bluuebunny/crossref_metadata_2025 huggingface dataset:
Emerging Quantum Fields Embedded in the Emergence of Spacetime
Authors: Diel Hans
Published: May 2018

Based on a local causal model of the dynamics of curved discrete spacetime, a causal model of quantum field theory in curved discrete spacetime is described. At the elementary level, space(-time) is assumed to consists of interconnected space points. Each space point is connected to a small discrete set of neighbor space points. Density distribution of the space points and the lengths of the space point connections depend on the distance from the gravitational sources. This leads to curved spacetime in accordance with general relativity. Dynamics of spacetime (i.e., the emergence of space and the propagation of space changes) dynamically assigns "in-connections" and "out-connections" to the affected space points.  Emergence and propagation of quantum fields (including particles) are mapped to the emergence and propagation of space changes by utilizing identical paths of in/out-connections. Compatibility with standard quantum field theory (QFT) requests the adjustment of the QFT techniques  (e.g., Feynman diagrams, Feynman rules, creation/annihilation operators), which typically apply to three in/out connections, to  n > 3  in/out connections. In addition, QFT computation in position space has to be adapted to a curved discrete space-time.
Children’s School Readiness: Teachers’ and Parents’ Perceptions
Authors: Rahmawati Anayanti , Tairas Mareyke Maritje Wagey , Nawangsari Nur Ainy Fardana
Published: May 2018

ABSTRACT
 

The initial period of adjustment is something to be concerned about since it serves as a period, allowing to lay foundation for education which will contribute to children’s future academic life. It is not an easy period for children due to several school demands and expectations which should be fulfilled by children. To deal with this, children’s school readiness to attend their primary school is required. This qualitative research seeks to find out factors influencing children’s readiness to attend a primary school. The subjects of the research involved teachers and parents of children who planned to apply for admission into primary schools. The research results indicate that both teachers and parents of children shared the same perceptions regarding factors influencing the school readiness: cognitive and noncognitive factors. The former which involve reading, writing, and calculating skills are regarded significant since such skills are used as admission prerequisites for primary level in certain schools. Similarly, the latter are supposed to be important since they support children to successfully adjust to their primary school.

 

Keywords: school readiness; primary school; children
Polygonization of Point Cloud of Tunnels Using Lofting Operation
Authors: Hidaka Nao , Michikawa Takashi , Motamedi Ali , Yabuki Nobuyoshi , Fukuda Tomohiro ,   Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan,   Photonics Control Technology Team, RIKEN Center for Advanced Photonics, RIKEN, Wako, Japan,   École de Technologie Supérieure, Montréal, Canada
Published: April 2018

This paper proposes a novel method for polygonizing scanned point cloud data of tunnels to feature-preserved polygons to be used for maintenance purposes. The proposed method uses 2D cross-sections of structures and polygonizes them by a lofting operation. In order to extract valid cross-sections from the input point cloud, center lines and orthogonal planes are used. Center lines of the point cloud are extracted using local symmetry analysis. In addition, this research segments a point cloud of a tunnel into lining concrete, road, and other facilities. The results of applying the proposed method to the point clouds of three types of tunnels are demonstrated, and the advantages and limitations of the proposed method are discussed.
Construction and Visualization of 3D Landscape
Authors: Liu Pingping , Lu Zhaopan
Published: May 2018

In order to know the operation condition before working, and reduce the risk of serious accidents of coal production industry. In this paper, by analyzing the characteristics of the environment of underground mine, using virtual reality technology, combined with the 3d Max modeling techniques and VC++ calling the OpenGL graphics interface techniques, the models are well optimized based on progressive mesh LOD algorithm for edge collapse. Using high-tech computer technology to simulate realistic mine production environment and realization of a friendly man-machine interactive virtual mine application system.
Use of Rainfall Data to Improve Ground‐Based Active Optical Sensors Yield Estimates
Authors: Sharma L.K. , Bali S.K. , Zaeen A.A. , Baldwin P. , Franzen D.W.
Published: May 2018

Optical sensors are commonly used by the researchers to improve yield estimated in commercial crops.

This study was carried out in two states in two different crops, corn and potatoes, 2011–2013 and 2017, respectively.

The objectives of the study were to evaluate ground based optical sensors to predict yield potential across multiple locations, soils types, cultivation systems, and rainfall differences.

Ground‐based active optical sensors (GBAOS) have been successfully used in agriculture to predict crop yield potential (YP) early in the season and to improvise N rates for optimal crop yield. However, the models were found weak or inconsistent due to environmental variation especially rainfall. The objectives of the study were to evaluate if GBAOS could predict YP across multiple locations, soil types, cultivation systems, and rainfall differences. This study was carried from 2011 to 2013 on corn (Zea mays L.) in North Dakota, and in 2017 in potatoes in Maine. Six N rates were used on 50 sites in North Dakota and 12 N rates on two sites, one dryland and one irrigated, in Maine. Two active GBAOS used for this study were GreenSeeker and Holland Scientific Crop Circle Sensor ACS 470 (HSCCACS‐470) and 430 (HSCCACS‐430). Rainfall data, with or without including crop height, improved the YP models in term of reliability and consistency. The polynomial model was relatively better compared to the exponential model. A significant difference in the relationship between sensor reading multiplied by rainfall data and crop yield was observed in terms of soil type, clay and medium textured, and cultivation system, conventional and no‐till, respectively, in the North Dakota corn study. The two potato sites in Maine, irrigated and dryland, performed differently in terms of total yield and rainfall data helped to improve sensor YP models. In conclusion, this study strongly advocates the use of rainfall data while using sensor‐based N calculator algorithms.
Long‐term Changes in Soil and Stream Chemistry across an Acid Deposition Gradient in the Northeastern United States
Authors: Siemion Jason , McHale Michael R. , Lawrence Gregory B. , Burns Douglas A. , Antidormi Michael
Published: May 2018

