIE MURAW KSEROTERMICZNYCH
Authors: Hanczaruk Robert , Bąba Wojciech
Published: February 2020

Murawy kserotermiczne to jedno z najbardziej zagrożonych siedlisk przyrodniczych w Europie, objęte ochroną w ramach sieci Natura 2000. Zmiany w sposobie użytkowania gruntów (zalesianie, zabudowa), zaniechanie ekstensywnego użytkowania, sukcesja wtórna i brak aktywnej ochrony siedlisk (wypasanie, wykaszanie) przyczyniły się do utraty wielu cennych płatów roślinności kserotermicznej. Odtwarzanie najsilniej zdegenerowanych muraw kserotermicznych obejmuje eliminację ekspansywnych i inwazyjnych gatunków roślin zielnych, krzewów i drzew, reintrodukcje taksonów murawowych oraz transplantację dobrze zachowanych fragmentów muraw. W przypadku siedlisk dobrze zachowanych ważne jest stałe usuwanie nadmiaru gromadzącej się biomasy. Istotne znaczenie dla zachowania muraw kserotermicznych mają mechanizmy finansowe, wspierające tradycyjne pasterskie formy użytkowania rolniczego z udziałem społeczności lokalnych oraz działania ukierunkowane na podnoszenie poziomu świadomości ekologicznej turystów.
WPŁYW WSPÓŁCZESNYCH ZAGROŻEŃ ANTROPOGENICZNYCH I NATURALNYCH NA KORALE RAFOWE
Authors: Koroza Aleksandra
Published: February 2020

Zagadnienie wpływu działalności ludzi na środowisko, np. nadmierne połowy prowadzące do wyeliminowania kluczowych drapieżników z ekosystemów, emisja gazów cieplarnianych, zmiana klimatu czy wprowadzanie ścieków do wód, jest problemem często dzisiaj poruszanym w nauce i mediach. Jednym z ekosystemów zagrożonych taką działalnością są rafy koralowe. Są one tworzone przez koralowce żyjące w symbiozie z wieloma organizmami np. algami Symbiodinium, które dostarczają koralom związków odżywczych, w zamian za możliwość życia w ich tkankach i łatwy dostęp do światła. Korale są też ważne dla wielu organizmów, które znajdują dzięki nim schronienie czy pokarm, np. papugoryb odżywiających się koralami czy jeżowców odżywiających się matami glonów pokrywających korale i samymi koralami. Zła kondycja raf koralowych może więc nie tylko pozbawić domu i pokarmu, ale też wywołać choroby związanych z nią organizmów. Celem artykułu jest omówienie zagrożeń dla korali i związanych z nimi niekorzystnych zmian oraz możliwe strategie poprawienia stanu rafy.
DETEKSI SENYAWA METABOLIT SEKUNDER JAMUR ENDOFIT DARI AKAR TANAMAN KARET (Hevea brasiliensis)
Authors: Lestari Widya
Published: February 2020

Endophytic fungi are a group of fungi whose part or whole life is in living plant tissue and usually does not harm the host. Endophytic fungi generally produce secondary metabolites that have beneficial biological activities such as anti-cancer compounds, antifungi or antibacterials. Control of plant diseases caused by Rigidoporus microporus and Ganoderma boninense can be done by using biological agents, namely by using endophytic fungi. This fungus has metabolite compounds that can inhibit the growth of Rigidoporus microporus and Ganoderma boninense. This study aims to determine what content is found in endophytic mushroom extracts isolated from rubber plants (Hevea brasiliensis). Endophytic fungi are extracted by maceration using methanol and ethyl acetate solvents. The extract was tested for antifungal activity using diffusion method. The content of secondary metabolites was tested by phytochemical test. The results of endophytic fungal extraction with methanol and ethyl acetate solvents resulted in antifungal activity with inhibitory zones in a row namely WL01: 2.19 and 2.15 mm Fungi Isolates on Ganoderma boninense while 3.09 mm WL02 against Rigidoporus microporus Based on the phytochemical test results, endophytic fungal extract with methanol and ethyl acetate solvents showed the presence of alkaloid, flavonoid, phenol and saponin. Keywords: endofit, fungi, hevea, secondary metabolites
ANALISIS PERJANJIAN KESEPAKATAN MASYARAKAT MENGENAI PENCURIAN BUAH KELAPA SAWIT DITINJAU DARI PERATURAN MAHKAMAH AGUNG NOMOR 2 TAHUN 2012 (Studi Kasus di Desa Bandar Selamat Kecamatan Aek Kuo Kabupaten Labuhanbatu Utara)
Authors: Sitompul Denni Maruli , Ritonga Muhammad Khoirul , Toni Toni
Published: February 2020

