bluuebunny/crossref_metadata_2025 huggingface dataset:
Energy efficiency modelling and estimation in petroleum refining industry- A comparison using physical data
Authors: A. Azadeh  , S.F.Ghaderi  , S.M.Asadzadeh
Published: July 2017

In this paper, energy efficiency in petroleum refining industry has been analyzed using the non-parametric data envelopment analysis approach with physical data. The proposed model for evaluation of energy efficiency does not require energy data in the operational levels for considering the structural effects. The average weighted boiling point of refined products is used as structural indicator in the proposed model. Also, data envelopment analysis (DEA) is used as a sensitivity analysis tool for determination of the potentials and means of energy consumption improvement and optimization. The proposed model is applied to a set of data from Iran and some OECD countries. The results show that the potential of savings in fossil fuels are greater than that of electricity consumption in refineries. The unique feature of this study is based on the utilization of DEA for separation of structural effects from other effects which are referred to as activity and intensity effects. The proposed model is also verified and validated by principle component analysis (PCA) and non-parametric Spearman correlation technique.
A device for improving the immunity of ac contactors during voltage dips
Authors: P.Andrada  , J.I. Perat  , G. Navarro
Published: July 2017

This paper describes an electronic device that enables AC contactors to ride through power quality disturbances. The proposed device is connected to the contactor coil and consists of a power conversion excitation and hold-in circuit, a control circuit, an immunity circuit and a shutdown circuit. It does not disturb contactor operation, is easy to use and can be built from cheap, commercially available components. Experimental tests have demonstrated the effectiveness of the proposed electronic device for improving the immunity of AC contactors during power quality disturbances, particularly voltage dips.
Wind turbine permanent magnet synchronous generator magnetic field study
Authors: C. Ghiţă  , A.-I. Chirilă  , I.-D. Deaconu  , D.-I. Ilina
Published: July 2017

The paper shows a 2D finite element optimization method for a wind turbine permanent magnet synchronous generator (PMSG) transverse geometry. Keeping the same rotor diameter the generator’s magnetic flux is maximized by changing the permanent magnets and rotoric slot opening dimensions. The studies show that for certain values of these dimensions the magnetic flux (flux linkage and mutual flux) has maximum values.
New control strategy to improve power quality using a hybrid power filter
Authors: S. P. Litrán  , P. Salmerón  , R. S. Herrera  , J. R. Vázquez
Published: July 2017

A new control algorithm for a hybrid power filter constituted by a series active filter and a passive filter connected in parallel with the load is proposed. The new control strategy is based on the dual formulation of the vectorial theory of electric power, so that the signal injected by the active filter is able to compensate the reactive power and the harmonics of the load current. To verify the developed theoretical analysis, the control strategy was verified by means of an experimental prototype. The results to verify the effectiveness of the proposed control algorithm are presented.
Evaluation of excessive transmission line losses caused by unbalanced and nonlinear three-phase loads
Authors: Klemen Deželak  , Gorazd Štumberger
Published: July 2017

This work evaluates excessive transmission line losses caused by unbalanced and nonlinear three-phase loads. The orthogonal decomposition of currents is applied in order to determine current component indispensable for energy transmission and current components that do not contribute to the energy transmission. The last ones cause excessive losses in the transmission lines which can be avoided.
Digital filter simulation for development of digital flickermeter
Authors: Attila Unhauzer  , Angéla Váradi
Published: July 2017

The number of the non-linear equipments connected to the electrical energy distribution system is rising continuously. These equipments generate harmonic currents and voltages in the network impedances and they are added to the base signal deforming the value and the shape of the main voltage. The distorted voltage increases electrical strain and temperature load of the equipment connected to the network. Moreover some of the disturbances can be dangerous not just for the equipments but for the people as well through the lights causing weariness, irritableness, etc. This special, dangerous on people effect is called flicker.
Wind generation and power system interaction analysis using probabilistic techniques
Authors: Marco Ortiz  , Juan Ríos  , Manuel Acosta
Published: July 2017

. Energy power from renewable sources, especially wind turbine generators, are being considered as an important generation alternative in the electrical power systems around the world due to their non contaminant nature and low environmental effects. In particular, the power supplied by wind generators is widely random following the random nature of weather conditions; therefore a probabilistic approach during planning seems much more appropriate than the deterministic approach actually used in the electrical utilities. This paper presents a methodology that allows the application of probabilistic analysis, thru the use of programming tools, in the load flow planning studies. The methodology described provides the opportunity to obtain the steady state response in systems where wind power exists using a wind power generation model (WPGM) and an iterative routine to the load flow analysis considering each value of generation of the wind sources.
A wind power generation model (WPGM) was developed using a random wind speed generator. The random wind speed generator describes the Weibull distribution of wind measurements, and then using Montecarlo simulation techniques, a program in Visual Basic executes the automatic evaluation of random samples of speed of wind considering the characteristic power curve of a wind turbine, obtaining a widely database of wind generation conditions.
As a result of the investigation, a computational tool was developed in order to use it, in combination with the PSS/E load flow analysis software, for steady state power system analysis. The methodology was used as an assessment tool to identify the effects of wind turbines generation into the substation voltages and power flow profiles in the power network, for a wind farm project intended to be installed in Margarita Island. The analysis aimed to identify the transmission adjustments, reinforcements and expansions needed to guarantee the wind farm project integration successful into the power system.
Harmonic source identification of a distributed generator, and compensation the voltage change caused by changing generation
Authors: Bálint Hartmann  , Supervisor Author András Dán, Dr
Published: July 2017

