bluuebunny/crossref_metadata_2025 huggingface dataset:
THE IMPLEMENTATION OF COOPERATIVE LEARNING TYPE THINK PAIR SHARE MODEL TO IMPROVE READING COMPREHENSION SKILL IN DISRUPTION ERA
Authors: Latief Maullana , Sriyanto Muhammad Ismail , Daryanto Joko
Published: May 2019

The purpose of this research was to improve the skill of reading comprehension by applied Think Pair Share (TPS) model in disruption era for fifth grade students in SDN Purwotomo No. 97 Surakarta on academic year of 2017/2018. The form of this research was a Classroom Action Research which conducted in two cycles. Each cycle consisted of four stages i.e. planning, action, observation, and reflection. The subjects of this research included teacher and 23 fifth grade students in SDN Purwotomo No. 97 Surakarta. The data collected by observation, interview, test, and documentation techniques. The data validity test were using content validity, triangulation of resource, and triangulation of technique. The result of this research shows the improvement of skill of reading comprehension values from pre-action, cycle I until cycle II.
THE IMPLEMENTATION OF COOPERATIVE LEARNING MODEL OF CONCEPT SENTENCE TO IMPROVE PANTUN SKILL WRITING
Authors: Handayani Nur Esti , Markamah Endang Sri , Sriyanto Muhammad Ismail
Published: May 2019

The purpose of this research to improve pantun writing skill through Cooperative Learning Model of Concept Sentence in the fourth grade one of Elementary School in Surakarta the academic year 2017/2018. The type of this research is Classroom Action Research which consists of three cycles. Each cycle consists of four stages, namely planning, action, observation, and reflection. The subjects in this study were grade IV teacher and 21 IV graders one of Elementary School in Surakarta the academic year 2017/2018. The data collection techniques are conducted through interview, observation, test, and documentation. The data validity uses content validity, source triangulation, and technical triangulation. The data were analyzed by comparative descriptive technique and interactive analysis model, consisting of three steps, namely data collection, data presentation, and conclusion or verification. The result of research shows the improvement applying of Cooperative Learning Model of Concept Sentence was able to improve pantun writing skill the fourth grade one of Elementary School in Surakarta the academic year of 2017/2018.
PENGEMBANGAN MODUL PEMBELAJARAN SAINS BERBASIS KEARIFAN LOKAL DAERAH NGAWI PADA TAMAN KANAK-KANAK
Authors: Susdarwati Susdarwati , Agustina Degi Arlinda
Published: May 2019

This research is based on the facts in the field that kindergarten teachers do not have teaching materials about the Science learning module based on local wisdom so that the cognitive abilities of children in the field of scientific ability and knowledge of local wisdom is still low. The purpose of this research are: 1) to produce product of the Science learning module based on local wisdom of Ngawi area and 2) to analyze the feasibility of the Science learning module based on local wisdom of Ngawi area. This research is Research and Development (R & D) by using 4-D model covering define stage, design, develop, and disseminate proposed by Thiagarajan. Data collection using questionnaire. The result of the research shows that: 1) The Science learning module based on local wisdom developed with the characteristic of curriculum 2013 is based on the scientific approach component with local wisdom of Ngawi area with the experimental method 2) The feasibility of the Science learning module based on local wisdom is feasible to be used based on the assessment by the expert lecturer 51.75 with category is very good. The result of the assessment of 9 kindergarten teachers of the module on the limited trial was 52.78 with very good category. The result of the assessment of 21 kindergarten teachers on the module on field trial was 57.05 with very good category of maximum score 60.
The THE EFFECT OF HYDROPONIC GARDENING ACTIVITIES AND PARENT INVOLVEMENT ON CHILDRENâ€™S NATURALISTIC INTELLIGENCE
Authors: Pratiwindya Dini
Published: May 2019

Living in a big city such as Jakarta that is densely populated and crowded is challenging. The limited open land is an obstacle for schools in urban areas, especially in the Central Jakarta region, to stimulate children's naturalistic intelligence and sometimes become a forgotten thing. The rapid progress of technology and information makes children become electronic addiction and nature deficit disorder. The teacher feels it is difficult to carry out activities related to nature.

The results of preliminary observations show that the naturalistic intelligence of early childhood still has not received attention to be developed. The lack of teacher creativity to create and design activities to improve children's naturalistic intelligence is also another obstacle. Likewise, parent involvement in children's learning activities is still not optimal.

The aims of this study was to look at the effect of hydroponic gardening activities and parents involvement on the naturalistic intelligence of early childhood. This study included an ex post facto study using a quantitative survey research approach to TK B children.

The results of the studyshowed that there were hydroponic gardening activities and parental involvement had a significant influence on naturalistic intelligence in early childhood. Urban farming activities such as hydroponic gardening need to beintroduced to kindergaten teachers to get around the limited land in schools. Hydroponic gardening activities can bedesigned so parents can be involved in learning with children and teachers with a pleasant atmosphere
EFFECTIVE MANAGEMENT CLASS CONCEPT (Case Study: Student Behavior Problematics)
Authors: Afriadi Bambang
Published: May 2019

