bluuebunny/crossref_metadata_2025 huggingface dataset:
Doğal Koşullarda Elde Edilen Alüminyumun Akkaraman Koçlarında Düşük Dozlarda In Vitro Spermatolojik Parametreler Üzerine Etkisi
Authors: KAYA Abdulkadir , VARIŞLI Ömer , EKİCİ Hüsamettin , KIZIL Sedat Hamdi
Published: August 2020

Alüminyum doğada en çok bulunan üçüncü element olması kullanım alanını yaygınlaştırmıştır. Ucuz olması, kolay şekil verilebilmesi, ısıya dayanıklılığı ve parlak yüzey yapısı nedeniyle pişirme ürünü olarak kullanımını yaygınlaşmıştır. Bu nedenle alüminyum bazlı fırın tepsileri, folyolar ve çaydanlıklar yaygın olarak kullanılmaktadır. Alüminyumun yüksek ısılara maruz bırakılması yüzeyde kopmalara ve gıdalara alüminyum geçişine neden olmaktadır. Yapılan çalışmada 10 gram alüminyum folyo 1 litre distile su içerisinde 180 °C de 2 saat süreyle tutulmuştur. Böylece normal koşullar altında suya alüminyum geçişi sağlanmıştır. Elde edilen suyun farklı oranlarda buharlaştırılması ile farklı dozlarda alüminyumlu distile su elde edilmiştir. Elde edilen suyun sperm üzerine etkisini incelemek için Kırıkkale Üniversitesi Veteriner Fakültesi’ne ait 2 adet akkaraman koçundan elektro-ejakülatör ile elde edilen sperma kullanılmıştır. Distile su ve farklı oranlardaki alüminyumlu su ile PBS solüsyonu hazırlanmıştır. Deney grupları G-1 (kontrol), G-2 (alüminyumlu su) G-3 (%50 konsantre alüminyumlu su) ve G-4 (%75 konsantre alüminyumlu su) olacak şekildedir. Sperma 50x106/ml spermatozoa olarak gruplara eklendi. Gruplar 37 °C de su banyosunda inkubasyona bırakıldı. Tüm gruplar 0, 2, 4, 6. saatlerde motilite, canlılık ve mitokondriyal membran potansiyeli açısından değerlendirildi. Gruplar arasındaki fark istatiksel olarak belirlendi ve gruplar arasında anlamlı bir fark gözlenmedi.  Bu çalışma ile alüminyumun düşük dozlarda alımının spermatolojik parametrelere iv vitro olarak doğrudan bir toksik etkisi olmadığı belirlenmiştir. Fakat alüminyumun düşük dozlarda uzun süreli olarak alınmasının toksik etkiye sahip olabileceği değerlendirilmektedir.
Investigation of antiproliferative effects of Hypericum perforatum oil on myeloma cells
Authors: TUTUN Soner , KAYA Muhammet Mükerrem , USLUER Melike Sultan , TUTUN Hidayet
Published: August 2020

St. Johns wort (Hypericum perforatum) is a medicinal plant that exhibits important biological activities exhibit important biological activities being antioxidant, anti-inflammatory, immunomodulatory and/or antitumour. The aim of this study was to investigate antiproliferative effect of H. perforatum oil purchased from a commercial vendor on mouse myeloma cells. The cells were treated with various concentration (10%, 5%, 2%, 1%, 0.5%, 0.25%, 0.2% and 0.1%) of dimethyl sulfoxide (DMSO) to determine the non-toxic concentration. The cells were treated with various concentrations (15.6-500 ppm) of the oil dissolved in DMSO to examine its antiproliferative activity. Non-toxic dose of DMSO was at the concentration of lower than 0.2%. No effect on the cell proliferation was observed in the applied concentration of the oil. In conclusion, the oil had no antiproliferative effect on Myeloma cells at these concentrations.
Two New Records for Spider Mite Fauna of Turkey, Tetranychus kanzawai Kishida and Eotetranychus rubiphilus Reck (Trombidiformes: Tetranychidae)
Authors: Altunç Yunus Emre , Akyazı Rana
Published: August 2020

Two new spider mites, Tetranychus kanzawai Kishida and Eotetranychus rubiphilus Reck (Trombidiformes: Tetranychidae) were recorded for Turkish phytophagous mite fauna. While E. rubiphilus was obtained from Prunus domestica L. and Prunus cerasus L. (Rosaceae), T. kanzawai was found only on P. domestica in different municipalities of Ordu province, Turkey.
Structure of Wheat and Corn Farming: A Survey on Amik Plain Farmers
Authors: Halis Koçer Mehmet , Konuşkan Ömer
Published: August 2020

This study was conducted to identify the current problems of cereal crops like wheat and corn producers and to suggest solutions for overcoming those problems in Amik Plain (Antakya, Kirikhan, Kumlu, Reyhanli districts) in Hatay province of Turkey. In this study, the primary data was obtained by face-to-face survey from 100 cereal producers in Amik plain. All variables are given as frequency and percentage distribution, and numerical variables as mean. The survey assessed the level of education of grain producers, the number of individuals in the farm, record keeping, social security, crops (wheat and corn) growing area, yield, sowing and harvest date ranges, property and leasehold land use, cultural practices and grain production. The data were analysed using simple statistical analysis methods (frequency, averages, percentage distribution). The results indicated that about 50% of the cereal producers had higher educational degree. It was determined that producers had an average of 12.3 ha of wheat and 15 ha of corn cultivated area. Moreover, cereal production is well known as one of the cultural practices in the study area. The main problem of grain producers is that the low cereal prices. In addition, the Turkish Grain Board (TMO) does not purchase the production at the time of harvesting. Moreover, high production costs and corn irrigation are considered other problems that cereal producers are facing.
Geleneksel Nevzine Tatlısı Üretimi
Authors: Erdem Nuran , Berna Poçan Hatice , Babaoğlu Ali Samet , Karakaya Mustafa
Published: August 2020