Penelitian Ini membahas tentang analisis penjanjian kesepakatan masyarakat mengenai pencurian buah kelapa sawit ditinjau dari peraturan Mahkamah Agung Nomor 2 Tahun 2012 ( studi kasus di desa Bandar Selamat kecamatn Aek Kuo Kabupaten Labuhanbatu ), fokus penelitian melihat pada kedudukan perjanjian kesepakatan masyarakat tentang pencurian buah kelapa sawit, penelitian ini menggunakan jenis penelitian kualitatif, dengan menggunakan pendekatan studi kasus, data diperoleh melalui hasil angket , tes wawancara dan studi pustaka. Teknik pengumpulan data dengan menggunakan metode observasi, wawancara dan dokumentasi. Adapun hasil dari penelitian ini adalah perjanjian kesepakatan masyarakat mengenai pencurian buah kelapa sawit di Desa Bandar Selamat Kecamatan Aek Kuo Kabupaten Labuhanbatu tidak berkekuatan hukum dan sangat bertentangan dengan Peraturan Mahkamah Agung Nomor 2 Tahun 2012 karena didalam peraturan Mahkamah Agung Nomor 2 Tahun 2012 sudah diatur dalam BAB II pasal 3 mengenai tentang Denda dan didalam Perjanjian Kesepakatan masyarakat terdapat didalamnya mengenai tentang Denda yang melebihi Batas yang sudah di atur dalam Peraturan Mahkamah Agung Nomor Tahun 2012 yaitu 1.000.000,00 (satu juta rupiah) per janjang.
PENGARUH MODEL PEMBELAJARAN DAN SELF EFFICACY TERHADAP KEMAMPUAN PEMECAHAN MASALAH SISWA PADA MATERI SISTEM EKSKRESI
Authors: Harahap Hasmi Syahputra , Dongoran Herawati
Published: February 2020

Penelitian ini bertujuan untuk mengetahui pengaruh serta interaksi model pembelajaran dan self efficacy terhadap: (1) Kemampuan pemecahan masalah siswa kelas XI di MAN 1 Medan. Metode penelitian menggunakan kuasi eksperimen dengan sampel penelitian sebanyak 3 kelas dari 6 kelas XI IPA yang diambil dengan menggunakan metode  purposive sampling. Instrumen penelitian menggunakan tes kemampuan pemecahan masalah dan keterampilan proses sains siswa dalam bentuk tes uraian, dan nontes berupa angket self efficacy. Teknik analisis menggunakan statistik deksriptif dan Statistic Inferensial Parametric atau Multivariate Analysis of Variance (MANAVA) dengan taraf signifikan 5% dengan SPSS 20. Hasil penelitian menunjukkan: (1) Ada pengaruh yang signifikan model pembelajaran terhadap kemampuan pemecahan masalah (p=0,024<0,05); (2) Ada pengaruh yang signifikan self efficacy terhadap kemampuan pemecahan masalah (p=0,000<0,05); (3) Ada interaksi yang signifikaan antara model pembelajaran dan self efficacy siswa terhadap kemampuan pemecahan masalah (p=0,004<0,05). Sebagai tindak lanjut dari hasil penelitian ini diharapkan kepada guru untuk dapat menerapkan model pembelajaran dan self efficacy pada materi sistem ekskresi dalam upaya meningkatkan kemampuan pemecahan masalah, dan keterampilan proses sains siswa di sekolah
Pembelajaran Berbasis Masalah dalam Meningkatkan Kemampuan Pemecahan Masalah Matematika
Authors: Noviantii Erna , Yuanita Putri , Maimunah Maimunah
Published: February 2020

