bluuebunny/crossref_metadata_2025 huggingface dataset:
The Sustainability of Plastic Nets in Agriculture
Authors: Maraveas Chrysanthos
Published: May 2020

This review article contributes new knowledge relating to the sustainability of antihail, anti-insect, and windbreak plastic nets in agriculture. Based on the review, biobased plastic nets made from polyamino acids, polysaccharide derivatives (DS), polyhydroxybutyrate (PHB), polycaprolactone (PCL), polyhydroxylalkanoate (PHA), and polylactic acid (PLA) are shown to be highly biodegradable compared to conventional plastics such as high-density polyethylene (HDPE), polyethylene (PE), and polyvinyl chloride. The biodegradability of these materials is due to the use of natural precursors. However, nonbiodegradable plastics are the materials of choice in agricultural applications for the following reasons. Global commercial production of biobased plastics is low (~1%) due to the absence of facile and scalable production methods. Even though biobased materials are ecologically benign, they are limited in agricultural settings, given the low tensile strength and disruption of the activities of natural insect predators such as spiders. The enhancement of the material properties of biobased plastics involves a trade-off with sustainability. Chemical additives such as heavy metals and volatile compounds enhance the mechanical properties of biobased plastics but limit their sustainability. The current constraints on the production of biobased plastic nets can be resolved through electrospinning techniques that facilitate the development of plastic nets with controllable composition, porosity, and surface areas.
Research on the Policy Evolution of China’s New Energy Vehicles Industry
Authors: Zhou Na , Wu Qiaosheng , Hu Xiangping
Published: May 2020

China has formulated a series of industrial policies dedicated to the sustainable development of new energy vehicles (NEVs). Researching China’s NEVs industry policy system, particularly its staged evolution characteristics and internal logic, is essential for future optimization of NEVs supporting policy system. In this paper, we use the co-word analysis method and social network analysis method to investigate the policy evaluation of China’s NEVs industry. In total, 154 documents issued by the Chinese central government from 1991 to 2019 are chosen to describe the policy characteristics in four dimensions: policy themes, objects, key process along industry chain, and related measures. We explore policy evolution according to high-frequency words clustering. Results analyzing the policy development history showed that Chinese NEVs industry policy system has incurred the following stages: starting, initial formation, rapid expansion, and now strategic deepening. During the policy evolution in China, policy themes have emphasized the role of technology in NEV development. The industry process involved in policies has covered NEVs production, after-sales service, infrastructure, and battery management. Based on this analysis, we put forward relevant suggestions for improving China’s NEVs industry policy.
How Much Does Extrinsic Motivation or Intrinsic Motivation Affect Job Engagement or Turnover Intention? A Comparison Study in China
Authors: Miao Siyuan , Rhee Jaehoon , Jun In
Published: May 2020

In recent years, the employee turnover rate for China’s youth labor market has been increasing, thus sparking many social issues. By incorporating social cognitive career theory, cognitive evaluation theory and a job demands-resources model, this study aims to compare levels of employee job engagement and examine the roles of motivation in enhancing job engagement and lowering turnover intention. Further, we try to reveal the moderating effects of feedback and self-efficacy in these processes. The research was divided into two stages. In December 2017, the survey was distributed to new employees in China with a total of 409 samples. A second survey was then distributed to the same respondents one year later. The data collection for stage 2 was completed in February 2019 with a sample size of 245. The empirical results showed that only self-efficacy moderated intrinsic motivation for job engagement. Both feedback and self-efficacy negatively moderated the influence of extrinsic motivation and positively moderated the influence of intrinsic motivation on turnover intention. The findings suggest that the key to improve employee engagement relies on maintaining their intrinsic motivation. In conclusion, implications for retaining talented young employees and suggestions for future research are discussed.
Development and Performance Analysis of Soil Flow Protector to Reduce Soft Soil Settlement Caused by Cavity Formation
Authors: Yoo Jaewon , Son Suwon , Kim Sangtae
Published: May 2020

Settlement of a relatively small magnitude occurs in box structures supported by pile foundations. However, if cavities are generated under the box structure, ground settlement can be accelerated by surrounding soil entering the cavities. In order for the structure to maintain stability for a long period of time, sustainable development to maintain the stability of the building must be continued. Preventing rapid ground settlement can lead to long-term structural stability and prevent the occurrence of life-threatening damage, thereby helping to maintain and build a sustainable urban infrastructure. Thus, in this study, a soil flow protector (SFP) that can be easily installed on the sides of the structure was developed to mitigate the aforementioned problem. Field tests and numerical analysis were performed to investigate the effect of SFP installation on structural stability and settlement reduction. After performing field experiments, it was found that SFP installation could reduce ground settlement and ground horizontal displacement. Moreover, for a 79.9-mm settlement, the safety factor was 1.315, which remained stable even when the settlement reached 345 mm. Hence, the developed SFP can be used to reduce soft ground settlement affecting box structures supported by pile foundations.
Impact of Development Zone Construction on Labor Share in China
Authors: Liu Ziyu , Yang Yanlin
Published: May 2020