The effectiveness of the learning process is part of good classroom management. But be aware that every individual in the class (student) does not have a homogeneous but heterogeneous character. Implementation of classroom management will encounter various inhibiting factors. Reviews These barriers can come from teachers Themselves, from students, the family environment, and or because of the facilities. The condition of teaching and learning will be sustained while teachers during the process of concentration can maintain student learning and student behavior. Therefore, management in the class Becomes important to be Discussed, and found the solution. In writing this article using research literature from various sources related to this topic related to the subject.
PERBANDINGAN FORGIVENESS PADA WANITA KORBAN KDRT DITINJAU DARI KEHADIRAN ANAK
Authors: Ariyani Mira , Qonita Maryam
Published: May 2019

The purpose of this study was to find out the comparison in forgiveness of women victims of domestic violence in terms of the presence of children. The research used  quantitative method  wtith t-test technique to compare the means of two groups sample. The sample in this study for women with children is 30 respondents. And The sample in this study for women without children is 30 respondents.  The sampling techniques used in this research is non probablity sampling test. Data obtained using The Transgression-Related Interpersonal Motivations Inventory-18 (TRIM-18) designed by McCoullough and adopted by researcher. Based on analysis data using independent t-test technique, its known that t t = -,0444 < 2.002; p =0,639 > 0,05. Based on the results, this means that there is no significant difference of forgiveness in women victims of domestic violence reviewed from children presence.
PENGARUH HARGA DIRI TERHADAP PREFERENSI PEMILIHAN PASANGAN HIDUP PADA WANITA DEWASA AWAL YANG MENGALAMI QUARTER-LIFE CRISIS
Authors: Rosalinda Irma , Michael Timothy
Published: May 2019

This study aims to see the effect of self esteem towards mate selection preference in early adult women who experiencing quarter-life crisis. Participants in the study are 137 adult women aged 25 to 29 years old, working in Jakarta, single, and experiencing quarter-life crisis. The study used quantitative method and linear regression with one predictor. The measurement of self esteem using adopted instrument from Azwar, meanwhile for the measurement of mate selection using adapted instrument from Townsend and to screening the subjects who experiencing quarter-life crisis using adopted instrument from Agustin. The result show that there is an effect between self esteem on mate selection preference in early adult women who experiencing quarter-life crisis.
Identification of key genes and regulators associated with carotenoid metabolism in apricot (Prunus armeniaca) fruit using weighted gene co-expression network analysis
Authors: Zhang Lina , Zhang Qiuyun , Li Wenhui , Zhang Shikui , Xi Wanpeng
Published: May 2019

Background: Carotenoids are the main class of terpenoid pigments that contribute to the color and nutritional value of many fruits. However, while their biosynthetic pathway have been well established in a number of model plant species, many details of the regulatory mechanism controlling carotenoid metabolism remain to be elucidated. Apricot (Prunus armeniaca) fruit are rich in carotenoids and substantial amounts accumulate during ripening, making them a valuable system to investigate carotenoid metabolism.
Results: In this study, we compared the apricot transcriptome profiles of bulked samples of ripening fruit. A total of 44,754 unigenes and 6,916 differentially expressed genes were detected during ripening, and 33,498 unigenes were annotated using public protein databases. Weighted gene co-expression network analysis (WGCNA) showed that two of thirteen gene expression modules were highly correlated with carotenoid metabolism, and a total of 33 structural genes involved in the carotenoid biosynthetic pathway were identified. Further, network analysis revealed that the transcription factors ERF4/5, PIF3/4, HY5, MADS14, NAC25, GLK1/2, MYC2 and MYB21/44 have potential regulatory roles in carotenoid metabolism during ripening.
Conclusions: Based on these results, a regulatory network model is proposed. Our findings provide a platform for future functional genomic analysis and provide new insights into carotenoid metabolism.
Full-length transcriptome sequences of Agropyron cristatum facilitate the prediction of putative genes for thousand-grain weight in a wheat-A. cristatum translocation line
Authors: Zhou Shenghui , Zhang Jinpeng , Han Haiming , Zhang Jing , Huihui Ma , Zhang Zhi , Lu Yuqing , Liu Weihua , Yang Xinming , Li Xiuquan , Li Lihui
Published: May 2019

Background

Agropyron cristatum (L.) Gaertn. (2n = 4x = 28; genomes PPPP) is a wild relative of common wheat (Triticum aestivum L.) and provides many desirable genetic resources of wheat improvement. However, there is still a lack of reference genome and transcriptome information for A. cristatum, which severely impedes functional and molecular breeding studies.

Results

Single-molecule long-read sequencing technology from Pacific Biosciences (PacBio) was used to sequence full-length cDNA from a mixture of leaves, roots, stems and caryopses and constructed the first full-length transcriptome dataset of A. cristatum, which comprised 44,372 transcripts. As expected, the PacBio transcripts were generally longer than the transcripts assembled via the Illumina sequencing platform in a previous study. By mapping the full-length transcripts in this study, we identified tissue-enriched expressed transcripts and enriched GO terms, indicating that tissue-enriched transcripts were enriched for particular molecular functions that varies with tissue. We identified 3,398 novel and 1,352 A. cristatum-specific transcripts compared with the wheat gene model set. In order to better apply this transcriptome of A. cristatum, the A. cristatum transcripts was integrated with wheat genome as a reference sequences to try to identify candidate A. cristatum transcripts associated with thousand-grain weight in a wheat-A. cristatum translocation line Pubing 3035.

