bluuebunny/crossref_metadata_2025 huggingface dataset:
THEORETIC AND EXPERIMENTAL SUBSTANTIATION OF A COMPOSITION OF A CREAM WITH CERIUM DIOXIDE NANOPARTICLES
Authors: Zaychenko G.V. , Liapunov M.O. , Iefanov V.S. , Bezuhla O.P. , Liapunova A.M. , Simonova O.A.
Published: December 2019

Relevance. Cutaneous malignancies are one of the most widespread form of cancer with increasing prevalence and Ukraine and worldwide. A negative impact of ultraviolet radiation is one of the risk factors of this pathology, and it can be prevented by photoprotectors. It is expedient to develop a new effective and safe sunscreen with cerium dioxide nanoparticles, which is deprived of photocatalytic properties and has prominent photoprotective and antioxidant action.

Objective: theoretic and experimental substantiation of a composition of a cream with cerium dioxide nanoparticles by the means of a screening of photoprotective action on a model of a photodynamic injury in guinea pigs with further identification of a leader cream.

Material and methods. A photodynamic injury in guinea pigs was modeled with ultraviolet emitter with an exposition of 5 minimal erythema doses. Twenty minutes prior to exposure a cream with 0.1%, 0.25% or 0.5% cerium dioxide nanoparticles or a comparator cream with 3% titanium dioxide was applied topically. A leader cream was then chosen based on the following criteria: photoprotective action, skin temperature, blood leukocyte count, and serum histamine level.

Results. The cream with 0.25% cerium dioxide nanoparticles was identified as a leader cream, because its photoprotective action was 43.6%, compared to 23.1% and 35.9% for 0.1% and 0.5% creams, respectively. After an application of the cream with 0.25% cerium dioxide nanoparticles there were less ulcers and deep skin lesions and 17.4% less leukocytosis than in pathology control group; the lowest increase (0.16 °С) in skin temperature was observed in comparison with other test creams; no increase in serum histamine level was detected.

The cream with 0.25% cerium dioxide nanoparticles was more effective than a comparator. Four hours post-exposure there was 57.1% less pronounced erythema in the leader cream group than in the cream with 3% titanium dioxide group. photoprotective action of a comparator was only 23.1%. Skin temperature in a comparator group 4 hours post-exposure was 0.26 °С higher than in the cream with 0.25% cerium dioxide nanoparticles group. Moreover, 8.6% more pronounced leukocytosis was observed in the cream with 3% titanium dioxide group, compared to the leader cream group.

Conclusions. The cream with cerium dioxide nanoparticles 0.25% was recognized as the leading sample and recommended for choosing technology and final composition of the finished dosage form, for further in-depth pharmacological study by totality of studied parameters.
IDENTIFICATION OF CORRELATION OF TEMPOROMANDIBULAR DYSFUNCTION AND CERVICAL SPINE DISORDERS
Authors: Vovk V.V. , Nespriadko V.P.
Published: December 2019

Relevance. Temporomandibular dysfunction is associated with imbalance of the whole body in static and dynamic. Myofascial Pain in Temporomandibular joint often coexist with chronic neck pain, impacting on posture straightly by changing head position or indirectly by instability of muscles chains.
Objective. This study aimed to evaluate frequency of cervical spine disorders (CSD) in case of Temporomandibular dysfunction (TMD), possible correlations between TMD and CSD  in frontal and lateral planes depends on ethiological factors.
Materials and methods. The study included 208 patients. Study group consisted of 170 patients with TMD (female – 62,9 %, male – 37,1 %). Contol group consisted of 38 patients. Subjects were examined according to international clinical protocol RDC/TMD, NDI, masticatory,neck motor system were analysed by (BioPak EMG), position of condyles and bone structure – via computed tomography, position and disc reduction – via magnetic resonance imaging, occlusion – via TScan III, cephalometric analysis (frontal, lateral view), statistical analyses with program IBM SPSS Statistic Base v.22.
Results. Female more often has temporomandibular dysfunction (62,9 %) than male (37,1 %) among the population. 47,05% were under 30 years. About 98,2 % of patients, presented complaining of Temporomandibular disorder symptoms had neck pain concomitantly and cervical spine disorders in different planes, 44,7% of patients without TMD, but with CSD, value at risk 2,2(95% VaR 1,54-3,13). Moreover 100% of those who did not report pain in the Temporomandibular joints, but presented only with clicking, had reported pain in the neck during physical examination. After examination patients were divided into 4 different clinical groups of TMD depends on ethiology-TMD-neck spinal disability. The largest is combined group – 67,67 % of total patients and is clinical manifested with TMD, spinal neck disorders in several planes. Different dysfunctional conditions between facial skull boned and cervical spine are closely interconnected with each other.
Conclusions. There is positive, mild power of correlations between muscles groups trapezius-masseter, trapezius-temporalis (r=0,477, p<0,05), sternocleidomastoideus-temporalis (0,527, p<0,05), sternocleidomastoideus-masseter (0,575, p<0,05), which indicates cooperation between facial muscles and cervical spine muscles. There is changes in cervical spine depends on clinical group: lateral group – C type scoliosis, sagittal – from straightening of cervical lordosis to kyphosis, vertical – «wave» type of cervical spine, combined – combine of pathology in different planes. Initial form of lateral group TMD is characterized as myofascial pain syndrome with specific clinical symptoms, but without condyle and disc displacement, thus it can be as an early prophylactic stage and risk of disc subluxation.
DETERMINATION OF THE QUANTITATIVE CONTENT OF PROSTAGLANDIN F2ALPHA AS A MENSTRUCTURAL MARKER
Authors: Varukha K.V.
Published: December 2019