The decline in the share of labor income is associated with rising income inequality, which raises a series of economic and social problems. These problems seriously threaten the sustainability of economic development. To maintain sustainable economic development, China’s government has invested hundreds of billions of dollars to build economic development zones by attracting high-tech enterprises into the zones. In our paper, we aim to analyze whether the construction of economic development zones can effectively increase the share of labor income. We use PSM-DID (Propensity Score Matching Difference-in-Difference) to evaluate the impact of establishing economic development zones in China on the labor income share of enterprises in economic development zones in 2006. We found that the establishment and construction of economic development zones increased the share of labor income through the “agglomeration effect” and “policy effect”. Estimation of the level of heterogeneity among economic development zones shows that, compared with provincial economic development zones, the construction of national economic development zones has a greater effect on increasing the labor income share of enterprises in those zones. Economic development zones in the eastern, central, and western regions should also increase their share of labor income areas.
Agri-Food Markets in Qatar: Drivers, Trends, and Policy Responses
Authors: Ben Hassen Tarek , El Bilali Hamid , Al-Maadeed Mohammed
Published: May 2020

Agri-food markets are vital in achieving food security, especially for resource-poor, food-importing countries such as Qatar. The paper provides an overview of the evolution of agri-food markets in Qatar and explores the implications of past and ongoing changes in terms of food security and food system sustainability. In particular, the review analyzes drivers of changes, trends, and challenges as well as policy responses to address the emerging challenges while ensuring the country’s food security. It draws upon a systematic review of scholarly literature indexed in the Web of Science as well as data from gray literature (e.g., reports) and databases (e.g., FAOSTAT). Different drivers (e.g., population growth with huge expatriate inflow, urbanization, income increase) affected the functioning of agri-food markets as well as the structure of the food chain (viz. production, processing, distribution, consumption) in Qatar. In addition to drivers, the food-related trends were also shaped by numerous environmental (e.g., land/water scarcity), economic, health, and trade challenges. To ensure long-term food and nutrition security for its population, Qatar implemented various policies and strategies (e.g., National Food Security Strategy 2018–2023). In this context, agri-food markets, as functional links between production and consumption, can foster transition towards sustainable food consumption and production patterns in Qatar.
Practical Applications of Systems Thinking to Business
Authors: Monat Jamie , Amissah Matthew , Gannon Thomas
Published: May 2020

In this paper we summarize the research on Systems Thinking for business management and explore several examples of business failures due to a lack of application of Systems Thinking, with an ultimate goal of offering a Systems Thinking approach that is useful to all levels of management. Although there is significant literature aimed at facilitating Systems Thinking in organizational management, there remains a lack of adoption of Systems Thinking in mainstream business practice. This is perhaps because the literature does not reduce high-level Systems Thinking principles to hands-on, practical protocols that are accessible for typical managers, thus limiting the working application of Systems Thinking concepts to researchers and consultants who specialize in the field. The goal of this work is to not only elaborate on the high-level ideals of System Thinking, but also to articulate a more precise and practical hands-on approach that is useful to all levels of business managers.
Codon Usage and Phenotypic Divergences of SARS-CoV-2 Genes
Authors: Dilucca Maddalena , Forcelloni Sergio , Georgakilas Alexandros G. , Giansanti Andrea , Pavlopoulou Athanasia
Published: May 2020

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which first occurred in Wuhan (China) in December of 2019, causes a severe acute respiratory illness with a high mortality rate, and has spread around the world. To gain an understanding of the evolution of the newly emerging SARS-CoV-2, we herein analyzed the codon usage pattern of SARS-CoV-2. For this purpose, we compared the codon usage of SARS-CoV-2 with that of other viruses belonging to the subfamily of Orthocoronavirinae. We found that SARS-CoV-2 has a high AU content that strongly influences its codon usage, which appears to be better adapted to the human host. We also studied the evolutionary pressures that influence the codon usage of five conserved coronavirus genes encoding the viral replicase, spike, envelope, membrane and nucleocapsid proteins. We found different patterns of both mutational bias and natural selection that affect the codon usage of these genes. Moreover, we show here that the two integral membrane proteins (matrix and envelope) tend to evolve slowly by accumulating nucleotide mutations on their corresponding genes. Conversely, genes encoding nucleocapsid (N), viral replicase and spike proteins (S), although they are regarded as are important targets for the development of vaccines and antiviral drugs, tend to evolve faster in comparison to the two genes mentioned above. Overall, our results suggest that the higher divergence observed for the latter three genes could represent a significant barrier in the development of antiviral therapeutics against SARS-CoV-2.
Virome of a Feline Outbreak of Diarrhea and Vomiting Includes Bocaviruses and a Novel Chapparvovirus
Authors: Li Yanpeng , Gordon Emilia , Idle Amanda , Altan Eda , Seguin M. Alexis , Estrada Marko , Deng Xutao , Delwart Eric
Published: May 2020

An unexplained outbreak of feline diarrhea and vomiting, negative for common enteric viral and bacterial pathogens, was subjected to viral metagenomics and PCR. We characterized from fecal samples the genome of a novel chapparvovirus we named fechavirus that was shed by 8/17 affected cats and identified three different feline bocaviruses shed by 9/17 cats. Also detected were nucleic acids from attenuated vaccine viruses, members of the normal feline virome, viruses found in only one or two cases, and viruses likely derived from ingested food products. Epidemiological investigation of disease signs, time of onset, and transfers of affected cats between three facilities support a possible role for this new chapparvovirus in a highly contagious feline diarrhea and vomiting disease.
Merkel Cell Polyomavirus (MCPyV) in the Context of Immunosuppression: Genetic Analysis of Noncoding Control Region (NCCR) Variability among a HIV-1-Positive Population
Authors: Prezioso Carla , Obregon Francisco , Ambroselli Donatella , Petrolo Sara , Checconi Paola , Rodio Donatella Maria , Coppola Luigi , Nardi Angelo , de Vito Corrado , Sarmati Loredana , Andreoni Massimo , Palamara Anna Teresa , Ciotti Marco , Pietropaolo Valeria
Published: May 2020