Conclusions

Full-length transcriptome sequences were used in our study. The present study not only provides comprehensive transcriptomic insights and information for A. cristatum but also proposes a new method for exploring the functional genes of wheat relatives under a wheat genetic background. The sequence data have been deposited in the NCBI under BioProject accession number PRJNA534411.
iTRAQ-based Comparative Proteomic Analysis of Flag Leaves of Two Wheat (Triticum aestivum L.) Genotypes Differing in Waterlogging Tolerance at Anthesis
Authors: Wei Mingmei , Li LiuLong , Xie Ke , Yang Rui , Wang Xiaoyan , Sha Aihua
Published: May 2019

Background

Waterlogging is one of the major abiotic stresses limiting wheat product. Plants can adapt to waterlogging with changes in morphology, anatomy, and metabolism. A number of genes or proteins were responsive to waterlogging.

Results

in this sduty, the iTRAQ-based proteomic strategy was applied to identify waterlogging-responsive proteins in wheat. A total of 7710 proteins were identified in waterlogging tolerant and sensitive wheat varieties XM55 and YM158 at anthesis under waterlogging or not. Sixteen proteins were differentially accumulated between XM55 and YM158 under waterlogging with cultivar specificity. Among them, eleven proteins were up-regulated and five proteins were down-regulated. The up-regulated proteins included Fe-S cluster assembly factor, heat shock cognate 70, GTP-binding protein SAR1A-like, and CBS domain-containing protein. The down-regulated proteins contained photosystem II reaction center protein H, carotenoid 9,10 (9',10')-cleavage dioxygenase-like, psbP-like protein 1, and mitochondrial ATPase inhibitor. In addition, nine proteins were responsive to waterlogging with non-cultivar specificity. These proteins included 3-isopropylmalate dehydratase large subunit, solanesyl-diphosphate synthase 2, DEAD-box ATP-dependent RNA helicase 3, and three predicted or uncharacterized proteins. Sixteen out of the twenty-eight selected proteins showed consistent expression patterns between mRNA and protein levels by quantitative real-time PCR.

Conclusions: Our study indicates the much proteins were differential accumulated between the two contrast waterlogging wheat varieties in response to waterlogging, which provide insight into wheat response to waterlogging stress. The identified differentially accumulated protein might be applied to develop waterlogging tolerant wheat.
Transcriptome analysis of molecular mechanism to pyrethroids resistance in Spodoptera litura
Authors: Li Dongzhi , Mei Yu , Wang Jianhua , Chen Xiling , Wang Chengju , Xu Li
Published: May 2019

Background

Spodoptera litura is a destructive agricultural pest and had evolved resistance to multiple insecticides, especially pyrethroids. At present, the resistance mechanism to pyrethroids remains unclear.

Results

Four field-collected populations, namely CZ, LF, NJ and JD, were identified to have high resistance to pyrethroids, and the resistant ratio ranged from 40.8 to 1764.0-fold. To explore pyrethroids resistance mechanism, the transcriptome between pyrethroid-resistant (LF and NJ) and pyrethroid-susceptible (GX) populations were compared by RNA-sequence. Results showed that multiple differential expressed genes were enriched in metabolism-related GO terms and KEGG pathways. 35 up-regulated metabolism-related genes were screened to verify by qRT-PCR. Consistent up-regulation of 13 unigenes, including 3 P450s, 4 GSTs, 1 UGTs, 4 COEs and 1ABC, were verified in the additional pyrethroids resistant populations CZ and JD. The expression level of CYP3 and GST3, which were homologous to CYP321A8 and GST1, respectively, showed good correlation with their pyrethroids resistance level among CZ, LF, NJ and JD populations. While the expression level of CYP12, CYP14, COE4 and ABC5 showed good correlation with their pyrethroids resistance level in at least three populations. UGT5 had the highest expression level among the tested UGT genes in the four pyrethroids resistant populations.

Conclusion

CYP3, CYP12, CYP14, GST3, COE4, UGT5 and ABC5 play important roles in pyrethroids resistance among the four field-collected populations. Our study provided a valuable resource for further study of pyrethroid resistance mechanisms in S. litura.
Comprehensive analysis of the differentially expressed receptor-like kinase genes in responding to pollination in A. thaliana and B. napus
Authors: Gao Qiguo , Jiang Yupeng , Chen Xingyu , Dong Yuming , Kuang Chen , Wang Xiaoli
Published: May 2019

Background

Successful sexual reproduction in flowering plant requires extensive communications between male and female organs and tissues. Although RLKs have been proved to play critical roles in these communications, so far the identified RLKs are still limited. Here we performed a comprehensive analysis on differentially expressed RLKs in responding to pollination in Arabidopsis thaliana and Brassica napus to contibute to further analysis on RLKs’ function in male-female communication.

Result

In this study, a total of 2,583 B. napus AtRLK orthologs were obtained. 89 AtRLKs showed obvious expression level changes after pollination in A. thaliana or in B. napus. Although 30 differentially expressed AtRLKs were opened anthers and anthers of mature flower before opening preferentially expressed or hydrated pollen-enriched, up to 79 AtRLKs corresponding to 129 B. napus orthologs showed obvious expression level changes at different time points after pollination. Among 89 differentially expressed AtRLKs after pollination, only 7 AtRLKs were shared by differently expressed genes during in vitro pollen tube growth, 3 of 7 AtRLKs’ expression level change tendency after pollination and during PTG were different.

