bluuebunny/crossref_metadata_2025 huggingface dataset:
A Practical Statistical Approach to the Reconstruction Problem Using a Single Slice Rebinning Method
Authors: Cierniak Robert , Pluta Piotr , Kaźmierczak Andrzej
Published: March 2020

The paper presented here describes a new practical approach to the reconstruction problem applied to 3D spiral x-ray tomography. The concept we propose is based on a continuous-to-continuous data model, and the reconstruction problem is formulated as a shift invariant system. This original reconstruction method is formulated taking into consideration the statistical properties of signals obtained by the 3D geometry of a CT scanner. It belongs to the class of nutating reconstruction methods and is based on the advanced single slice rebinning (ASSR) methodology. The concept shown here significantly improves the quality of the images obtained after reconstruction and decreases the complexity of the reconstruction problem in comparison with other approaches. Computer simulations have been performed, which prove that the reconstruction algorithm described here does indeed significantly outperforms conventional analytical methods in the quality of the images obtained.
Nanocharacterization of metallic thin films deposited on different substrates
Authors: Merie Violeta V. , Burnete Nicolae V. , Bîrleanu Corina , Pustan Marius
Published: March 2020

The purpose of this study was to determine the influence of different substrates (C45 steel, polycarbonate, glass) on the topography as well as tribological and mechanical properties (nanohardness, modulus of elasticity and friction force) of aluminum, gold and silver thin films. The 3D image analysis showed a strong influence of the substrate material on the topography of the studied thin films with no certain variation rule. Using the Oliver and Pharr method for determining nanohardness it was observed that, the smallest values were obtained for the thin films deposited on plastic substrate, followed by glass and C45 steel, regardless of the deposited material. The determination of the modulus of elasticity was done using the Hertzian method. The obtained results showed that the highest values of this parameter were obtained for the films deposited on plastic substrate, while the lowest values depended on both the deposited material and substrate. Friction force analysis for aluminum and gold showed a significant impact of the substrate material, with more constant values for gold. As a consequence, one must pay a particular attention when choosing the material for the substrate on which the thin films are deposited.
Geological Reconciliation Study: Estimated Remaining Overburden Material and Reserve at Sibanyis Quarry, Kuching, Sarawak
Authors: Cheng Jong E , Roslee Rodeano
Published: March 2020

This study presents the estimated remaining quantity of overburden material (topsoil, completely to highly weathered rock) and remaining geological reserve at Sibanyis Quarry, Kuching after the quarry has been operated for years. Desktop study including literature search was carried out prior field investigation. Three boreholes together with latest topographical and detail survey was conducted to obtain the latest data at Sibanyis Quarry, Kuching. Based on this Geological Reconciliation Study, the estimated total remaining geological rock reserve is 40,022,767 metric tons, and the weathered rock and top soil are 2,159,688 BCM and 1,247,697 BCM respectively. The assumptions that are taken into consideration are top soil thickness of 11m, weathered rock thickness of 15m and rock density of 2.64 mt/m3.
Pulsed low dose-rate irradiation response in isogenic HNSCC cell lines with different radiosensitivity
Authors: Todorovic Vesna , Prevc Ajda , Zakelj Martina Niksic , Savarin Monika , Bucek Simon , Groselj Blaz , Strojan Primoz , Cemazar Maja , Sersa Gregor
Published: March 2020

Background

Management of locoregionally recurrent head and neck squamous cell carcinomas (HNSCC) is challenging due to potential radioresistance. Pulsed low-dose rate (PLDR) irradiation exploits phenomena of increased radiosensitivity, low-dose hyperradiosensitivity (LDHRS), and inverse dose-rate effect. The purpose of this study was to evaluate LDHRS and the effect of PLDR irradiation in isogenic HNSCC cells with different radiosensitivity.

Materials and methods

Cell survival after different irradiation regimens in isogenic parental FaDu and radioresistant FaDu-RR cells was determined by clonogenic assay; post irradiation cell cycle distribution was studied by flow cytometry; the expression of DNA damage signalling genes was assesed by reverse transcription-quantitative PCR.

Results

Radioresistant Fadu-RR cells displayed LDHRS and were more sensitive to PLDR irradiation than parental FaDu cells. In both cell lines, cell cycle was arrested in G2/M phase 5 hours after irradiation. It was restored 24 hours after irradiation in parental, but not in the radioresistant cells, which were arrested in G1-phase. DNA damage signalling genes were under-expressed in radioresistant compared to parental cells. Irradiation increased DNA damage signalling gene expression in radioresistant cells, while in parental cells only few genes were under-expressed.

Conclusions

We demonstrated LDHRS in isogenic radioresistant cells, but not in the parental cells. Survival of LDHRS-positive radioresistant cells after PLDR was significantly reduced. This reduction in cell survival is associated with variations in DNA damage signalling gene expression observed in response to PLDR most likely through different regulation of cell cycle checkpoints.
Evaluation of the training program for p16/ Ki-67 dual immunocytochemical staining interpretation for laboratory staff without experience in cervical cytology and immunocytochemistry
Authors: Prevodnik Veronika Kloboves , Marinsek Ziva Pohar , Zalar Janja , Rozina Hermina , Kotnik Nika , Jerman Tine , Varl Jerneja , Ivanus Urska
Published: March 2020

Background

p16/Ki-67 dual immunocytochemical staining (DS) is considered easy to interpret if evaluators are properly trained, however, there is no consensus on what constitutes proper training. In the present study we evaluated a protocol for teaching DS evaluation on students inexperienced in cervical cytology.