Relevance. The issue of determining the origin of blood on material evidence is of fundamental importance to criminal investigations. But today in forensic practice there is no reliable method for determining the blood of menstrual origin. Therefore, it is important to look for a criterion that would be a reliable marker of menstrual blood.
Objective: To investigate the possibility of using prostaglandin F2alpha (PGF2α) as a marker of menstrual blood origin.
Materials and methods. Practically healthy women (n = 51) of reproductive age were examined. In group 1 (n = 28) were women 18-29 years, in group 2 (n = 23) - 30-45 years. During the examination in the women's consultation, a sample of vaginal contents during menstrual period on a tampon, a sample of vaginal contents in the extra-menstrual period and a sample of capillary blood on gauze were removed. The removed objects were dried. Prostaglandins in the samples were determined by the method of preparative isolation and systematic analysis of prostaglandins obtained by the method of biosynthesis. The quantitative content of PGF2α in the blood was evaluated directly on chromatograms, taking into account the relationship between spot area and object mass. The resulting digital material was processed statistically by variational statistics methods, with mean, deviation, mean error, Student's t-test of significant differences. The contents of PG F2α in different liquids were compared. The differences between the liquids were considered significant under the condition P <0.001.
Results. There is a dependence of PGF2α content on women's age and on the regional origin of the fluid. In women 30-45 years, the content of PGF2α is always higher in all fluids than in women 18-29 years (p <0.001): in the vaginal fluid - by 11%; in menstrual blood - by 6%; in capillary blood - by 3%.The content of PGF2α is highest in menstrual blood, compared to vaginal fluid and capillary blood. This is true for women of both ages: in women 30-45 years PGF2α content is 2.6 times higher in menstrual blood than in capillary blood, and 1.4 times higher than in vaginal fluid; in women 18-29 years PGF2α content is 2.7 times higher in menstrual blood than in capillary blood, and 1.5 times higher than in vaginal fluid.
Conclusion. A content of PGF2α above 13.1 ng / mg of dry blood tissue is a sure sign of menstrual blood origin.
PECULIARITY PERSONALITY OF ADOLESTENTS WITH ESSENTIAL ARTERIAL HYPERTENSION AND OVERWEIGHT/OBESITY
Authors: Misiura O.M. , Khaitovych M.V.
Published: December 2019

Relevance. Recent changes in lifestyle and diet have led to a significant increase of overweight and obesity among children and adolescents. According to the results of our previous studies, it was found that among adolescents with overweight/obesity, essential hypertension is 1,5-7,5 times more common than among peers. It is known that children and adolescents with obesity are inherent in emotional instability and impulsivity.

Objective of this work was to study the personality characteristics of adolescents with essential hypertension and overweight/obesity.

Materials and methods. In the Kiev Children's Clinical Hospital No. 6, a comprehensive clinical and psychological study of 67 adolescents (18 girls, 49 boys) aged 12-17 years (average of 14,40±1,63 years) was carried out, who were hospitalized for essential hypertension. Overweight was found in 7 girls and 21 boys, obesity - in 2 girls and 8 boys. The remaining patients (9 girls and 20 boys) had normal body weight (comparative group). We evaluated the level of anxiety, alexithymia, depression, the type of attitude to the disease, and also determined the personality characteristics of the patients.

Results. Adolescents with essential hypertension and overweight/obesity on average differed significantly higher pulse daily blood pressure (61,98±8,13 mmHg versus 57,02±6,70; P<0,005), lower values of anxiety scales (5,11±4,77 points versus 9,62±7,72 points; P<0,01), hypochondria (5,70±5,20 points versus 9,00±5,20 points; P<0,05), neurasthenia (7,19±7,49 points versus 11,14±7,90 points; P<0,05) and egocentrism (5,70±4,44 points versus 8,57±5,08 points; P<0,05) related to TOBOL test. According to the personality test R.-B. Kettell in adolescents with overweight/obesity was on average higher level Q2 scale (6,72±2,14 points versus 4,91±2,63 points; P<0,05).

Conclusion. Adolescents with essential hypertension and overweight, obesity, in contrast to patients with normal body weight, are less neurotic by the disease, but they are characterized by non-conformity.
ENDOTHELIAL DYSFUNCTION IN TYPE 2 DIABETES. Review
Authors: Chernobrivtsev O.P. , Zyablitsev S.V. , Panova T.I. , Panchenko Yu.O.
Published: December 2019

Relevance. The problem of systematization and refinement of modern concepts of the pathogenesis of endothelial dysfunction (EDF) and its role in the development of microvascular complications of type 2 diabetes mellitus (T2DM) is relevant due to the lack of pathogenetic treatment nowadays, which would include endothelial dysfunction.

Objective: to conduct an analytical review of the results of scientific research on the mechanisms of EDF in T2DM, with the aim of proposing an integrated modern concept of the pathogenesis of EDF.

Materials and methods. Review of scientific publications in the international electronic scientific databases of PubMed, Embase and Scopus for keywords for the entire available period (1982-2019).

Results. The article provides modern data on the modern concept of the pathogenesis of EDF and its role in the development of microvascular complications in T2DM. The pathogenesis of EDF in type 2 diabetes mellitus is based on the following key mechanisms: impaired synthesis of the endothelial fraction of nitric oxide (NO) due to inhibition of the activity of endothelial NO synthase (eNOS); decreased bioavailability of NO because of oxidative stress; activation of the formation of Endothelin-1 (ET1) and expression of endothelin receptors with a predominance of vasoconstriction; inflammation, which is supported by the synthesis of pro-inflammatory cytokines and causes the expression of inducible NO synthase (iNOS), which stimulates the synthesis of a significant amount of NO, which enters into free radical reactions with the formation of cytotoxic products.