Uzun yılların deneyimiyle ortaya çıkan özel ürünler olan geleneksel gıdalar, bir bölgenin kültürünü, kimliğini, karakteristiğini ve mirasını yansıtmakla birlikte kırsal bölgelerden göçü önleyerek o bölgelerin gelişimi ve devamlılığına da yardımcı olmaktadır. Toplumların kültürel zenginliğini ortaya koyması açısından sosyal yaşamda geleneksel gıdaların yeri oldukça önemlidir. Geleneksel gıdalar yaşanılan bölgedeki insanların beslenmesinde önemli yer tutmakta ve o bölgeye özgü damak tadını oluşturmaktadır. Kültürel zenginliklerden biri de geleneksel tatlılar olup, Anadolu‘nun çeşitli bölgelerinde üretilip tüketilmektedir. Geçmişten günümüze yüzyıllardır üretilen tatlılar kültürümüzde hep önemli bir yere sahip olmuştur. Geleneksel tatlılar, içine ilave edilen malzeme ve üretim teknolojisi bakımından gerek sütlü gerekse şerbetli tatlı olarak oldukça zengin bir çeşitliliğe sahiptir. Yüzyıllardır üretilmekte olan Nevzine Tatlısı Kayseri iline özgü tahin, pekmez ve ceviz kullanılarak hazırlanan geleneksel bir şerbetli tatlı çeşididir. Şerbetinde şeker ve üzüm pekmezinin birlikte kullanılması, bu tatlıyı diğer şuruplu tatlılardan ayıran bir özelliktir. Nevzine Tatlısı, dini bayramlarda mutlaka ikram edilir ve verdiği enerji oldukça yüksektir. Bu çalışmanın amacı, yörede yaşayanlarla yapılan görüşmelere ve araştırmalara dayanılarak, Kayseri‘nin geleneksel Nevzine Tatlısı, bileşenleri, hazırlanışı ve pişirilmesi ile ilgili bilgi vermektir.
Determination of Seasonal Changes on Lipid Content and Fatty Acids of Nemipterus randalli (Russell, 1986) from Mersin Bay
Authors: Bakan Mısra , Börekçi Nahit Soner , Ayas Deniz
Published: August 2020

In this study, the seasonal changes on lipid content and fatty acid levels of Nemipterus randalli from the Mersin Bay have been determined. Total lipid levels were found as 3.17%, 2.12%, 0.63%, and 0.72% in spring, summer, autumn and winter seasons, respectively. The fatty acid composition of this species is composed of 30 fatty acids. Major fatty acids are palmitic acid (C16:0) and stearic acid (C18:0) from saturated fatty acids (SFAs) oleic acid (C18:1n9c) and 11-docosenoic acid (ceteloic; C22:1n11) from monounsaturated fatty acids (MUFAs) and eicosapentaenoic acid (EPA; C20: 5n3), and docosahexaenoic acid (DHA; C22: 6n3) from polyunsaturated fatty acids (PUFAs). The highest level of palmitic acid was detected in the winter season, and the palmitic acid level varied between 15.41% and 20.72% (77.79-433.30 mg/100g). The highest level of stearic acid was determined in the spring season, and its levels varied between 14.75% and 19.14%, and its levels were also determined as 77.95-483.91 mg/100g. Oleic acid from the monounsaturated fatty acids varied between 5.46% and 7.98%, and its levels were found to be 31.98-224.38 mg/100g. Ceteloic acid varied between 5.73% and 7.80%, and its levels were determined to be 33.01-161.11 mg/100g. The EPA levels from the polyunsaturated fatty acids ranged from 4.34 to 5.34%, and its levels were found to be 19.30-137.50 mg/100g. The highest levels of DHA were detected in autumn, its levels varied between 21.09% and 23.00%, and its levels have also been detected as 102.30-604.25 mg/100g. The highest levels of Î£n3, Î£n6 and Î£n9 were found in the spring season. The levels of Î£n3, Î£n6 and Î£n9 varied between 26.73-27.19% (122.89-751.59 mg/100g), 4.19-4.79% (18.63-134.68 mg/100g) and 5.95-9.79% (35.22-247.15 mg/100g), respectively. AI and TI values in N. randalli were found at 0.28-0.36% and 0.33-0.36%, respectively.
Near Infrared Reflectance Spectroscopy and Multivariate Analyses for Fast and Non-Destructive Prediction of Corn Seed Germination
Authors: Çeliktaş Nafiz , Konuşkan Ömer
Published: August 2020

The application of near-infrared reflectance spectroscopy (NIRS) and multivariate analysis for determining the seed germination rate of corn genotypes was assessed. Seed samples about 90 gr belong to commercial and local corn varieties at various ages were scanned with FT-NIRS on the reflectance mode from 1000 to 2500 nm wavelength. Filter paper technique showed the seed germination rates varied between 18-100% depending on the genotypes after 7 days at ±25Â°C. Partial least squares regression (PLSR) was applied to the reference values corresponding to the spectra. The best statistical results obtained from the pre-treatment combinations of Smooth Savitzky-Golay 9 Points (sg9), MSC full and normalization to unit length (nle). The regression coefficient of calibration (R2C) and prediction (R2P) of the created NIRS calibration via chemometric software NIRCal are realized 0.97 and 0.98 respectively for the property of corn germination rate. The standard error of both calibration (SEC) and prediction (SEP) were almost overlapping (4.17%, 4.61% respectively). The prediction accuracy of the final NIRS model was quite reasonable with the acceptable root mean standard error of prediction (RMSEP) as 8.88%. According to the residual predictive deviation (RPD) index (4.18), the accuracy of the NIRS model regarded as in the best category. Therefore, the NIRS model developed here is sufficient to predict the corn seed germination rate very fast and non-destructively without using any regents.
Bir Devlet Üniversitesindeki (Eskişehir Osmangazi Üniversitesi) Personel ve Öğrenciler Arasında Farklı Etlik Piliç Barınma ve Besleme Sistemlerinin Tüketici Tercihi ve Algısı
Authors: Kop Bozbay Canan
Published: August 2020