Energy industry is facing one of the biggest transition of its history. The decreasing amount of fossil fuels, the reduction of emissions, the rising energy prices all advert renewable energy resources. The penetration of distributed generation has already begun, but the integration into the old network structure is still in its infancy; the technological change is not yet followed by the needful aspect change. For this reason, extended investigation of the connection terms is indispensable.
In the present paper two aspects are examined. First, a computer model is created, and the verification process is done, using the method of harmonic source identification. The second part of the paper focuses on the steady voltage change caused by the connection of the generator. After simulations, the authors set a potential course to solve the problem, using only the built-in power electronic devices
Analysis of a single phase inverter for photovoltaic systems operating in a weak electric grid
Authors: Gorazd Štumberger  , Sebastijan Seme  , Klemen Deželak  , Andrej Hanžič  , Jože Voršič
Published: July 2017

Single-phase inverters for photovoltaic systems are normally analyzed when they are connected to the strong electric grid with low impedance. This work focuses on analysis of a single-phase inverter operating in a weak electric grid with relatively high impedance. Presented are experimentally determined results for the inverter’s efficiency, voltage and current total harmonic distortion and power factor. The results presented show substantial contents of sub harmonic components in the inverter’s output current.
Numerical interpolation methods applied in electromagnetic interference problems
Authors: Dan D. Micu  , Andrei Ceclan  , Iosif Lingvay  , Emil Simion
Published: July 2017

In the paper are evaluated the induced potential in pipeline based on the subdivision of the zone of influence AC Power Lines / electric traction line / gas pipeline, in a relatively great number of sections in order to be able to determine voltages at many positions along the gas pipeline. Is presented a practical case from Cluj, of subdivision of the zone of influence in sections (a circuit model) and is created a special interpolation algorithm for the precise calculation of the induced voltages values in different points on the pipeline taking into account the measured data.
Because there are only a set of available reactance measurements, for a continuous function between the magnetic permeability and electrical induced currents, it is necessary to apply numerical interpolation methods and/or nonlinear curve fitting procedures.
Unified power quality conditioner (UPQC) with voltage dips and over-voltages compensation capability
Authors: Víctor M. Moreno  , Alberto Pigazo  , Marco Liserre  , Antonio Dell’Aquila
Published: July 2017

Unified power quality conditioners (UPQCs) allow the mitigation of voltage and current disturbances that could affect sensitive electrical loads while compensating the load reactive power. Diverse control techniques have been proposed to evaluate the instantaneous output voltage of the series active power filter of the UPQC but, in most cases, these controllers only can compensate a kind of voltage disturbance.
This paper proposes a new digital controller for UPQCs which allows the load current harmonics and reactive power to be compensated at the grid side while avoiding the effect of voltage dips, over-voltages and voltage harmonics on the local loads. The controller characteristics can be established on-line without changing its basic structure. The performance of the proposed controller has been evaluated through simulation tests.
The occurrence of faults in permanent magnet synchronous motor drives an its effects on the power supply quality
Authors: J. O. Estima  , A. J. Marques Cardoso
Published: July 2017

The non-sinusoidal current drawn by variable speed drives has increase the concern about its effects on the distribution system power quality. On the other hand, electrical drives based on permanent magnet synchronous motors have become serious competitors against induction motors drives. This paper presents a study of the effects on the power supply quality due to the occurrence of faults in a permanent magnet synchronous motor drive. Only single open-circuit faults in the inverter are considered.
KUALITAS PERNIKAHAN DAN KESEJAHTERAAN KELUARGA MENENTUKAN KUALITAS LINGKUNGAN PENGASUHAN ANAK PADA PASANGAN YANG MENIKAH USIA MUDA
Authors: Tyas Putri Fatma , Herawati Tin
Published: July 2017

This study aimed to analyze the influence of family characteristics, quality of marriage, and family well-being toward the quality of parental environment among early marriage families. Research is done in two villages in Ciampea District, Bogor Regency, West Java Province. Samples consist of 70 families selected purposively with consideration of husband and wife married at a young age and have children aged 0-6 years old. Data were collected through interviews and observations and analyzed with descriptive statistics and multiple linear regressions. The analysis found that majority family had marriage quality in the medium category. Meanwhile, a majority of the family were categorized as prosperous family based on objective well-being indicator and had subjective family well-being in the medium category. This research also found that the majority of quality of parental environmental for children aged 0-36 months was categorized as low environment and children aged 37-72 months in the medium category. Marriage age, the marriageable age of wife, marriage quality, and subjective well-being significant and positive influenced toward the quality of parenting environment.
KENAKALAN PADA REMAJA ANDIKPAS (ANAK DIDIK LAPAS): PENGARUH KOMUNIKASI ORANG TUA ATAU SELF-ESTEEM?
Authors: Ismayanti Pratiwi , Hastuti Dwi
Published: July 2017