Declines in acidic deposition across Europe and North America have led to decreases in surface water acidity and signs of chemical recovery of soils from acidification. To better understand the link between recovery of soils and surface waters, chemical trends in precipitation, soils, and streamwater were investigated in three watersheds representing a depositional gradient from high to low across the northeastern United States. Significant declines in concentrations of H+ (ranging from −1.2 to −2.74 microequivalents [μeq] L−1 yr−1), NO3− (ranging from −0.6 to −0.84 μeq L−1 yr−1), and SO42− (ranging from −0.95 to −2.13 μeq L−1 yr−1) were detected in precipitation in the three watersheds during the period 1999 to 2013. Soil chemistry in the A horizon of the watershed with the greatest decrease in deposition showed significant decreases in exchangeable Al and increases in exchangeable bases. Soil chemistry did not significantly improve during the study in the other watersheds, and base saturation in the Oa and upper B horizons significantly declined in the watershed with the smallest decrease in deposition. Streamwater SO42− concentrations significantly declined in all three streams (ranging from −2.01 to −2.87 μeq L−1 yr−1) and acid neutralizing capacity increased (ranging from 1.38 to 1.60 μeq L−1 yr−1) in the two streams with the greatest decreases in deposition. Recovery of soils has likely been limited by decades of acid deposition that have leached base cations from soils with base‐poor parent material.

Core Ideas

Reductions in acidic atmospheric deposition have accelerated in recent years.

Some streams, but not all, have shown a degree of recovery.

Soils have not shown a clear indication of recovery despite reductions in deposition.

Soil chemical recovery that has been evident has been limited to the Oa and A horizons.
A Rapid Seedling Assay for Determining Sweetpotato Resistance to Fusarium Wilt
Authors: Yang Zhijian , Lin Yuli , Chen Haizhou , Zou Weikun , Wang Songliang , Guo Qimao , Chen Xuanyang
Published: May 2018

Fusarium wilt, caused by Fusarium oxysporum f. sp. batatas (Woolenw.) W. C. Snyder & H. N. Hansen (abbreviated as “Fob”), is a devastating disease that can cause sweetpotato [Ipomoea batatas (L) Lam.] yield losses of up to 50%. A rapid and efficient assay can expedite the selection of Fusarium wilt‐resistant cultivars. A rapid seedling assay was developed to evaluate sweetpotato resistance to Fusarium wilt. Seedlings of three cultivars—JinShan 57 (highly resistant), JinShan 696 (moderately resistant), and XinZhongHua (highly susceptible)—were grown in suspensions containing different conidial concentrations of Fob. Inoculation with a Fob conidial suspension of 1 × 105 conidia mL−1, incubation of inoculated plants at 28°C, and assessment of disease development 12 d after inoculation provided optimal results. Resistance of 28 sweetpotato advanced breeding selections was evaluated in 2014 and 2015 using the rapid method and a conventional field test. These tests confirmed the reliability of the rapid method. This study demonstrates that the new assay is rapid, efficient, and can facilitate screening of large numbers of sweetpotato cultivars and selections for Fob resistance.
Factors of enterprises’ strategic selection of participation forms in integration formations
Authors: Stadnyk Vаlentyna , Izhevskiy Pavlo , Zamazii Oksana , Goncharuk Andriy , Melnichuk Oksana
Published: May 2018

The competitiveness of the national economy is ensured by mutually beneficial cooperation of various business activities and industrial specialization of business units. The purpose of this article is to identify the main motives of the economic behavior of business units in Ukraine, which predetermine structural changes in the industrial sector and agro-industrial complex, and to develop an algorithm for substantiating the strategic choice of participating forms in integration formations for the business development. The economic and statistical analysis has identified trends in structural changes in the industrial and agricultural sectors of the Ukrainian economy. By generalization of scientific views on the content of integration processes, there were identified the influence of institutional factors on the development of forms of integration interaction and maintaining the stability of integrational entities, and the factors of technological and logistic expediency on the formation and development of business networks. There was formed the algorithm of substantiation of strategic decisions regarding the choice of enterprises of the forms of participation in the integration formations of different types. The differences in the positions of the initiators of the business network creation and the participants involved in them were identified regarding the composition and relationships in the network that affect its sustainability. The application of this algorithm will ensure that the management of enterprises makes more substantiated decisions on the creation of an organizational framework for the implementation of competitive strategies in promising areas of inter-sectoral cooperation.
Statistical Analysis of Wind Energy Density in the Babuburnu-Çanakkale Region of Turkey
Authors: İLHAN Akın , BİLGİLİ Mehmet , ŞAHİN Beşir
Published: May 2018

The total of feasible wind energy potential is estimated to be 47 GW in Turkey, and especially Çanakkale, İzmir, Balıkesir and Hatay basins are excellent wind resources for wind farm installations. Therefore, the capability of the wind power potential of Bababurnu-Çanakkale province in the Marmara region of Turkey was reported in the context of this study. Parameters including the superior wind velocity direction, average wind velocity, Weibull and Rayleigh parameters, probability distribution, and wind power potential of this province were processed and analyzed in terms of annual, seasonal and monthly point of view. Finally, at a level of 10 m over the ground surface, the average wind velocity and average wind energy potential in this site were determined as 6.01 m/s and 257 W/m2, respectively according to the whole processed data. These data indicated that Bababurnu-Çanakkale region has an acceptable wind energy potential, which is quite reasonable for planting wind power turbines.
İş Sağlığı ve Güvenliği Yasal Mevzuatının Türkiye İnşaat Sektöründe Uygulanma Düzeyi
Authors: GÜVEL Şahin Tolga , LAPTALI ORAL Emel
Published: May 2018