Methods

Initial training on 40 DS conventional smears was provided by a senior cytotechnologist experienced in such evaluation. Afterwards, two students evaluated 118 cases. Additional training consisted mainly of discussing discrepant cases from the first evaluation and was followed by evaluation of new 383 cases. Agreement and accuracy of students’ results were compared among the participants and to the results of the reference after both evaluations. We also noted time needed for evaluation of one slide as well as intra-observer variability of the teacher’s results.

Results

At the end of the study, agreement between students and reference was higher compared to those after initial training (overall percent agreement [OPA] 81.4% for each student, kappa 0.512 and 0.527 vs. OPA 78.3% and 87.2%, kappa 0.556 and 0.713, respectively). However, accuracy results differed between the two students. After initial training sensitivity was 4.3% points and 2.9% points higher, respectively compared to the reference, while specificity was 30.6% points and 24.4% points lower, respectively, compared to the reference. At the end of the study, the sensitivity reached by one student was the same as that of the reference, while it was 2.6% points lower for the other student. There was a statistically significant difference in specificity between one student and the reference and also between students (16.7 and 15.1% points). Towards the end of the study, one student needed 5.2 min for evaluating one slide while the other needed 8.2 min. The intra-observer variability of the senior cytotechnologist was in the range of “very good” in both arms of the study.

Conclusions

In teaching DS evaluation, the students’ progress has to be monitored using several criteria like agreement, accuracy and time needed for evaluating one slide. The monitoring process has to continue for a while after students reach satisfactory results in order to assure a continuous good performance. Monitoring of teacher’s performance is also advisable.
PENGEMBANGAN BAHAN AJAR ASESMEN PERKEMBANGAN ANAK USIA DINI DENGAN MODEL PEMBELAJARAN PROJECT BASED LEARNING (PBL)
Authors: Pratiwi Hardiyanti
Published: March 2020

This study aims to develop teaching materials for the assessment of early childhood development using the Dick and Carey development model. This is because given the importance of assessment and evaluation to support and ensure the successful development of all potential early childhood, PAUD teachers and parents must acquire this expertise as possible. However, learning that only focuses on understanding theory without being accompanied by practice is the main cause of PIAUD students not having the skills in designing instruments and carrying out assessments. The data source in this study is 2017 PIAUD students as prospective users and expert validators, consisting of material experts and learning design experts. The product trial design consists of expert validation, individual trials, and small group trials. The trial results show: (1) The questionnaire from the expert validator stated that there were no indicators that needed to be revised, but there were a number of notes from experts outside the indicators in the questionnaire, so the researcher made a revision of the notes. (2) There are several suggestions and input from individual trial respondents, amounting to 3 people. Furthermore, the revised results of individual trials were retried on small groups. (3) In the small group trial there are also some notes / suggestions from respondents which are used as a guide for researchers to revise teaching materials in the final stage.
ALTERNATIVAS DE POLÍTICAS COMERCIAIS PARA O AGRONEGÓCIO BRASILEIRO SOB DIFERENTES PRESSUPOSIÇÕES DE RETORNOS À ESCALA.
Authors: Gurgel Ângelo Costa , Campos Antônio Carvalho
Published: March 2020

Este trabalho procura determinar os impactos de diferentes opções de políticacomercial, sob pressuposições alternativas de retornos à escala e natureza da competição,nos segmentos industriais, com ênfase especial nas indústrias ligadas aoagronegócio. O modelo de equilíbrio geral aplicado, GTAPinGAMS, é usado paraimplementar as simulações. Os resultados sugerem que os ganhos de bem-estar tenhamsido superiores no modelo que considera as imperfeições de mercado. As variaçõessetoriais na produção, importações e exportações foram levemente diferentes em magnitudese sinais, sob pressuposições alternativas de estruturas de mercados, e dependentesda política comercial implementada. As diferentes medidas de política comercialpermitem o aproveitamento de economias de escala e a redução do markup na maioriadas indústrias, com evidências nos efeitos de racionalização e procompetitivos.
REFLEXOS DE POLÍTICAS PÚBLICAS SOBRE A FRUTICULTURA CEARENSE: O CASO DO AGROPOLO BAIXO JAGUARIBE.
Authors: Viana Matias Gerlan Dayvid , Ramos Silva Lúcia Maria , Khan Ahmad Saeed
Published: March 2020

Este estudo teve como objetivo analisar o impacto do Programa Cearense deAgricultura Irrigada – PROCEAGRI na fruticultura do Estado do Ceará, considerandoseo caso do Agropolo Baixo Jaguaribe. Os dados utilizados foram obtidos de entrevistasdiretas com os produtores de frutas dos municípios de Aracati, Limoeiro do Nortee Quixeré. Em todos esses municípios, após 1998 (implantação do referido Programa)houve melhorias no aspecto tecnológico e incremento na produtividade. Um beneficioimportante gerado no Agropolo Baixo Jaguaribe foi a criação de empregos, na suamaioria locais. Sugere-se a concessão de incentivos à instalação de agroindústrias paramelhor aproveitamento das frutas, aumento da oferta de crédito, mais assistênciatécnica, garantia de comercialização e melhoria da infra-estrutura.
EFICIÊNCIA TÉCNICA NA PRODUÇÃO DE LEITE EM PEQUENAS PROPRIEDADES DA MICRORREGIÃO DE VIÇOSA.
Authors: Dos Santos Jerônimo Alves , Vieira Wilson da Cruz , Baptista Antônio J. M. dos Santos
Published: March 2020

