bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sakarya Üniversitesi Endüstri Mühendisliği bölümünde uygulamalı mühendislik deneyimi modeli ve öğrenciler üzerindeki etkileri
Authors: ÇAĞIL Gültekin , CENGİZ TOKLU Merve 
Published: March 2018

Dünya’da ve Türkiye’de, üniversite-sanayi işbirliği
kapsamında çeşitli işbirliği faaliyetleri sürdürülmektedir. Uygulamalı eğitim
modeli bu faaliyetlerin başında gelmektedir ve bu model üniversiteler
tarafından üretilen teorik bilginin gerçek dünya problemlerinde kullanılmasını
amaçlar. Bununla birlikte, uygulamalı eğitim programına katılan öğrencilerin
gelecek kararı, özgüven, mesleki öz
yeterlilik ve kaygı gibi konularda olumlu bir şekilde ilerlemeleri beklenmektedir.
Bu çalışmada, Sakarya Üniversitesi Mühendislik Fakültesi tarafından
geliştirilen ve ilk uygulaması Endüstri Mühendisliği bölümünde gerçekleştirilen
Uygulamalı Mühendislik Deneyimi Eğitimi (UMDE) programı açıklanmıştır. Aynı
zamanda, UMDE programına katılan ve katılmayan öğrenciler arasındaki fark
istatistiksel olarak araştırılmıştır.
Araştırma sonucunda UMDE programına katılan ve katılmayan öğrenciler
arasında gelecek kararı, mesleki öz yeterlilik ve kaygı seviyelerinde
istatiksel olarak anlamlı bir farklılık olduğu belirlenmiştir.
Gömülü çelik boru sistemlerinin zaman tanım alanında yapısal analizi
Authors: ÇOBAN Serkan , ÇERİBAŞI Seyit 
Published: March 2018

İnsanların temiz suya erişimini sağlayan içme suyu boru hattı
tesisleri toplumun yaşam kalitesini arttıran can damarlarıdır. Kentlerde nüfus
artışı ve sanayileşmenin gelişimine paralel olarak temiz suya erişim çok daha
önemli bir hale gelmiştir ve içme suyu boru hatlarındaki herhangi bir
aksalıklık toplumsal ve ekonomik hayatı olumsuz etkilemektedir. Bakım onarım
çalışmaları, hat deplase çalışmaları ve diğer altyapı tesislerinin imalatı
sırasında meydana gelen operasyonel hasarlar içme suyu tesislerinin işlevinin
sürdürememesine neden olur. Bu sistemlerde önemli hasarlar oluşturan bir başka
etken ise doğal afetlerdir ve bunların en yıkıcısı depremlerdir. Depreme
dayanıklı boru hattı imalatı veya deprem öncesinde boru hatlarının bakım, onarım ve
güçlendirilmesinin yapılması için yapısal analizlerin yürütülmesi son derece
önemlidir. Bu çalışma kapsamında içme suyu sistemlerinde sık karşılan zemine
gömülü basınçlı çelik boru hattı, sonlu elemanlar yazılımı ANSYS Workbench
V17.1 kullanılarak üç boyutlu olarak
modellenmiş ve zaman tanım alanında sismik analizi yapılmıştır. Yapılan
analizlerde derinlik ve boru çapı parametreleri değiştirilerek çelik boruda
meydana gelen gerilme ve deplasman
miktarları araştırılmıştır. Ayrıca, uzun süren bu tür parametrik analizlerin
pratik olarak yürütülebilmesi için pratik bir yöntem geliştirilip
uygulanmıştır.
Morbidity and mortality pattern of very low birth weight infants admitted in SNCU in a South Asian tertiary care centre
Authors: S. Kabilan , Kumar Mekalai Suresh 
Published: March 2018