İş kazalarının en çok görüldüğü sektörlerden birisi olan inşaat sektöründe iş sağlığı ve güvenliği ile ilgili mevzuatın uygulanmasında sorunlar bulunmaktadır. Bu çalışmada, Türkiye’deki iş kazalarını ve kaza sonucu ortaya çıkabilecek kayıpları en aza indirmek için yapılan yasal düzenlemelerin, inşaat sektöründeki uygulama düzeyi belirlenmeye çalışılmış ve bu kapsamda işçi-usta-formen, teknik personel, yapı denetim personeli, iş güvenliği denetim personeli ve üst düzey yönetici-işveren olmak üzere sektördeki beş farklı meslek grubu çalışanlarına anket uygulanmıştır. Yapılan anket çalışması, literatür bulguları ve yasal mevzuat da göz önüne alınarak değerlendirilmiş ve iş sağlığı ve güvenliği yasal mevzuatının Türkiye inşaat sektöründe uygulanma düzeyi incelenmiştir.
Use of bacterial spores in monitoring water quality and treatment
Authors: Stelma Gerard N.
Published: April 2018

Because Clostridium perfringens spores are both specific to sewage contamination and environmentally stable, they are considered as possible conservative indicators of human fecal contamination and possible surrogates for environmentally stable pathogens. This review discusses the reasons and summarizes methods for monitoring spores in water. Cultural methods are still preferred over qPCR for routine water quality monitoring because of their low costs. Membrane filter (MF) methods are preferred over the more laborious and less accurate most probable number methods. The most commonly used MF media are TSC medium and mCP medium. TSC normally allows higher recoveries than mCP. TSC produces fewer false-positive results than mCP; however, it does produce more false-negatives. Two newer methods have substantial potential, CP Chromo Select agar, which allows better recoveries and greater specificity than mCP, and the Fung double tube method, which creates anaerobic conditions and allows enumeration of colonies in tubes in 5–6 hours. Aerobic spores are not associated with fecal contamination but they can be surrogates for environmentally stable pathogens in monitoring water for treatment efficacy; Bacillus cereus spores are normally measured on nutrient agar by the MF method.
Effects of weather conditions on drinking water distribution pipe failures in the Netherlands
Authors: Wols B. A. , Vogelaar A. , Moerman A. , Raterman B.
Published: April 2018

The influence of the weather parameters of temperature, wind and drought on pipe failure of drinking water distribution pipes was studied for the Netherlands. Several data sources were used relating weather effects to pipe failure: pipe failure data, regional weather data from different weather stations in the Netherlands, soil settlement data obtained from satellites and (modelled) pressure data. For asbestos-cement (AC) and cast iron (CI) pipes, temperature was an important factor. CI pipes showed increased pipe failures at low temperatures, which confirms results from previous studies, whereas AC pipes showed increased pipe failures at high temperatures. Pipe failure rates were higher for pipes that on average received higher internal pressures. This study also showed that wind resulted in additional pipe failures caused by uprooting of trees during a severe storm. With respect to drought, in some regions in the Netherlands, increased pipe failures during periods of drought were found. A small influence of soil settlement on pipe failure was found using remote-sensing techniques for a small area (5 × 10 km) in the Netherlands.
Treatment of discontinuous emission of sewage sludge odours by a full scale biotrickling filter with an activated carbon polishing unit
Authors: Sempere F. , Winter P. , Waalkens A. , Hühnert N. , Cranshaw I. , Beigi B. , Thorpe R. B.
Published: May 2018

A SULPHUSTM biotrickling filter (BTF) and an ACTUSTM polishing activated carbon filter (ACF) were used at a wastewater treatment plant to treat 2,432 m3·h−1 of air extracted from sewage sludge processes. The project is part of Thames Water's strategy to reduce customer odour impact and, in this case, is designed to achieve a maximum discharge concentration of 1,000 ouE·m−3. The odour and hydrogen sulphide concentration in the input air was more influenced by the operation of the sludge holding tank mixers than by ambient temperature. Phosphorus was found to be limiting the performance of the BTF during peak conditions, hence requiring additional nutrient supply. Olfactometry and pollutant measurements demonstrated that during the high rate of change of intermittent odour concentrations the ACF was required to reach compliant stack values. The two stage unit outperformed design criteria, with 139 ouE·m−3 measured after 11 months of operation. At peak conditions and even at very low temperatures, the nutrient addition considerably increased the performance of the BTF, extending the time before activated carbon replacement over the one year design time. During baseline operation, the BTF achieved values between 266–1,647 ouE·m−3 even during a 6 day irrigation failure of the biofilm.
Cosmovisiones y agroecolog�a: reciprocidad, mercado y territorialidad en el noreste brasile�o y sureste mexicano
Authors: Gon�alves Alicia Ferreia , Torres Maria Elena Martinez
Published: May 2018