Neste trabalho, avaliou-se a eficiência técnica em pequenas propriedadesprodutoras de leite da Microrregião de Viçosa, MG, assistidas no âmbito do convênioUFV/Nestlé (PDPL). Essas propriedades foram classificadas segundo o tamanho e ograu de sangue do rebanho, propondo medidas com vistas ao uso mais eficiente dosrecursos produtivos. Utilizou-se um modelo de Análise Envoltória de Dados (DEA)para identificar as propriedades eficientes e ineficientes. Verificou-se que a maioria daspropriedades, sob a pressuposição de retornos variáveis, foi eficiente, enquanto sob apressuposição para retornos constantes, ineficiente. Observou-se que as propriedades,no período de 1999-2003, tornaram-se mais semelhantes, ou seja, evoluíram para padrõesde maior eficiência técnica em seus processos produtivos.
ANÁLISE DE MARKET-SHARE E FONTES DE VARIAÇÃO DAS EXPORTAÇÕES BRASILEIRAS DE SOJA.
Authors: Figueiredo Adelson Martins , Dos Santos Maurinho Luiz , Lírio Viviani Silva
Published: March 2020

O objetivo deste trabalho é determinar os fatores que explicam a alteração daparticipação da agroindústria brasileira de soja no comércio internacional. Particularmente,pretende-se analisar a competitividade brasileira nas exportações de cada segmentoda agroindústria de soja. Para isso, utilizou-se o modelo Constant-Market-Share(CMS), por meio do qual foram computadas as discrepâncias na variação potencial eefetiva das exportações brasileiras de grão, farelo e óleo, desagregando-as nos componentestamanho de mercado, distribuição de mercado e competitividade. O tamanho demercado mostrou-se positivo nos três segmentos analisados, o que demonstra que aexpansão da demanda mundial de soja e derivados foi fator fundamental para o crescimentodas exportações brasileiras. O efeito distribuição de mercado foi negativo, o queindica que existem ineficiências nos canais de comercialização externa da agroindústriabrasileira de soja. A competitividade, por sua vez, foi positiva apenas para as exportaçõesde soja em grão. Contudo, destaca-se que o impacto positivo da competitividadeno segmento de soja em grão mais que compensou em valores monetários, os impactosnegativos nos segmentos de farelo e óleo. Dessa forma, políticas governamentais quemelhorem a infra-estrutura e, conseqüentemente, reduzam os custos são necessáriaspara melhora da competitividade nos segmentos de farelo e óleo de soja.
TECNOLOGIA CRISTALIZADA E PRODUTIVIDADE TOTAL DOS FATORES
Authors: Alves Eliseu
Published: March 2020

Conhecida a função de produção y = f (x1, x2 ,..., xs ) , que indica ovalor de y para cada valor do vetor de insumos, ou seja, o crescimento da produçãosomente ocorre em conseqüência de deslocamento ao longo da fronteira de produção erequer o uso de combinações diferentes de insumos, o que implica, portanto, novosdispêndios. Outra representação da estrutura de produção é dada por1 2 ( , ,..., , ) s y = f x x x t , em que t não é um insumo e pertence aos números reaisnão-negativos. Agora, cada valor do vetor 1 2 , ,..., , s x x x produzirá uma quantidadediferente de y, à medida que t varia, ou seja, é possível obter uma produção maior semincorrer em custos. A questão que se coloca é a seguinte: O mundo real permitedistinguir entre as duas representações acima, qual delas é a de melhor poder descritivo?A resposta é não, ou seja, o mundo real não permite distinguir tecnologia cristalizada danão-cristalizada, no sentido que será especificado. Para dirimir a questão da tecnologiacristalizada, não se fará, diretamente, uso da função de produção, mas sim das taxas decrescimento do produto e dos insumos.
COMPETITIVIDADE DA SOJA E A GERAÇÃO DE DIVISAS
Authors: De Carvalho Maria Auxiliadora , Leite da Silva César Roberto , Ghilardi Arthur Antonio
Published: March 2020

A elevada dependência externa da economia brasileira torna a geração dedivisas uma preocupação permanente. Ao longo da década de 1990, a soja liderou asexportações agrícolas e se tornou a principal fonte de divisas. Logo, analisar suacompetitividade contribui para a compreensão da dinâmica econômica brasileira. Com oemprego de um conjunto de indicadores foi possível concluir que houve aumento decompetitividade no comércio de grão de soja a partir de 1997, mas ocorreram perdas nocomércio de farelo; que houve aumentos expressivos de produtividade da lavoura durantea década de 1990, mas, depois disso, o incremento da produção foi devido aoaumento de área; que entre 1991 e 2003 a participação dos fertilizantes, corretivos edefensivos no custo de produção dobrou, o valor das exportações de soja e derivados foimultiplicado por 4 e a despesa com insumos importados, multiplicada por 10; e queparte da competitividade alcançada não foi sustentável, dado que depende da conjunturainternacional e expõe o país a riscos decorrentes da grande concentração das fontes dedivisas.
Coste de las visitas médicas y urgencias asociadas al estrés laboral en España
Authors: González Álvarez María Luz , Gamero-Burón Carlos
Published: March 2020

Job stress is a serious problem for workers’ health, organizations and society. The aim of this paper is to assess the health care costs caused by the increase of health care services. Using the National Health Surveys (2006/07 and 2011/12), we have applied propensity score matching methods and microeconometric estimation in order to quantify the visits to general practitioner (GP), specialists and emergency visits due to job stress. In 2006/07 the assessment of these visits permits to conclude that the economic costs are 145.26 million € due to GP visits and emergency rooms. In 2011/12 the costs are 55.17 million € due to hospital emergencies.
Evaluation of quality and reliability of websites about orthognathic surgery using Google Trends™ application
Authors: Dilaver Emrah , Kılınç Delal Dara
Published: March 2020

Objectives:

Orthognathic surgery is the only treatment option for some cases in orthodontics. Two main goals were aimed in this study. The first goal was to determine the top three keywords that Google searchers look for “orthognathic surgery” using the Google Trends™ application. The second was to assess the quality and reliability of the webpages yielded by searching those four keywords on Google.