Background: Around 4-8% of all live births are very low birth weight (VLBW) infants. In India currently 8 million VLBW infants are born each year which constitutes 40% of global burden the highest for any country. The present study was done to determine frequency of disease, complications, survival rate and risk factors for morbidity and mortality in VLBW babies.Methods: Between October 2016 and September 2017, we did a cross-sectional retrospective study at level three SNCU with >98% inborn admissions and about more than 10000 deliveries per year. The American Academy of Pediatrics protocol for neonatal resuscitation was followed for the management of VLBW. Data were entered in predetermined proforma and statistical analysis was done.Results: There were 154 registered cases of VLBW [75 females (48.7%) and 79 males (51.3%)]. The mean birth weight=1.198 (SD=0.211). The mean gestational age in weeks was 31.9 (SD=3.095). Majority of them were in the gestational age 33-36 weeks (n=68, 44.2%), small for gestational age (n=89, 57.8), delivered through normal vaginal delivery (n=95, 61.7%), singletons (n=126, 81.8%), inborn (n=152, 98.7%), maternal age between 21-30 (n=95, 61.6%), clear amniotic fluid (n=137, 89%), on antenatal steroids (n=59, 38.3%), maternal disease were present in 55 mothers (33%) and gestational hypertension being more common (n=14, 9.6%). Majority of babies had Respiratory Distress Syndrome (n=56, 33.6%), birth asphyxia (n=54 32.4%) and sepsis (n=46, 27.6%). Mortality of 40.3% (n=62) observed in present study. Forty three babies with RDS, twenty babies with asphyxia and eight babies with sepsis expired.Conclusions: Multiple regression analysis with adjusted estimates of odds ratio showed that very low birth weight, low Apgar score at 5 minute, intubation and mechanical ventilation were predictors of outcome of VLBW babies. Birth weight and mechanical ventilation were significant predictors of the outcome of ELBW babies.
The relationship between CA repeat polymorphism of the <i>IGF-1</i> gene and the structure of motor skills in young athletes
Authors: Karpowicz Krzysztof , Krych Katarzyna , Karpowicz Małgorzata , Nowak Witold , Gronek Piotr 
Published: March 2018

The map of candidate genes that can potentially affect physical fitness becomes larger every year, and that are associated with such aspects as respiratory and cardiovascular stability; body build and composition – especially muscle mass and strength; carbohydrate and lipid metabolism; response to training; and exercise intolerance. The aim of this study was the analysis of the determination by CA repeat polymorphism of the P1 promoter of the IGF1 gene the structure of motor skills in the two groups of polish young athletes in 2011-2013. In this study, 350 young sportsmen representing different sports disciplines were examined (age = 15.5 ± 0.5 years), by genotyping the IGF1 gene and determining the structure of motor skills using the International Physical Fitness Test (IPFT) battery. Analysis of the multiple stepwise regression, used to determine the impact of the investigated motor skills on the indicator of the overall physical fitness, measured by the total score of the International Physical Fitness Test (IPFT), shows some regularity related to the character of the IGF1 gene polymorphism. It can be concluded that in the case of two groups of young boys athletes practicing various sports disciplines (kinds of physical exercise) have similar associations between CA repeat polymorphism of the P1 promoter of the IGF1 gene and the level of motor effects. Our results suggest that this polymorphism may be a genetic marker of the physical performance phenotype. We demonstrated that CA repeat polymorphism of the P1 promoter of the IGF1 gene in the groups who were homozygous and noncarriers was associated with strength predispositions. In the group who were heterozygous speed-strength aptitudes
Considerations and Pitfalls in Selecting the Drug Vehicles for Evaluation of New Drug Candidates: Focus on in vivo Pharmaco-Toxicological Assays Based on the Rotarod Performance Test
Authors: Matias Mariana , Silvestre Samuel , Falcão Amílcar , Alves Gilberto 
Published: March 2018