Background: Since limited data are available about the prevalence of Merkel cell polyomavirus (MCPyV) and the genetic variability of its noncoding control region (NCCR) in the context of immunosuppression, this study aimed to investigate the distribution of MCPyV in anatomical sites other than the skin and the behavior of NCCR among an HIV-1-positive population. Methods: Urine, plasma, and rectal swabs specimens from a cohort of 66 HIV-1-positive patients were collected and subjected to quantitative real-time polymerase chain reaction (qPCR) for MCPyV DNA detection. MCPyV-positive samples were amplified by nested PCR targeting the NCCR, and NCCRs alignment was carried out to evaluate the occurrence of mutations and to identify putative binding sites for cellular factors. Results: MCPyV DNA was detected in 10/66 urine, in 7/66 plasma, and in 23/66 rectal samples, with a median value of 5 × 102 copies/mL, 1.5 × 102 copies/mL, and 2.3 × 103 copies/mL, respectively. NCCR sequence analysis revealed a high degree of homology with the MCC350 reference strain in urine, whereas transitions, transversions, and single or double deletions were observed in plasma and rectal swabs. In these latter samples, representative GTT and GTTGA insertions were also observed. Search for putative binding sites of cellular transcription factors showed that in several strains, deletions, insertions, or single base substitutions altered the NCCR canonical configuration. Conclusions: Sequencing analysis revealed the presence of numerous mutations in the NCCR, including insertions and deletions. Whether these mutations may have an impact on the pathogenic features of the virus remains to be determined. qPCR measured on average a low viral load in the specimens analyzed, with the exception of those with the GTTGA insertion.
A Replication-Defective Influenza Virus Vaccine Confers Complete Protection against H7N9 Viral Infection in Mice
Authors: Landreth Shelby , Lu Yao , Pandey Kannupriya , Zhou Yan
Published: May 2020

Avian influenza H7N9 viruses continue to pose a great threat to public health, which is evident by their high case-fatality rates. Although H7N9 was first isolated in humans in China in 2013, to date, there is no commercial vaccine available against this particular strain. Our previous studies developed a replication-defective influenza virus through mutation of the hemagglutinin (HA) cleavage site from a trypsin-sensitive to an elastase-sensitive motif. In this study, we report the development of a reassortant mutant influenza virus derived from the human isolate A/British Columbia/01/2015 (H7N9) [BC15 (H7N9)], which is the QVT virus. The HA gene of this virus possesses three mutations at the cleavage site, Lys-Gly-Arg were mutated to Gln-Thr-Val at amino acid (aa) positions 337, 338, and 339, respectively. We report this virus to rely on elastase in vitro, possess unaltered replication abilities when elastase was provided compared to the wild type virus in vitro, and to be non-virulent and replication-defective in mice. In addition, we report this virus to induce significant levels of antibodies and IFN-γ and IL-5 secreting cells, and to protect mice against a lethal challenge of the BC15 (H7N9) virus. This protection is demonstrated through the lack of body weight loss, 100% survival rate, and the prevention of BC15 (H7N9) viral replication as well as the reduction of proinflammatory cytokines induced in the mouse lung associated with the influenza disease. Therefore, these results provide strong evidence for the use of this reassortant mutant H7N9 virus as a replication-defective virus vaccine candidate against H7N9 viruses.
HIV gp120 Induces the Release of Proinflammatory, Angiogenic, and Lymphangiogenic Factors from Human Lung Mast Cells
Authors: Marone Giancarlo , Rossi Francesca Wanda , Pecoraro Antonio , Pucino Valentina , Criscuolo Gjada , de Paulis Amato , Spadaro Giuseppe , Marone Gianni , Varricchi Gilda
Published: May 2020

Human lung mast cells (HLMCs) express the high-affinity receptor FcεRI for IgE and are involved in chronic pulmonary diseases occurring at high frequency among HIV-infected individuals. Immunoglobulin superantigens bind to the variable regions of either the heavy or light chain of immunoglobulins (Igs). Glycoprotein 120 (gp120) of HIV-1 is a typical immunoglobulin superantigen interacting with the heavy chain, variable 3 (VH3) region of human Igs. The present study investigated whether immunoglobulin superantigen gp120 caused the release of different classes of proinflammatory and immunoregulatory mediators from HLMCs. The results show that gp120 from different clades induced the rapid (30 min) release of preformed mediators (histamine and tryptase) from HLMCs. gp120 also caused the de novo synthesis of cysteinyl leukotriene C4 (LTC4) and prostaglandin D2 (PGD2) from HLMCs. Incubation (6 h) of HLMC with gp120 induced the release of angiogenic (VEGF-A) and lymphangiogenic (VEGF-C) factors from HLMCs. The activating property of gp120 was mediated through the interaction with IgE VH3+ bound to FcεRI. Our data indicate that HIV gp120 is a viral superantigen, which induces the release of different proinflammatory, angiogenic, and lymphangiogenic factors from HLMCs. These observations could contribute to understanding, at least in part, the pathophysiology of chronic pulmonary diseases in HIV-infected individuals.
Ritualinis mandagumas (ta’ârof) šiuolaikinio Irano visuomenėje ir tarpkultūrinėje komunikacijoje: Teherano šiaurinės dalies atvejis
Authors: Sabaliauskienė Dalia
Published: May 2020