Bu çalışmada, Eskişehir Osmangazi Üniversitesi personeli ve öğrencileri arasında farklı etlik piliç barınma ve besleme sistemlerinin tercih ve algısının bir araştırılması yapılmıştır. Rastgele seçilmiş 801 katılımcıya [257 akademik personel (akademisyenler), 166 akademik olmayan personel (ortaokul mezunları ulusal diplomasına sahip sürekli işçi) ve 367 lisans öğrencisi (öğrenci)] yüz-yüze yapılandırılmış bir anket uygulanmıştır. Katılımcıların çoğu etlik piliç (%63,3) ve sığır (%32,0) etini balık etine (%4,7) tercih etmiştir. Etlik piliç eti tercih eden akademisyen sayısı (%16,8), öğrenci (%52,6) ve sürekli işçi (%30,6) sayısından daha düşük bulunmuştur. Katılımcılar arasında farklı tavuk eti üretim kaynaklarının tercihi ve algısı açısından önemli farklılıklar bulunmuştur. Konvansiyonel etlik piliç etini tercih eden akademisyenlerin oranı (%68,2), öğrenci (%25,4) ve sürekli işçilerin (%6,4) oranından daha yüksek bulunmuştur. Etlik piliç beslemesinde kullanılan yem maddeleri ve/veya katkı maddeleri ile ilgili, etlik piliç eti hakkındaki medyatik bilgilerin (dezenformasyon) etkisinin, akademisyenler ve öğrenciler üzerinde çalışanlara göre daha yüksek olduğu belirlenmiştir. Çalışmanın sonuçları, eğitim seviyesi arttıkça, tavuk eti üretimi hakkındaki yanlış medya raporları nedeniyle olumsuz algının arttığını ve sonuçta tavuk eti tercihinin azaldığını göstermiştir.
Impact of Live Training on Medication Errors in a Community-Based Pharmacy Setting
Authors: Grant Morgan , Remines Jaimie , Nadpara Pramit , Goode Jean-Venable
Published: August 2020

Objective: To compare community-based pharmacy medication errors before and after a one-hour live interactive training session for both pharmacists and technicians.

Methods: A one group pre-post intervention design study was conducted in 20 community-based pharmacies in a district of a large national community pharmacy chain.  A one-hour live, interactive session was developed based on incident reports and medication error trends including medication error definition, ways in which medication errors occur, strategies for mitigating errors, information about human error, and methods and habits to improve patient safety. At least 50% of full-time staff for each of the 20 pharmacies were required to attend a training session between December 1, 2017-January 15, 2018. Participants completed a demographics survey documenting gender, age, credentials, number of years of experience, and years of service with the company. Pharmacies were categorized as low, medium or high volume based on prescription count. Medication errors were compared six months pre- and post-live education session. Data were analyzed using SAS version 9.4.

Results:   One hundred and thirty- five errors and 111 errors were reported pre-and post-live training (mean 6.85 and 5.55, p < 0.301), respectively.  Nine pharmacies were low, eight medium, and three high volume with the mean number of medication errors reported pre- and post-live training; low 4.33 vs 4.11 p<0.478, medium 9.37 vs 6.87 p<0.443, and high 7.66 vs 6.33 p<0.593, respectively. Sixty pharmacy staff (34 pharmacists, 26 technicians) attended one of the live training sessions; 73% female; most frequently reported age range 35-50 years; 23  Doctor of Pharmacy, 11  Bachelor of Science in Pharmacy, and 26 Certified Technician; and average number of years’ experience was 13.6 and average service with the company was 8.6 years.

Conclusions: A live training session for both pharmacists and technicians did not significantly decrease medication errors, but could be incorporated as an element of a medication safety program. It should be considered for implementation in other districts of this large national pharmacy chain as a part of an improved patient safety effort. 

 

Article Type: Original Research
Laser Distance Sensors Evaluation for Geomatics Researches
Authors: Khalaf Abbas Zedan , Alyasery Bashar H
Published: August 2020

In this study, an approach inspired by a standardized calibration method was used to test a laser distance meter (LDM). A laser distance sensor (LDS) was tested with respect to an LDM and then a statistical indicator explained that the former functions in a similar manner as the latter. Also, regression terms were used to estimate the additive error and scale the correction of the sensors. The specified distance was divided into several parts with percent of longest one and observed using two sensors, left and right. These sensors were evaluated by using the regression between the measured and the reference values. The results were computed using MINITAB 17 package software and excel office package. The accuracy of the results in this work was Â± 4.4mm + 50.89 ppm and Â± 4.96mm + 99.88 ppm for LDS1 and LDS2, respectively, depending on the LDM accuracy which was computed to the full range (100 m). Using these sensors can be very effective for industrial, 3D modeling purposes, and many other applications, especially that it is inexpensive and available in many versions.
Theoretical and Experimental Study for Corrosion Inhibition of Carbon Steel in Salty and Acidic Media by A New Derivative of Imidazolidine 4-One
Authors: Al-Joborry Nada Mohammed , Kubba Rehab Majed
Published: August 2020