Purpose - During the discovery and development of new drugs, compounds with low aqueous solubility pose special challenges in their pharmacological evaluation and, therefore, the selection of appropriate vehicles to administer the compounds of interest is determinant for the quality of the results generated during the in vivo non-clinical studies. This work aimed to evaluate the motor deficit (as a surrogate of neurotoxicity) of several administration/delivery vehicles through the rotarod performance test. Methods - Trained male CD-1 mice were intraperitoneally administered with the following vehicles: dimethyl sulfoxide (DMSO), aqueous sodium chloride (NaCl) 0.9%, aqueous carboxymethylcellulose (CMC) 0.5%, polyethylene glycol (PEG)-400, propylene glycol (PG), and solutions of these vehicles containing 5% and 10% DMSO. Results - It was observed that the aqueous vehicles (NaCl 0.9% and CMC 0.5%) did not affect the performance of the animals on the rod. On the other hand, a vehicle consisting solely of DMSO led to significant motor impairment and only a small improvement was recorded over time. Additionally, a strong neuromotor toxicity was observed in the early evaluation points of the experiment using vehicles constituted by PG and PEG-400 or by mixtures of PG/DMSO (5% and 10%) and PEG-400/DMSO (5% and 10%). Conclusion - This study provides useful data about the neurotoxicity inherent to several vehicles frequently used in non-clinical pharmaco-toxicological assays, aiming to draw especial attention to the need of a careful selection of drug vehicles in order to avoid the impact of such confounding variables on the accuracy of the results and in decision-making processes. This article is open to POST-PUBLICATION REVIEW. Registered readers (see “For Readers”) may comment by clicking on ABSTRACT on the issue’s contents page.
Educación a distancia vía videoconferencia
Authors: Mascheroni Elena , Paulós Víctor 
Published: March 2018

La necesidad de extender cursos y carreras de nivel terciario al interior del país es una realidad inobjetable y advertida por todos. No obstante, pocos han sido los movimientos educativos tendientes a abordar esta problemática. La centralización de las actividades educativas terciarias en Montevideo hace que el interior del país esté vacío, en buena parte, de profesionales para dicho nivel. Esta innovación intenta aportar algunos elementos básicos a través de la implementación del dictado de un curso regular de "Educación a distancia vía videoconferencia", colaborando en eliminar las barreras anteriormente expuestas y fomentando el abordaje y profundización de esta temática tan trascendente para la mitad de la población del país y para el país todo.
A LOHAS szegmens mérete és jellemzői Magyarországon
Authors: Szakály Zoltán , Pető Károly , Popp József , Jasák Helga 
Published: March 2018