This paper examines the concept and practices of the Iranian ritual courtesy ta’ârof in northern Tehran, based on field-study findings, and analyses its expression in intercultural communication. It examines how contemporary Iranians perceive ta’ârof, what practices of ritual courtesy are commonly found, and whether configurations of the Iranian code of courtesy remain stable in the changing cultural environment. The study employs the theory of face maintenance and data from Iranian face and diaspora research. It shows emic perceptions of ta’ârof, and reveals its practices in Tehran, alongside tendencies of expression among Iranians living in Lithuania. Key words: ta’ârof, ritual courtesy, capital-city culture, intercultural communication, contemporary Iran.
FEATURES OF MODELING THE DRIVE UNIT OF THE MIXER WITH BIDIRECTIONAL ROTATIONAL IMPACT ON THE MATERIAL
Authors: Yudin K. , Pogosbekov A.
Published: May 2020

Periodical mixers are considered. The expediency of developing a new type of mixer is presented. Features of the material movement in the mixer allow to speak about the presence of elements of a gyroscopic effect. The mixing chamber is rotated by means of belt, chain and conical transmission. The resulting complex spatial movement of material particles can be controlled by a frequency Converter and the selection of appropriate gears or using a belt drive. An algorithm for modeling the drive unit of a mixer with a bidirectional rotational effect on the material is presented. The features of the drive unit and its components are considered. The task is to build a model of deformation of the drive unit of the mixer. The finite element method (FEM) for the drive unit of the mixer is used. Machine experiments are performed that implement fatigue calculations of the drive unit with a study in the SolidWorks Simulation environment. The results of static analysis of the drive unit operation in determining the deformation, static analysis of the drive unit operation in determining the voltage with varying torque are obtained. A variant of static analysis is presented when using a belt drive instead of a gear drive. The practical implementation of the mixer drive unit in metal is shown. Conclusions on modeling are made.
HASTANE SU SİSTEMLERİNDE LEJYONELLA RİSK YÖNETİMİ VE KORUNMA
Authors: SOLMAZ Mehtap , SOLMAZ Tuğba
Published: May 2020

Legionella halk
sağlığı açısından önem taşıyan fırsatçı bir patojendir. Legionella cinsi bakterilerin doğal ekolojik
ortamı sudur ve doğal su ortamlarında
yıllarca canlı kalabilirler. Klora
yüksek oranda dirençli olan bu bakteriler, su dağıtım sistemlerine düşük
oranlarda geçerek uygun üreme ortamlarının oluşturulması halinde canlılıklarını
sürdürmeye ve çoğalmaya devam ederler. Bakteri bu özelliği nedeniyle klima sistemlerinde de rahatça
yaşayabilmekte ve bu sistemde oluşan aerosollerin ortamda bulunan insanlarca
solunması sonucu akciğere yerleşerek hastalığa neden olmaktadır.

Hastane
su sistemlerinin Legionella türü
bakteriler ile kolonizasyonu özellikle bağışıklık sistemi baskılanmış, kronik
hastalığı bulunan, cerrahi girişime maruz kalmış kişilerde nozokomiyal
lejyonelloza neden olmaktadır.
Hastalığın önlenmesi, sistematik bir program yürütülmesi­ni ve hastanede risk
değerlendirilmesi ile birlikte aktif olgu sürveyansı yapılmasını gerektirmektedir.
Su sisteminde Legionella varlığının aranması hastanelerde risk değerlen­dirmesinin
bir bileşeni olarak kabul edilmelidir. Bu makalede, hastane kaynaklı Lejyoner
hastalığının önlenmesi ve kontrolünde, su sis­temlerinin yönetimi ve aktif olgu
sürveyansının önemi özetlenmiştir.
PERİODONTAL HASTALIK, ATEROSKLEROZ VE OKSİDATİF STRES İLİŞKİSİ: DERLEME
Authors: SARI Ayşegül , ERCİYAS Kamile , TANER İbrahim Levent
Published: May 2020

Peridontal hastalıklar dişin destek dokularında enflasyonla ve yıkımla karakterize enfeksiyöz hastalıklardır. Periodontal hastalığın ilerlemesinde, bakteriyel kolonizasyona karşı gelişen immünolojik reaksiyonlar önemli rol oynamaktadır. Periodontal hastalıklar ile kardiovasküler hastalıkların temel etkeni olan ateroskleroz arasındaki direk nedensel ilişki tam olarak belirlenememesine karşın, her iki hastalığı ilişkilendiren farklı patolojik mekanizmalar ve ortak risk faktörleri mevcuttur. Aterosklerotik plakların periodontal patojenlerle enfeksiyonu, periodontal enflamasyonun kronik sistemik enflamasyon yoluyla aterojenik etki oluşturması her iki hastalığın olası ilişkisini açıklayan olası mekanizmalardandır. Serbest radikaller ile koruyucu antioksidan sistem arasındaki dengenin bozulması sonucu meydana gelen oksidatif stresin, son yıllarda her iki hastalığın başlaması ve ilerlemesiyle ilişkili enflamatuar bir belirteç olduğu üzerinde durulmaktadır. Bu derlemede periodontal hastalık, ateroskleroz ve oksidatif stres arasındaki ilişkinin ele alınması amaçlanmıştır.
BİR ÜNİVERSİTEDE ÖĞRENİM GÖREN SAĞLIK YÜKSEKOKULU ÖĞRENCİLERİNİN OBEZİTE DURUMU İLE İNTERNET KULLANIMI ARASINDAKİ İLİŞKİNİN DEĞERLENDİRİLMESİ
Authors: KARASU Fatma , POLAT Filiz
Published: May 2020