A new imidazolidine 4-one derivative, of namly 2-[2-(4-Bromo-phenyl)-imidazo [1,2-a] pyridine-3-yl]-3-(4-nitro-phenyl)-imidazolidine-4-one (BPIPNP) was investigated as corrosion inhibitor for carbon steel in salty (3.5% NaCl) and acidic (0.5M HCl) solutions using potentiometric polarization measurements. The results revealed that the percentage inhibition efficiencies (%IE) in the salty solution (90.67%) are greater than that in the acidic solution (83.52%). Experimentally, the thermodynamic parameters obtained have supported a physical adsorption mechanism and which followed Langmuir adsorption isotherm. Density Functional Theory (DFT) of quantum mechanical method with B3LYP 6-311++G (2d, 2p) level was used to calculate geometrical structure, physical properties and inhibition efficiency parameters, in vacuum and two solvents (DMSO and H2O), all at the equilibrium geometry. The surface changes of carbon steel were studied using  Scanning Electron Microscopy SEM and Atomic Force Microscopy (AFM) techniques.
Hierarchical Structures Incorporating Carbon and Zeolite to Remove Radioactive Contamination
Authors: Al-Rahmani Altaf A. , Al-Attafi Shireen K. , Al-Nasri Salam K. , Jasim Zuhair W.
Published: August 2020

Synthesis, characterization and application of hierarchical zeolites are becoming a subject of an increasing interest among scientists and researchers. Hierarchical structures incorporating zeolites   possess secondary porosity at meso- and macrolevel to overcome problem of mass transport, which occurs with using conventional zeolites.

  In this study, the porous carbon surface was prepared by carbonization of the locally available agricultural waste of the Iraqi Nut shell (NS) using a carbonization method in a tubular furnace at 900ËšC for two hours. Hierarchicalpours structures including zeolite were prepared by the mechanical activation of the carbon surface using ultrasonication with a nanoparticles suspension of ground commercial zeolite type 4A. Zeolite was milled using 0.3-0.4 mm diameter glass balls as grinding media to prepare nanoparticles seeding, which increases the crystallization of the amorphous aluminosilica gel on the modified carbon surface during the hydrothermal method. The Product of the syntheses of zeolite 4A and the hierarchal composite material were characterized using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Nitrogen-Adsorption /desorption isotherms (BET), Energy Dispersive Spectroscopy (EDX), and Thermo Gravimetric Analysis (TGA) to determine the structure, morphology, surface area, chemical composition, and percentage weight of zeolite on carbon, respectively. The products were applied to remove the radioactive hazardous cesium isotope Cs137 from the radioactive wastewater provided by the destroyed building of Radiochemistry laboratories (RCL) in AL-Tuwaitha Nuclear Site. Gamma spectroscopy system with high purity germanium detector (HPGe) was used to measure the activity concentration for the contamination water before and after the treatment. The results showed that the activity concentration decreased from 4800 Bq/L to 186Bq/L and 100Bq/L using pure zeolite 4A and NSZ.respectively. The results also showed that the composite materials could be used effectively to remove radioactive 137Cs from a real wastewater, with ease of separation and recovery from the solution compared with  the pure zeolite 4A.
Electroluminescence of Light- Emitting Organic Semiconductor/ Europium Oxide Nanoparticle Hybrid Junction
Authors: Mohammed Hussein Riyadh , Ibrahim Omar A.
Published: August 2020

A hybrid nanoparticles light emitting diode (NPs-LED) was fabricated as layers of ITO/TPD:PMMA/ Eu2O3 / Alq3 / Al, by phase segregation method using spin coating technique. The NPs-LED hybrid device emitted light and consisted of three layers in a definite order placed on the transparent conducting oxide as an ITO substrate; the first layer was made of (N, N'-bis (3-methylphenyl) -N, N'-bis (phenyl) benzidine) (TPD) and polymethyl methacrylate (PMMA) polymers combined together. The second layer consisted of Europium (III) oxide (Eu2O3), while the third  layer was Alq3, one of the most frequently-used electron transport layers.

The electroluminescence (EL) of NPs-LED was studied with different bias voltages (20, 25 and 30V) at room temperature. Depending on the CIE 1931 color spaces, X the white light was generated at 30V and the green light at 20V. This was achieved by benefitting from the transition between deep levels in the energy gap of Eu2O3 NPs (surface state ) and magnetic dipole transition for Eu+ (5D0-3and5L6 to 7F0-6). The Current â€“ Voltage (I-V) characteristics demonstrated that the current varies with voltage and that the knee voltage value is 5 V. The EL spectrum showed a broad band emission, with a range of 350 - 700 nm. Finally, the correlated color temperature (CCT) was found to be about 7100 to 11500k.
Incorporation of Palm Fiber to Enhance the Mechanical Properties of Epoxy
Authors: Hussein Samah M
Published: August 2020

In the recent years, the work in composite industry needed new ecofriendly resources to improve the original properties of current materials. Many researches attempted to find alternative additives to be used with the current systems which provide a new material that is environmentally friendly and has better performance than the synthetic counterparts. This paper presents the study of mechanical characteristics, including bending, impact, tensile and hardness tests, of date palm fiber (DPF)/ epoxy composite. The composite plate was constructed by hand-layup technique. The filler content values (wt %) were 5%, 10%, 15% and 20%. Young's modulus, impact strength and hardness were shown to be increased with increasing fiber content. Tensile strength was increased only  using 5% and 10%, whereas it was decreased using fiber content.
Hydrochemical Evaluation of Surface and Groundwater in Khan Al-Baghdadi Area, Al- Anbar Province / West of Iraq
Authors: Hussien Sarmad Jamal , Abdulhussein Firas Mudhafar
Published: August 2020

The hydrochemical study of the surface and groundwater in Khan AL-Baghdadi  area  included interpretation of physical, chemical and biological properties of 14 wells and 6  surface water samples collected from Euphrates River.. The study covered two periods representing dry and wet periods in October 2018 and April 2019, respectively. The surface water samples were characterized as slightly alkaline, fresh water, excessively mineralized, calcium-chloride type, and hard to very hard class. While the groundwater samples were characterized as slightly alkaline, brackish water, excessively mineralized, calcium-chloride and sodium-chloride type, and hard to very hard class. The assessment of water for irrigation purposes for both water sources in the dry period showed a Sodium Adsorption Ratio (SAR) of no harmful effects, while the Soluble Sodium Percentage (Na%) demonstrated a good irrigation Water Class, except for one well with a permissible irrigation Water Class. While in the wet period, all surface and groundwater samples were of a good irrigation Water Class, except for two wells with permissible irrigation Water Class. In terms of total dissolved solids (TDS) and electrical conductivity (EC), all surface water samples for the two periods were within the permissible limits of irrigation water quality, whereas groundwater samples for the two periods showed unsuitable limits, except for three wells within the permissible limits of irrigation water quality. The microbiological tests showed that all samples  of surface and groundwater are classified as clean.
The Relationship Between Infertility and Infection with Clarithromycin Resistant Strain of Helicobacter Pylori in Iraq
Authors: Abid Shiamaa G. , Aboud Rana S.
Published: August 2020