This study aimed to analyze the relationship of parent-adolescent communication, self-esteem, and delinquency of juvenile prisoners. The study was conducted at the juvenile prison in Bandung and involved 63 boys with age 15-18 years old; who were selected using simple random sampling. Juvenile delinquency was measured using the Adoption Self Report Delinquency Scale (ASRDS) questionnaire by Carroll et al. (1996). The self-esteem instrument used a questionnaire adapted from Rosenberg (1965). The parent-adolescent communication instrument used the Parent-Adolescent Communication Scale questionnaire adapted from Barnes and Olson (1982). Data were analyzed by descriptive analysis and Pearson correlation. Pearson correlation analysis found that there was a positive significant relationship between openness dimension of parent-adolescent communication with the self-esteem of juvenile prisoners. A significant negative relationship was found between problem dimension of parent-adolescent communication with the self-esteem of juvenile prisoners. Furthermore, the study also found a significant negative relationship between openness dimension of parent-adolescent communication and self-esteem with delinquency of juvenile prisoners. There was a significant negative relationship between self-esteem with delinquency of juvenile prisoners.
ANCAMAN, FAKTOR PROTEKTIF, AKTIVITAS, DAN RESILIENSI REMAJA: ANALISIS BERDASARKAN TIPOLOGI SOSIODEMOGRAFI
Authors: Wardhani Raysha Helau , Sunarti Euis , Muflikhati Istiqlaliyah
Published: July 2017

The aims of this study were to analyze the differences of hazard, protective factors, activities, and resilience among adolescents by gender, district, and mother’s employment status; and to analyze the influence of adolescence characteristics, family characteristics, hazard, protective factors, and activities on adolescent’s resiliency. Location of this research were two junior high schools that were represented the urban and rural area in Bogor and selected purposively. Participants of this research were 133 students consisting of 84 girls and 49 boys. The result showed that hazard of boys and adolescents that were from urban area were higher than girls and adolescents that were from rural area. However, protective factors (internal and external) and resilience of girls was higher than boys. External protective factors, outside activities, and resilience of adolescents in a rural area were higher than in urban area. Total protective factors, internal protective factors, external protective factors (school and peers), and resilience of adolescents whom mother was working was higher than adolescents whom mother was not working. The resilience of adolescent was affected by protective factors (internal and external) and adolescent’s activities. Resilience of adolescents is increasing while protective factors and adolescents' activities were increasing.
ANALISIS PEMBELIAN IKAN SEGAR DAN IKAN OLAHAN PADA IBU BEKERJA DAN IBU TIDAK BEKERJA
Authors: Karuniawati Tevi , Satria Arif , Yuliati Lilik Noor
Published: July 2017

This research aimed to analyze the factors that influence fresh and processed fish purchasing of working mothers and housewives in Bogor City, West Java. This research involved 200 peoples that were selected purposively. Data were collected by interview and were analyzed by conjoint, Fishbein, and Logit analysis. The result showed that both working mothers and housewives more concerned about fish condition rather than fish types. The knowledge about content, type, and processing of fish of both working mothers and housewives were relatively similar. The attitude of both working mothers and housewives was same. Both of them prefer fresh fish rather than processed fish. Purchasing of fresh and processed fish was measured by the frequency and quantity of purchasing. The factors that affect the frequency of fresh fish purchasing were family expenditure, preference, and knowledge, while the frequency of processed fish purchasing was influenced by education, family size, and attitude. Furthermore, the factors that affect the quantity of fresh fish purchasing were family expenditure, while the quantity of processed fish purchasing was influenced by family size.
MOTIVASI BERWIRAUSAHA, MANAJEMEN WAKTU, MANAJEMEN KEUANGAN, DAN PRESTASI AKADEMIK PADA MAHASISWA WIRAUSAHA
Authors: Urfillah Ulfi , Muflikhati Istiqlaliyah
Published: July 2017

This study aimed to analyze the influence of sample characteristics, family characteristics, business characteristics, entrepreneurial motivation, time management, and financial management toward business growth and academic achievement of college entrepreneurs. The study involved 50 college students (32 male and 18 female) who have been in business (agriculture or non-agricultural) for at least three months. Samples chosen by snowball technique with the first key informant is the head of the entrepreneurial community. Data were collected through interviews and analyzed using independent sample t-test, factor analysis, and multiple linear regression. Research showed that category of entrepreneurial motivation was high. The most motivating factor for college entrepreneurs was a greater business achievement. Category of financial and time management of college entrepreneurs were in the medium. The largest percentage of business growth was between 0,0 to 20,0 percent per month. Female entrepreneurs have better academic achievement than male entrepreneurs. The study found that the business growth is significantly positively influenced by the education and occupation of the father. The academic achievement of college entrepreneurs is negatively influenced by the participation of the Entrepreneurship Student Creativity Program and business growth, but it is positively influenced significantly by college entrance pathways and financial management.
BERDAKWAH DENGAN PENDEKATAN QURĀNI
Authors: Musyahidah Sitti
Published: July 2017

Alqurān is not only a holy book for Muslims but also a guide in living a life to gain the happiness of the world and the hereafter. Alqurān not only contains teachings, knowledge and information, but also the reading and practice of the Qurān can be a way or approach to preach both to ourselves and others. The closer to the Qurān someone is, the more peace and happiness they will get. And that is the ultimate goal of da'wah.
O jogo: conteúdo e estratégia para ensinar bem o esporte para todos
Authors: Paiva Rodrigo , D'Angelo Fabio , Venâncio Cibele , Freire João Batista
Published: July 2017