Amaç: Günümüzde internetin kullanım alanlarının artması ve erişim imkanlarının kolaylaşması sonucunda insanların internette harcadıkları zaman da artmıştır. İnternetin kullanımı, insan hayatını kolaylaştırarak toplumsal gelişime katkı sağlasa da bilinçsiz kullanımı bazı sorun ve tehlikeleri de beraberinde getirmektedir. Bu çalışma, üniversite öğrencilerinin obezite durumları ile internet kullanımı arasındaki ilişkinin değerlendirilmesi amacıyla yapıldı. Yöntem: Araştırma Bitlis Eren Üniversitesi Sağlık Yüksekokulu Hemşirelik Bölümü, Beslenme ve Diyetetik Bölümü ve Sosyal Hizmetler Bölümünde okuyan 313 öğrenci ile yapıldı. Araştırmanın verileri kişisel bilgi formu ve Problemli İnternet Kullanım Ölçeği kullanılarak toplandı. Araştırmada elde edilen verilerin analizi için SPSS 22.0 istatistik paket programı kullanıldı. İstatistiksel hesaplamalar için sayı, frekans, yüzdelik, bağımsız gruplarda t, Anova, Korelasyon tesleri kullanıldı. Bulgular: Öğrencilerin PİK toplam puan ortalaması 126.9±25.3 olarak bulundu. Öğrencilerin BKI, cinsiyet, yaş, sınıf, bölüm, kendine ait bilgisayarın varlığı ve internete istediği zaman bağlana bilme durumlarına göre PİK toplam ve alt boyut puan ortalamaları karşılaştırılmasında gruplar arasındaki farkın istatistiksel açıdan önemli olmadığı saptandı (p>0.05). Sonuç: Öğrencilerin internet kulanım oranının yüksek olduğu ve obezite durumları ile internet kulanım arasında bir ilişki olmadığı saptanmıştır. Bu çalışmanın farklı örneklem gruplarında da yapılması önerilir.
3D-Conformal Radiation Therapy and IntensityModulated Radiation Therapy Techniques for Laryngeal Cancer Taking Parotid Glands as Organ at Risk
Authors: Ismael Dler K. , Hassan Fatiheea F.
Published: May 2020

Background: Three-dimensional conformal radiotherapy (3D-CRT) and intensity-modulated radiotherapy (IMRT) techniques are used for the treatment of patients with laryngeal cancer. Objective: This study aimed to investigate the effects of these 2 treatment techniques on the planning target volume (PTV) (laryngeal cancer), dose homogeneity, dose of organs at risk (OARs) (parotid glands), and conformity index. Methods: This study compared 2 treatment techniques and was conducted from October 2018 to April 2019 at the Zhianawa Cancer Center (ZCC), Sulaimaniyah, Iraq. Eight patients with laryngeal cancer were selected for this study. 3D-CRT and IMRT were used to produce the maximum dose of target volume coverage and minimum dose to the parotid glands. Elekta synergy with a photon beam of 6 MV was used for all measurements. Data analysis was performed using the available statistical package of SPSS 25. Results: The comparison of 3D-CRT with IMRT showed that the mean conformity index value for IMRT was more conformal than the 3D-CRT plan (0.956, 0.945, respectively), but the homogeneity index was better with 3D-CRT than with IMRT (0.175, 0.202, respectively). The mean dose for Rt. parotid glands was higher with IMRT than with 3D-CRT (232.71, 23.26, respectively), and in both plans the mean dose was less than 26 Gy (the standard tolerance value). While in the Lt. parotid gland the mean dose was higher with 3D-CRT than with IMRT (26.95, 23.71, respectively), the mean dose with 3D-CRT was greater than 26 Gy. The amount of PTV was significantly greater with the IMRT technique than with 3D-CRT (52.15±1.61, 51.09.4±0.74 Gy, respectively). Conclusion: This study further supports that IMRT has improved the long-term quality of life of patients with laryngeal cancer.
Structural development of Maglevandsfald: a key to understanding the glaciotectonic architecture of Møns Klint, SE Denmark
Authors: Schack Pedersen Stig A. , Gravesen Peter
Published: May 2020

The Møns Klint Glaciotectonic Complex (Fig. 1) exposed in the N–S-trending chalk cliff on the east coast of the island of Møn in south-east Denmark is one of the most famous glaciotectonic geosites in the world. People of all nationalities are attracted to the site, which has more than 300 000 visitors per year. Many of them may not realise the uniqueness of the glaciotectonic framework, and are probably more fascinated by the spectacular view of the white cliff and chalk peaks separated by the deep green gorges. However, without the glaciotectonic deformation the cliffs would never have formed. Instead the Cretaceous chalk would still have been resting horizontally below the seabed, covered by glaciofluvial sand, glaciolacustrine clay and clayey till.
Fracture valleys in central Jylland – a neotectonic feature
Authors: Roll Jakobsen Peter , Chack Pedersen Stig A. S
Published: May 2020