The relationship between infertility and Helicobacter pylori infection was investigated; samples from thirty-five infertile patients (aged 20-49 years) were collected from Kamal Al-Samaraei hospital , Baghdad, Iraq during the period from the first of February until April 2018. These patients were compared with 10 apparently fertile individuals who served as a control. The study was carried out to detect the DNA of H.pylori in both serum and seminal fluid of male infertile patients and for the control group by Real-Time Polymerase Chain Reaction (RT-PCR) technique. The results revealed that there was a significant difference (P<0.01) in the detection of DNA of H.pylori between patients and control groups. thereby the percentage level of H.pylori DNA in serum was 80% and in the seminal fluid was 0 %. As a result, we strongly suggest that the infection with H. pylori plays an important role in male infertility.
Biosorption of Lead and Chromium Ions by Using Penicillium digitatum (Pers.) Sacc. from Industrial Water
Authors: Hussain Sajida Frhan , Khazaal Duaa Sameer , Hatif Zainab Hani
Published: August 2020

Some microorganisms, including fungi, are characterized by their removal efficiency and reducing the concentrations of heavy metals such as Pb and Cr from industrial water. The present study aims to estimate the efficiency of Penicillium digitatum (Pers.) Sacc. as a low-cost biosorbent in reducing Pb and Cr from industrial water with optimum biosorption conditions (acidity of 1.5 , 4, and 5; temperature of 30 Â°C). The Fourier transform infrared spectroscopy (FTIR) analysis was also used for determining the roles of the functional groups in this biosorbent. The results indicated that the highest P. digitatum efficiency values for reducing the levels of Pb and Cr were 84% and 70% , respectively, at pH of 5 after 24 h. However, this efficiency was decreased from  81% to76% at pH values of  4 and 1.5, respectively, for Pb. The removal efficiency for Cr was 56% at pH of 4  after 1h. at 30 Â°C. Also, the FTIR spectra illustrated -CH, -C-N, N-H, and =CO peaks of functional groups that may change as a result of their involvement in the adsorption process of lead and chromium.
Callus Induction and Shoot Formation for Mexican Red Bean (Phaseolus vulgaris L.) Pinto Cultivar in Vitro
Authors: Al-Saedi Rasha K. Mohammed , Abdulhalem Ansam G.
Published: August 2020

The current study aimed to adopt a method for inducing callus cells and regenerating the important common red bean using different types of growth regulators such as N6-benzylaminopurine (BAP), Naphthalene acetic acid (NAA), and Thidiazuron (TDZ). Different types of common bean pinto cultivar explants, such as  internodes, cotyledons and roots,  were inoculated on Murashige and Skoog medium (MS) provided with different combinations of plant growth regulators, including 1- BAP (5 mg/l) 2-BAP (4.5 mg/l) NAA (0.5 mg/l), 3- BAP (4.5 mg/l), and TDZ (0.1mg/l). Callus was initiated on MS culture medium supplied with 5 mg/l BAP for all explants (internodes, cotyledons, and roots) at 50, 20, and 10% respectively, while adding NAA with 0.5mg/l showed a low percentage of callus (30%) only in the internode explants. Optimum results were obtained by growing the internodes on MS medium with 4.5 mg/l BA and either 0.5 mg/l NAA or 0.1 mg/l TDZ, transplanting the derived shoots into internodes and cotyledons with 70 and 10% respectively. This study concludes that the internodes as explants have the best growth results.
A comparison of the Effects of Lemon Peel -Silver Nanoparticles Versus Brand Toothpastes and Mouthwashes on Staphylococcus Spp. Isolated From Teeth Caries
Authors: Emad Maes , Salama Khadija
Published: August 2020

Thirty one  samples of gum swabs were collected from patients with tooth caries (5-30 years old)  from the College of Science (Biology department )- University of Baghdad- Iraq for the period from October 2018 to December 2018. , The samples were transported, after inoculation in a transport media (nutrient broth), to the laboratory of the College of Science and then cultured on mannitol salt agar and  blood agar). The isolates belonging to Staphylococcus spp. were identified by biochemical tests and Vitek 2 compact system, while the more antibiotic resistant isolates were identified by using Polymerase Chain Reaction(ï´¾PCR)  and sequencing of 16SrRNA . The results showed sharp UV absorption peaks at 330 - 340nm and AFM at 56 nm. Transmission Electron Microscope (TEM) results showed that lemon silver nanoparticles (NPs) are spherical in shape. The results also demonstrated that  the silver NPs have a higher antibacterial activity with a diameter of inhibition zone that reached 16mm as compared with the common three mouthwash and toothpaste brands (Colgate, Crest and Close up) that had inhibition zone values of 5-8mm.
A Comparison Between Different Susceptibility Test Methods to Evaluate the Antibacterial Activity of Olibanum and Alum Against the "Red Complex" Periodontal Pathogens
Authors: Al-Hamdoni Sumaya A. S. M. , Al-Rawi Amera M. M.
Published: August 2020