O objetivo desta pesquisa foi identificar as possibilidades de ensino dos fundamentos técnicos do voleibol (saque, manchete, toque, cortada), assim como a habilidade de manter a bola no ar, por meio da chamada pedagogia inovadora de ensino de esportes: o jogo. Dois grupos de alunos (G. exercícios/G. jogos) foram acompanhados durante 16 aulas. Os resultados demonstraram a eficácia da metodologia/pedagogia do jogo no ensino dos fundamentos observados, especialmente na manutenção da bola em jogo. O mesmo não se observou no grupo que praticou exercícios, o que sugere que uma das melhores maneiras de se aprender a jogar é jogando.Descritores: Pedagogia de Esportes, Jogo e Exercício, Iniciação Esportiva. The game: content and strategy to teach well sport for allAbstract: The objective of this research is to identify teaching possibilities of techinical fundamental of voleibol (serve, set, pass, attack), just as the hability to keep the ball in the air, by the called innovatived pedagogy of sport teaching: the game. Two groups of students (G. exercise/G. game) were track during 16 classes. The results unroll the effectiveness of the game pedagogy/methodology on the teaching os those fundamental expertise that were track, specially in maintain ball in game. The same wasn't observed in the group that practice exercise along the study, what suggest, that one of the best way to learn to play, is by playing.Descriptors: Sports Pedagogy, Games and Exercises, Sports Initiation. El juego: el contenido y la estratégia para enseñar bien deporte para todosResumen: El objetivo de esta investigación fue identificar las posibilidades educativas de los fundamentos técnicos de voleibol (cashout, banner, tacto, corte), así como la capacidad para mantener la pelota en el aire, a través de los llamados deportes innovadores pedagogía de enseñanza: el juego. Dos grupos de estudiantes (G. ejercicios/G. juegos) fueron seguidos durante 16 clases. Los resultados demostraron la eficacia de la metodologia/pedagogia del juego en la enseñanza de fundamentos observados, especialmente en mantener la bola en juego. La misma no se observó en el grupo que realizó ejercicios, que sugere que una de las mejores maneras de aprender que es jugar el juego.Descriptores: Pedagogía del Deporte, Juego y Ejercicio, Iniciación Deportiva.
KEPATUHAN WAJIB PAJAK MEMEDIASI DETERMINAN PENERIMAAN PAJAK PENGHASILAN
Authors: Oktaviani Rachmawati Meita , Hardiningsih Pancawati , Srimindari Ceacilia
Published: July 2017

This study aims to examine and analyze the factors affecting income tax revenues with tax compliance as an intervening variable. The study consists of three independent variables that tax penalties, the service tax authorities, and awareness of the taxpayer. While this research is tied in income tax revenues and intervening variable is tax compliance.This study used purpose sampling technique and survey method with questionnaires in collecting data. Respondent were sampled in this study is an individual taxpayer who performs is 120 respondent in Semarang. Research data analysis using multiple analysis with the path analysis.The results showed that the variable tax penalties and service tax authorities an effect on tax compliance, awareness taxpayer has no effect on tax compliance, tax penalties, awareness of taxpayers and taxpayer compliance effect on income tax revenue, the service tax authorities had no effect on tax revenue income. Tax compliance successfully mediate the relationship between the variables of service tax authorities against income tax revenue. Tax compliance  not successfully mediate the relationship between the tax penalties and awareness taxpayer against income tax revenue.
GREEN TECHNIQUES IN SYNTHESIS OF SOME THIAZOLIDINONES
Authors: Kanase Maruti S. , Piste Pravina B.
Published: July 2017

A survey of synthesis of thiazolidine derivatives has revealed that the thiazolidine nucleus has fascinated the chemists, pharmacologist and the researchers because of the biological responses exhibited by these compounds. This has led to designing the synthesis of a variety of such derivatives that are of high interest from the point of view of their bioactivity. Attempts were made by the researchers to synthesize these derivatives both by conventional methods as well as greener approach. Present study on the literature survey of thiazolidine derivatives emphasizes only eco-friendly methods of producing these derivatives. Purpose of this study is to create an enthusiasm among medicinal chemists, biochemists and the researchers to design synthesis of potential bioactive agents in a greener way.
NEPHROPROTECTIVE ETHNO-MEDICINAL ACTION OF SELECTED INDIAN MEDICINAL PLANTS
Authors: Srivastava AK , Kaushik D , Shrivastava AK , Lal VK
Published: July 2017