Conclusions. The pathogenesis of endothelial dysfunction is impaired nitric oxide synthesis. Endothelial dysfunction, as an integral mechanism, underlies in the core mechanisms the development of vascular complications in type 2 diabetes.
SCAFOLDS IN PERIODONTAL SURGERY. Review
Authors: Chumachenko O.V. , Topchii D.V. , Gromovy U.S. , Plyatsko S.V.
Published: December 2019

Relevance. Substitution of bone defects in destructive periodontitis is one of the most difficult tasks of maxillofacial surgery. Today, tissue engineering, which makes up the classical triad: biomaterials + cells + growth factors, is the most effective and technologically promising for restoring the parameters and structure of the alveolar bone. Objective. The goal is to summarize  of literature data on the possibilities of using modified scaffold materials, bone morphogenetic proteins, growth factors in tissue engineering in the replacement of jaw bone defects. Materials and methods.Scientific literature search was carry out using scientometric bases such as Scopus, PubMed, Web of Science, RSCI during 18 years (2001-2018). The literature sources on the possibility of using osteoinductive and osteoconductive materials in dentistry is analyzed. Also the data on the possibility and prospects of using individual osteoregenerative drugs for periodontal diseases and for the elimination of jaw defects was analyzed. The characteristics of the composition, properties, manufacturing methods and mechanism of action of osteoplastic materials was analyzed. Results. Advantages of osteoreparative technologies using scaffolds are their sufficient hydrophilicity, the possibility of complete biocompatibility, biodegradation of the material without any toxic effects on the patient’s body, the possibility of penetration into the cell structure and different molecular sizes (including those stimulating angiogenesis), maintaining the required volume, the possibility of programming the composition and properties at the manufacturing stage and the like. Tissue-engineering constructs have shown their high mechanical and biological properties for osteogenic differentiation and cell replacement. In addition, it is possible to expand operational protocols depending on the specific anatomical and physiological conditions in each patient. Conclusion. The use of modified scaffold materials, bone morphogenetic proteins, growth factors in tissue engineering allows us to restore the structure and volume when replacing defects in the bone tissue of the jaw. Tissue engineering (matrices, growth factors, cells) is becoming an attractive clinical approach for bone regeneration.
The process of confessionalization of religious life in Ukraine is an object of scientific study
Authors: Klymov Valeriy V.
Published: December 2019

Based on the fact that the denomination is an institutional system that includes, as components, a certain doctrine, its history, religious and religious practices, church-organizational structure, membership of which identifies and unites this group of believers organizationally, ideologically, morally, dogmatically, psychologically, the confessionalization of religious life is understood
Optimization of protein extraction from green algae Chaetomorpha sp. by response surface methodology
Authors: Ngoc Minh Bach , Hoan My Huynh , Kim Anh Hoang , Ke Suong Ngo
Published: December 2019

Green brackish algae Chaetomorpha sp. are easily found in shrimp ponds in Mekong Delta, Vietnam. They can also be co-cultured with shrimps in brackish water shrimp ponds to increase shrimp health and yield. Chaetomorpha sp. algae contain high amount of protein from 10 to 20% w/w db, including water soluble protein and alkaline-soluble protein with over 88% total protein. Dried material were used for protein extraction by using cellulase enzyme (Crestone Conc., Genecor) and NaOH solution. In this research, we optimize the extraction condition of protein from green algae Chaetomorpha sp. by using response surface methodology (RSM). At optimal extraction conditions, dried material was used for protein extraction by using cellulase enzyme (Crestone Conc., Genecor) with the enzyme dosage of 121 UI/g db at 400C during 90 mins. After extraction, the slurry was centrifuged to separate the algae biomass residue to extract the alkaline-soluble protein. The protein extraction yield by using cellulase enzyme was 38.921 mg/g db. After that the, algae biomass residue was extracted by a 1.2% NaOH solution for 78 mins at 500C. The protein extraction yield was 68.651 mg/g db. The total protein extraction yield was 105.755 mg/g db. The extraction yield was increased 10.33% when using the response surface methodology. Concentrated algae protein can be used as a good protein source for food and feed products.
Methodology for assessment of the quality of learning based on negentropy
Authors: Andryushkova O. V. , Grigoriev S. G.
Published: December 2019

Methods for assessment of the quality of leaning are discussed, including possibilities to predict the results of the learning based on the calculation of negentropy. Negentropy is used as an integral informational index, demonstrating objective assessment of the learning model used. We suggest to use the emergent learning model, as a generalized projection of the learning process with substantiated merging of e-learning and traditional learning. For setting up a multi-criterial system for assessment of the quality of learning, we suggest to evaluate all components of pedagogical system in interplay with each other, on the first and all following hierarchical levels. We also suggest to define students as a special category of objects in the said pedagogical system, which interacts with other elements of the system, and thus the system is organized as “student-oriented”. Suggested methodology of prediction and assessment of the learning progress relies on building an hierarchical structure of criterial system of quality. In phase one, we have chosen basic criteria influencing the quality of the learning, which are organized into the first level of Ishikawa diagram. Basing on expert’s knowledge, we then assigned each criterium a corresponding coefficient of importance for the quality of learning. In the second phase, the same was done for criteria of the second and third levels of importance. In cases when it was not possible to unequivocally assess the coefficient of importance, we present the system of equations for calculating the membership function of a fuzzy set. In the third phase, integral values of negentropy were calculated for three study courses and for a model situation.
MOBILE STORITELLING AS EDUCATIONAL TECHNOLOGY
Authors: Bryksina O. F. , Sharikova E. I.
Published: December 2019

The article discusses various approaches to the definition of storytelling, shows the possibility of using storytelling in education both in the activity of a teacher and in the process of productive activity of schoolchildren. Particular attention is paid to the use of the izi.TRAVEL mobile service and online platform for rendering audio guides, its technological and didactic capabilities.
SOFTWARE IMPLEMENTATION OF THE TASKS OF THE OPEN REGIONAL ROBOTICS CHALLENGE "FAIRYTALE TOURNAMENT"
Authors: Kozlovskikh M. E. , Kutigin O. I. , Slinkina V. D.
Published: December 2019