Testing the sensitivity of periodontal pathogens requires the selection of an easier and more reliable method to be used with such anaerobic bacteria that need a long period of time for growth. Natural materials are a new era of antibacterial agents to control periodontal infections. The aims of the current study were to test the antibacterial activity of two natural agents, namely olibanum and alum, against three types of red complex periodontal pathogens and compare the application of agar diffusion and microdilution methods for testing the susceptibility. Gingival crevicular fluid from pockets with chronic infections was sampled as a source for the three types of bacteria, Porphyromonas gingivalis, Tannerella forsythia and Treponema denticola (the red complex pathogens). The samples (n= 30) were cultured on three types of media, namely Schaedler Anaerobe Agar, Tannerella forsythia (TF) agar, and Trypton Yeast extract Gelatin Volatile fatty acids and Serum (TYGVS) agar for the three types of red complex pathogens. After anaerobic growth, the isolates of red complex pathogens were identified by cultural and cellular morphological characteristics and confirmed by molecular diagnosis. The antibacterial activity of the two natural materials was tested by agar (disk and well) diffusion and microdilution method (spectrophotometer- and resazurin- based). Ciprofloxacin (CIP) and chlorhexidine (CHX) were used as controls. Minimal Inhibitory Concentrations (MICs) of the four reagents (olibanum, alum, CIP, and CHX) were determined on the three types of bacteria. MIC values by each susceptibility method were compared and analyzed statistically at p- value â‰¤ 0.05. The results showed that resazurin- based microdilution method was the easiest and simplest approach which gave reliable reads. MIC values of the four regents differed from a method to another and from one bacterium to another. Statistically, there were no significant values among these differences, except for olibanum which was statistically more significant than the other reagents.
Rare neurohypophyseal tumor presenting as giant pituitary macroadenoma with cavernous sinus invasion – A case report and review of literature
Authors: Mohan Akhil , Kannoth Prakasan , Unni Chandramohan , Jose Byjo Valiyaveetil , Parambil Rajeev Mandaka , Nandeesh B. N.
Published: August 2020

Background:

Granular cell tumors (GCTs) of the pituitary are rare tumors of posterior pituitary that can present as giant pituitary macroadenoma due to the slow indolent growth of the tumor. We are reporting this case due to the rarity of GCT and usually these tumors are confined to the suprasellar region since they are arising from the pituitary stalk. GCTs that attain such giant size with cavernous sinus invasion are still rarer.

Case Description:

A 38-year-old female who presented with progressive deterioration of vision and on evaluation by magnetic resonance imaging showed a giant pituitary macroadenoma with bilateral cavernous sinus invasion. The patient underwent pterional craniotomy and near-total excision of the lesion was done due to high vascularity and firmness of the tumor. Histopathology examination of the lesion showed spindle to globular cells with granular cytoplasm and was reported as GCT of the pituitary.

Conclusion:

GCTs are WHO grade1 non-neuroendocrine tumors arising from neurohypophysis and infundibulum. Complete excision is usually difficult due to the high vascularity, firm consistency, and local invasion of the tumor to the cavernous sinus and optic apparatus.
Meningioma-related subacute subdural hematoma: A case report
Authors: Matos Daniela , Pereira Ricardo
Published: August 2020

Background:

Meningiomas are the most frequent benign head tumors, although spontaneous hemorrhage is a rare form of presentation of such lesions. Of all possible bleeding locations associated with them, the subdural space is one of the most uncommon, with very few cases reported worldwide.

Case Description:

A middle-aged woman presented with progressively worsening left-sided headache, initiated 2 weeks before, with no other complaints, denying any previous head trauma. Head computed tomography revealed a subacute left hemisphere subdural hematoma and left frontal, suggestive of meningioma on magnetic resonance imaging. Surgical treatment was performed with hematoma evacuation and lesion removal. Neuropathology showed a transitional meningioma with signs of hemorrhage. After surgery, no neurological deficits were registered, and headache abated.

Conclusion:

As we could not identify any other cause for the subacute subdural hematoma, hemorrhage from the meningioma was the most probable cause, and thus, we decided to remove it along with clot evacuation. Based on neuropathological findings, we propose an alternative mechanism for this spontaneous hemorrhage from the meningioma, involving the place where the periphery of the lesion insertion, the dura mater as the origin of the hemorrhage. Knowledge of this association could help define the best treatment in such cases.
Intramedullary mature teratoma of spinal cord: A rare tumor with review of literature
Authors: Acharya Ashish , Grewal Sarvpreet Singh , Sobti Shivender , John Paul Sudhakar , Bind Ravindra Kumar , Bhardwaj Maneesh Kumar , Mathews Shefin J.
Published: August 2020

Background:

Spinal teratomas are rare in adults. The clinical findings are nonspecific, reflecting only in the intramedullary location of these lesions. The potential differential diagnosis for intramedullary spinal teratomas include schwannomas, dermoids, epidermoids, and neurofibromas.

Case Description:

A 25-year-old male presented with RLE weakness (iliopsoas/quadriceps [4/5], and extensor hallucis longus/dorsiflexor [0/5]) and urinary incontinence. As the contrast, MR showed a heterogeneous intramedullary lesion with well-defined edges located at the T12-L1 level, the patient underwent a focal laminectomy for gross total tumor excision. Pathologically, it proved to be a mature teratoma.

Conclusion:

Teratomas should be considered among the differential diagnostic considerations for intramedullary spinal cord lesions. Although gross total resection is preferred, these lesions have a low recurrence rate, and therefore, partial removal is also valid, where lesions are densely adherent to adjacent neural structures.
Case report of hyperacute edema and cavitation following deep brain stimulation lead implantation
Authors: Fenoy Albert J. , Conner Christopher R. , Withrow Joseph S. , Hocher Aaron W.
Published: August 2020

Background:

Postoperative cerebral edema around a deep brain stimulation (DBS) electrode is an uncommonly reported complication of DBS surgery. The etiology of this remains unknown, and the presentation is highly variable; however, the patients generally report a good outcome.