Medicinal plants may serve as a vital source of potentially advantageous new compounds for the development of effective therapy to action an array of kidney problems. Abounding herbs accept been accurate to be accomplishing as nephroprotective agents while abounding added are claimed to be nephroprotective but there is abridgement of any such accurate affirmation to abutment such claims. Developing a satisfactory herbal therapy to treat serve renal disorders requires systematic investigation of backdrop like acute renal failure, nephritic syndrome and chronic interstitial nephritis. Herbal medicines acquire alleviative backdrop due to the presence of their chemical components. An amount of extracts of accustomed articles and comestible antioxidants accept been appear to appearance careful furnishings adjoin nephrotoxicity. Following herbal drugs accept apparent their almighty nephroprotective aftereffect due their antioxidant, diuretic, anti-inflammatory, antispasmodic properties. The present review is aimed to elucidate the list of nephroprotective medicinal plants, which are scientifically proved in treating renal disorders.
PHYTOCHEMICAL ANALYSIS, ANTIBACTERIAL AND ANTIFUNGAL ACTIVITIES OF DIFFERENT CRUDE EXTRACTS OF MARINE RED ALGA GRACILARIA CORTICATA FROM THE GULF OF MANNAR SOUTH COAST, NAVALADI, SOUTH INDIA
Authors: Raj Gnanaprakasam Adaikala , Chandrasekaran Manivachagam , Jegan Sakthivel , Venkatesalu Venugopalan
Published: July 2017

To investigate the antibacterial and antifungal activity of hexane, chloroform, ethyl acetate, acetone and methanol extracts of Gracilaria corticata J. Ag against bacterial and fungal strains viz., Bacillus subtilis, Streptococcus pyogenes, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella typhimurium, Vibrio cholerae, Shigella flexneri, Proteus mirabilis and Proteus vulgaris. Fungal strains Candida albicans, Candida krusei, Candida guilliermondi, Candida parapsilosis, Candida tropicalis, Candida glabrata, four dermatophytes viz., Trichophyton rubrum, Trichophyton mentagrophytes, Microsporum gypseum and Epidermophyton flocossum. The extracts of G. corticata were extracted with different solvents viz., hexane, chloroform, ethyl acetate and methanol against bacterial and fungal strains by using disc diffusion method, MIC, MBC and MFC were determined. The ethyl acetate extract of G. corticata showed the highest antibacterial and antifungal activity against all the bacterial and fungal strains tested than the other extracts. The mean zones of inhibition produced by the extracts in agar disc diffusion assays were from 7.1 to 16.0 mm. The Minimum Inhibitory Concentrations (MIC) was between 125 and 500μg/ml, while the Minimum Bactericidal Concentrations and Minimum Fungicidal Concentrations (MFC) were between 250 and 500μg/ml. The highest mean zone of inhibition (16.0 mm) was observed in ethyl acetate extract of G. corticata against B. subtilis. The lowest MIC (125µg/ml), MBC and MFC (250µg/ml) values was observed in ethyl acetate extract of G. corticata against B. subtilis. The results suggest that the effective ethyl acetate crude extract of G. corticata showed the presence of phytochemical, terpenoids, tannins and phenolic compounds strongly than the other solvent extracts. These finding suggest that ethyl acetate crude extract of G. corticata have potential antimicrobial activity are under going further analysis to identify the active compounds currently progress.
ASSESSMENT OF CYTOTOXIC AND IMMUNOMODULATORY PROPERTIES OF PIPER NIGRUM LINN. (WHITE PEPPER) SEED EXTRACT
Authors: Mohamed M Sheik Noor , Jaikumar K , Anand D , Saravanan P
Published: July 2017

Macrophages are tissue-based phagocytes that play the central role in initiating defence mechanism of host immunity. Macrophage expresses inducible nitric oxide synthase (iNOS) that inhibit pathogen replication by releasing a variety of effector molecules which includes nitric oxide (NO). In the present study ethanol extract of Piper nigrum Linn. (white pepper) seed was investigated for its cytotoxicity and in vitro immunomodulatory properties using cell proliferation and NO determination assay with J774a-1, macrophage cell line. The ethanol seed extract was found to exhibit toxicity at higher concentrations of 50µg/ml and 100µg/ml. The seed preparation was observed to enhance both, the proliferation of macrophage cell with higher percentage proliferation of 29.24 at 12.5µg/ml and the production of NO with significant stimulation level of 47.74% at 12.5µg/ml compared to the control. Since the results show the modulator effect of Piper nigrum Linn. seed on macrophage cells, it could be considered to possess immunomodulatory potential.
ANTIANXIETY ACTIVITY OF FRACTIONS AND ISOLATED COMPOUNDS OF VERBENA OFFICINALIS AERIAL PARTS
Authors: Kumar P , Madaan R , Sidhu S
Published: July 2017

Verbena officinalis L. (Vervain; family-Verbenaceae) has long been used in the treatment of mental disorders, but not validated systemically for traditional claims. The ethyl acetate fraction (rich in flavonoids) of V. officinalis aerial parts was subjected to bioactivity-guided fractionation to isolate main chemical constituents responsible for antianxiety activity. The column chromatography of ethyl acetate fraction yielded five fractions F1-F5, which were screened for antianxiety activity employing elevated plus maze model. F2 produced significant antianxiety activity at the dose of 16 mg/kg, p.o., upon acute administration in mice. F2 was also subjected to column chromatography, and yielded four sub fractions (F2.1 – F2.4). Upon acute oral administration of sub fractions, antianxiety activity was evaluated. Only F2.3 exhibited significant antianxiety activity, which was statistically equivalent to the standard drug (Diazepam, 2 mg/kg, p.o.). Three compounds (VO-1, VO-2 and VO-3) were isolated during the process of fractionation of bioactive fraction and sub fraction. After antianxiety evaluation of compounds, it was observed that VO-2 and VO-3 exhibit antianxiety activity.
ESSENTIAL OIL EXTRACTED FROM PLECTRANTHUS AMBOINICUS INDUCES APOPTOSIS IN THE LUNG CANCER CELLS VIA MITOCHONDRIAL PATHWAY
Authors: M S Lipin Dev , Menon Darsan B
Published: July 2017