Geomorphological indications of tectonic activity in the Danish glacial landscape were pointed out already by Milthers (1916, 1948). He described a conspicuous system of N–S-trending, narrow valleys in central Jylland and interpreted them as fault-generated features (fracture valleys). The valleys occur in the area between Ulstrup and Hammel and in a smaller area near Skjød (Fig. 1). The most significant valley system is found near Hvorslev, and it is here referred to as the Hvorslev lineaments (Fig. 1).
Geophysical methods and data administration in Danish groundwater mapping
Authors: Møller Ingelise , Søndergaard Verner H. , Jørgensen Flemming
Published: May 2020

Groundwater mapping in Denmark has high priority. It was initiated in the 1990s when the pressure on groundwater resources increased due to urban development and pollution from industrial and agricultural sources. In some areas, the groundwater mapping included survey drillings, modelling based on existing knowledge and geophysical mapping with newly developed methods that made area coverage on a large scale possible. The groundwater mapping that included development of new geophysical methods showed promising results, and led to an ambitious plan to significantly intensify the hydrogeological mapping in order to improve the protection of the Danish groundwater resources. In 1999 the Danish Government initiated the National Groundwater Mapping Programme with the objective to obtain a detailed description of the aquifers with respect to localisation, extension, distribution and interconnection as well as their vulnerability to pollution (Thomsen et al. 2004). This mapping programme covers around 40% of the area of Denmark designated as particularly valuable water abstraction areas. Water consumers finance the mapping programme by paying 0.04 € per cubic metre of consumed water. At the end of the programme in 2015, the total cost is estimated to be about 250 000 000 € with a significant part spent on geophysical mapping.
Diamonds and lithospheric mantle properties in the Neoproterozoic igneous province of southern West Greenland
Authors: Steenfelt Agnete , Monrad Jensen Sven , Nielsen Troels F.D. , Sand Karina K. , Secher Karsten
Published: May 2020

The search for diamonds in Greenland has resulted in the discovery of many new dykes of kimberlite and ultramafic lamprophyre and, most importantly, in the acquisition of a wealth of chemical data on rocks and minerals representing mantle material entrained by the dyke magmas. The discovery of a diamondiferous sheet at Garnet Lake in southern West Greenland stimulated the research (Hutchison 2005). Over the past five to ten years, the Geological Survey of Denmark and Greenland together with the Bureau of Minerals and Petroleum in Greenland and international research groups have acquired, processed and interpreted data with the objective of identifying diamond-favourable regimes within the lithospheric mantle below the Archaean craton in West Greenland. Here we present mineral data from drift samples that allow us to identify where mantle conditions in terms of lithology and depth may be favourable for the occurrence of diamonds.
Post-rift landscape development of north-east Brazil
Authors: Bonow Johan M. , Japsen Peter , Green Paul F. , Cobbold Peter R. , Pedreira Augusto J. , Lilletveit Ragnhild , Chiossi Dario
Published: May 2020

The evolution of the landscape of north-east Brazil in relation to the burial and exhumation history of both onshore and offshore areas is the focus of a research project carried out for StatoilHydrodo Brasil and Petrobras from 2007 to 2009 by the Geological Survey of Denmark and Greenland in collaboration with Geotrack International. In hydrocarbon exploration it is important to understand the regional tectonic framework and thus also to consider the volumes of rocks that may have been present and then removed during the geological past. For example, the timing of hydrocarbon generation and changes in migration routes can be assessed when the timing and magnitude of uplift and erosion is known. Studies in West Greenland have demonstrated the usefulness of large-scale, low-relief, high-level landscapes as markers of uplift events, and in particular the strength of combining the denudation history from landscape analysis with the cooling history from apatite fission-track analysis (AFTA) data and the stratigraphic record (Bonow et al. 2006, 2007; Japsen et al. 2006, 2009). In the study area, there are two plateaux with elevations up to c. 1300 m above sea level (a.s.l.). The plateaux are currently being dissected by deeply incised fluvial valleys, and escarpments separate the two plateaux. The lowlands cut across Early Cretaceous rift systems along the Atlantic margin, including the intracontinental Recôncavo–Tucano–Jatobá (RTJ) Rift and also the Camamu Basin, of which the western margin is exposed onshore (Fig. 1). The RTJ Rift is a mature hydrocarbon province, whereas the deep-water parts of the Camamu Basin are the target of frontier exploration (e.g. Magnavita et al. 1994; Davison 1999; Cobbold et al. 2008). The post-rift sequence in the RTJ Rift and the inshore Camamu Basin is thin or absent. However, it has been estimated that up to 2000 m of sedimentary cover once was present, but has now been removed (Magnavita et al. 1994).
On a General Class of Multiple Eulerian Integrals with Multivariable Aleph-Functions
Authors: Ayant Frederic
Published: May 2020

Recently, Raina and Srivastava [5] and Srivastava and Hussain [12] have provided closed-form expressions for a number of a Eulerian integral involving multivariable H-functions. Motivated by these recent works, we aim at evaluating a general class of multiple Eulerians integral involving the product of two multivariable Aleph-functions, a class of multivariable polynomials and the general sequence of functions. These integrals will serve as a capital formula from which one can deduce numerous integrals.
An Unified Study of Some Multiple Integrals with Multivariable Gimel-Function
Authors: Ayant Frederic
Published: May 2020

In this paper, we first evaluate a unified and general finite multiple integral whose integrand involves the product of the functions and the multivariable Gimel-function occurring in the integrand involve the product off actors of the form while that of occurring herein involves a finite series of suchfinite series of such factors. On account of the most general nature of the functions occurring in the integrand of our main integral, a large number of new and known integrals can easily be obtained from ot merely by specializing the functions and parameters involved therein. At the end of this study, we illustrate a new integral whose integrand involvesa product of the Jacobi polynomial, the Appell’s function and the Bessel function
MENSAJE DEL NUEVO COMITÉ DIRECTIVO NACIONAL DE LA SOMEFI
Authors: Lobato-Ortiz Ricardo
Published: May 2020