Conclusions

Amount to 89 AtRLKs were differentially expressed in responding to pollination in A. thaliana and B. napus, and their expression level changes should be mainly induced by pollen-stigma interaction, several of them had been proved to function in male-female communication in the former reports.
Synthesis and in silico investigation of Schiff base derivatives of 1H-indole-2,3-diones and their Co(II) and Ni(II) complexes as antimicrobial agents
Authors: Echekwube Helen O. , Ukoha Pius O. , Ujam Oguejiofo T. , Nwuche Charles O. , Asegbeloyin Jonnie N. , Ibezim Akachukwu
Published: May 2019

3-[(2-aminophenyl)imino]-1,3-dihydro-2H-indol-2-one, (Lo), 1,3-phenylenediazanylylidene di (1,3-dihydro-2H-indol-2-one), (Lm) and 1,4-phenylenediazanylylidene di(1,3-dihydro-2H-indol-2-one) (Lp) were synthesized by the reaction of 1H-indole-2,3-dione with benzene-1,2-diamine, benzene-1,3-diamine and benzene-1,4-diamine respectively. The reaction of Lo, Lm and Lp with Co(II) and Ni(II) halides gave the corresponding coordination complexes which were characterized by elemental analysis, molar conductance, infra-red, GC-MS and electronic spectral studies. Docking of the 1H-indole-2,3-diones toward the binding sites of penicillin binding protein and DNA gyrase showed they interacted favourably with the test antibacterial targets at deltaGs range of -2.51 to -5.48 kcal/mol. In accordance to literature report, coordination of cobalt and nickel to the ligands yielded metal complexes which exhibited improved interaction with the protein targets (at deltaGs range of -8.70 to -10.20 kcal/mol). In vitro antimicrobial studies against some microorganisms showed that some of the compounds were active against few Gram negative and Gram positive bacteria. The Lo, Lm and Lp had no activity against any of the test microorganisms but the Co(II) and Ni(II) complexes, showed antibacterial activity. The [Co(Lo)2] and [Ni(Lo)2] complexes generated the least antibacterial response. [Co(Lo)2] was ineffective against E. coli 6 and Staphylococcus sciuri subsp sciuri while Bacillus subtilis was resistant to [Ni(Lo)2] which moderately inhibited E. coli 14 (7 mm). Both compounds indicated zero activity against Pseudomonas aeruginosa. The complex that evoked the highest bactericidal activity were [CoLm]Cl2 and [NiLp]Cl2. The antibiogram activity of [CoLm]Cl2 was found between 20 and 30 mm with E. coli 6 displaying greater sensitivity (30 mm) and S. sciuri the least (20 mm). The activity of [NiLp]Cl2 complex indicate that the activity spectrum of the organisms occurred within 29 and 45 mm range; the least sensitive were E. coli 14 (29 mm) and B. subtilis (29 mm) while the most sensitive was S. sciuri subsp sciuri (45 mm). The two compounds were further studied for minimum inhibitory concentration (MIC) and their binding modes towards the studied protein targets were analyzed. Result indicate that the MIC of 1.25 ug/mL was determined for the complex ([NiLp]Cl2) against S. sciuri subsp sciuri (12 mm) while in case of [CoLm]Cl2, the MIC was 2.5 ug/mL (13 mm) against the same organism. The binding modes predicted for [CoLm]Cl2 and [NiLp]Cl2 identified essential residues necessary for interaction with the studied proteins and which could be targeted during structural/activity optimization.
Long-term trend analysis of climatic variables and reference evapotranspiration over different urban areas in Tunisia
Authors: Latrech Basma , Ghazouani Hiba , Asma Lasram , Douh Boutheina M. , Mohsen Mansour , Boujelben Abdelhamid
Published: May 2019

In this study, the trend analysis of annual climatic variables including Tmax, Tmin, Tmean, RHmean, WS and SR as well as FAO-56 PM ET0 were investigated in three locations in Tunisia during 1984-2007. The Mann-Kendall Test, the Sen's Slope Estimator and linear regression tests were used for the analysis. The obtained results showed a significant increasing trends (a < 0.001) and (a < 0.01) in annual Tmax, Tmin and Tmean at all the considered locations. However, Tmin increase faster than Tmax with a slope of magnitudes ranging between 0.057 to 0.1 oC year-1. For RHmean, a non-significant tendency of decrease was observed in Chott-Mariem station. However, significantly increasing trends were found for Kelibia and Tunis Carthage. Concerning the WS variable, a tendency of decrease is observed during the study period for all the stations. Nevertheless, the statistical analysis of decreasing tendency of wind speed varied from non-significant for Tunis Carthage to highly significant (a <= 0.001) at Chott-Mariem and Kelibia. Despite the highly significant upward trend of temperature, the temporal pattern of mean annual FAO56 PM-ET0, over the different stations, did not exhibit any significant trend except for Kelibia station.
Public health and hygienic condition of retailers at fish markets in Sylhet Sadar of Bangladesh
Authors: Hossain Md. Alamgir , Hossain Md. Motaher , Rasul Md. Golam , Bapary Mohammad Abu Jafor
Published: May 2019