The use of medicinal plants in the form of extracts and oils dates back to pre-historic times. The aim of the study was to determine the effect of Essential oil (EO) extracted from leaves of Plectranthus amboinicus on lung cancer cell line, A549. MTT assay was performed to check the efficacy of Essential oil to induce death in cancerous A549 cells and normal HEK293 cells. Acridine Orange/Ethidium Bromide staining, Hoechst staining and DNA fragmentation assays were used to confirm the apoptosis inducing ability of EO on A549 cells. RT-PCR and western blotting was performed to check the expression of pro- and anti-apoptotic factors. Calorimetric assay was done to check caspase-3 and caspase-9 activities. Essential oil at lower concentrations was found to induce cell death selectively in the lung cancer cells (IC50 = 10.74 µg/mL). The transcriptional expression studies of the pro-apoptotic Bax and anti-apoptotic Bcl-2; and the western blot analysis of pro-apoptotic BAK and BAD showed that EO upregulated the expression of pro-apoptotic factors and down regulated the expression of anti-apoptotic factors in A549 cells. Caspase-9 and 3 activities were found to be upregulated in the calorimetric studies. The down regulation of anti-apoptotic factors and upregulation of pro-apoptotic factors show that the Essential oil induced apoptosis in the lung cancer cells via the intrinsic or the mitochondrial pathway.
PHYTOCHEMICAL ANALYSIS OF CAESALPINIA PULCHERRIMA (L.) SW. LEAF EXTRACT USING GC-MS ANALYSIS
Authors: K Jaikumar , Mohamed M Sheik Noor , W John Wyson , M Deventhiran , D Anand , P Saravanan
Published: July 2017

Most of the world’s populations residing in developing countries depend on alternative medicine and use of plant ingredients. Caesalpinia pulcherrima (Fabaceae) is used in folk medicine for the treatment of various diseases including asthma, bronchitis, cholera, diarrhea, dysentery and malarial infection. The aim of the study to identified bioactive compounds presence in the chloroform leaf extract of Caesalpinia pulcherrima (L.) Sw. using Gas Chromatography and Mass Spectrometry (GC-MS) analysis. The leaf extraction was done by Soxhlet apparatus method. The GC-MS analysis has shown the presence of thirteen compounds in the chloroform leaf extract of Caesalpinia pulcherrima (L.) Sw. The identified bioactive compounds from this plant have been known to possess pharmacological activities.
BIOLOGICALLY ACTIVE TRITERPENES FROM EUGENIA PISIFORMIS CAMBESS. (MYRTACEAE)
Authors: Oliveira C. A. , Viana C. B. , Martins R. C. C.
Published: July 2017

In Brazil, Eugenia pisiformis, which belongs to botanical family Myrtaceae occurs in the states of Rio de Janeiro, Espírito Santo, Maranhão and Bahia. A specimen of E. pisiformis collected in Itatiaia National Park, State of Rio de Janeiro had its leaves, were studied because there are no phytochemical data in the literature for this plant so far. From the ethanolic extract of the leaves 3 substances were isolated and identified as the cycloartane-type triterpene 24-methylenepollinastanol, oleanane-type triterpene uvaol and ursane-type triterpene erythrodiol. All of them present significant biological properties, according to the literature and 24-methylenepollinastanol have never been isolated from this species, genus or family.
Utilizing Social Network in Teaching Writing by Developing Genre-Based Approach: EFL Students’ Attitudes & Perceptions
Authors: Dwiono Rija , Page (157-166) Nur Arifah Drajati
Published: July 2017

Social Network has changed beyond the boundaries from it was first perceived. Nowadays, it is not only used for recreation but also it means in teaching. However, addiction and privacy risk for students in using the social network is inevitable. Therefore, proper implementation is required to gain the maximum benefits of the social network. This study is aimed to examine the role of the social network by developing the Genre-based approach in teaching writing measured from students‟ attitudes and perceptions in EFL setting. Social network Facebook was focused on using regardless of other applications while the researcher served as a moderator. A survey was used to measure factors affected by developing the Genre-based approach in a social network in teaching writing. By employing qualitative method, the finding showed that social network was successfully implemented in teaching writing and it supported students‟ needs by developing Genre-based approach to improving their pre-writing activity
Median sternotomy - gold standard incision for cardiac surgeons
Authors: Matache Radu , Dumitrescu Mihai , Bobocea Andrei , Cordoș Ioan
Published: July 2017