The article presents some solutions to the tasks "Ilya Muromets" and "Goldfish" those were done by the participants of the open regional robotics challenge "Fairytale tournament". The tasks can be used while teaching robotics at school. Schoolchildren may have different levels of training. The design of the robot to solve the tasks done with LEGO MINDSTORMS NXT and LEGO MINDSTORMS EV3 is offered. The solutions are done in Lego MINDSTORMS Education EV3 graphical environment.
THE PROJECT "ENGINEERING CLASS IN MOSCOW SCHOOL"
Authors: Mokrova N. V.
Published: December 2019

The issues of implementation of the project "Engineering class in Moscow school" are discussed. The results of the pre-professional examination in three areas of training are presented, the low level of pre-professional knowledge was noted. The research course of solving applied problems of engineering practice with the use of modern software has not been studied. Based on the analysis of the results of pre-professional examinations in the areas of research, technology and programming, conclusions about the weak information support of the project and the unwillingness of school graduates to expand the fields of training are obtained.
Educación Física y diversidad: una cuestión de género
Authors: Fernández-Villarino María Ángeles , Hernaiz-Sánchez Ariadna , Villaverde-Caramés Eloy
Published: December 2019

Varias investigaciones y diferentes instituciones internacionales reconocen el papel fundamental que la Educación Física puede desarrollar en la promoción de un estilo de vida activo y saludable, así como el favorecer una actitud positiva hacia la práctica de actividad físico-deportiva. La investigación evidencia que el índice de sedentarismo en la población infantil y adolescente es elevado y preocupante, cuestiones que se acentúan más en el caso de las niñas y de las adolescentes. Si una Educación Física de calidad debe responder de manera específica a las necesidades de todas y cada una de las personas que la reciben, teniendo en cuenta las evidencias anteriores, se hace necesario un análisis en torno al género, la Educación Física y su influencia en esta parte de la población, dado que parece no tener ni el mismo significado ni la misma influencia que en el caso de los niños y de los adolescentes.
Effect of Lifestyle Modification with Metformin on Serum Chemerin Concentration of Metabolic Syndrome Subjects
Authors: Dharma Lindarto  , Brama Ihsan Sazli
Published: December 2019

Chemerin is adipokine that plays an important role in macrophage infiltration into adipose tissue and may contribute to inflammation development and insulin resistance. This study aimed to determine the effect of lifestyle modification with and without metformin on chemerin in metabolic syndrome. Forty-five metabolic syndrome subjects (IDF-2005) were randomly assigned to one of the two groups: placebo group (n=22) and metformin group (n=23). Both groups underwent a 12-week lifestyle modification (diet and moderate aerobic-exercise). Only 40 participants (placebo group n=20 and metformin group n=20) completed the survey whereas 5 participants dropped out of the study. After their lifestyle was modified, body weight, BMI, WC, and chemerin decreased significantly (p<0.001) in both groups. Moreover, there was a significant difference between both groups in body weight, BMI, and WC (p<0.05) but not for chemerin. Thus, lifestyle modification with metformin improved BW, BMI, WC on metabolic syndrome, and there was no decrease significantly of chemerin between placebo and metformin groups. Further investigations should be done to confirm the effect of lifestyle modification and metformin on chemerin after an extended follow-up period.
Effect of Lifestyle Modification and Metformin on Fetuin-A and Transforming Growth Factor-ß (TGF- ß) in Metabolic Syndrome
Authors: Melati Silvanni Nasution  , Dharma Lindarto
Published: December 2019

Fetuin-A is a liver-synthesized protein that is secreted into serum. Transforming growth factor-β (TGF-β) is a polypeptide member of the TGF-β superfamily of cytokines. The purpose of this study is to evaluate the effects of lifestyle modification and metformin on fetuin-A and Transforming Growth Factor-ß (TGF- ß) in metabolic syndrome (MetS). Forty MetS subjects were randomly assigned to treatment with placebo (n=20) or metformin (n=20) in addition to lifestyle modification for 12 weeks. All 40 participants completed the study. After 12 weeks, both groups had significant reductions in weight, body mass index (BMI), waist circumference (WC), systolic blood pressure (SBP) and diastolic blood pressure (DBP) (all p<0.001). The placebo group also had significant improvement in fasting plasma glucose (FPG) and C-reactive protein (CRP) (p<0,001 ; p<0.05 respectively). Weight, BMI, WC, FPG, 2-hour postprandial glucose (2h-PPG), high density lipoprotein cholesterol (HDL-C), triglycerides (TG), fetuin-A and TGF- ß in the metformin group decreased significantly compared to the placebo group. Reduction of plasma fetuin-A was significantly associated with TG in the metformin group. Lifestyle modification and treatment with metformin for 12 weeks improved cardio-metabolic risk factors in MetS and reduced fetuin-A levels.
PENGARUH KEDALAMAN MUKA AIR TANAH TERHADAP LILIT BATANG KARET CLON PB260 DAN SIFAT KIMIA TANAH GAMBUT DI KEBUN MERANTI RAPP RIAU
Authors: Sukariawan Aries , Rauf Abdul , Sutanto Arief Setiawan , Santoso Bolot
Published: December 2019