The hygienic and sanitary conditions of majority of the retail fish markets are very poor and unhealthy that may have an impact on fish retailers. The present study was conducted in two retail fish markets located in Kajirbazar and Bondorbazar, in Sadar Sylhet, to assess the hygiene and sanitary condition of fish retailers. Information was collected through questionnaire interview and participatory rural appraisal (PRA) from the retailers and other value chain stakeholders. It was found that about 82% of fish retailers were permanent in these retail markets. The retailers are mainly involved in selling various species of fishes such as carps, catfishes, tilapia, koi, hilsa, shrimp and other small indigenous fishes. The sources of these fishes are mainly of nearby haors, river and ponds. The retailers get fishes from various suppliers and also collected from producers. The income level of fish retailers is relatively low although they are trying to improve their socio-economic conditions. Besides, about 9% of the retailers do not have any formal education whereas 70% and 21% have their education in primary and secondary level, respectively. Although the majority of the retailers were found literate, however, their knowledge on public health was seemed to be very poor. Due to lack of proper knowledge on public health, they are frequently affected by various diseases such as common cold, diarrhea, lesion, fever, skin disease and so on. Particularly, 48% of the fish retailers are affected by the lesion on hands, and 31% and 27% of retailers have been affected by the lesion between fingers or toes, respectively. About 20% of the retailers do not have adequate knowledge on fish quality or benefit of using ice in fish preservation in retail markets. Considering all together, the present study revealed that the retailers operated fish markets are ill-managed, unhygienic and unsatisfactory. The lack of proper fish preservation facilities, poor water supply and unplanned infrastructures are generally regarded as a noticeable problem in the retail markets. In addition, the lack of retailer’s education, consciousness about fish quality, lack of training on hygienic and sanitary conditions are seemed to be involved in spoiling or deteriorating fish quality before reaching to the consumers. Therefore, the proper education and training on hygienic and sanitary conditions as well as sufficient knowledge on maintaining fish quality is required for retailers involved in fish retailing in the markets. It can be concluded that the improvement of relevant facilities of fish markets and proper supervision by respective authorities can ensure the better public health for retailers and safe fish food for consumers.
Birds species composition and abundance of a relativelly undisturbed vegetation at Mount Pati, Lokoja, Kogi State
Authors: Tanko Dauda , Chinweuba Rita
Published: May 2019

Avifauna of a relatively undisturbed vegetation at Mount Patti of Lokoja was surveyed from January to June, 2018. Line transect and point count techniques were used for data collection. This was done by weekly visits to the site between 6:00 h and 10:00 h of the day. Bird identification was done with the aid of a pair of binoculars, Field Guide of birds of western Africa and recorded bird calls. Monthly variation and season variation in bird composition and abundance were compared using Shannon-Wiener diversity index and equitability index. There were 39 species in 21 families encountered during the survey. The Family Nectarinidae had the highest number of 5 species, followed by Columbidae and Estrildidae with 4 species each. A total of 1,148 individuals were encountered during the six months survey with village weaver having the highest encountered rate of 107 while yellow-throated Long-claw had the least encountered rate of 4 individuals. Fluctuation was observed in the monthly encountered rate of the birds. Diversity and equitability indices had their highest values of 5.24 and 1.51 in January. More birds (696) were encountered in the wet season than the dry season (452). Four species were seen only in the wet season. Species effort curve showed that there are more species to be discover. The number of species encountered in this study revealed that the mountain is rich composition of bird species, even though the site seems to favour species that show preference to disturbed areas. The on-going anthropogenic activities probably paved way to these species to move in. Monthly and seasonal fluctuation of bird species diversity and abundance may be due to a combination of physical and biological factors. The physical and biological factors observed at the site which we speculate could be reasons for the observed fluctuations include slash and burnt system of farming, fuel-wood harvesting, intensive sporting activities creation of foot paths etc. High encountered rate indicate abundance and high activity level of the species. The village weaver was the most encountered species probably because they are known to be lousy, move in flocks and breed in colonies. In view of the rich composition and abundance of bird species on Mount Patti and the site being a suitable breeding site for the weavers. We recommend further study of the place as there are yet more species to be discovered as indicated by the species effort curve. There is need for conservation procedures to be initiated at the place and this study should serve as a baseline to initiate such programme by the state government.
Human health risk assessment of heavy metals from a crude oil polluted agricultural soil in Ogoniland, Nigeria
Authors: Chukwuma Chukwuemeka C. , Onuah Chigozie Linda , Monanu Michael Okechukwu
Published: May 2019

Heavy metal contamination of agricultural soils can instigate risk to human health via oral ingestion, particle inhalation, and dermal contact. The study evaluates the concentrations, distribution, and human health risk of various heavy metals in soil samples from crude oil polluted agricultural soil of Ogoniland, Nigeria. Soil samples were collected and analyzed for cadmium, lead, chromium, copper, iron, manganese, zinc, arsenic and mercury using AAS (SensAA). Measured concentrations of these heavy metals were employed to calculate the health risk for children and adults using Hazard Index (HI). For the children and adult population, the HI value for oral ingestion to lead in the polluted site was greater than one (HI > 1), and hence non-carcinogenic effects is considered as significant for human health. It is therefore of the essence to consider taking risk management measures in order to reduce the risk of human health from lead.
Eficacia intercultural y uso de videos: caracterización de la producción audiovisual de estudiantes de básica secundaria del Caribe colombiano
Authors: Quintero Solano Aldemir , Riveira Zuleta Carlos Arturo , Mosquera Arteta Arleyn , Cano Barrios John , Manotas Salcedo Edna
Published: May 2019