Case Description:

Here, we report an unusual presentation of postoperative edema in a 66-year-old female who has bilateral dentatorubrothalamic tract (specifically, the ventral intermediate nucleus) DBS for a mixed type tremor disorder. Initial postoperative computed tomography (CT) was unremarkable and the patient was admitted for observation. She declined later on postoperative day (POD) 1 and became lethargic. Stat head CT scan performed revealed marked left-sided peri-lead edema extending into the centrum semiovale with cystic cavitation, and trace right-sided edema. On POD 2, the patient was alert, but with global aphasia, right-sided neglect, and a plegic right upper extremity. Corticosteroids were started and a complete infectious workup was unremarkable. She was intubated and ultimately required a tracheostomy and percutaneous gastrostomy tube. She returned to the clinic 3 months postoperatively completely recovered and ready for battery implantation.

Conclusion:

While this is an unusual presentation of cerebral edema following DBS placement, ultimately, the outcome was good similar to other reported cases. Supportive care and corticosteroids remain the treatment of choice for this phenomenon.
Teacher Professional Development Program in Indonesian Public Elementary Schools: Developing a Mini Course in Basic EYL (English for Young Learner) Teaching Skill
Authors: Rohqim Al Ikhwan Fadqur
Published: August 2020

The teaching of English in Elementary Schools in Indonesia have been conducted for decades, but based on literature review and preliminary study, most of the teachers teaching English in Public Elementary Schools, both in the regular local content subject or English extracurricular activities have inadequate English and English teaching skills. In-service training was proposed due to the teachers’ time availability. The training activities will be conducted after school hours and taken place in their schools. The development of the training employs a research and development research method comprising the preliminary study, class observations, interview, the development of materials, instructional media and evaluation that will be validated by the experts. After the expert validation stage, the products which have been revised based on the experts’ suggestions are then applied in the field validation. The last stage is the revision of the products based on field validation. This product is projected to be an example of a teacher professional development program for teachers teaching English in Elementary School.
Foreign Language Listening Anxiety in an Academic Listening Class
Authors: Nurul Arini , Dewi Nita Sari Narulita , Nurhaedin Enjang , Rosmala Dewi
Published: August 2020

In the process of teaching listening, anxiety is believed as a negative factor contributing to the students’ poor listening comprehension and quite possibly the affective factor that the most persistently hinders the learning process. Thus, investigating its existence and delving its factors become salient in order to help the students overcome their listening learning barriers. This present study attempts to depict the condition of the students’ listening anxiety in an Academic Listening (AL) class in an Indonesian tertiary context. 20-items of Foreign Language Listening Anxiety’s (hereafter, FLLA) questionnaire were administered to 97 students taking that course. Having finished analyzing the levels of students’ listening anxiety, in-depth interviews were conducted to four students who were considered having high listening anxiety to disclose the underlying factors. The research result revealed three pivotal issues; a) 54.6% of the students had a relatively high level of listening anxiety, 18.5% had moderate listening anxiety, and 26.8% had a low level of listening anxiety; b), 75% of the chosen measured items showed an extreme level of the students’ listening anxiety, and c) the major factor contributing the listening anxiety was inadequate listening proficiency involving the inability to deal with the rapid speech rate and range of lexical choices.
Historia y clima
Authors: Nomberto Bazán Víctor Raúl , Ruiz Sánchez Jorge André
Published: August 2020

El presente artículo analiza el cambio climático desde la perspectiva histórica. Se inicia, por tanto, con una relación sobre los antecedentes y la evolución que ha tenido el enfoque adoptado por académicos y autoridades al respecto. Todo ello está enmarcado dentro de los retos que plantea el enfrentar las consecuencias que traerá para la población humana el calentamiento global, tomando especial interés en el caso peruano. Con esta finalidad, se busca enfatizar en los aspectos más urgentes a solucionar y las propuestas que se han realizado en torno a la problemática. Finalmente, se discuten las medidas tomadas durante las reuniones llevadas a cabo por diferentes países y organismos internacionales para generar compromisos que permitan la viabilidad de reducir la alteración del clima y sus efectos.

 

DOI: https://doi.org/10.31876/sl.v1i1.3
Percepción cultural de los pobladores sobre el Programa Social Juntos en el Valle del Mantaro
Authors: Chanca Flores Aparicio , Ávila Mendoza Judith , Aliaga Caynicela Morelia Yolanda
Published: August 2020

Juntos es un programa de transferencia condicionada que forma parte de la estrategia nacional Crecer; está orientado a mejorar la calidad de vida de los peruanos más necesitados e impulsar el desarrollo del capital humano, brindando mejores servicios de salud, educación y nutrición. Este estudio tuvo como objetivo conocer la percepción cultural de los pobladores no beneficiarios sobre el Programa Social Juntos en el Valle del Mantaro. La investigación fue de tipo básico y nivel descriptivo. Las unidades de análisis consideradas fueron los pobladores no beneficiarios, tanto de género masculino como femenino, de las cuatro provincias que conforman el Valle del Mantaro: Concepción, Chupaca, Huancayo y Jauja. Mediante un muestreo probabilístico y de corte transversal, se seleccionó una muestra de 382 personas mayores de 15 años, a quienes se les administró un cuestionario tipo escala de Likert, con una fiabilidad de 0.86 según el alfa de Cronbach. Para el procesamiento y análisis de datos, se utilizó la estadística descriptiva, obteniendo como resultado que las percepciones culturales de los pobladores no beneficiarios sobre el Programa Juntos son positivas; la mayoría de los encuestados perciben aspectos positivos en la ejecución de Juntos, pues este viene repercutiendo en el cambio de actitudes y costumbres de los beneficiarios referidas a las actividades de nutrición, salud y educación.