Materials and Methods:

Google Trends was searched using the keyword “Orthognathic Surgery.” Then, Google was searched using keywords: “Orthognathic surgery” and the other first three keywords. An oral surgeon and an orthodontist analyzed the quality and reliability of the websites using the DISCERN assessment tool.

Results:

The correlation between evaluators was low. Forty-six of the 70 websites were the websites of different oral and maxillofacial clinics and orthodontic clinics. The percentage of websites was 11% for personal doctor websites, 10% for academic journals, 7% for institutes, 6% for orthodontic clinics, and 1.4% for dental clinics. Overall rating scores of the websites for researchers were 2.41±1.35 for oral surgeon and 1.99±1.49 for orthodontist.

Conclusions:

The reliability and quality of the information in all of the websites was very low. The data on the websites did not have any scientific review processes such as review-peer review.
Index of Complexity, Outcome, and Need (ICON) in Dubai school-aged adolescents
Authors: AlHammadi Hebah Ali , Ferguson Donald J. , Makki Laith
Published: March 2020

Objectives:

The purpose of the study was to epidemiologically assess the prevalence of malocclusion and orthodontic treatment need in school-aged adolescents in Dubai using the Index of Complexity, Outcome, and Need (ICON). Null hypothesis tested was no significant differences in ICON scores among Dubai students as a function of gender or geographic/ethnic background.

Materials and Methods:

The sample was 17,763 adolescents with nearly equal by gender; India and the United Arab Emirates were represented about the same. Scores for malocclusion from Peer Assessment Rating (PAR) index evaluations combined with the esthetic component of the Index of Orthodontic Treatment Need (IOTN) comprised the ICON score.

Results:

Male ICON scores were significantly greater than female scores. Three scores contributing to ICON were significantly higher in males, i.e., buccal anterior-posterior occlusion, incisor overbite, and esthetic component. ICON scores for South Asia were significantly higher than the Middle East, i.e., 59.9 versus 52.4, P = 0.000. ICON scores were no different for the UAE males and females but otherwise significantly different (>) as follows: Indian males > Indian females > UAE males = UAE females.

Conclusions:

Dubai school-aged adolescents treatment need is the same for the UAE males and females, but there is a significantly greater orthodontic treatment need for males and females from India.
Dual-color immunocytochemistry (Ki-67 with LCA) for precise grading of pancreatic neuroendocrine tumors with applicability to small biopsies and cell blocks
Authors: Mejías-Badillo Linette , Jeanty Joshua , Khalid Kashan , Bhalla Amarpreet , Salem Nagla , Thomas Suma , Shidham Vinod B.
Published: March 2020

Ki-67 (MIB-1) immunostaining to quantify the proliferative index of neuroendocrine tumors (NETs) has been recommended (especially for small biopsies). However, this has a number of challenges with nonrepresentative Ki-67 index due to interference by Ki-67 immunoreactive proliferating lymphocytes infiltrating the tumor and also some proliferating stromal cells including endothelial cells in the background. Our pilot project showed that dual-color immunostaining with inclusion of leukocyte common antigen (LCA) (Ki-67: nuclear brown; LCA: cytoplasmic red) can facilitate the weeding out of lymphocyte interference. We analyzed the results with 23 surgical cases of pancreatic NETs. This was followed by poststudy examination of 11 cases of endoscopic ultrasound-guided fine-needle aspiration of the pancreatic NETs (PanNETs) to evaluate the findings of the study. Dual-color immunostaining for Ki-67 with LCA increased the precision of quantifying Ki-67 index, due to ability to exclude LCA immunoreactive lymphocytes. Other nontumor Ki-67 immunoreactive cells such as endothelial and stromal cells could be distinguished morphologically. Digital methods were also attempted, but this approach could not distinguish infiltrating lymphocytes and other cells in sections resulting in erroneous results. This study demonstrated that grading of PanNET can be performed with increased precision with dual-color Ki-67 immunostaining protocol standardized in this study. As evaluated on a few cytopathology cases, this protocol is especially useful for the evaluation of small biopsies and cell block sections of fine-needle aspiration biopsy material where 50 high-power fields cannot be evaluated but have >500 tumor cell nuclei.
Structural, Electronic and Optical Properties of Cubic Perovskite Cspbx3 (X= Br, Cl and I)
Authors: Abdulkareem Aawzad A. , Sami Sarkawt A. , Elias Badal H.
Published: March 2020

Plane waves with norm conserving pseudopotentials (PW-PP) method in conjunction with density functional theory (DFT) frame work have been used to investigate structural, electronic and optical properties of lead-halide cubic perovskite CsPbX3 (X=Br, Cl and I). The generalized gradient approximation (GGA), specifically Perdew-Burke-Ernzerhof (PBE) flavor, has been chosen to treat the exchange correlation term of Kohn-Sham equation. Structural parameters are comparable with other theoretical and experimental studies. In spite of good agreement of our band gap values  with other theoretical works, however, they were not comparable when compared to the experimental  values due to the well-known problem of Eg value underestimation of DFT. To update the  value, we have used GW method as a self-consistent quasiparticle method on energies and wave functions and indeed they have been improved. Optical properties have been calculated using density functional perturbation theory (DFPT). Our results show that CsPbX3 (X=Br, Cl, I) has maximum response to the electromagnetic spectrum at low energies (visible region) but minimum response at high energies.
PENGARUH KONSENTRASI PUPUK BIO ORGANIK PLUS DAN UREA TERHADAP PERTUMBUHAN DAN HASIL TANAMAN TIMUN SURI (Cucumis sativus L.)
Authors: Syarif Muhamad , Rosmawaty T. , Sutriana Selvia
Published: March 2020