Este artículo presenta los resultados de una investigación que buscó promover el conocimiento de una región del caribe colombiano con un grupo de estudiantes de básica secundaria del caribe colombiano, mediante la producción de videos de bajo costo. Es una investigación de corte cualitativo con un diseño de investigación-acción -participación. El grupo investigador propuso a los docentes el diseño de una unidad didáctica en el que los estudiantes realizarían la producción de videos con dispositivos móviles sobre temas de su propia cultura. Participaron 54 estudiantes con edades entre 14 y 16 años. Se pudo evidenciar que los estudiantes y docentes, que participaron, se vieron interesados en investigar acerca de su legado cultural, saber y conocer cuál era la etnia o cultura de la que provenían sus padres, abuelos y ellos mismos. Las interacciones, resultantes del proceso de producción de los videos, ayudó a promover el conocimiento de su propia cultura, por medio del proceso de toma decisiones, solución de conflictos y respeto entre pares.
On the application of the depth-averaged random walk method to solute transport simulations
Authors: Yang Fan , Liang Dongfang , Wu Xuefei , Xiao Yang
Published: May 2019

Most numerical studies on solute mixing rely on mesh-based methods, and complicated schemes have been developed to enhance numerical stability and reduce artificial diffusion. This paper systematically studies the depth-averaged random walk scheme, which is a meshfree method with the merits of being highly robust and free of numerical diffusion. First, the model is used to solve instantaneous release problems in uniform flows. Extensive parametric studies are carried out to investigate the influences of the number of particles and the size of time steps. The predictions are shown to be independent of time steps but are sensitive to the particle numbers. Second, the model is applied to the solute transport problem along an estuary subject to extensive wetting and drying during tidal oscillations. Finally, the model is used to investigate the wind-induced chaotic mixing in a shallow basin. The effect of diffusion on the chaotic mixing is investigated. This study proposes a generic sampling method to interpret the output of the random walk method and highlights the importance of accurately taking diffusion into account in analysing the transport phenomena. The sampling technique also offers a guideline for estimating the total number of particles needed in the application.
Coumarin: A Promising Scaffold for Design and Development of Bioactive Agents
Authors: Alshibl Hanan M. , Al-Abdullah Ebtehal S. , Alkahtani Hamad M.
Published: May 2019

Background:

As coumarin derivatives are known to prevent and treat various diseases, they
have attracted the attention of medicinal chemists. They have strong potential as drugs because their
benzopyrone structure can interact noncovalently with numerous enzymes and receptors.

Methods:

The aim of this review was to summarize the most recently published literature on coumarin
derivatives in terms of their antioxidant, antimicrobial, anti-inflammatory, anticancer, and other miscellaneous
properties.

Results:

Coumarin derivatives have a wide range of biological activities. They exhibit antioxidant, antimicrobial,
anti-inflammatory, anticancer, anti-coagulant, and anti-Alzheimer effects.

Conclusion:

The coumarin nucleus is an interesting starting point for the design and development of
novel bioactive agents. The present review may help medicinal chemists design biologically active molecules
based on the coumarin nucleus.
Radioprotective Effect of Gliclazide as an Anti-Hyperglycemic Agent Against Genotoxicity Induced by Ionizing Radiation on Human Lymphocytes
Authors: Pouri Maysa , Shaghaghi Zahra , Ghasemi Arash , Hosseinimehr Seyed Jalal
Published: May 2019

Objectives:

Gliclazide (GL) is widely used to reduce hyperglycemia in diabetic patients.
The aim of this study was to investigate the protective effect of GL against chromosome damage induced
by ionizing radiation in human blood lymphocytes.

Methods:

In this experimental study, peripheral blood samples were collected from human volunteers
and treated with GL at various concentrations (5, 25, 50 or 100 μM) for three hours. Then samples
were irradiated to X-ray (1.5 Gy). Blood samples were cultured with mitogenic stimulation. The
frequencies of micronuclei in cytokinesis-blocked binucleated lymphocytes were determined in the
different samples. The antioxidant activities of GL were assayed by two different methods as 1,1-
diphenyl-2-picryl hydrazyl radical (DPPH) free radical scavenging and reducing antioxidant power
assays.

Results:

GL significantly reduced the percentage of micronuclei in lymphocytes which were irradiated.
The maximum radioprotection in the reduction of percentage of micronuclei in lymphocytes was
observed at 100 μM of GL with 52% efficacy. GL exhibited excellent free radical scavenging activity
and reducing power at concentration dependent activities. The IC50 values of GL were lower than
ascorbic acid. Higher potencies were observed in the antioxidant activities for GL than ascorbic acid
in both methods.

Conclusion:

This data exhibits that GL is a powerful radioprotective agent that could protect healthy
cells against the chromosome damage induced by ionizing radiation through antioxidant activity. The
radioprotective effect is new indication of GL for patients' protection against side effect induced by
ionizing radiation.
Prenatal Breastfeeding Training in Turkish Women: How are the effects?
Authors: AKBAYRAM Hatice Tuba , ŞAHİN Hüseyin Avni
Published: May 2019