Study to evaluate the effect of the depth of water table in peatlands of the PB260 rubber girthimmature plants (age 2-3 years) and chemical properties of peat soil has been carried out inMeranti Estate RAPP Kampar Estuary Pangkalan Kerinci District of Riau in December 2013.The research used a descriptive method with measuring water table depth in selected plots with girthmeasurements of planting rubber trees planted in 2010 and 2011. At two sample plots (representingthe shallowest water level and water level deep) dug each soil profile to the investigation anddecision soil samples. Soil samples were analyzed at the Laboratory of BPTP North Sumatra. Theresults showed that the water table in peatlands deeper, reaching 88.6 cm girth will decrease thegrowth of young rubber trees. Rubber immature plants age 2 years who has the best girth growth ingroundwater at a depth of 29.6 cm deep and 3 years old trunk circumference rubber girth bestgrowth at 65.3 cm water table. The water table is within reach mean 88.6 cm cause fasterdecomposition of peat soil is characterized by C/N ratio of lower and lower quality (fertility) peatsoils with lower ash content, K-exchangeable, Mg-exchangeable, P-available, and P-total.
STUDY ON CHARACTERISTICS OF LAND AREA REFUGEE RELOCATION ERUPTION SINABUNG KARO DISTRICT AS A BASIS FOR LAND USE BASED WATERSHED MANAGEMENT
Authors: Rauf Abdul , Rahmawaty  , Wijoyo Hadi
Published: December 2019

Study of the characteristics of the land in the area of refugee relocation eruption of MountSinabung intended as a basis for the use of land-based watershed management in the regionhas been carried out in November and December 2014. The study was conducted using asurvey at the site which is administered in the village of Nagara, Pertibi Lama and PertibiTembe Tiga Panah Sub District Karo District. Field observations carried out on the physicalcharacteristics of the land and soil sampling for laboratory testing of physical, chemical andbiological soil. The study also conducted bassed secondary data sourced from the analysis ofvarious thematic maps such geological maps, soil type maps, topographic maps and maps ofwatershed areas. The results showed that the area of Mount Sinabung relocation is in theupstream region of two important watersheds in North Sumatra and Aceh, which WampuWatershed and Singkil Watershed, the dominant topography sloping to undulating located ata height of more than 1,550 m above sea level. Land in refugee relocation sites Sinabungclassified into subgroups Andic Dystropept which has properties (smeary orthixotropic), the soil is very loose (BD <0.8 g / cm3) and high content of organic matter in theupper layers of the soil pH suitable for upland crops, and the number (population) microbesare also high.
PHYSIOLOGY EFFICIECY OF NITROGEN ABSORBTION WITH THREE SOYBEAN VARIETY OF UREA AND APPLICATIONS RHIZOBIUM IN SOIL WITH NUTRITRIONAL STATUS LOW NITROGEN
Authors: Wicaksono Makruf
Published: December 2019

The use of chemical nitrogen fertilizer tends to be high on soils with low nitrogen nutrient status, it can affect the balance of the global N cycle, contamination of groundwater and the increasing N2O (nitric monoxide is one of the greenhouse gases). The objective of this research to compare the effect of nitrogen fertilization and application of Rhizobium on nitrogen uptake efficiency, growth and yield of three varieties of soybeans In Soil With Nutritional Status Low Nitrogen. The research was conducted at the practice field Agricultural Extention Collage Medan, Deli Serdang North Sumatra Province in August-December, 2014. The method used is split-slip plot design with the main plot Rhizobium application and without Rhizobium, the subplot is the varieties used are Burangrang, Tanggamus, and Wilis. The sub-sub plot is the standard of N fertilization, which is control, urea 50 kg/ha, 100 kg/ha and 150 kg/ha. Variable observations include nitrogen absorption, plant dry weight, nodule, and production. The results showed that the application of Rhizobium on the variety of Wilis provides a significant response to the increased absorption of nitrogen, whereas the varieties Burangrang and Tanggamus not give a significant response to increased nitrogen absorption. A urea fertilizer dose of 150 kg/ha on the use of Rhizobium inoculant tends to give a negative reaction to the Physiology Efficiency Of Nitrogen Absorbtion (PEN), nodule, and weight of 100 grains. Physiology Efficiency Of Nitrogen Absorbtion (PEN) of three varieties tested were not affected by the level of nitrogen fertilization and the addition of Rhizobium
FISH-RICE FARMING AREA AT MANIK RAMBUNG RICE FIELD SUPPORTED FOOD SECURITY IN NORTHERN SUMATRA````
Authors: Siregar Ameilia Zuliyanti
Published: December 2019

Rice and fish have been an essential part of the life of Indonesian people which produce from rice field. The research was conducted during two years (Dec.2008 to Sept.2010) using a purposive random sampling using three plots in lowland and terrace from Manik Rambung Rice Field (MRRF). Two types of rice crops (Ciherang and IR 64) are cultivated showed 6 orders, 21 families, 34 taxa and 25 species. Oligochaeta, Ephemeroptera, Hemiptera, and Diptera were identified respective families, while families of Odonata and Coleoptera were further identified to species. There are three categories of Dominance Index (DI) in a rice field, these are D=Dominant ( 5% individual); A=Accessory (2.5%  D  5% individual) and O=Occasional (2.5% individual) with four families (Baetidae, Chironomidae, Tubificidae and Ceratopogonidae) as ranked high on the DI list. The Kruskal-Wallis test showed significant differences between the abundance of aquatic organisms during the time of sampling (χ2=1274.840, P=0.000), rice-growing seasons (χ2=16.393, P=0.001) and rice cultivation phases (χ2=8.618, df=4, P=0.004). The study about fish farming produce plant and animal proteins and sustainable for food security in Northern Sumatra.
Phytoremediation of Contaminated Land at Medan Industrial Area by Ornamental Plants
Authors: Sidauruk Lamria
Published: December 2019