The purpose of this study was to look at the effect of organic plus and urea biofertilizers on the growth and yield of (Cucumis sativus L.) interactively or primarily. The experimental design used was factorial Completely Randomized Design (RAL) consisting of 2 factors. The first factor is the provision of Bio-Organic Plus (P) fertilizer which consists of 4 levels, namely: 0, 2,5, 5, 7.5 cc / l water and the second factor is the administration of Urea (U) fertilizer which consists of 4 levels, namely: 0, 1,87, 3,75 and 5,62 g / plant. The parameters observed were an age of flowering, age of harvest, number of fruit crops, fruit weight and fruit weight. The results showed that the interaction of bio-organic plus and urea fertilizers significantly affected the number of fruits per plant, fruit weight per fruit and fruit weight per Suri cucumber plant. The best treatment is a combination of bio-organic fertilizer plus 7,5 cc / l water and urea fertilizer 3,75 g / plant (P3U2). In particular, the provision of bio-organic fertilizer plus significantly affected flowering age, harvest age, number of fruit crops, fruit weight and fruit weight. The best treatment is the administration of bio-organic fertilizer plus 7,5 cc / l water (P3). In particular, the administration of urea significantly affected flowering age, harvest age, number of fruit crops, fruit weight and fruit weight. The best treatment is giving urea fertilizer 3,75 g / plant (U2).
STRATEGI PENGEMBANGAN AGROINDUSTRI KERIPIK JAHE (JAHEKU) DI DESA KOTA RAYA KECAMATAN RENGAT KABUPATEN INDRAGIRI HULU
Authors: Maharani Evy , Ningsih Novi Dwi , Khaswarina Shorea
Published: March 2020

Agroindustry as the development of agricultural sector expected can play a part in to create a market to agriculture pickings through various its product of him. The strategy is big scale plan which has future reach priority which far is and also specified in such a manner so that enable organization to have interaction to effectively with its environment in a condition aimed at all emulation optimization attainment of target with a various pertinent organizational target. This research revenue analysis aim to the effort my ginger and compile correct development strategy to a worker of ginger in Kota Raya Village Rengat District Indragiri Hulu Regency. Result of research of Amount produce its month; moon ginger flaky that is 360 bale, whereas in acceptance to the effort my ginger that is Rp. 5.400.000. obtained net earning the effort my ginger Rp. 2.764.000 per month. correct Development strategy to worker of ginger flaky is: Increase product ginger flaky to fulfill request of market, conducting ginger flaky promotion and make more interesting tidiness to be an access to market broader, Maintaining market which has there is and looks for new market by improving opportunity of promotion by following existing exhibition; Braid cooperation with relevant institute to be is tough of capital employed and self-service to market product, managing health permit so that marketing of broader ginger flaky; Take care of the availability of raw material at the time of price of fluctuating and do product continuity by providing raw material stock and avoid too kept old raw material; Improve standard quality of especial raw material, supporter raw material in order not to easy to destroy, and also look for market information through newspaper, on duty commerce and follow existing exhibition, making better product can fulfill request of market.
UJI PEMBERIAN KOMPOS TANDAN KOSONG SAWIT DAN NPK 16:16:16 PADA PEMBIBITAN KELAPA SAWIT(Elaeis guineensis Jacq.) MAIN NURSERY DENGAN MEDIA SUB SOIL ULTISOL
Authors: Aminullah Aminullah , Rosmawati T. , Sulhaswardi Sulhaswardi
Published: March 2020

The purpose of this research is to know the influence of compost TKKS and NPK 16:16:16 on the breeding of oil palm (Elaeis guineensis Jacq.) in Main Breeding with Sub Soil Ultisol Media. This research has been conducted in the field of Agriculture Faculty of the Islamic University of Riau. for 4 months, starting from April to August 2017. The design used in this research is Factorial Random Design (RAL) consisting of two factors, the first factor is Giving of empty palm fruit bunch compost (Factor K) consisting of 4 levels ie not giving empty bunches of palm oil (K0), giving compost of oil palm empty bunch 90 gr/plant (K1), 180 gr/plant (K2) and 270 gr/plant (K3), and NPK 16:16:16 Fertilizer (Factor P) consisting of 4 levels ie not giving fertilizer (P0), NPK 16:16:16 15 g/plant (P1), 30 gr/plant (P2), 45 gr/plant (P3) and 60 gr/plant (P4). The parameters observed in this study were the increase of plant height (cm), the increase of the number of stem (strands), the length of the longest stem length (cm), the increase of girth (cm), the number of root root (root) and root length (cm). The result of the research showed that the interaction of TKKS compost and NPK 16:16:16 fertilizer gave a significant effect on the plant height increase, the increase of midrib, the length of the longest bark and the increase of girth. Combination of best treatment on compost TKKS 270 g/plant and NPK 16:16:16 60 g/plant (K3P4) fertilizer. The main effect of TKKS compost and NPK 16:16:16 fertilizer gave a significant effect on all parameters in the range of plant height, the increase of midrib, the length of the longest stem, the increase of girth, the number of root roots and the longest root length. With the best treatment is the compost TKKS 270 g/plant (P3) and fertilizer NPK 16:16:16 60 g/plant (P4).
PENGARUH PENEMPATAN KARYAWAN TERHADAP KINERJA KARYAWAN PADA PABRIK KELAPA SAWIT 1 BUKIT PAYUNG KABUPATEN KUNTAN SINGINGI
Authors: Fahrial Fahrial , Romanto Andri
Published: March 2020