Objective: Mothers should be trained and
supported to enable them to breastfeed effectively, as the mother’s milk is the
most important nutrient in an infant’s feeding.  This study intends to show the effect of
breastfeeding training during pregnancy on mothers’ breastfeeding experiences
and emphasize its importance. Materials and Methods: This study was performed between December 2013 and February
2014. A cross-sectional study was conducted with 190 mothers. In this study, we
compared two groups, who were educated or not educated on breastfeeding and
breast milk. The data was collected through a face to face interview. Results: The study group consisted of 190 mothers; 100 in the control group and
90 in the training group. There was a significant difference in the frequency
(88,8 %) and duration of breastfeeding (62,2 %) among the mothers in the
training group. There was a significantly high tendency among mothers in the
control group to feed their babies water, supplementary food / baby formula and
use pacifiers during the first 6 months. Using feeding bottles has been shown
to cause mothers to feed their babies only with breast milk for less than 6
months. Conclusion: It has been
concluded that breastfeeding training given to mothers before delivery
increases breastfeeding frequency and duration while lowering the use of
feeding bottles and making the practice of feeding babies water in the first 6
months less common. Mothers should be trained on breast milk and breastfeeding
starting from the period before delivery.Amaç: Bebek beslenmesinde en önemli
besin olan anne sütünün etkili ve bilinçli olarak bebeklere verilmesi için
annelerin bilgilendirilmesi ve desteklenmesi şarttır. Bu çalışma, gebelik
döneminde verilen anne sütü ve emzirme eğitiminin emzirme üzerine olan etkisini
göstermek ve eğitimin önemini vurgulamak amacıyla yapılmıştır. Gereç ve Yöntem: Bu çalışma Aralık 2013
ile Şubat 2014 arasında gerçekleştirilmiştir. 190 anne ile kesitsel bir çalışma
yapılmıştır. İki ayrı grubu, emziren ve anne sütü üzerine eğitimli ve
eğitilmemiş annelerle karşılaştırmayı amaçlayan bu çalışmada veriler yüz yüze
yapılan görüşme sonucu toplanmıştır. Bulgular:
Kontrol grubu 100, eğitim grubuna 90 olmak üzere toplam 190 anne çalışmaya
alınmıştır. Eğitim grubu annelerde anne sütü ile beslenme sıklığı (%88,8) ve süresinde
(%62,2) anlamlı olarak fark bulunmuştur. Kontrol grubu annelerde ilk altı ayda
su, emzik, tamamlayıcı gıda/mamaya başlanma davranışı anlamlı derecede
yüksektir. Biberon kullanımının altı aydan az sadece anne sütü ile beslenmeye
neden olduğu gösterilmiştir. Sonuç:
Doğum öncesi dönemde annelere verilen eğitimle emzirme sıklığı ve süresinin
arttığı, biberon kullanma davranışı ve ilk altı ayda su vermenin azaldığı
sonucuna varılmıştır. Anneler, doğum öncesi dönemden başlayarak anne sütü ve
emzirme ile ilgili eğitimler verilerek bilgilendirilmelidir.
Happiness Measurement Via Classroom Based on Face Tracking
Authors: Al-Ani Muzhir Shaban
Published: May 2019

Teaching and learning are important factors in our life, so, increasing the happiness during class cause raising the ability of learning. This research focused on the evaluation of the learning process via classroom before and after applying the proposed method. One of the big challenge during classroom lesson, the students after a short period of time (about 10-15 minutes) at the beginning of the session, turn off their minds and remain absolutely out of understanding. Our goal is to revitalize the classroom environment so that you are always attentive to the lecture. The proposed approach aims to track and detect the emotional facial expression and transient from emotional facial expression to raise the happy expression in order to reach the classroom happiness. Image processing issue is an important part of this approach in which based on face recognition and tracking, then evaluates the students’ happiness according to the proposed mode that located in the classroom. This model is implemented from Raspberry Pi device, tracking camera and high definition screen. The implemented algorithm allows you to continue of face tracing and make rising of happiness as possible. Increasing happiness is an important factor in making students more attractive and more understanding for the classroom lecture. This approach is implemented to cover both software and hardware, so, it is acceptable to work in real time.
Roles and capabilities of the retail supply chain organization
Authors: Defee C. Clifford , Randall Wesley S , Gibson Brian J
Published: May 2019

Supply chain management (SCM) has become a critical strategic function in recent years. Research in the discipline has been focused toward the upstream side of the supply chain on functions such as warehousing, transportation, procurement and production. As power has shifted downstream toward retailers and their customers, SCM research has been slow to respond. This represents a significant gap, and a significant opportunity. Retailers face challenges that differ from those found in upstream suppliers and manufacturers. We present findings from a study of senior supply chain executives in the retail industry that focuses on the supply chain challenges of greatest importance to retailers, and the evolving capabilities used to address these issues.
A study of logistics strategies in small versus large U.S. manufacturing firms
Authors: Spillan John E , Kohn Jonathan W , McGinnis Michael A
Published: May 2019

The research reported in this manuscript empirically compares the similarities and differences of logistics strategies for small and large manufacturing firms. The hypotheses focus on whether there are significant differences between logistics strategies of small and large manufacturing firms and whether logistics strategy outcomes differ. The findings indicate that there are many similarities but differences do exist. The results identify dimensions of logistics strategy and assess their impact on logistics coordination effectiveness, customer service commitment, and company/division competitive responsiveness.
Using artificial neural networks for transport decisions: Managerial guidelines
Authors: Cook Robert L , Jenicke Lawrence O , Gibson Brian
Published: May 2019

One information technology that may be considered by transportation managers, and which is included in the portfolio of technologies that encompass TMS. is artificial neural networks (ANNs). These artificially intelligent computer decision support software provide solutions by finding and recognizing complex patterns in data. ANNs have been used successfully by transportation managers to forecast transportation demand, estimate future transport costs, schedule vehicles and shipments, route vehicles and classify earners for selection. Artificial neural networks excel in transportation decision environments that are dynamic, complex and unstructured. This article introduces ANNs to transport managers by describing ANN technological capabilities, reporting the current status of transportation neural network applications, presenting ANN applications that offer significant potential for future development and offering managerial guidelines for ANN development.
Trip patterns in Akure, Nigeria: A land-use analytical approach
Authors: Owolabi A.O.
Published: May 2019