Az 1990-es évekig a marketing fókuszában azok a cserefolyamatok álltak, amelyekben a hatalom birtokosa a termelő volt. Az erőforrások korlátozottságának és a környezeti kihívásoknak a felismerésével, a harmadik évezred elején olyan globális kérdések foglalkoztatják a marketing szakembereket, mint a fenntartható fejlődés és a fenntartható fogyasztás. Kutatásunk célja a fenntartható értékrend szerinti életstílus elemzésével meghatározni a magyarországi LOHAS fogyasztói csoport nagyságát, melyet három lépésben valósítottunk meg. Elsőként a fenntartható értékrend hazai megjelenését vizsgáltuk faktorelemzés segítségével. Ezt követően elvégeztük a magyar fogyasztók értékrend alapú életstílus szegmentációját k-means klaszterezési eljárás segítségével, végül pedig további szegmentációval megbecsültük a LOHAS értékek iránt legelkötelezettebb fogyasztói csoport nagyságát. Célkitűzésünk volt továbbá, hogy eredményeinket összehasonlítsuk Rácz (2013) azonos módszertannal végzett tudományos munkájának legfontosabb megállapításaival. A kutatás célkitűzéseinek megvalósítására egy 1000 fős országos reprezentatív kérdőíves megkérdezést indítottunk 2013 szeptemberében Magyarországon. Az értékorientált életstílus kutatás során 25 életstílus-állítást fogalmaztunk meg. A 25 állítás 5 tényező mentén került kialakításra, amelyek a következők voltak: környezettudatos értékek, egészségtudatos értékek, etikus értékek, autentikus értékek, individualista értékek. Eredményeink szerint a magyar fogyasztók értékrendjében jelen vannak a fenntarthatóság irányába mutató jellemzők, és azok hat értékkategóriába különülnek el: individualista értékek, autentikus értékek, környezettudatos értékek, etikus kompetenciaértékek, egészségtudatos értékek, etikus vállalati értékek. Az értékdimenziók közül az autentikus értékek, az egészség- és környezettudatosság, valamint az etikus vállalati magatartás meghatározó jelentőségűek a magyar lakosság számára. A fenntartható értékrend mentén öt értékalapú szegmentumot tudtunk elkülöníteni, ezek név szerint az Idősödő közömbösek (16,4%), a Fiatal trendkövetők (32,1%), a Fiatal környezettudatosak (18,6%), az Etikus hagyománytisztelők (22,6%) és a Csalódott pesszimisták (10,3%). A legnagyobb klaszter, a Fiatal trendkövetők csoportja körvonalazza leginkább a LOHAS fogyasztók életstílusának jellemzőit. A szegmens azonban nem tekinthető teljes egészében a LOHAS értékek iránt elkötelezett fogyasztói csoportnak. A legnagyobb heterogenitást az etikus kompetenciaértékek mentén mutatják a Fiatal trendkövetők, ezért szükségesnek tartottuk a csoport további szegmentálását a legelkötelezettebb LOHAS fogyasztók arányának meghatározása érdekében. Az etikus kompetencia- jellemzőket leginkább felülértékelő harmadik alklaszter feleltethető meg a magyar LOHAS fogyasztói csoportnak. Eredményeink alapján arányuk 8,7% a magyar lakosságon belül, amely lényegében megegyezik Rácz (2013) megközelítően 8,0%-os csoportméretével.
A vendégelégedettség/elégedetlenség és panaszkezelés a magyar házon kívüli étkezési szektorban
Authors: Lehota József , Gyenge Balázs , Komáromi Nándor , Lehota Zsuzsa , Rácz Georgina , Horváth Ádám , Könyves Erika , Törőné Dunay Anna 
Published: March 2018

A magyar éttermi látogatók többsége viszonylag magas elégedetlenségi szinttel rendelkezik, viszonylag magas az egy főre jutó átlagos panasz-okok, elégedetlenségi okok száma (2,51%), különösen igaz ez a 3. számú szegmensre (alacsony lojalitás, magas panaszhajlandóság, 2,6), illetve a 4. számú szegmensre (magas lojalitás, magas panaszhajlandóság, 2,7). A magas panaszhajlandóság ellenére az éttermi személyzetnek adott szóbeli és dokumentált írásbeli panaszok aránya (főleg az utóbbi) alacsony, így a vendégelégedetlenség okai döntő részben rejtve maradnak. A panaszkifejezés általános módja a negatív szájreklám, illetve a borravaló csökkentése és elhagyása. Az éttermi szolgáltatások színvonala növelésének és a vendégelégedettség javításának a lojalitás erősítésének elengedhetetlen módja a panaszmenedzsment-rendszer fejlesztése, a panaszok dokumentálása és hatékony kezelése. Fontos a panaszmenedzsment rendszerhez kapcsolódó éttermi személyzeti ösztönzés is. Ezen rendszer hatékony kiépítését jelentősen elősegítheti az éttermek és vendéglők jól elvégzett vendégszegmentálása és az arra épülő termék és szolgáltatás kifejlesztése.
JEL-kód: D12
Do Precision Chemical Amendment Applications Impact Sodium Movement in Dryland Semiarid Saline Sodic Soils?
Authors: Kharel Tulsi P. , Clay David E. , Reese Cheryl , DeSutter Thomas , Malo Doug , Clay Sharon 
Published: March 2018