This study aimed to determine the effect of staffing on the performance of employees at mills I Bukit Kuantan District Singingi Umbrella all employees mills I Mount Umbrella, sampling technique using simple random sampling as many as 57 people. In analyzing the data of this study data analysis using descriptive and quantitative methods, namely by processing the data obtained from the company, then analyzed using the theoretical basis as a means to solve problems, and then make a conclusion. The research result is seen from the results of the t-test where the value t count>t table (32,639>2,004) there is a significant positive influence between the placement of employees on employee performance. Judging from the coefficient of determination R Square of 0,951. This shows that the percentage contribution of staffing influence on employee performance is at 95%. While the remaining 5% is influenced by other variables not included in the study.
UJI PUPUK PETROGANIK DAN GRAND K TERHADAP PERTUMBUHAN SERTA PRODUKSI TANAMAN KACANG TANAH (Arachis hypogaea L.)
Authors: Pakpahan Jack Swanri , Zahrah Siti , Sulhaswardi Sulhaswardi
Published: March 2020

ABSTRACT

 

This research was carried out at the Experimental Garden of the Faculty of Agriculture, Riau Islamic University, Pekanbaru, from April to July 2019.  The purpose of this study was to determine the effect of the interaction and main fertilizer of Petroganik and Grand K on the growth and production of peanut plants. The method used was a Completely Randomized Design which consisted of two factors. The first factor was P (Petroganik) and the second factor was K (Grand-K), each of which consisted of 4 levels of treatment so that there were 16 treatment combinations. Each treatment consisted of 3 replications, so there were 48 experimental plots, consisting of 12 plants and 3 plants as observational samples with the total number was 576 plants. Data from the latest observations were analyzed by variance (ANOVA) and further tested with the significant difference in honesty (BNJ) at the 5% significant level. The results showed the interaction of Petroganik and Grand-K fertilizers significantly affected plant height, relative growth rate and weight of 100 seeds. The best combination of treatment in the application of Petroganic fertilizer was 81 g/plot and Grand K fertilizer was 14 g/plot (P3K2). The main effect of real Petroganik fertilizer on all parameters of observation with the best treatment was the application of Petroganic fertilizer as much as 81 g/plot (P3). The main effect of Grand K fertilizer was significant on all parameters observed with the best treatment was the application of Grand K fertilizer of 14 g/plot (K2).
IMPLIKASI PERUBAHAN UNDANG-UNDANG PEMERINTAHAN DAERAH TERHADAP KEWENAGAN TATA KELOLA PEMANFAATAN ENERGI DAN SUMBERDAYA MINERAL OLEH PEMERINTAHAN DAERAH DI INDONESIA
Authors: Setiawan Rizky
Published: March 2020

This paper attempts to examine the authority of the Regional Government following the amendment of the Regional Government Law Number 32 of 2004 to Law No. 23 of 2014. The compilation of this paper is based on a review of Library and Legislation. One of the important points in the amendment of the Law on Regional Government relates to the authority of the Regional Government in the Management of Mineral Resources. The implications of the amendments to the Law on Regional Government include the decreasing authority of the Government of Tinggua II related to the granting of permits and supervision of the utilization of energy and natural resources in the area of regencies / cities in Indonesia. public policy making (public policy making). Energy and Mineral Resources have now played a very important role in the development of the Indonesian economy, which serves as one of the backbone of state revenue. The management of Natural Resources needs to be done optimally, efficiently, transparently, sustainably and environmentally sound, and equitable in order to gain the greatest benefit for the people's sustainable prosperity.
Sentence Composition: Language Map of Beginner Writers
Authors: Shalawati Shalawati , Hadijah Sitti
Published: March 2020

This research was initiated to study the pattern of sentences written by students who were considered as beginner in their writing work. The further aim upon the study was to see what majority of the group approaches in developing their sentences in regards of their linguistic process as well as their idea organization. In respond to its initial drives, this study was approached in qualitative manner. There were 30 papers were examined and analyzed to synthesize the working approaches by the writers at common system and the attention was brought the individual sentence character and ideas organization throughout sentences and paragraphs. The findings suggest that the sentences were relatively good on language part but once the writing topics require their opinion and existing information, it started to decrease its quality. In such of writing, overgeneralized ideas and illogical structures are common. Therefore, since the writers were beginners, this research suggests supporting system that help the writers cope with their language barriers through introducing language on more complex language forms and together with practices. In addition to this, to support writers as the task environment increases reading materials are essential to help them build a more thoughtful writing piece.
Konsep Diri Perokok di Universitas Islam Riau
Authors: Riauan Muhd Ar. Imam , Sari Genny Gustina
Published: March 2020

Penelitian ini bertujuan untuk mengetahui bagaimana konsep diri perokok di kalangan dosen Universitas Islam Riau. Konsep diri yang merupakan seperangkat persepsi yang relatif stabil yang dipercaya orang mengenai dirinya sendiri. Penelitian ini menggunakan metode penelitian deskriptif kualitatif dan menggunakan teknik snowball sampling untuk nendapatkan informan yang merokok di Universitas Islam Riau. Dalam penelitian ini, peneliti melakukan wawancara mendalam kepada 10 orang informan untuk menggali konsep diri perokok. Hasil penelitian menunjukkan bahwa terdapat tiga konsep diri perokok di kalangan dosen Universitas Islam Riau. Hasil penelitian ini menujukkan bahwa terdapat tiga konsep diri perokok: 1) Perokok ketergantungan yaitu perokok yang ketergantungan positif, ketergantungan negatif dan ketergantungan adiktif;  2) Perokok Percaya diri memiliki rasa percaya diri dengan menghisap rokok dan memudahkan pergaulannya; 3) Status ekonomi mapan dengan menunjukkan rokok yang dihisap dan kemampuan mereka membeli rokok.
Single Crystal Growth of High-Pressure Phases of Ice and Salt Hydrate Far Below the Original Melting Point by Mixing Alcohol: Crystal Structure Determination of Magnesium Chloride Heptahydrate
Authors: Yamashita Keishiro , Komatsu Kazuki , Kagi Hiroyuki
Published: March 2020