Pengembangan kawasan industri di Kota Medan, Sumatera Utara berdampak kepada meningkatnya pencemaran tanah oleh logam berat di kawasan tersebut. Fitoremediasi adalah sebuah teknologi yang inovatif, efektif dari aspek biaya, aman dan secara estetika dapat diterapkan untuk jangka panjang. Aspek penting yang perlu dicatat adalah tanaman tidak boleh digunakan untuk tanaman konsumsi. Tujuan dari penelitian ini adalah untuk mengembangkan teknologi fitoremediasi dengan menguji beberapa  tanaman hias yang berbeda yang ditanam pada tanah dengan tingkat kontaminasi yang berbeda. Penelitian ini menguji delapan jenis tanaman hias yaitu: Sanseviera trifasciata, Dracaena fragrans, Diffenbachia sp, Phylodendron hederaceam, Agave sp.Codiatum variegatum, Anthurium crystallium dan Chrysalidocarpus lutescens . Parameter yang diamati adalah produksi biomassa dan penyerapan logam berat oleh tanaman. Hasil penelitian menunjukkan bahwa peningkatan produksi biomassa terbesar terdapat pada tanaman  Diffenbachia sp. diikuti oleh Codiatum variegatum, Chrysalidocarpus lutescens, Sanseviera trifasciata dan Dracaena fragrans .  Serapan logam berat paling tinggi terdapat pada tanaman Codiatum
REHABILITATION AGRICULTURE AREA COVERED BY SINABUNG VOLCANIC ASH
Authors: Tarigan Agustoni
Published: December 2019

The eruption of Mount Sinabung consistently and material issued increasingly large volume has caused plant and agricultural land damaged. Agricultural land damage was caused by the material issued mountain area is 10.945,24 ha. The role of technology and the results of research that has been done to agricultural lands caused the eruption of Mount Sinabung to be recommendations for the improvement of agricultural land. Efforts to improve the aspects of physical and chemical land are conservation, rehabilitation land of sand and the increase in the quality of the land. The thickness of volcanic ash after an eruption of covering agricultural land can be divided into 4 classes, namely: thin (the thickness < 2 cm), medium (thickness 2- 5 cm and thick (> 5 cm). Efforts for the recovery and rehabilitation land on each cluster based on the thickness of the dungeon ashes were normal processing with a hoe or plow, fertilizing with of organic matter and to the lava, dungeon needs to be done the conservation and land rehabilitation by an annual plant / the forest. The rehabilitation of agricultural land that badly damaged by eruption material may not be restored in a short time because of soil conditions which are acid, rocky and sandy. Thus the programs carried out by gradually and different treatment in accordance with their condition agricultural land.
ANALISIS PERAN PEMUDA TERHADAP PEMBANGUNAN PERTANIAN LAHAN PANGAN BERKELANJUTAN DI KABUPATEN LABUHANBATU UTARA
Authors: Ritonga Ajuan , Erlina  , Supriadi
Published: December 2019

The agriculture development of progressive crop land consists of three significant factors such as human resources, natural resources and appropriate technology. The method used in the research is survey, a kind of research of which data is collected from samples over population to represent all population. The type of survey used is explanatory research, a kind of research means to explain the position of variables researched and the relation between a variable and another. The population of the research was all the youths in Labuhan batu Utara being 17-30 years old. According to BPS data in 2013, there were 46,091 youths in Labuhan batu Utara. Sampling used simple sampling random method where sample taken randomly from population based on the probability frequency of all the population’s members. By using the formula of Frank Lynk, it was obtained 96 sample respondents. The conclusion of the research is 1) the youths’ perception to the agriculture development of progressive crop land in Labuhanbatu Utara is positive, 2) the youths’ role to the agriculture development of progressive crop land in Labuhanbatu Utara is positive and 3) the effect of the youths’ role as the agent of change, the agent of development and the agent of modernization is simultaneously significant to the agriculture development of progressive crop land in all the aspects- human resources, natural resources and appropriate technology. Meanwhile the variable of the agent of modernization effects positively but is not significant to the agriculture development of progressive crop land.
PENGARUH SISTEM EKSPLOITASI TERHADAP PRODUKSI KARET PADA KLON PB260
Authors: Purwaningrum Yayuk , Napitupulu JA. , Hanum Chairani , Siregar THS
Published: December 2019

Penelitian ini bertujuan mempelajari fisiologi tanaman karet klon PB260 untuk mendapatkan system exploitasi yang tepat untuk meningkatkan produksi sesuai dengan karakter klon. Penelitian ini dilaksanakan di perkebunan karet klon PB260 umur 15 tahun kebun PTPN Nusantara III Sei Putih mulai April 2014 sampai April 2015. Penelitian ini menggunakan rancangan acak kelompok dengan sistem eksploitasi sebagai perlakuan dan masing-masing diulang sebanyak tiga kali. Sistem ekploitasi yang digunakan, yaitu sistem sadap (P) dengan empat taraf : P1 : S/2 d3 BI-1, P2 : S/4 d3 BI-1, P3 : S/2U d3 H0-1, P4 : S/4U d3 H0-1, dan jenis stimulan (S) dengan empat taraf : S0 : Etepon 2.5%, S1 : Stimulan gas 3 x sadap per aplikasi, S2 : Stimulan gas 6 x sadap per aplikasi, S3 : Stimulan gas 9 x sadap per aplikasi. Hasil penelitian menunjukkan bahwa Sistem eksploitasi yang relative aman untuk klon PB260 adalah perlakuan sistem eksploitasi S/2 U d3 ETG /27d dan S/4U d3 ET /30d yang menghasilkan produksi (g p-1s-1) 19.27g p-1s-1 dan 18.90 g p-1s-1, dengan kadar tiol relative aman yaitu 0.4 mM.
EVALUASI KESESUAIAN LAHAN KENTANG DI KAWASAN RELOKASI SIOSAR KABUPATEN KARO
Authors: Tarigan Agustoni , Rauf Abdul , Rahmawaty
Published: December 2019