Este ensayo presenta una reflexi�n y un conjunto de indagaciones sobre posibilidades de la agroecolog�a en mejorar las condiciones de vida de familias que viven en territorios rurales en noreste brasile�o y sureste mexicano. Son apreciadas dos experiencias con principios de la agroecolog�a: la producci�n org�nica de caf� de ind�genas y mestizos del estado de Chiapas y la producci�n org�nica de algod�n colorido del estado da Para�ba. En la introducci�n presentamos el escenario donde es configurada la agenda agroecol�gica en el mundo, en especial, Am�rica Latina y Caribe, a continuaci�n um breve recorrido en la historia agraria de Para�ba y Chiapas. En la siguiente sesi�n presentamos una breve descripci�n de las experiencias de la producci�n org�nica del algod�n y caf� y las cuestiones relacionadas a los territorios como la soberan�a alimentaria y la autonom�a. Al final son lanzadas los planteamientos que las referidas experiencias suscitan: �C�mo se articulan las cosmovisiones y el conocimiento nativo en la producci�n org�nica y otros conocimientos t�cnicos? �C�mo activar sus identidades construidas a partir de sus respectivas cosmovisiones y la lucha por el territorio en el proceso de producci�n del algod�n y el caf� org�nico? �Estar�a la producci�n org�nica d�ndole un nuevo sentido (SAHLINS, 1999, 2004) a las identidades y cambiando las condiciones de vida de las familias de colonos que viven en las comunidades rurales? �C�mo se articulan cosmovisiones y mercado? �Conocimientos tradicionales y el mercado? �C�mo combinar tradici�n y mercado?
Effects of site preparation on physical and chemical properties as indicators of forest soil quality
Authors: Fonseca Felícia , Figueiredo Tomás de
Published: May 2018

Soil quality evaluation is an important tool to observe the sustainability of soil management practices. Therefore, an evaluation methodology was applied to seven sets of site preparation operations for forest stand installation (treatments), in order to assess their impacts on soil quality parameters. Treatments considered were (ranked from lowest to highest tillage intensity): (1) Original soil control (no intervention on the original abandoned field) (TSMO); (2) No subsoiling, no ploughing, plantation with hole digger (SMPC); (3) Subsoiling over the whole area, with covering shovel; (RCAV); (4) No subsoiling, contour bunds shaped by two plough passes (SRVC); (5) Subsoiling in future plantation rows, contour bunds shaped by two plough passes (RLVC); (6) Subsoiling over the whole area, contour bunds shaped by two plough passes (RCVC); (7) Subsoiling over the whole area, contour ploughing over the whole area (RCLC). These were applied in an experimental site near Macedo de Cavaleiros, NE Portugal, covering 1125 m2 each, further planted with a mixed stand (Douglas fir, Pseudotsuga mensiezii, and Chestnut, Castanea sativa). In each one of the treatments, 6 soil profiles were observed and sampled in the plantation row of the newly installed forest stand. Soil quality evaluation was done taking into account soil morphology features, soil analyses results at 0-20, 20-40 and 40-60 cm depth, and enrichment ratios of soil parameters computed with data of actual and undisturbed conditions. The treatments SRVC, RLVC and RCLC showed the highest depth with an increasing of 20 to 40 cm when compared with the original situation. Also the same treatments presented the highest values of carbon and nitrogen in the layer 20-40 cm, but the lowest in the surface soil layer. Generally, no significant differences were found among treatments in what concerns exchangeable bases and acidity, cation exchange capacity, base saturation and pH values. The amounts of finer particles tend to increase with tillage intensity and, on the contrary, the opposite trend was found for bulk density. For the studied conditions, the SRVC and RLVC treatments seem to be the most adequate set of site preparation operations for new plantations of forest stands.
O contributo do turismo para o desenvolvimento das regiões
Authors: Martins Catarina A. , Morais Antónia A. , Morais Antónia A.
Published: May 2018

O turismo é uma atividade económica que cada vez mais surge como aposta essencial para o desenvolvimento das regiões. O presente trabalho resulta de uma extensa revisão da literatura que pretende essencialmente identificar quais os fatores que estão na base do desenvolvimento de uma região no que ao turismo diz respeito, designadamente, a atração de investimento externo para a região, a organização em rede e o estabelecimento de parcerias, a criação de produtos-território assentes em clusters para o turismo, a governância das redes e das instituições envolvidas no planeamento local e a importância dos critérios económicos. Discute-se ainda a dicotomia desenvolvimento versus crescimento e apresenta-se uma reflexão teórica em torno da importância do turismo sustentável no desenvolvimento das regiões.
Panorama da certificação de produtos orgânicos no Brasil e dos instrumentos nacionais de garantia da conformidade: uma análise a partir do Cadastro Nacional de Produtores Orgânicos
Authors: Marini Fillipe Silveira , Xavier Lucas Hipolito , Silva Daniel Vilar da , Barros José Romário Lacerda de , Barbosa Gustavo José , Silva Flávia Janaína de Araújo , Silva Valter da
Published: May 2018

Esse trabalho teve como objetivo apresentar um panorama geral referente à certificação de produtos orgânicos no Brasil a partir da análise do Cadastro Nacional de Produtores Orgânicos. A análise foi realizada a partir da sistematização de informações do Cadastro Nacional de Produtores Orgânicos levantadas junto à página do Ministério da Agricultura, Pecuária e Abastecimento, com posterior discussão dos resultados com base em referências obtidas por meio de revisão de literatura acerca do tema estudado. Verificou-se que o sistema de certificação por auditoria apresentou o maior número de produtores certificados no Brasil, sendo identificada uma maior concentração de produtores certificados nos estados do Nordeste e Sudeste. A região Sul do país apresentou o maior número de produtores certificados de forma participativa e a região Nordeste congregou a maior parte dos produtores credenciados à Organizações de Controle Social para a venda direta de produtos orgânicos. O Cadastro Nacional de Produtores Orgânicos é uma importante ferramenta para a obtenção de informações referentes ao panorama nacional referente a produção orgânica.
Soy Isoflavones and their Effects on Xenobiotic Metabolism
Authors: Zhou Tianjiao , Meng Chengzhen , He Pingli
Published: April 2018

Background:

Soy isoflavones, such as genistein and daidzein, are bioflavonoids found in soy products that are able to interact with various hormones such as estrogen. Epidemiological studies reveal a proper level of isoflavones in diet can prevent many diseases like cancers or diabetes. Therefore, it is important to study the biotransformation and xenobiotic metabolism of soy isoflavones.