An crystal-growth technique for single crystal x-ray structure analysis of high-pressure forms of hydrogen-bonded crystals is proposed. We used alcohol mixture (methanol: ethanol = 4:1 in volumetric ratio), which is a widely used pressure transmitting medium, inhibiting the nucleation and growth of unwanted crystals. In this paper, two kinds of single crystals which have not been obtained using a conventional experimental technique were obtained using this technique: ice VI at 1.99 GPa and MgCl2·7H2O at 2.50 GPa at room temperature. Here we first report the crystal structure of MgCl2·7H2O. This technique simultaneously meets the requirement of hydrostaticity for high-pressure experiments and has feasibility for further in-situ measurements.
Stabilization of Bilirubin Oxidase in a Biogel Matrix for High-performance Gas Diffusion Electrodes
Authors: Sedenho Graziela , Hassan Ayaz , Macedo Lucyano , Crespilho Frank
Published: March 2020

Enzyme immobilization on solid conducting surfaces faces some challenges for practical applications in technologies such as biosensors and biofuel cells. Short-term stability, poor electrochemical performance, and enzyme inhibition are some issues that remain unsolved. Here, we propose a simple methodology for bilirubin oxidase (BOD) immobilization on carbon-based gas-diffusion electrodes for a four-electron electrochemical oxygen reduction reaction (ORR). The enzyme is incorporated into a Nafion® polymeric matrix and cross-linked with glutaraldehyde by a one-pot reaction in a buffered solution, producing a stable BOD-based biogel. The biogel prevents the formation of enzyme aggregates, producing a homogeneous bioelectrode surface, and allows access to the direct electron-transfer mechanism of multicopper centers buried in the enzyme. A biocatalytic reduction current of -1.52 ± 0.24 mA cm-2 at 0.19 ± 0.06 V was observed under gas-diffusion conditions. Additionally, the bioelectrode showed an unprecedented long-term stability under continuous operation combined with satisfactory catalytic current without redox mediator, demonstrating that the BOD-based biogel provides a suitable microenvironment for long-term enzymatic activity involving a bio-three-phase interfacial reaction. Therefore, the present study contributes new insights into enzyme immobilization to overcome the critical short-term stability issue of enzyme-based electrochemical devices for practical applications.
Objects Interacting with Solidification Fronts: Thermal and Solute Effects
Authors: Tyagi Sidhanth , Huynh Hélène , Monteux Cécile , Deville Sylvain
Published: March 2020

In many materials processing routes, objects such as bubbles or particles interact with a moving solidification front. The output of this confrontation, from instantaneous encapsulation to complete rejection of objects, regulates the solidified microstructure and the spatial distribution of the objects, and thus the final properties of the materials. Here we investigate by in situ cryo-confocal microscopy how thermal conductivity and solute compete to control the interfacial curvature of the solidification front. We first validate the prediction of physical models in absence of solute, and then demonstrate the dominating effect of solute. In the case of cellular front morphology, we show that thermal effects depending on the particle conductivity induce a distortion of ice crystals thereby modifying the final microstructure of the solid. Overall our results show that to successfully predict and control solidification microstructure in the presence of objects, physical models that take into account both thermal and long-range solute effects are now required.
Genetic and molecular characterization of multicomponent resistance ofPseudomonasagainst allicin
Authors: Borlinghaus Jan , Bolger Anthony , Schier Christina , Vogel Alexander , Usadel Björn , Gruhlke Martin CH , Slusarenko Alan J
Published: March 2020

The common foodstuff garlic produces the potent antibiotic defense substance allicin after tissue damage. Allicin is a redox toxin that oxidizes glutathione and cellular proteins and makes garlic a highly hostile environment for non-adapted microbes. Genomic clones from a highly allicin-resistantPseudomonas fluorescens(PfAR-1), which was isolated from garlic, conferred allicin resistance toPseudomonas syringaeand even toEscherichia coli. Resistance-conferring genes had redox-related functions and were on core fragments from three similar genomic islands identified by sequencing and in silico analysis. Transposon mutagenesis and overexpression analyses revealed the contribution of individual candidate genes to allicin resistance. Taken together, our data define a multicomponent resistance mechanism against allicin inPfAR-1, achieved through horizontal gene transfer.
PENGARUH MODEL PEMBELAJARAN CIRCUIT LEARNING BERBANTU MULTIMEDIA DAN MEDIA SEDERHANA TERHADAP KREATIVITAS SISWA
Authors: Paranna Meike , Airlanda Gamaliel Septian
Published: March 2020