Sternotomy is the gold standard incision for cardiac surgeons but it is also used in thoracic surgery especially for mediastinal, tracheal and main stem bronchus surgery. The surgical technique is well established and identification of the correct anatomic landmarks, midline tissue preparation, osteotomy and bleeding control are important steps of the procedure. Correct sternal closure is vital for avoiding short- and long-term morbidity and mortality. The two sternal halves have to be well approximated to facilitate healing of the bone and to avoid instability, which is a risk factor for wound infection. New suture materials and techniques would be expected to be developed to further improve the patients evolution, in respect to both immediate postoperative period and long-term morbidity and mortality.
A brief note on forest survey in Nepal
Authors: Shrestha S.M. , Juwa G.B.
Published: July 2017

No abstract
Indigenous technical knowledge of people on fodder tree management
Authors: Pokharel Radish K.
Published: July 2017

Abstract on the PDF
Participatory approach of forestry research in Nepal
Authors: Acharya K.P. , Stewart N. , Branney P.
Published: July 2017

Abstract on the PDF
Study on different lopping methods of Litsea monopetala at the midhills of Nepal
Authors: Shrestha Rabindra K.
Published: July 2017

Abstract on the PDF
Industrial feasibility of potential fatty oil-bearing wild plants of central Nepal
Authors: Baral Sushim Ranjan
Published: July 2017

Abstract on the PDF
Les « leçons d’histoire » revues et corrigées par le théâtre jeunes publics contemporain
Authors: Sorel Marie
Published: July 2017

Le théâtre jeunes publics contemporain, encore assez rare dans les classes, rechigne à dispenser à ses destinataires des leçons d’histoire en bonne et due forme. Soucieux de se libérer de l’héritage du « théâtre d’éducation », didactique et moralisant, les auteurs cultivent volontiers un côté ascolaire et désinvolte et se tournent a priori plus vers l’actualité et le quotidien que vers le passé. Mais l’histoire, notamment ses épisodes douloureux – les deux guerres mondiales, la Shoah, l’Occupation, la colonisation –, apparaît souvent, ne serait-ce que par allusions, sur la scène jeunes publics. Cet article se penche sur les détours que prennent les auteurs de théâtre pour la jeunesse – Joseph Danan, Françoise Du Chaxel, Jean-Claude Grumberg, Joël Jouanneau, David Lescot, Sylvain Levey, Naomi Wallace – pour sensibiliser le jeune lecteur au passé mais aussi au récit du passé, en particulier à ses silences et à ses partis pris. Les réécritures de contes et de robinsonnades, la multiplication des voix narratives et rétrospectives, l’humour et l’onirisme comptent parmi les procédés mis en œuvre par ce théâtre réflexif et hybride pour interroger les modalités d’écriture de l’histoire. Conscients des limites du schéma intergénérationnel et vertical de transmission du passé, les auteurs sollicitent l’imagination et l’esprit critique des jeunes lecteurs pour questionner l’étanchéité des cloisons entre passé et présent, réalité et fiction, petite et grande histoire.
An Unbiased Linkage Approach Reveals That the p53 Pathway Is Coupled to NK Cell Maturation
Authors: Collin Roxanne , St-Pierre Charles , Guilbault Lorie , Mullins-Dansereau Victor , Policheni Antonia , Guimont-Desrochers Fanny , Pelletier Adam-Nicolas , Gray Daniel H. , Drobetsky Elliot , Perreault Claude , Hillhouse Erin E. , Lesage Sylvie
Published: July 2017

Natural killer cells constitute potent innate lymphoid cells that play a major role in both tumor immunosurveillance and viral clearance via their effector functions. A four-stage model of NK cell functional maturation has been established according to the expression of CD11b and CD27, separating mature NK (mNK) cells into distinct populations that exhibit specific phenotypic and functional properties. To identify genetic factors involved in the regulation of NK cell functional maturation, we performed a linkage analysis on F2 (B6.Rag1−/− × NOD.Rag1−/− intercross) mice. We identified six loci on chromosomes 2, 4, 7, 10, 11, and 18 that were linked to one or more mNK cell subsets. Subsequently, we performed an in silico analysis exploiting mNK cell subset microarray data, highlighting various genes and microRNAs as potential regulators of the functional maturation of NK cells. Together, the combination of our unbiased genetic linkage study and the in silico analysis positions genes known to affect NK cell biology along the specific stages of NK cell functional maturation. Moreover, this approach allowed us to uncover a novel candidate gene in the regulation of NK cell maturation, namely Trp53. Using mice deficient for Trp53, we confirm that this tumor suppressor regulates NK cell functional maturation. Additional candidate genes revealed in this study may eventually serve as targets for the modulation of NK cell functional maturation to potentiate both tumor immunosurveillance and viral clearance.
Dual Immunization with SseB/Flagellin Provides Enhanced Protection against Salmonella Infection Mediated by Circulating Memory Cells
Authors: Lee Seung-Joo , Benoun Joseph , Sheridan Brian S. , Fogassy Zachary , Pham Oanh , Pham Quynh-Mai , Puddington Lynn , McSorley Stephen J.
Published: July 2017