Methods:

A systematic review of published studies was carried out to investigate the characterization of isoflavones and their metabolites, sample pretreatment and quantitative analysis of isoflavones, and the influence of soy isoflavones on drug and xenobiotic metabolism.

Results:

Aglycones with weak estrogen-like activities are the biologically active forms of the soy isoflavones in mammals. The most recent advances including extraction, purification and detection of isoflavones in soybean and soy products are discussed. The effects of soy isoflavones on drug and xenobiotic metabolism involve in regulation of phase I cytochrome P450 (CYPs) enzyme and phase I detoxifying enzymes expression and activity. At the molecular level, soy isoflavones have proved capable of estrogenic/antiestrogenic with tissue-selective, anti-cancer, antiobesity, anti-oxidation, and tyrosine kinase inhibition activities.

Conclusion:

This review summarized different aspects of soy isoflavones and their molecular mechanisms of pharmacological action on xenobiotic, which demonstrated that soy isoflavones can decrease the incidence of many diseases and benefit for human health. However, since the lack of clinical research for evaluation of the proper dosage of intake of soy isoflavones in diet or adjunctive therapy, there is a need for further studies on the selection of doses, biomedical applications and adverse effects of isoflavones for human health.
The Successful Treatment of Pulmonary Embolism as a Complication after Uterine Fibroid Embolization (Case Report)
Authors: Vatutin Nikolay Т. , Taradin Gennadiy G. , Smyrnova Ganna S. , Kostogryz Valery B. Kostogryz B. , Kolesnikov Vadim S. , Dmitriev Andrey V.
Published: April 2018

Background:

Uterine fibroid embolization (UFE) is as an effective alternative to
hysterectomy and myomectomy. However, UFE is associated with a wide spectrum of complications
including in rare instances thromboembolic events and even pulmonary embolism (PE).

Case Presentation:

A case of a 36-year-old woman suffering from a symptomatic uterine fibroid is
described as follows. The patient underwent UFE and overnight she suddenly collapsed with signs of
massive PE. In consequence of cardiopulmonary resuscitation and urgent systemic thrombolytic
therapy, cardiac activity was restored successfully.

Discussion & Conclusion:

This constitutes another report of PE developed following UFE. In the
case described here PE occurred 26 hours after the procedure was performed. Before UFE all patients
should undergo complete examination for exclusion of pre-existing venous deep thrombosis and
coagulopathies.
ممارسات القيادة الخادمة ودورها في تعزيز الثقة التنظيمية
Authors: Aziz Delman A. , Abdullah Daroon F. , Mohammed Jalal A.
Published: April 2018

يهدف هذا البحث الى التعرف على دور القيادة الخادمة بممارساتها (تمكين وتنمية الاخرين– التواضع– الموثوقية – قبول من قبل الاخرين – تقديم التوجيهات- القيام بخدمة الاخرين) في تعزيز الثقة التنظيمية في المعهد التقني في السليمانية.وبعد مراجعة ادبيات البحث تم كتابة المفاهيم النظرية وبناء النموذج والفرضيات اعتماداً على ممارسات القيادة الخادمة والثقة التنظيمية ،حيث تم تصميم استمارة استبيان لجمع البيانات وتم تطوير المقاييس باعتماد اسلوب العينة العشوائية، وتم توزيع استمارة استبانة على عينة البحث المتمثلة بالعاملين (الهيئة التدريسين والموظفين) في المعهد التقني في السليمانية. واستخدمت عدة أساليب إحصائية منها ألفا كرونباخ  والمحكمين للتأكد من الصدق والثبات، وتحليل  الارتباط البسيط والانحدارالخطي البسيط، وأظهرت النتائج وجود علاقة ارتباط واثر إيجابية بين المتغيرات.  وبناءا على نتائج البحث تم تقديم عدد من التوصيات المتعلقة بضرورة تركيز الادارات العلمية والقياديين على اتباعهم للمارسات القيادة الخادمة من اجل تعزيز الثقة التنظيمية في المنظمة المبحوثة. كما وتم تقديم توصيات للمعاهد والمؤسسات  والادارات الاخرى  ومقترحات للدراسات المستقبلية في هذا المجال.
Creating Engaging Health Promotion Campaigns on Social Media: Observations and Lessons From Fitbit and Garmin (Preprint)
Authors: Edney Sarah , Bogomolova Svetlana , Ryan Jillian , Olds Tim , Sanders Ilea , Maher Carol
Published: April 2018

BACKGROUND

The popularity and reach of social media make it an ideal delivery platform for interventions targeting health behaviors, such as physical inactivity. Research has identified a dose-response relationship whereby greater engagement and exposure are positively associated with intervention effects, hence enhancing engagement will maximize the potential of these interventions.

OBJECTIVE

This study examined the social media activity of successful commercial activity tracker brands to understand which creative elements (message content and design) they use in their communication to their audience, which social media platforms attract the most engagement, and which creative elements prompted the most engagement.

METHODS

Posts (n=509) made by Fitbit and Garmin on Facebook, Twitter, and Instagram over a 3-month period were coded for the presence of creative elements. User engagement regarding the total number of likes, comments, or shares per post was recorded. Negative binomial regression analyses were used to identify creative elements associated with higher engagement.

RESULTS

Engagement on Instagram was 30-200 times higher than on Facebook, or Twitter. Fitbit and Garmin tended to use different creative elements from one another. A higher engagement was achieved by posts featuring an image of the product, highlighting new product features and with themes of self-improvement (P<.01).