Tujuan penelitian ini adalah membuktikan perbedaan pengaruh penggunaan model pembelajaran Circuit Learning yang berbantu multimedia dan model pembelajaran circuit learning yang berbantu media sederhana terhadap kreativitas siswa. Jenis penelitian ini adalah eksperimen semu (Quasi Eksperiment Research)- non equivalent control group design. Teknik pengumpulan data melalui teknik observasi, tes dan dokumentasi. Hipotesis awal dalam penelitian ini adalah Ho: Model pembelajaran circuit learning berbantu media sederhana lebih berpengaruh terhadap kreativitas siswa. Dari hasil uji t menggunakan Independent Sample t-test menunjukkan bahwa thitung sebesar 2,393 dengan nilai signifikansi pada kolom Sig (2-tailed) sebesar 0,020. Berdasarkan hasil kriteria pengujian hipotesis, bahwa nilai signifikasinya menunjukkan 0,020 0,05 sehingga H0 ditolak dan Ha diterima, artinya model pembelajaran circuit learning berbantu multimedia lebih berpengaruh terhadap kreativitas siswa. Keberhasilan penelitian ini di dukung dengan adanya peningkatan hasil pretest ke postest dan juga rata-rata hasil penilaian kreativitas siswa yaitu membuat peta konsep/mind map yang lebih tinggi dibandingkan dengan menggunakan model pembelajaran circuit learning berbantu media sederhana.
Dual-band Bisected Psi Antenna for 3G, Wi-Fi, WLAN and Wi-MAX Applications
Authors: Sura Penchala Reddy , Reddy S. Narayana
Published: March 2020

This paper presents an inexpensive and simple dual-band bisected psi antenna for 3G, Wi-Fi, WLAN, and WiMAX applications is presented. The antenna comprises a bisected psi-shaped patch on a low-price FR4 substrate with a cropped ground plane on the other side, and is fed by a 50 Ω microstrip line. It operates at two distinct frequency bands of 1.87–2.76 GHz and 5.16–5.75 GHz with |S11|≤ -10 dB
A Comparison Study of DASH Technique by Video Streaming over IP with the Use of RTP and HTTP Protocols
Authors: Hoppe Christian , Uhl Tadeus
Published: March 2020

Today’s Internet knows no bounds. New applications are marketed every single day. Many of them incorporate video sequences. These must be transported over the Internet quickly (often in real time). However, the Internet has not been designed for live communications and, regrettably, this may become apparent all too quickly. Countermeasures are required in the form of new, eﬃcient transport techniques facilitating online video services. MPEG-DASH is one of such modern techniques. But how good is this new technique really? This paper delves into the matter. The paper contains an analysis of the impact that the new technology exerts on the quality of video streaming over IP networks. It also describes a new numerical tool – QoSCalc (DASH-HTTP) which has been used to analyze MPEG-DASH under diﬀerent use scenarios. The results are presented graphically and their interpretation is provided
Un panorama por el audiovisual aragonés en la década de los años ochenta
Authors: Sanz Ferreruela Fernando
Published: March 2020

Texto-homenaje a la época en la que surgió Neuróptica. Estudios sobre el cómic, que realiza un recorrido por un campo muy cercano a la historieta: el cine.

Cuando en 1983, tras las I Jornadas Culturales del Cómic impulsadas por Antonio Altarriba el año anterior, apareció el primer número de la revista Neuróptica, el panorama en el que se encontraban las artes audiovisuales y las llamadas «artes de masas» en nuestro país, puede definirse como una verdadera encrucijada.
Prototyp (2008), Archetyp (2009) y Antityp (2010):
Authors: Saxe Facundo
Published: March 2020

Resumen: Este artículo analiza desde una perspectiva sexo-disidente lo que se puede denominar como el «ciclo bíblico» del historietista alemán Ralf König. A partir de un trabajo con dispositivos cómicos y paródicos en tres textos este autor construye (re)interpretaciones «torcidas» de episodios canónicos de la Biblia. En Prototyp (2008) se reescribe el episodio de Adán, Eva, Dios y la serpiente en el Edén. En Archetyp (2009) se retoma el episodio de Noé y el diluvio. Finalmente en el último volumen, Antityp (2010) se trabaja con la figura bíblica de Paulus (Pablo) de Tarso. Este artículo pretende analizar esas obras para pensar cómo lo que puede parecer la «aparición» de nuevos temas en König tiene una raíz específica ya en obras de sus primeras etapas.

Abstract: This paper analyzes from a sex-dissident perspective the so-called biblical series of the german comic writer and cartoonist Ralf König. From a work with comic and parodic devices in three texts, this author constructs queer interpretations of canonical bible episodes. In Prototyp (2008) the episode of Adam, Eve, God and the serpent in Eden is rewritten. In Archetyp (2009) Noah's episode and the flood. Finally in the last volume, Antityp (2010) works with the biblical figure of Paulus (Paul) of Tarsus. This article analyze these comics to think how what may see new themes in König have a specific root in his early works.
Omnia sponte fluant absit violentia rebus
Authors: Harguindey Barrio Breixo
Published: March 2020

Reseña de: COMENIUS, J., Orbis Sensualium Pictus, Barcelona, Libros del zorro rojo, 2017.
An Open Letter to All IJEMM Members on COVID–19
Authors: Ali Mohammad Yeakub
Published: March 2020

Dear IJEMM Members
I wanted to provide an update to the broader community of International Journal of Engineering Materials and Manufacture (IJEMM) regarding our efforts to alleviate the spread of the COVID-19 coronavirus.
The Editorial Board is deeply sympathised with the people suffering worldwide due the outbreak of pandemic COVID-19. We are closely monitoring the outbreak and implementing social isolation and other measures, according to World Health Organisation guidelines, to mitigate the impact on our members, volunteers and customers around the world. As the safety of people is of highest priority, our aim is to continue delivering our services for editors, reviewers, authors, readers, and other members to the highest possible standards using our online web-based platforms.
I trust that each of you is doing well and finding ways to cope with this challenging pandemic situation which is a test from God, the almighty. Please stay safe, do not panic, heighten your spirituality and seek forgiveness.
With thanks and regards,
Professor Ir. Dr. Mohammad Yeakub AliEditor-In-ChiefInternational Journal of Engineering Materials and Manufacture