Siosar relocation Region is located in the Subdistrict Merek in Karo with an altitude between 1490 - 1562 m above sea level. With this type of soil Andisol where land is hilly and undulating with a slope of + 37.5% and the climate type D3, leasing land from the Ministry of Environment and Forests covering an area of 144.44 ha reserved for heads of household 370 victims of the eruption of Mount Sinabung, through Decree of the Minister of the Environment life and Forestry No. SK.107 / MenLHK-II / 2015. This study aimed to evaluate the characteristics of the level of production forest land suitability for the cultivation of potatoes in the Region Siosar, to analyze the remedial efforts that need to be done in improving crop productivity and to create maps of the actual land suitability and potential land suitability potato plants. The method used was a survey method. unit of land based on soil map consists of 7 units of land analysis method is the method of comparing (matching). The results showed that the level of potential land suitability for crop potato plant (Solanum tuberosum) including marginally suitable (S3) covering an area of 156.54 ha, quite suitable (S2) covering 205.25 ha and is very suitable (S1) covering an area of 52.65 ha.Keywords: Evaluation of land suitability, production forests siosar, relocation eruption of Mount Sinabung, the cultivation of potatoes, sub brands Karo.
ANALISIS PELUANG PENGEMBANGAN INDUSTRI GULA AREN DALAM MENDUKUNG SWASEMBADA GULA NASIONAL
Authors: Ir. H. Dian Kusumanto
Published: December 2019

This study aims to provide a critical and in-depth analysis of the Arenga palm sugar industry development opportunities in support of national self-sufficiency in sugar, as long as the self-sufficiency program in Indonesia only rely on cane-based sugar industry. Failure of sugar self-sufficiency efforts so far indicate that sugar cane-based industry is need for the development of alternatives to meet the national sugar needs. Efforts to increase sugarcane production is constrained by the difficulty of developing a planting area, declining soil fertility and productivity of sugarcane. Refiners are already very old age is also not able to be replaced with a new sugar plant that requires very large investments. This situation led to inefficiencies and yield of sugar cane harvest has declined. In addition, there are great opportunities Arenga plant which has many advantages compared to cane as raw material for sugar industry. However, the development of the sugar industry based Arenga requires government policies that encourage the availability of information, science and latest technology of Arenga, incentives for investors in the form of ease of licensing and the provision of land, concerns about the proliferation of liquor is also to be anticipated by the legislation, monitoring and enforcement. Alternative policy is believed will give great confidence in supporting national self-sufficiency in sugar, also confirmed to the welfare of its players. Then advised all parties to take on the role in order to meet Arenga presence as supporting sugar self-sufficiency in Indonesia.
PENGARUH KONDISI TAJUK DAN APLIKASI GETAR TERHADAP PRODUKSI NIRA AREN DI REJANG LEBONG BENGKULUPlant sugar palm (Arenga pinnata) is a plant that provides economic benefits, social, and conservation. Nira is one of the sugar plant products of high economic
Authors: Apriyanto Enggar , Setiadi Dedi
Published: December 2019

Plant sugar palm (Arenga pinnata) is a plant that provides economic benefits, social, and conservation. Nira is one of the sugar plant products of high economic value. The research objective was to determine the effect the condition header tanamaan juice and shakes application to the production of sap. The study was conducted in October and November 2015. Materials and tools used in the study is the sugar plant, jerry cans shelters sap, a knife to cut manggar, hose, refractometer, and digital vibrating tools used machineMetode therapy is a method of observation. Data were collected for the sugar plant with a dense canopy, medium and light. Application shakes performed on plants with dense canopy and as control is a plant that did not receive the application shakes. All treatment was repeated three times. The data obtained were analyzed quantitatively. The results showed that the condition of the plant canopy affect the production of palm sap. Average production of sap in the sugar plant with a dense canopy, moderate, and lacking in a row as much as 12.50, 9.13, and 4.56 liter per day. Application shakes 2 times for 15 minutes in the morning and afternoon were able to increase production 67% juice, where the total production of the juice for 18 days leads to the receiving application manggar shakes and controls are 236.3 and 141.6 L / plant. The average sugar content in the sap of approximately 16% brix.
LITERASI INVENTARISASI HAMA DAN PENYAKIT TEMBAKAU DELI DI PERKEBUNAN SUMATERA UTARA
Authors: Siregar Ameilia Zuliyanti
Published: December 2019

Tobacco Deli" Sumatra, the belle of the European cigar tobacco is an economically valuable commodity exports as a source of foreign exchange. Deli tobacco leaf wrapper cigar known as the number one in the world, so it is still needed by plants producing high-quality cigars. Approach to literacy method in the inventory of the tobacco plant pest and disease appropriately in order to improve tobacco produktiviats to foreign countries. The main pests of tobacco plants were identified from the source of literacy is Thrips parvispinus, Spodoptera litura, Helicoperva armigera, Myzus persicae, Agrotis ipsilon, Heliothis, Meloydogyinae, Aphis sp, Thrips sp, Bemisia sp. While the types of diseases that often attack the tobacco plant was charred trunks, black shank, homeopathic leaf, spotting coelat, late blight and viruses. Preparation of seed healthy and productive; tillage seeding and planting land; Biological Control Agents consumption (BCA), rice husk ash, ash kitchen, liquid organic fertilizer and weed-free treatment that is an appropriate way to improve the productivity of tobacco as a commodity exporting country Indonesia.
KEBUTUHAN TRAKTOR DALAM PERSIAPAN LAHAN SECARA MEKANIS PADA BUDIDAYA TEMBAKAU DI SUMATERA UTARA
Authors: Rizaldi Taufik
Published: December 2019