CONCLUSIONS

Findings suggest that Instagram may be a particularly promising platform for delivering engaging health messaging. Health messages which incorporate inspirational imagery and focus on a tangible product appear to achieve the highest engagement. Fitbit and Garmin employed difference creative elements, which is likely to reflect differences in their target markets. This underscores the importance of market segmentation in health messaging campaigns.
Klasifikasi Teh Hijau dan Teh Hitam Tambi-Pagilaran dengan Metode Principal Component Analysis (PCA) Menggunakan E-Nose
Authors: Inca Inca , Widodo Triyogatama Wahyu , Lelono Danang
Published: April 2018

This research aims to classification of samples of green tea and black tea originated from different planting sites,  Tambi and Pagilaran. Samples of green tea and black tea; quality I (BOP), quality II (BP), quality III (Bohea) were each collected from Tambi and Pagilaran to analyze the charasteristic of both sample from both sites. Measurements of tea samples were performed using a dynamic e-nose device based on a MOS gas sensor, with a maximum set point temperature of 40ºC, flushing 300 seconds, collecting 120 seconds, and purging 80 seconds for 10 cycles repeatedly. The resulting sensor response is then processed using the difference method for baseline manipulation. Characteristic of extraction process on the sensor response results is carried out in three methods; relative, fractional change, and integral. Matrix data of the feature extraction results was reduced using the PCA method by mapping the aroma patterns of each sample using 2-PCA components. The PCA reduction results in integral feature extraction showed the largest percentage of cumulative variance in classifying green tea sample data by 97% and black tea by 100%. The large percentage value of cumulative variance indicates PCA can differentiate samples of green tea and black tea from Tambi and Pagilaran well.
El discurso de China sobre el Nuevo Modelo de Relaciones entre Grandes Potencias y la relación con Estados Unidos durante los gobiernos de Bush y Obama (2005-2017)
Authors: Rocha Pino Manuel De Jesús
Published: April 2018

A partir de 2012, el gobierno de la República Popular China instrumentó un discurso político que aspira a redefinir sus relaciones con Estados Unidos: el denominado Nuevo Modelo de Relaciones entre Grandes Potencias (NM). El nm es un ofrecimiento de China para estructurar una relación sino-estadounidense basada en términos políticamente simétricos. Un componente básico del modelo es el respeto mutuo de los proyectos de integración megarregional que han impulsado ambas potencias: algo relevante para el Proyecto Cinturón y Ruta. En esta investigación se describe la trayectoria de la relación China-Estados Unidos durante el periodo 2005-2017 que contribuyó a definir la estructuración del nm. Asimismo, se describen los límites del discurso chino y los riesgos que puede enfrentar la relación bilateral.
Efek Penambahan Tepung Daun Kelor (Moringa Oleifera) Pada Ransum Komersial Terhadap Berat Karkas, Persentase Karkas dan Persentase Non Karkas Ayam Broiler
Authors: Haril Jery Daku , Tonga Yan , Kaca I Nyoman
Published: May 2018

One of the efforts to fulfill the community's nutritional resources derived from animal protein is by broiler farming business. In order for broiler chickens to achieve optimal productivity then the provision of proper rations in both quality and quantity must be met, but the obstacle in improving the quality of the ration is the cost of ration is large enough. It is necessary to research the feed material that is able to meet the needs of broiler chicken one of them is the leaves kelor. This research used broiler strain CP-707 as much as 60 tail. The method used is CRD (Completely Randomized Design) with 5 treatments and 4 replications. The treatments were rations with no addition of moringa flour (PO), ration with addition of 3% maize flour (P1), ration with addition of 6% maize flour (P2), ration with addition of maize flour 9% (P3), ration with the addition of 12% maize flour (P4). The variables observed in this study were carcass weight, carcass percentage and non carcass percentage. From the results of this study it can be concluded that the addition of moringa flour on ration to 12% level on carcass weight, carcass percentage and non carcass percentage statistically show different not significant.
Da manchete ao post: a formação de múltiplas agendas nas redes sociais
Authors: Vieira Adriana Barsotti
Published: April 2018

O crescimento das mídias sociais como meio de acesso às notícias traz cada vez mais desafios ao jornalismo em rede. É por links compartilhados nas redes sociais que mais da metade da população mundial com acesso à internet se informa, reduzindo o alcance das manchetes tradicionalmente selecionadas pelos jornalistas. Nas mídias sociais, algoritmos regulam os regimes de visibilidade da notícia, pulverizando a agenda noticiosa. O presente artigo, por meio de entrevistas em profundidade e da análise de conteúdo de posts e chamadas de primeira página dos três principais jornais de referência do país – Folha de S.Paulo, O Globo e O Estado de S.Paulo – discute até que ponto os jornalistas também não estariam contribuindo para a formação de múltiplas agendas no Facebook.
DUZENTOS ANOS DE 1817: CAMINHOS HISTORIOGRÁFICOS E ALGUMAS DISCUSSÕES SOBRE A REVOLUÇÃO PERNAMBUCANA
Authors: Andrade Breno Gontijo
Published: April 2018

O artigo trabalha com a produção historiográfica da Revolução Pernambucana de 1817 ao longo de quase duzentos anos. Textos dos revolucionários, realistas, viajantes, historiadores, observadores embasam o estudo. Também questiona o esquecimento da historiografia sobre a Revolução de 1817: primeiro movimento a ter sucesso em sua declaração de independência da Coroa portuguesa, primeiro movimento a buscar ajuda política, militar e econômica de outros países, primeiro movimento a criar uma pré-constituição no Brasil, primeiro movimento a ter grande apoio da maçonaria e do clero que pegou em armas, primeiro movimento a ter centenas de presos acusados de crime de lesa-majestade.
HISTÓRIA DA BELEZA E PRÁTICAS EDUCATIVAS DE ADESTRAMENTO DOS CORPOS FEMININOS NO BRASIL
Authors: Meneses Joedna Reis de , Soares Jr. Azemar Dos Santos , Araújo Edna Maria Nóbrega
Published: April 2018