Core Ideas
Worldwide, salinity and sodicity problems in the dryland systems are increasing.Standard restoration methods created for irrigated systems may not be appropriate in dryland systems.Bypass water flow that occurs in northern Great Plains saline/sodic soils may impact restoration success.New approach EC/SAR ratio to assess saline and sodic soil behavior.
Expanding sodicity and salinity problems have placed many northern Great Plains (NGP) soils at the sustainability tipping point. This study assessed the impact of chemical restoration on water and salt transport in undisturbed soil columns collected from three hillslope model landscape positions. The backslope (Redfield), footslope (White Lake), and toeslope (Pierpont) soils had moderate (3.27 ± 0.59), high (7.3 ± 3.34), and very high (13.29 ± 3.2) sodium adsorption ratio (SARe) values, respectively. The soils were treated with KBr and one of four soil amendments (none, H2SO4, CaSO4, and CaCl2). The rapid movement of Br− through the columns suggested that bypass water flow occurred. In addition, a comparison with widely used salinity models (final EC = 0.8 × initial EC/pore volume [PV]) underestimated the leaching requirements by 69, 79, and 41% in the backslope, footslope, and toeslope soils. In the footslope soils with high SAR values, H2SO4 was more effective at promoting Na+ leaching than gypsum or CaCl2. However, in back slope and toeslope soils with moderate and very high SAR values, the chemical amendments were not, and were equally effective at facilitating Na+ leaching, respectively. These findings suggest that chemical amendments should target treatments to problem areas, and that bypass flow can influence their effectiveness. The LOESS regression model suggested that the electrical conductivity (ECe)/SARe ratio was useful for assessing Na+ risks, and that to maintain a water flow rate of 1 mm h−1 in a soil with a SARe value of 1, an ECe value of ≥2 was required.
Recurrent Changes of Weed Seed Bank Density and Diversity in Crop—Livestock Systems
Authors: Leon Ramon G. , Wright David L. 
Published: March 2018

Core Ideas
Crop phase can be used to modify weed diversity.Grazing in sod‐based rotations decreased Palmer amaranth seed bank.Weed seed banks respond rapidly to crop phase within diverse rotations.
Weeds are important biodiversity components in agroecosystems, but weed competition with cash crops requires farmers to manage weeds, limiting biodiversity within agricultural fields. Crop rotation increases weed diversity, but weeds are still managed in all cash crop phases so yields are not negatively affected. In our research, a bahiagrass (Paspalum notatum Flüggé)–bahiagrass–peanut (Arachis hypogaea L)–cotton (Gossypium hirsutum L.) rotation exhibited recurrent changes in weed seed banks. The bahiagrass crop phases increased, whereas peanut and cotton phases decreased weed density and diversity. Increasing weed seed banks in bahiagrass did not negatively impact the cash crops peanut and cotton. Furthermore, including grazing in the rotation did not affect overall weed seed banks, but caused a 75% reduction in Palmer amaranth (Amaranthus palmeri S. Watson) populations, the most problematic weed species in peanut and cotton. Our results indicate that grazing bahiagrass will promote weed diversity and suppress Palmer amaranth, resulting in better weed management in the peanut and cotton rotation crops.
Change in Soil Organic Carbon after Five Years of Continuous Winter Wheat or Switchgrass
Authors: Chatterjee Amitava , Long Daniel S. , Pierce Francis J. 
Published: March 2018