This study aims to improve the learning process and the student’s mathematical problem solving skill by applying Problem Based Learning (PBL) model. This type of research is classroom action research with two cycles. This research was conducted in collaboration between researcher and teacher of mathematics. Subjects were students of class  SMPN 9 Pekanbaru. Study was conducted in the odd semester   of   academic   year   2019/2020.   The   research   instrument   consists   of mathematical learning instruments and instruments to collect data. Mathematical learning instruments used in this study are syllabus, lesson plans, and activity sheets. Data collection instruments used in this study is observation sheets and mathematical problem solving tests. Data analysis technique in this study is analysis descriptive narrative of qualitative data and descriptive statistical analysis of quantitative data. The result of this study showed that the implementation of PBL improved the learning process and the student’s mathematical problem solving skill. The student’s average value in cycle I which is 70,27 had improved to 84,07 in cycle II. The improvement also found in the indicator average value in understanding the problem (94,99), planning a solution (69,71), implementing the pland (82,77), and checking again (54,85). This study concludes that the implementation of PBL improved the student’s mathematical problem solving skill at class  SMPN 9 Pekanbaru.
Pengaruh Media Pembelajaran Geogebra Pada Materi Fungsi Kuadrat Terhadap Motivasi dan Hasil Belajar Peserta Didik
Authors: Hamidah Nur , Afidah Iis Nur , Setyowati Lutfi Wahyu , Sutini Sutini , Junaedi Junaedi
Published: February 2020

This study aims to determine the effect of Geogebra learning media on the quadratic function material on motivation and learning outcomes in class IX MTsN Gresik. The method of this research used experimental research mapped in class IX –C and IX-D. Class IX-C as a control class and class IX-D as an experimental class. Where each class there are 28 students. Data collection techniques used were pretest, post-test and questionnaire. Pretest and post-test were used to determine effect of Geogebra on student learning outcomes, while the questionnaire was used to determine the effect of Geogebra on students’ learning motivation. Data analysis uses z-test analysis. The results of the study showed that : (1) Geogebra learning media on quadratic function material influences students’ learning motivation, (2) student learning outcomes using Geogebra learning media on quadratic function material are better than students who do not use Geogebra.

Keyword: Geogebra, motivation and learning outcomes, quadratic function.
Model Pembelajaran Missouri Mathematics Poject Terhadap Kemampuan Pemecahan Masalah Matematis Ditinjau dari Self Confidence Siswa
Authors: Hartono Hartono , Huda Niasika Nurul , Prihatin Iwit
Published: February 2020

The purpose of this research, to see the difference between the model of Missouri Mathematics Project learning and conventional learning on mathematical problem-solving abilities in terms of students' self-confidence. The method used in this research is an experimental with kind of a Quasi-Experimental, and the research design is a 2x3 factorial design. The population in this study were all students of class XI MIPA of SMA Negeri 6 Pontianak consist of four classes, with class XI MIPA III and XI MIPA IV samples selected by the Cluster Random Sampling technique. Based on the analysis of variance of two paths with unequal cells it is concluded that: 1) The Missouri Mathematics Project learning model provides better mathematical problem-solving abilities compared to conventional learning in the matrix material. 2) Students who have high, medium and low self-confidence have no difference in the ability to solve mathematical problems in the matrix material. 3) In each learning model, students with high, medium and low self-confidence do not provide differences in mathematical problem solving between self -confidence found in themselves. 4) At each level of students' self-confidence, the Missouri Mathematics Project learning model provides better mathematical problem-solving skills than conventional learning.
Pemahaman Materi Bangun Ruang dengan Berbantuan GeoGebra
Authors: Arsita Delia Dwi , Nurul Hidayah Mufidatul Ummah , Faradiba Surya Sari
Published: February 2020