Tujuan penggunaan tenaga traktor dalam persiapan lahan tembakau adalah untuk meningkatkan produksi dengan meningkatkan luas tanamnya. Produksi tembakau Sumatera Utara masih belum dapat memenuhi kebutuhan lokal namun produktivitasnya sebesar 1105.75 kg/Ha melebihi produktivitas nasional sebesar 848 kg/Ha. Usaha untuk meningkatkan produksi sudah dilakukan dengan meningkatnya luas tanam Sumatera Utara sebesar 1305 Ha. Peningkatan luas tanam ini harus didukung dengan penggunaan traktor dalam persiapan tanahnya agar jadwal tanam yang direncanakan dapat terpenuhi. Jumlah traktor yang harus disediakan oleh Sumatera Utara untuk komoditi tembakau ini sebanyak 38 unit sedangkan bahan bakar yang diperlukan sebanyak 28215 liter.
POTENSI BAKTERI PEREDUKSI SULFAT TERHADAP TERHADAP PERUBAHAN KADAR SULFAT TERLARUT MEDIA TUMBUH
Authors: Hanafiah Asmarlaili Sahar , A. Rauf  , Mazlina
Published: December 2019

Keterbatasan lahan subur untuk pertanian mendorong peneliti untuk menggali potensi lahan sulfat masam bagi pengembangan pertanian. Tanah sulfat masam mempunyai luas yang cukup potensial untuk di manfaat kan sebagai lahan pertanian, namun tanah ini mempunyai berbagai masalah dan kendala dalam pengembangannya. Tanah sulfat masam mempunyai pH rendah dengan ketersediaan unsur hara yang rendah dan kelarutan Al dan besi yang tinggi. Disamping itu lahan sulfat masam mengandung pirit yang apabila teroksidasi akan menyebabkan terjadinya penurunan pH hingga <3.5. Diperlukan suatu teknologi agar tanah sulfat masam bisa dimanfaatkan untuk pengembangan pertanian Bakteri pereduksi sulfat mempunyai kemampuan untuk mereduksi sulfat di alam sehingga kadar sulfat tanah menurun. Tujuan penelitian ini untuk mengisolasi bakteri pereduksi sulfat dari lahan sulfat masam dan dari sumber sulfat lainnya dan selanjutnya melakukan uji potensi bakteri tersebut di laboratorium. Hasil penelitian ini menunjukkan bahwa dari tiga sumber isolat yaitu tanah sulfat masam, limbah pabrik kertas dan air panas sumber belerang, diperoleh beberapa isolat bakteri pereduksi sulfat yang diberi nama sesuai dengan asalnya yaitu TSM (tanah sulfat masam), LK (limbah pabrik kertas) dan AP (Air panas mengandung belerang). Hasil pengujian yang dilakukan pada media posgate cair dengan berbagai perlakuan kemasaman (pH) menunjukkan bahwa pemberian BPS menurunkan kadar sulfat media tumbuh.
KISARAN INANG Corynespora cassiicola (Berk. & Curt) Wei PADA TANAMAN DI SEKITAR PERTANAMAN KARET (Hevea brassiliensis Muell)
Authors: Sajar Suryani
Published: December 2019

Leaf fall disease caused by Corynespora cassiicola is the most important disease in a rubber plantation. Thedisruption will decrease the productivity, delaying on grafting in a nursery and hard attack will flaw the seed,stunted and even dead. Curative prevention on old crop need huge expenses with uncertain result, hence it isnecessary to understand the host range of C. cassiicola completed with its cultural characteristics to utilizedin disease preventions such as intercropping and mixed cropping recommendation for weed control action.This study aims to obtain plants that are host of C. cassiicola. This research showed that isolate of C. cassiicolafrom clone GT1 of rubber infected 12 plants from 16 tested plants in various incubation periods which were:cucumber, soybean, alamanda, papaya, cassava, babadotan, sweet potato, tapak dara, peanuts, asystasia,mucuna, and RRIM 600. Pathogenicity examination showed 5 resistence degree, which were: resistant(babadotan, lulangan weed, sweet potato, mucuna, lantana, asystasia, spinach torm and sembung rambat) ;slightly resistant (rubber, peanuts, alamanda and tapak dara) ; moderate (soybean and papaya) ; slightlysusceptible (cassava) and susceptible (cucumber).
RESPONS PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS PADI GOGO (Oriza sativa L.) DENGAN KETEBALAN TANAH MINERAL PADA LAHAN GAMBUT
Authors: Maslaita
Published: December 2019

A large area of feat soil as available across Aceh Singkil province of Aceh. The possibility of thearea for upland rice farming is a necessary tube evaluated. This study aims to evaluate the growth andyield of upland rice varieties on peat soil with different thickness of soil. The research useda randomized block design with 2 (two) factors. The first factor was rice varieties (V) were consistof (1) Local variety (Siliam varieties), (2) Situ Bagendit varieties, (3) Situ Patenggang varieties and(4) Batutegi varieties. Whereas the second-factor thickness of mineral soil applied on peat whichconsists of 5 cm, 10 cm, 15 cm, 20 cm and no mineral soil as a control. The results indicated thatvarieties of upland rice showed a significant effect on the growth and production variables such asplant height 4, 6, 8 and 10 weeks after planting, where Situ Bagendit variety was the highest amongthe varieties. Similarly, the number of tillers 4, 6, 8 and 10 weeks after planting, the highest number oftillers was found on Situ Bagendit variety, while for the highest number of grain per panicle was inBatutegi varieties. The thickness of mineral soil applicated on peat soil indicated a significant effecton the growth and production variables such as plant height 4 weeks after planting. The highestyield of upland rice was fond on Situ Bagendit variety followed by Batutegi variety, SituPatenggang variety and local variety (Siliam variety).