The development of a subunit Salmonella vaccine has been hindered by the absence of detailed information about antigenic targets of protective Salmonella-specific T and B cells. Recent studies have identified SseB as a modestly protective Ag in susceptible C57BL/6 mice, but the mechanism of protective immunity remains undefined. In this article, we report that simply combining Salmonella SseB with flagellin substantially enhances protective immunity, allowing immunized C57BL/6 mice to survive for up to 30 d following challenge with virulent bacteria. Surprisingly, the enhancing effect of flagellin did not require flagellin Ag targeting during secondary responses or recognition of flagellin by TLR5. Although coimmunization with flagellin did not affect SseB-specific Ab responses, it modestly boosted CD4 responses. In addition, protective immunity was effectively transferred in circulation to parabionts of immunized mice, demonstrating that tissue-resident memory is not required for vaccine-induced protection. Finally, protective immunity required host expression of IFN-γR but was independent of induced NO synthase expression. Taken together, these data indicate that Salmonella flagellin has unique adjuvant properties that improve SseB-mediated protective immunity provided by circulating memory.
Beholding Tanjung Pesona Coastal-ecotourism in Bangka Islands, Indonesia
Authors: S. H. Hengky
Published: July 2017

Tourism sector becomes the largest foreign exchange contributor in 2020, and Indonesia has a number of tremendous natural and cultural potential to become a national tourism development asset. Even this potential could be a reckoned contributor to GDP, Foreign Exchange, and Employment. This study aims to respond Deputy of Business Market Segment and Government of Ministry of Tourism, and to behold Tanjung-Pesona coastal ecotourism. However, this fieldwork results show that the existing performance is in critical condition based on coastal-ecotourism. There are three main issues that should be addressed immediately. Firstly, enhancing community education on handling fragile ecosystems. Secondly, local government got to improve the performance of coastal carrying capacity, as well as sustaining local business model. Thirdly, they get to increase an incentive for supporting coastal environment protection program that would reduce carbon footprints and made it based on collective action. It would maintain the levels of financial stability too. The final solution of the local government to make the zoning of tourism, mining. In addition, there is the potential for regional culinary-ecotourism and fishing-ecotourism that can make a vibrant coastal-ecotourism in the islands. Besides, there are many traditional culinary options that can contribute economic to local people as sustainable local-business models. It’s a unique food.
Practicing Professional Values: Factors Influencing Involvement in Social Work Student Organizations
Authors: Martindale Dorothy , Olate Rene , Anderson Keith A.
Published: July 2017

One of the most promising avenues for the development of professional values is involvement in professional student organizations.  A convenience sample of baccalaureate social work students (n = 482) was drawn from 15 institutions.  Regression analyses revealed several predictors of involvement in social work student organizations, including student mentorship, involvement in other student organizations, and type of institution (public/private).  These results suggest that involvement in professional student organizations (e.g., social work, nursing, law) may be amenable to interventions such as structured educational/social events and peer mentorship programs which, in turn, may help in the development of professional values.
Snap, Tweet and Post: College Student Social Media Perceptions and Heutagogic Practices and Uses
Authors: Nadelson Louis S. , Berg William , Fox Brandon , Grandbouche Preston , Harris Michael , Kroschel Tia Leray , Sandoval Sean
Published: July 2017

The nearly ubiquitous access to technology and the diversity of social media sites has provided students with easy access to a wide range of information and opportunities for interaction with other individuals.  The nature of social media creates a context in which students can determine when they view information, the duration of the viewing, where they view their social media and why they choose to view the media.  The conditions of social media interactions present an opportunity for self-determined learning, or heutagogy.  While heutagogy takes place multiple time during a student’s average day, the self-determined nature of the learning may lead to issues associated with self-regulation and anti-social behaviors.  To study student self-determined perceptions and engagement with social media we developed a mixed methods survey gathering quantitative and qualitative data from 71 undergraduate students.  Our results reveal students do self-determine their engagement with social media and will also self-determine the norms they use for engagement.  We also found that the students perceived that they gave up other activities to engage in social media, and were likely to spend more time studying, exercising, and bettering themselves of they did not spend time interacting with social media.
Quality of HE in Private Universities of Bangladesh: The Four Fundamental Perspectives
Authors: Alam Gazi Mahabubul , Parvin Morsheda
Published: July 2017

Since its inception, Higher Education (HE) has always been playing a critical role for national development through the development of skilled manpower and intellectual civic society. Continuous paradigm shifting in HE in term of institutions’ pattern and course delivery mode and method has always been the part of the process of HE transformation. Consequently, private HE bears a long heritage and history. However, ‘commercialisation’ of HE through private provision is relatively new and the developing nation has been experiencing this since early 1990s with rapid expansion. The modernistic concept known as ‘commodification in HE’ has significantly impacted HE by changing the course curricula, targeted students’, teachers’ community , delivery mode,  and methods of HE. The current research which is first of its kind in Bangladesh is a qualitative study using interviews, ‘perception survey’ and observation conducted in private universities, which covers 71% of university students. Findings show that legislators, stakeholders, students, parents and academics consider private HE as a tool for individual gain without deliberating HE as public goods which is vital for national development.
Repositories at Master’s Institutions: A Census and Analysis
Authors: Henry Deborah B. , Neville Tina M.
Published: July 2017

Using a population of Carnegie-designated master’s institutions, this study attempted to quantify the existence of digital repositories at those institutions. A content analysis of repositories containing some type of faculty content was conducted. Pathways of discovery of these collections—including open web searching, inclusion in repository directories, and access through an institution’s website—were also noted. Approximately 20 percent of the master’s colleges and universities maintain repositories containing faculty scholarship plus many other types of student productivity and university documents.