This study has purpose to explore the use of GeoGebra in understanding concept of building up space. It is based by the fact that the ability to understand building space six grade elementary school in the city of Malang is still low. based on research conducted in the oddest semester of 2019/2020 obtained at least 6 of 10 elementary school students in one of the private elementary schools in Malang city have difficulty to understanding the concept of building space. In this case, it can be seen that the ability of understanding material build space is still not honed well. This research is a qualitative research, the type of this study is case study. The instrument in this study is a test problem related to the building space, and interview guidelines. In this study, the description of data analysis and meaning interpretation of finding is using text analysis. The results show that the subjects easier to understand the concept of building space with GeoGebra, because it uses the subject GeoGebra can see the building in 3D.
REVIEW LITERATUR : ADULT LIFE SATISFACTION
Authors: Megawati Fitria Erma
Published: February 2020

Artikel ini bertujuan untuk melakukan review terhadap penelitian tentang kepuasan hidup pada orang dewasa. Prosedur review dilakukan pada sebelas hasil penelitian yang telah diterbitkan dalam jurnal internasional antara tahun 2014 hingga 2018. Hasil review menunjukan bahwa kepuasan hidup atau life satisfaction orang dewasa memiliki pengaruh positif pada religiusitas, yang dapat diartikan bawah mereka dapat merasa rasa puas dalam dirinya ketika melakukan kewajiban sesuai agama yang dianut. Selain itu, orang dewasa yang mampu meyelesaikan permasalahannya dan mengetahui kebutuhan diri maka dapat mencapai kepuasan hidup. Melalui kesimpulan dari hasil review, penulis memberikan rekomendasi untuk penelitian selanjutnya, khususnya penelitian di Indonesia yang memiliki keberagaman budaya dan kepercayaan agama.Kata kunci: kepuasan hidup, dewasa
‘New Regionalism’: ASEAN – RoK partnership in socio-cultural and education exchanges
Authors: Rosland Nur Nazifah Ahmad
Published: February 2020

ASEAN and South Korea have achieved substantial progress in political and economic relationship since 1989, when they first established a dialogue partnership. In 2010, their relationship further developed into a ‘Strategic Partnership in Peace and Prosperity’. ASEAN and South Korea share a common interest in promoting peace, stability, and prosperity in the region and beyond. ‘New regionalism’ theory has become current interest in regionalism and is undoubtedly one of the important trends in contemporary international relations. This theory focuses more on ‘deep integration’ between countries. ASEAN and South Korea emerged from the same root of colonization and escalated to become the second largest trading partner with its relationship thriving in tourism and educational sector. In this study, I focus on the development of ‘new regionalism’ in ASEAN and Republic of South Korea partnership as well as their regional integration efforts in the area of socio-culture and education. The study contributes to the existing knowledge of regionalism between ASEAN-Korea; the mutual relationship which emerged from economic and political-security into the area of socio-culture and education.
Utilization of Waste of Enzymes Biomass as Biosorbent for the Removal of Dyes from Aqueous Solution in Batch and Fluidized Bed Column
Authors: Abbas Salman H. , Younis Younis M. , Hussain Mohammed K. , Kamar Firas Hashim , Nechifor Gheorghe , Pasca Bianca
Published: February 2020

The biosorption performance of both batch and liquid-solid fluidized bed operations of dead fungal biomass type (Agaricusbisporus ) for removal of methylene blue from aqueous solution was investigated. In batch system, the adsorption capacity and removal efficiency of dead fungal biomass were evaluated. In fluidized bed system, the experiments were conducted to study the effects of important parameters such as particle size (701-1400�m), initial dye concentration(10-100 mg/L), bed depth (5-15 cm) and solution flow rate (5-20 ml/min) on breakthrough curves. In batch method, the experimental data was modeled using several models (Langmuir,Freundlich, Temkin and Dubinin-Radushkviechmodels) to study equilibrium isotherms, the experimental data followed Langmuir model and the results showed that the maximum adsorption capacity obtained was (28.90, 24.15, 21.23 mg/g) at mean particle size (0.786, 0.935, 1.280 mm) respectively. In Fluidized-bed method, the results show that the total ion uptake and the overall capacity will be decreased with increasing flow rate and increased with increasing initial concentrations, bed depth and decreasing particle size.
Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles
Authors: Cavalu Simona , Vicas Simona , Costea Traian , Fritea Luminita , Copolovici Dana , Laslo Vasile
Published: February 2020