Estimados Socios: a nombre del Comité Directivo Nacional 2017-2018 (CDN 2017-2018), me es muy grato enviar un cordial saludo a los socios de la SOMEFI, así como a los suscriptores y lectores de la Revista Fitotecnia Mexicana, órgano oficial de difusión científica de nuestra sociedad, y también aprovecho la oportunidad para desearles éxitos en sus actividades profesionales y personales.
EXPERIMENTAL RESEARCH ON THE KNIFE BLADES USED TO CUTTING AND SHREDDING FIBROUS FODDER
Authors: Caba I.L. , Laza E.A. , Constantinescu M. , Radu O.D. , Boiu-Sicuia O.A. , Popescu C.
Published: May 2020

In the process of harvesting fibrous fodder an important and negligible requirement is the appropriate shredding of the fiber feed directly or indirectly into the composition of animal feed, whether it be fresh fodder, high moisture or fodder feed or even dried. The degree of comminution of feeding stuffs decisively influences the speed of assimilation by animals of the administered feed, implicitly their weight gain, the profitability of the respective cattle farm and not only. In the paper are presented the possibilities of technically obtaining a finest shredding of fibrous fodder, especially by using multirow knives in the feed channel of self-loading hay trailer. However, these technical solutions also have certain disadvantages in the daily operation of such machines.
Participação em um Grupo de Escalada como uma Prática de Lazer
Authors: Vargas Gabriel Rocha , Silva Dirceu Santos , Amaral Silvia Cristina Franco
Published: May 2020

Analisamos as configurações da participação dos sujeitos em um grupo de escalada, focando a prática engajada e a construção de sentidos particulares a esse meio. Tal prática torna-se um potencial vetor de um lazer que pode ser caracterizado como significativo. Assim, o objetivo é investigar as práticas de escalada exercidas no âmbito do Grupo de Escalada Esportiva da Unicamp (GEEU). Foi empreendida uma observação participante ao longo de dezoito meses em campo. Para auxiliar na compreensão das múltiplas facetas do grupo de escalada, buscamos um modelo teórico que traz fundamentos que dialogam extensamente com o visto e o não visto em campo: a Serious Leisure Perspective de Robert Stebbins. Utilizamos as categorias definidas por esse modelo para discutir e contextualizar as práticas do grupo. A se constitui como uma cultura corporal com suas próprias atitudes, crenças, valores, práticas e expectativas.
Caracterização da Prática Esportiva/Recreativa do Skate em São Paulo, Paraná e Rio Grande do Sul
Authors: Noda Luana Mari , Pimentel Giuliano Gomes de Assis
Published: May 2020

Caracterizamos a prática do skate a partir do entendimento de seus praticantes. A amostra foi constituída por 184 skatistas entre 16 e 60 anos de idade, em pistas de Maringá-PR, Porto Alegre- RS e São Bernardo do Campo- SP, em pesquisa tipo survey. Dentre os aspectos que caracterizam o skate, 70% da amostra tomam o skate como opção de lazer, uma vez que a diversão (79%) é o motivo à prática mais citado. Embora só 16% consentiram que fazem parte de alguma “tribo” de praticantes, 33% afirmaram já ter sofrido algum tipo de preconceito. À análise percebemos que não há muitos consensos sedimentados entre os skatistas, mesmo dentro de cada modalidade. A caracterização dos sujeitos e da prática varia a partir de traços ora regionais ora geracionais. Em conclusão, os resultados permitem questionar afirmações mitificadas sobre essa atividade de aventura.
Cicloviagem, Lazer e Educação Ambiental
Authors: Gonçalves Junior Luiz , Carmo Clayton da Silva , Corrêa Denise Aparecida
Published: May 2020

O objetivo desse estudo foi identificar e analisar os processos educativos vivenciados por um grupo de cicloviajantes participantes do “Projeto de Educação Ambiental e Lazer” (PEDAL) durante uma cicloviagem na região da Serra da Canastra. A pesquisa envolveu notas de campo, as quais foram submetidas à análise qualitativa inspirada na fenomenologia. A análise dos dados permitiu identificar processos educativos relacionados à aprendizagem técnica, a empatia e a experiência sensível ao ambiente. Consideramos que a experiência promovida pela utilização da bicicleta pode favorecer fruição crítica do lazer e da educação ambiental.
Filhos da Música
Authors: Mion Luciana , Pacheco Reinaldo
Published: May 2020

A produção e consumo musicais são compreendidos como resultantes de aspectos histórico-sociais e sobre os quais pesam fatores de aptidão e facilidade cognitiva tanto na criação quanto na fruição. Também são reflexo de questões interiores e da identidade do compositor, constituído e constituinte do meio social. A música é uma expressão cultural submetida às forças de mercado e sua dinâmica é de categorização vaga que vai do entretenimento à arte. O artigo aborda o processo do consumo à criação, influenciado pelos hábitos de consumo musical no tempo livre e seus fatores sociais bem como as forças dinâmicas de mercado e de propensão musical. Para tanto, foram apresentados dados de entrevistas com alguns músicos - compositores, quer sejam profissionais ou amadores, pois detecta-se  nas entrevistas que a relação entre o trabalho e o tempo livre se mescla para esse público. Como resultado, vimos que o fenômeno da pós-modernidade permeia tal processo e que não há fórmulas para a produção, apenas a verificação de algumas determinantes que se mesclam e são interpretadas e reinterpretadas pelo receptor ativo (compositor), resultando na variação artística.
Praças Públicas e Possibilidades Lúdicas
Authors: Melo Marcelo Paula de , Jesus Marcelo Siqueira de , Bezerra Diogo Van Bavel
Published: May 2020