Neste artigo, propomos analisar a construção histórica destas práticas educativas moldadoras dos corpos femininos, principalmente no Brasil do final do século XX e na primeira década do século XXI. Para tanto, realizamos uma pesquisa nas revistas Veja, Isto é, Dieta já e Boa Forma, publicadas no período citado. Os sentidos produzidos nos discursos enfatizam o pensamento de que a aparência convencionada como sendo a da beleza está ao alcance de todas as pessoas. Eles enunciam a idéia de uma liberdade de escolha que, de fato, procura aprisionar o conceito de beleza em um único sentido vitorioso: o da perfeição. A multiplicidade da palavra beleza procura ser colocada no esquecimento e de certo modo se aposta em um movimento anti-histórico que, aparentemente, procura determinar uma nova essência para os sujeitos a ser encontrada nos perfis de beleza difundidos.
EXPERIMENTOS EXPLORATÓRIOS E EXPERIENTIA LITERATA: (RE) PENSANDO A EXPERIMENTAÇÃO
Authors: Raicik Anabel Cardoso , Peduzzi Luiz O. Q. , Angotti José A. P.
Published: April 2018

Francis Bacon é, por vezes, apontado como o primeiro filósofo experimental e, normalmente, sua filosofia é atrelada à ideia comum empírico-indutivista. A fim de mostrar uma nova imagem baconiana, este artigo analisa partes de sua principal obra, o Novum Organum, e apresenta seu conceito de experientia literata, pouco conhecido. Além disso, explicita contrapontos entre algumas considerações apresentadas por Bacon e certas concepções do “novo experimentalismo”, sobretudo à luz do conceito de experimentação exploratória delineado por Steinle. Por fim, aborda-se algumas implicações dessas reflexões para o ensino de ciências.
MODELAGEM ANALÓGICA NO ENSINO DE CIÊNCIAS
Authors: Mozzer Nilmara Braga , Justi Rosária Da Silva
Published: April 2018

Neste artigo, nos propusemos a investigar: (i) as etapas que podem ser usadas para guiar a proposição e o desenvolvimento de atividades de modelagem analógica no ensino de ciências; e (ii) como atividades de modelagem analógica propostas com base naquelas etapas podem ter contribuído para que os estudantes de ciências vivenciassem os subprocessos do raciocínio analógico. Para atender ao primeiro propósito, adaptamos as etapas apresentadas na literatura para o processo de modelagem de forma que possibilitassem a elaboração, crítica e revisão de modelos e analogias. Para atender ao segundo propósito, realizamos um estudo empírico no qual desenvolvemos uma sequência ensino sobre o tema dissolução, fundamentada na modelagem analógica. A sequência foi desenvolvida em uma turma de Química do primeiro ano do ensino médio e deu origem ao estudo de caso analisado neste artigo. Nossos resultados evidenciaram elementos específicos das atividades de modelagem analógica que favoreceram a ocorrência dos subprocessos de raciocínio analógico, inclusive daqueles identificados como não espontâneos em estudos anteriores. Destacamos como uma das implicações deste estudo, que a descrição proposta para as etapas da modelagem analógica pode orientar professores e pesquisadores na proposição e condução de atividades voltadas para o ensino de ciências, nas quais modelos e analogias são criados, criticados e revisados pelos estudantes, num processo em que os significados vão sendo gradualmente negociados na tentativa de se compreender a entidade modelada.
UTILIZAÇÃO DO PERFIL CONCEITUAL DE SUBSTÂNCIA NO PLANEJAMENTO DO ENSINO E NA ANÁLISE DO PROCESSO DE APRENDIZAGEM
Authors: Sabino Jaqueline Dantas , Do Amaral Edenia Maria Ribeiro
Published: April 2018

Este estudo teve como objetivo analisar a emergência de zonas do perfil conceitual de substância e o processo de conceituação vivenciado por alunos quando envolvidos em diferentes atividades em sala de aula. O percurso metodológico foi constituído por duas etapas: planejamento e estruturação de uma sequência de ensino e aprendizagem utilizando para o seu desenho, a perspectiva de Mehéut (2005) e zonas do perfil conceitual de substância proposta por Silva e Amaral (2013); e aplicação das atividades planejadas para análise do processo de conceituação vivenciado por alunos ao longo da sequência. Três aulas foram gravadas em vídeo (total de 4h) e posteriormente transcritas e analisadas, um questionário foi aplicado para toda turma e uma entrevista foi realizada com dois deles. Os resultados mostraram que quatro das cinco zonas do perfil conceitual de substância emergiram ao longo das aulas e em resposta ao questionário – generalista, utilitarista/pragmática, substancialista e racionalista - e não identificamos a emergência de ideias representativas da zona relacional. Verificamos que as diferentes atividades desenvolvidas em sala de aula promoveram mudanças nas formas de falar dos alunos e uma alternância entre diferentes modos de pensar caracterizou o processo de conceituação vivenciado pelos alunos. Esses resultados apontam para um aspecto relevante da prática docente: a importância de o professor ter conhecimento sobre os diferentes modos de pensar o conceito de substância, uma vez que eles desempenham um importante papel, não só no planejamento, mas também na mediação e direcionamento das discussões nas aulas.
ANALISIS RESPON PENGONTROL ON-OFF PADA KENDALI UMPAN BALIK SISTEM FISIS ELEKTRONIK
Authors: Hidayat Darmawan
Published: April 2018