For transportation planners, the use of Origin-Destination (OD) matrix adjustment, is receiving considerable attention. However, there are concerns about the validity of results, primarily related to the number and location of traffic count posts. This leads to the question “What would be the best set of traffic count posts to use in OD matrix adjustment modules?” It has been proved that solving this problem is cumbersome. There have been several attempts (either exact or heuristic approaches) to address this problem. But due to the inherent complexities, there is no efficient and easy-to-use methodology able to address situations on the scale of actual cases. This study demonstrates a simple way of identifying traffic count posts tailored to deal w ith real-size cases. The proposed methodology is based on a maximum matrix coverage criterion. Using a limited number of incremental trials, a set of links whose traffic flows give maximum coverage of the demand and maximum fitness to the corresponding traffic count rates are identified as traffic count posts. The results show that more traffic count posts do not necessarily yield a better result. This article reports on a project conducted for the public works ministry of the UAE city of Sharjah.
ALIMENTACION DE CONEJOS DE LEVANTE CON DIETAS EN MATERIAS PRIMAS NO CONVENCIONALES LAUREL, TOMILLO Y ZANAHORIA
Authors: Insuasty-Santacruz Efrén G. , Hidalgo Mary J. , Villota Byron D. , Mora Johnatan J. , Rosero Maria P.
Published: May 2019

Con el objetivo de determinar el efecto que tiene la inclusión de plantas aromáticas como aditivo en la alimentación de conejos en fase de levante, se evaluó las características organolépticas y productivas, en la granja conejar Santa Clara, ubicada en la vereda Santa Clara, corregimiento de El Encano, municipio de Pasto. Se trabajó con ocho animales en la etapa de crecimiento de la raza Nueva Zelanda blanco, escogidos al azar. Se aplicó cuatro tratamientos: T0 = forraje + concentrado, T1 = forraje + concentrado + tomillo (Thymus vulgaris), T2 = forraje + concentrado + laurel (Morella pubescens) y T3 = forraje +  zanahoria (Daucus carota). Se encontró diferencias significativas entre los tratamientos (p<0,05), resultando el tratamiento T3 con mayor ganancia de peso (17,86 g/día). El presente estudio demuestra el efecto positivo de las especies aromáticas, en especial el tomillo (T. vulgaris) en la alimentación de conejos, de igual manera, el  efecto en  las características organolépticas en la canal del conejo, convirtiéndose  en una alternativa forrajera importante para los productores en cuanto a la producción y comercialización de carne de conejo. Palabras Claves: plantas aromáticas, Oryctolagus cuniculus, levante, comercialización FEADING OF LEVANT RABBITS WITH DIETS IN NON CONVENTIONAL RAWMATERIALS, BAY LEAF, THYME AND CARROTABSTRACTWith the objective of determining the effect that has the inclusion of aromatic herbs as an additive in the diet of levant rabbits, were evaluated organoleptic and productive characteristics, in Santa Clara rabbit farm, located in the village of Santa Clara, corregimiento of El Encano, municipality of Pasto. We worked with eight animals at the groeth stage of New Zealand White bread, randomly selected. Four treatments were applied: T0 = grass + concentrate feed, T1 = grass + concentrate feed + thyme (Thymus vulgaris), T2 = grass + concentrate feed + laurel (Morella pubescens) and T3 = grass + carrot (Daucus carota). Significant differences between treatments (p<0.05) were found, resulting T3 treatment with greater weight gain (17.86 g/day). The present study shows the positive effect of this aromatic species, especially the thyme (Thymus vulgaris) in the feeding of rabbits, of equal way, the effect of the organoleptic features in the channel of the rabbit, this convert them in an alternative forage important for the producers in production and marketing of meat rabbit.
THORACIC RADIOLOGY
Authors: Editorial Article
Published: May 2019

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MILITARY AND EMERGENCY RADIOLOGY
Authors: Editorial Article
Published: May 2019

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IMAGING IN ONCOLOGY
Authors: Editorial Article
Published: May 2019

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BREAST IMAGING
Authors: Editorial Article
Published: May 2019

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Nucleotide diversity of Cyt b gene in drosophila subobscura Collin
Authors: Eric Pavle , Jelic Mihailo , Savic-Veselinovic Marija , Kenig Bojan , Andjelkovic Marko , Stamenkovic-Radak Marina
Published: May 2019

Mitochondrial DNA variability of Drosophila subobscura Collin from
Southeastern Serbia was studied with respect to Restriction Site Analysis
(RSA) of complete mitochondrial genome and the nucleotide sequence of
Cytochrome b (Cyt b) gene. The aim was to shed more light on the
evolutionary forces that shape mtDNA variation of this species. Samples were
collected from two sites in the foothills of the Balkan Mountains. No
genetic differentiation was found between groups and most of the variation
was observed within them. Restriction analysis revealed two main haplotypes
and several rare ones. The sequencing of Cyt b gene showed larger number of
haplotypes, among which, one is being the most common. The majority of
singletons differed from the most frequent haplotype by one nucleotide
change. Although some of the observed nucleotide differences may affect
their host?s fitness, the observed pattern of variation is consistent with
the seasonal fluctuations in population size.