Selenium-doped titania nanoparticles were prepared and characterized from physico-chemical and morphological point of view, with the aim possible applications in photocatalysis. DLS measurement indicated that TiO2 particles presents two different components: the first one, with low concentration and maximum size distribution at about 20 nm, and second one, with high concentration and size distribution ranging from 40 to 250 nm (maximum at 100 nm). After doping procedure and thermal treatment at 800 ͦ C, the size distribution reveals the formation of nanoparticles with wide range of diameters, from 20 nm to 500 nm, with good stability, as demonstrated by Zeta potential values: -19 mV for TiO2 and -25 mV for Se/TiO2 particles. Ti-O-Ti and Se-O vibrational modes were identified in ATR FTIR spectra. As a consequence of thermal treatment at 800 ͦ C, morphological changes of titania particles from nanorodes to nanowires were observed. The XRD spectrum of TiO2 starting material shows the typical crystalline pattern of anatase (tetragonal), in good agreement with the standard diffraction data, while a mixture of anatase and rutile (tetragonal) was obtained after the annealing process. The results of photocatalytic activity test demonstrated that both TiO2 and Se-doped TiO2 nanoparticles can effectively decompose methylene blue under the visible light irradiation, but with Se doping, the photocatalytic capability is significantly improved.
Microstructure and Corrosion Behaviour of ZnNiP Thin Film Alloys in Deep Eutectic Solvent Ionic Liquids
Authors: Neacsu Elena Ionela , Constantin Virgil , Burada Marian , Donath Cristina , Soare Vasile , Popescu Ana-Maria
Published: February 2020

Ternary ZnNiP alloy thin films were electroless deposited from aqueous chloride electrolytes on mild steel foils. The films were characterized by scanning electron microscopy (SEM) and dispersive X-ray microanalysis (EDAX). The corrosion behaviour of ZnNiP thin films alloys was investigated in two deep eutectic solvent ionic liquids (DES) with different chemical structure at 353K and compared with corrosion in 3.5% NaCl aqueous solution at 273K. The films were characterized by X-ray photoelectron spectroscopy (XPS) to determine their chemical composition in the initial stage and after corrosion. The nature of corrosion morfology has been investigated by and electron microscopy and XPS. The value of the lowest corrosion protection efficiency was of 48.14% and the highest value was of 77.96%. The results confirmed the high corrosion resistance of ZnNiP alloy plated sheet in all ionic liquids systems tested and the results were corelated with corrosion data in aqueous solution. The passive layer consists of Zn and Ni oxides but also of the chemical compounds of nitrogen which were formed on the surface of the ZnNiP thin films during the corrosion process.
Removal and Effects of Surfactants in Activated Sludge System
Authors: Mitru Daniel , Nechifor Gheorghe , Gheorghe Stefania , Banciu Alina Roxana , Ionescu Lucian , Stoica Catalina , Ionica Daniela Liliana , Lucaciu Irina Eugenia
Published: February 2020

The widespread use of detergents has raised concern with regard to the environmental pollution caused by their active substances, which are biorefractory, toxic or persistent. Even though anionic and non-ionic surfactants often used in commercial detergents composition are reasonably degradable under aerobic conditions and not particularly toxic at low concentrations, high concentration of surfactants influenced the activated sludge activity and are harmful for the aquatic environment. In the literature, data on the biodegradability and/or ecotoxicity of a certain type of surfactant (anionic, nonionic, cationic) are usually presented. Our study aimed to assess the biodegradability of a mixture of two types of surfactants (anionic mixed with non-ionic) and also, effects caused by their presence of elevated concentrations to the activated sludge micro-organisms, within a batch experiment. We performed a biodegradability test (according Zahn-Wellens method) on 2 synthetic solutions with high concentrations of anionic surfactant �methyl dodecylbenzene sulfonate (15-25 mg/L) and non-ionic surfactant -4-nonylphenyl-polyethylene glycol (10 mg/L). The study established different percent of biodegradability (measured by COD decrease and surfactants removal) depending on initial concentrations of anionic and nonionic surfactants in the tested solutions. High surfactants concentrations modulated the activity and morphology of activated sludge, so its degradation efficiency of the organic substrate has decreased. Surfactant solutions resulting from biodegradability experiment have been tested for toxicity to planktonic crustaceans (Daphnia magna).