Pengontrol On-Off merupakan salah satu jenis aksi pengontrolan yang banyak digunakan pada kontrol otomatis di industri karena kontrol ini sederhana dan relatif murah. Terdapat dua aspek penting yang harus dipertimbangkan pada pengontrol on-off. Pertama adalah frekuensi osilasi respon yang berpengaruh pada umur ketahanan komponen aktuator. Kedua adalah amplitudo osilasi respon yang memengaruhi besar rugi-rugi energi pada respon sistem kendali keseluruhan. Makalah ini memaparkan suatu strategi dalam mengatur frekuensi dan amplitudo osilasi respon dengan menerapkan histeresis pada bagian pengontrol on-off. Pengaruh parameter waktu tunda (delay) dan penguatan (gain) histeresis terhadap frekuensi dan amplitudo osilasi respon sitem kendali on-off diteliti. Sebagai implementasi, bagian-bagian sistem pengontrol on-off meliputi detektor kesalahan dan waktu tunda histeresis diwujudkan dengan mikrokontroler AT89C51. Saklar elektronik digunakan sebagai model fisis aktuator on-off. Blok sistem proses (plant) dan umpanbalik diwujudkan dengan model fisis elektronik rangkaian resistor dan kapasitor (R dan C) orde satu. Dengan cara ini seluruh besaran fisis yang terlibat adalah berupa tegangan sehingga memudahkan dalam analisis respon sistem kendali on-off karena dapat ditampilkan pada osiloskop guna keperluan pengamatan di laboratorium. Hasil analisis respon dari eksperimen dan simulasi menunjukkan bahwa jika waktu tunda histeresis semakin besar maka frekuensi osilasi menurun namun amplitudo osilasi meningkat dan waktu settling semakin besar. Selain itu, jika penguatan histeresis semakin besar maka frekuensi osilasi respon menurun namun amplitudo osilasi meningkat dan waktu settling semakin cepat. Hasil pengujian menyimpulkan bahwa penerapan histeresis dapat menentukan performansi suatu sistem kendali on-off sehingga pengguna dapat mengatur respon sistem kendali sesuai dengan kriteria pengontrolan yang ditentukan dan diperlukan.
PERTUMBUHAN STEK HORIZONTAL BATANG JARAK PAGAR (Jatropha curcas L.) YANG DIINTRODUKSI DENGAN PSEUDOMONAD FLUORESEN
Authors: Advinda Linda
Published: April 2018

Jatropha curcas L. is one of the plants that can be developed as raw material of biodiesel. One of the efforts to increase the production of J. curcas is the propagation of stem cuttings horizontally. Efforts to stimulate root growth can be accomplished by adding Plant Growth Regulators (PGRs). PGRs can be obtained naturally or synthetically. Indole acetic acid (IAA) is one of PGRs, which is not only produced by plants but can also be produced by rhizobacteria. One such rhizobacteria is fluorescent pseudomonad. The objectives of the study were to know the response of growth of horizontal stem cuttings after being introduced with fluorescent pseudomonad. This research is an experimental research.  Complete Randomized Design with 6 treatments and 4 replications. The treatments were soaking of J. curcas stem cuttings with fluorescent pseudomonad isolate suspension PfPj3 suspension concentration of 0% (without suspension), 5%, 10%, 15%, 20%, and 25%. Observation of the research is the beginning of the shoots, the number of shoots, and the length of the J. curcas stem shoot. The data obtained were analyzed using Anova and DNMRT significant level of 5%. The results showed that horizontal stem cuttings of J. curcas with fluorescent pseudomonad suspension influenced early shoot, shoot number, and shoot length. A 10% fluorescent pseudomonad concentration can cause shoots to appear early, while a concentration of 20% causes the largest number of shoots.
Akademisyen olmak: Genç akademisyenlere öneriler
Authors: Arı Meziyet
Published: April 2018

Yüksek Öğrenim kurumlarında bilimsel araştırmalar ile alana katkıda bulunan kişilere akademisyen denir. Akademisyenliğe giden ilk yol ilgi duyulan alanda yüksek lisansa başlamaktır. Daha sonra yine ilgi duyulan alanda ve iyi olduğu düşünülen bir üniversitede doktora programına kayıt yaptırılır. Danışman ile akademisyen adayı arasında uyum sağlanmalıdır. Problemler oluştuğunda,   yeni çözüm yolları bulunmalıdır   Doktora eğitiminden sonra akademisyen olma ya hak kazanılır. Akademisyen, alandaki bilgisini arttırmak için, yurtdışındaki literatür hakkında bilgi sahibi olmalıdır. Bu yüzden yabancı dil hâkimiyeti çok önemlidir. İyi bir akademisyen öğrencileriyle ve iş arkadaşlarıyla iyi sosyal ilişkiler geliştirir. Ülke içinde ve dışında yapılan kongrelere katılır ve alanda sosyal çevresini genişletir Ayrıca yayın sayısını artırmaktan çok kaliteli yayın çıkarmak ve alana katkıda bulunmak önemlidir.
La autopublicación en las bibliotecas: revisión sistemática de la literatura
Authors: Mangas-Vega Almudena , Merchán Sánchez-Jara Javier , Ramos Alonso Alberto
Published: April 2018

La autopublicación no es un fenómeno que tenga su nacimiento en época reciente, pero ha encontrado en lo digital un catalizador para ganar un enorme crecimiento en los últimos años. El trabajo estudia, a través de una revisión sistemática de literatura (en inglés, SLR), si este fenómeno ha penetrado en la comunidad bibliotecaria y de qué modo lo ha hecho. Los resultados muestran un tema que ha tomado gran relevancia, aunque con una marcada tendencia geográfica de carácter anglosajón. La autopublicación aparece como elemento de la colección ofrecida y como servicio a los usuarios, y en todos los casos se habla de experiencias positivas. El resto del mundo no anglosajón se muestra conservador en este tema, pero tiene ante sí una nueva línea de investigación y el bagaje de las experiencias de estos trabajos para satisfacer de la mejor manera posible esta nueva necesidad de sus usuarios.