 

DOI: https://doi.org/10.31876/sl.v4i1.49
Creencias ambientales de estudiantes de Sociología de la Universidad Nacional del Centro del Perú
Authors: Álvarez Tolentino Daniel , Sánchez Chumpitasi Patricia
Published: August 2020

La situación ambiental es desde hace años una preocupación para las entidades públicas y privadas de nuestro país, las universidades desde su rol social vienen implementando estrategias de educación ambiental ante tal crisis. Por ello, la Facultad de Sociología de la Universidad Nacional del Centro del Perú (UNCP) implementó en su currícula, cursos ambientales complementados con cursos de ética y filosofía. El presente estudio tiene por objetivo medir las creencias ambientales de los estudiantes de pregrado con el fin de evaluar el impacto de la estrategia empleada. Para ello, se aplicó la escala New Ecological Paradigm (NEP) a 214 estudiantes matriculados de todos los semestres durante el periodo académico 2017-2018. Los resultados mostraron una mayor predominancia de las creencias ecocéntricas (=3.9±0.72), demostrando que el enfoque ecosistémico de la facultad viene fortaleciendo la conciencia ambiental de sus estudiantes de pregrado.

 

DOI: https://doi.org/10.31876/sl.v4i1.51
El diseño de una estrategia de evaluación de los aprendizajes de niños y niñas con características diversas: un aporte para transformar el aula
Authors: Chávez Rincón Berenice
Published: August 2020

En el presente artículo, exponemos algunos resultados de un trabajo de investigación que revelan el diseño de una estrategia de evaluación para los aprendizajes de niños y niñas con características diversas, a partir de la implementación del diseño universal para el aprendizaje (DUA) y sustentado desde la metodología cualitativa de tipo evaluativo-proyectivo. Me propongo exponer los hallazgos y conclusiones desde las cuatro categorías de análisis: evaluación educativa, evaluación de los aprendizajes, estrategias de aprendizaje, población con características diversas y el enfoque metodológico planteado por el DUA. La información recogida demostró que para los docentes, no hay claridad ni estandarización en los instrumentos utilizados para evaluar a los estudiantes; predomina el uso de la evaluación tipo sumativa mas no formativa; en el proceso de enseñanza-aprendizaje, se evidencia que, aunque hay una planeación de clase, no se reflejan los criterios y procedimientos flexibles de la evaluación educativa desde una perspectiva inclusiva. Se concluyó que el DUA puede ser una herramienta clave para hacer uso de diferentes estrategias pedagógicas y flexibilizar el currículo; y el diseño de una estrategia metodológica de evaluación puede universalizar la práctica de aula y disminuir las barreras de aprendizaje de la población de inclusión.

 

DOI: https://doi.org/10.31876/sl.v4i1.52
Naturaleza y cultura para el desarrollo del ecoturismo en la provincia de Concepción, Junín, Perú
Authors: Maldonado Oré Edith Mercedes
Published: August 2020

La cultura y la naturaleza son insumos muy importantes para el ecoturismo, y estos son precisamente los recursos con los que cuentan los distritos de Concepción, Matahuasi, Santa Rosa de Ocopa y Aco. La identificación de los recursos culturales y naturales y la relación del hombre con su entorno fue el objetivo de esta investigación. El método usado fue el cualitativo; la técnica, la entrevista, con la ficha de levantamiento de datos culturales y naturales como instrumento. Con los recursos identificados en Matahuasi, se puede practicar el senderismo, el turismo de paisajes, la recreación, la observación de flora y fauna, el agroturismo, la educación ambiental, el turismo vivencial y gastronómico. En Aco, se puede desarrollar el turismo vivencial, el agroturismo y el turismo de paisajes. En Santa Rosa de Ocopa, el turismo cultural, el agroturismo, el turismo vivencial y el senderismo. En Concepción, el turismo cultural, el turismo vivencial, el agroturismo y el turismo de paisajes. Aprovechando el potencial de los 4 distritos, podría implementarse un circuito ecoturístico, el cual tendría como cabecera a la ciudad de Concepción, por contar esta con los servicios adecuados para el turismo. Este proyecto permitiría mejorar la calidad de vida y la sostenibilidad económica de la población asentada en los referidos distritos.

 

DOI: https://doi.org/10.31876/sl.v4i1.50
Hábitos de estudio y estrés académico en estudiantes de una institución educativa pública de Puerto Maldonado
Authors: Estrada Araoz Edwin Gustavo
Published: August 2020

El objetivo de la investigación fue determinar la relación que existe entre los hábitos de estudio y estrés académico en estudiantes del quinto grado de educación secundaria de una institución educativa pública de Puerto Maldonado. El enfoque fue cuantitativo, el diseño no experimental y el nivel correlacional. La muestra fue conformada por 121 estudiantes, cantidad que fue determinada mediante un muestreo probabilístico. Los instrumentos de recolección de datos fueron el Inventario de Hábitos de Estudio CASM-85, revisión-2014 y el Inventario SISCO de Estrés Académico. Los resultados indican que existe una relación inversa y significativa entre los hábitos de estudio y el estrés académico de los estudiantes puesto que el coeficiente de correlación rho de Spearman fue de -0,365 con un p-valor inferior al nivel de significancia (p<0,05). Se concluyó que adecuados hábitos de estudio de los estudiantes están relacionados con bajos niveles de estrés académico.
La investigación en la Facultad de Educación Análisis en el contexto de la acreditación universitaria
Authors: Tarazona Pérez Filomeno , Aliaga Isabel , Porras Karim
Published: August 2020

Reportamos el estado de la cuestión en investigación en una muestra estratificada de 242 estudiantes del VI, VIII y X  semestre de la Facultad de Educación, Universidad Nacional del Centro del Perú, generalizable a una población de 687, sobre las dimensiones del perfil de la investigación formativa y de final de la carrera, experiencia de investigación, gestión de la propiedad intelectual, la conducta responsable y la percepción del desarrollo de la investigación pedagógica, contextualizados en los estándares de la Acreditación Universitaria; asimismo se ha encuestado a 32 profesores que enseñan investigación o están directamente implicados en la función.