O objetivo deste trabalho foi analisar as condições das instalações de lazer em duas (2) praças públicas do bairro Copacabana, município do Rio de janeiro. A partir disso, podemos inferir questões acerca da relação entre conservação dos espaços estatais e as possibilidades de lazer para o conjunto da população. Esta pesquisa utilizou uma analise crítica com observação participante e entrevistas com usuários e funcionários de limpeza, segurança e conservação que atuam nas praças. Concluímos haver sérios problemas de conversação em ambas as praças, que implicam numa precarização e restrição das possibilidades de utilização desses equipamentos públicos.
Sistem Informasi Koordinasi Kelengkapan Dewan pada Dewan Perwakilan Perwakilan Rakyat Daerah Provinsi Kepulauan Riau
Authors: Noviana Nina
Published: May 2020

Coordination report complete information system of the council is one of the supporting tools in reporting the council's activities to the Riau Islands Province DPRD. Every matter concerning official organizational activities is always realized in the form of a coordinating report on the completeness of the board. The Office of the Regional Representative Council (DPRD) of the Riau Islands Province also faces obstacles in the coordinating report on the completeness of the board, where the coordinating report on the completeness of the council requires physical evidence and is recorded in a structured manner. This research builds a management information system for coordinating reports on the completeness of the DPRD Kepri council that can be accessed through an internet connection and is built using a web-based computer programming language. This research was conducted in 2016, the research design used was applied research. From the results of the achievement of research conducted that the complete co-ordination information system of the board can be used as an alternative to the management of archiving letter data involving many types and functions of a letter. Ease of access and operations that can be used on various devices is a priority and functionality of an application by using a web-based application. The application of information technology and the demands of work efficiency in agencies requires the ideas and creativity of users at a government agency to innovate in handling performance issues, especially the management and management of letters. It is expected that this application will become the basis for further development in various government agencies to create an e-government application towards good governance.Keywords:Information System, Coordination of Completeness of the Board, DPRD Riau Islands
Perancangan Sistem Informasi Pengarsipan Dokumen pada Mahkamah Syar’iyah Kota Banda Aceh
Authors: Rahmadi Khairul
Published: May 2020

At the Syar'iyah Court of Banda Aceh City, the archiving information system within the agency could be said to be inefficient because there were still many conventional filing information systems applied, namely storing in filing cabinets, and recording to books so that accuracy could still be said to be unfavorable. When viewed in terms of space, it requires an inventory of places for equipment such as filing cabinets, maps, shelves, and others. While in terms of time, the search for the arrangement of documents that are not neat. In terms of cost, the need for care and maintenance of archive storage. The formulation of the problems in this study can be formulated; Designing the Document Filing Information System at the Banda Aceh Syar'iyah Court, Is the Banda Aceh City Syar'iyah Court Filing Information System the information used will be faster and more accurate, and How to present the Syar'iyah Court Document Filing Information System. The method used in designing the NET Document Filing Information System at the Banda Aceh Syar'iyah Court is to use the waterfall method or the waterfall method. Data collection techniques using research methods by observation, interview, and literature study. The tools used are Microsoft Visual Basic .NET as an application in interface design and Microsoft Office Access as a DBMS. The test results of this application are the systems that are built already meet the needs, the input data process has met the needs and the resulting report has met the needs.Keywords:Information Systems, Filing, Documents, Visual Basic.NET
Enhancement in DC Electrical Resistivity and Dielectric Behaviour of Ti4+ Doped CoFe2O4 NP’s for Nanoelectronics Application
Authors:   Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, (MS) India., Jadhav* K. M. , Patil B. A. ,   Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, (MS) India., Kounsalye Jitendra S. ,   Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, (MS) India., Kokate R. D. ,   Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, (MS) India.
Published: May 2020

Inverse spinel structured cobalt ferrite is one of the capable nominee for information storage and also in nanoelectronics devices. The present paper reports the rietveld refined structural, elastic, electrical and dielectric behaviour of titanium doped CoFe2O4 NP’s. The synthesis of Co1+xTixFe2-2xO4 (where, 0.0  x  0.5) nanoparticles was performed using self generated combustion technique. The prepared NP’s were characterized by X-ray diffraction technique (XRD) and Fourier transform infrared spectroscopy (FT-IR) technique to analyze the structural and elastic properties. The analysis of XRD patterns confirms the formation of single phase spinel cubic structure of all the prepared samples. The diffractograms obtained at room temperature were used for Rietveld refinement to determine the lattice constant, oxygen position, average crystallite size etc. parameters. The elastic modules were investigated through vibrational bands in FTIR spectra. The band positions in FT-IR spectra confirmed the octahedral [B] and tetrahedral (A) stretching which evident the ferrite skeleton. The plot of DC electrical resitivity with respect to temperature shows the semiconducting behaviour of the nanoparticles. The activation energy determined through resistivity plots, show decreasing nature with incrementing Ti4+ doping in cobalt ferrite. The dielectric parameters decreased exponentially with increasing frequency and with Ti doping.