Core Ideas
Soil carbon sequestration under switchgrass depends on precipitation in semiarid regions.
Changes in soil C were limited to the surface soil (15 cm) under switchgrass.
Switchgrass and continuous winter wheat had similar biomass and soil carbon.
Perennial grasses have been promoted to supply cellulose for ethanol production but possible consequences on soil organic carbon (SOC) should be assessed before adoption in a given region. Specific objectives were to (i) compare aboveground biomass C production and depth distribution of SOC content of continuous winter wheat (Triticum aestivum L.) and switchgrass (Panicum virgatum L.), (ii) determine the contribution of switchgrass to SOC, and (iii) characterize soil C inventories under each crop across a wide range of precipitation regimes. A 6‐yr (2008–2013) field study with winter wheat and switchgrass ‘Blackwell’ was conducted in northeastern Oregon. Solid set sprinkler irrigation was used to create a productivity gradient of low, medium, and high precipitation levels. The contribution of switchgrass to SOC was identified with δ13C measurements. Winter wheat had significantly higher 5‐yr‐average aboveground biomass C production than switchgrass across precipitation levels and winter wheat under high precipitation produced significantly higher aboveground biomass C than medium and low precipitation. After 5‐yr of cropping, SOC accrual in the 0‐ to 15‐cm depth was significantly higher under winter wheat than switchgrass in each precipitation regime. Results of δ13C indicated switchgrass contributed 7.9, 8.5, and 12.9% to profile SOC at low, medium, and high precipitation levels. Soil organic carbon in dry cropland is resistant to a shift in crop species. Switchgrass does not increase SOC more than continuous winter wheat in dry cropland of the semiarid Pacific Northwest.
The role of decentralized municipal desalination plants in removal of physical, chemical and microbial parameters from drinking water: a case study in Bushehr, Iran
Authors: Karbasdehi Vahid Noroozi , Dobaradaran Sina , Soleimani Farshid , Arfaeinia Hossein , Mohammadi Mohammad Javad , Keshtkar Mozhgan , Mirahmadi Roghayeh 
Published: March 2018

Abstract
The aim of this study was to evaluate the role of decentralized municipal desalination plants in removal of physical, chemical and microbial parameters from drinking water in Bushehr, Iran and compare the quality of outlet water with guidelines for drinking water. Fifty samples were taken from 10 decentralized municipal desalination plants (five times from every station). The mean values of physical, chemical and microbial parameters in outlet water were electrical conductivity (322.08 μS/cm), turbidity (0.0 NTU), pH (6.84), alkalinity (61.2 mg/L), carbonate (0 mg/L), bicarbonate (61.2 mg/L), total hardness (82.96 mg/L), calcium hardness (73.8 mg/L), magnesium hardness (18.96 mg/L) as CaCO3, calcium (29.52 mg/L), magnesium (4.72 mg/L), residual chlorine (0.37 mg/L), chloride (25.61 mg/L), TDS (161.04 mg/L), iron (0.045), fluoride (0.167 mg/L), nitrate (1.71 mg/L), nitrite (0.0026 mg/L), sulphate (107.17 mg/L), total coliform (0), fecal coliform (0) (MPN/100 mL) and HPC (322.9 CFU/mL). Our results showed that 10% of HPC outlet samples did not comply with the Iranian National Regulation (INR), Environmental Protection Agency (EPA), and World Health Organization (WHO) guidelines. The mean levels of examined parameters in desalination plants' outlets generally complied with the INR, EPA and WHO guidelines. Decentralized municipal desalination plants efficiency in removal of measured parameters were in the range of 18.52 (in the case of nitrite) to 100% (in the case of turbidity).
Formation and remediation simulation of an in-situ reactive zone with nanoiron for a nitrobenzene-contaminated aquifer
Authors: Hui Li , Xue-qing Zhang 
Published: March 2018

Abstract
A two-dimensional simulated sand box was built to investigate the formation and remediation of an in-situ reactive zone (IRZ) of nanoscale zero-valent iron (NZVI) for a nitrobenzene-contaminated aquifer, and the permeability change of the zone was calculated through the loss of waterhead. The experimental results demonstrated that the remediation area in coarse sand was obviously larger than that in fine sand. The nitrobenzene concentration reached a stable level of 87.24 and 170.24 mg/L in coarse and fine sand by 50 d and 40 d, respectively; after 60 d, the concentration of aniline as the reduction end-product of nitrobenzene was 97.02 and 49.40 mg/L, corresponding to a mean production rate of 40.1% and 20.8%, respectively. This indicated that a wider zone will be formed in the media with a larger size, which is beneficial for pollution remediation. The water yield of the aquifer declined by 13.8% and 11.9% in coarse and fine sand after 60 d, and the final permeability constant was 22.94 and 1.82 m/d (declining by 60.9% and 70.6%), respectively. The reactive zone remained stable and the injection of NZVI slurry could not cause any dramatic changes in the aquifer permeability.