bluuebunny/crossref_metadata_2025_split huggingface dataset:
Армяне России – геодемографические тенденции прошлого, современные реалии и перспективы
Authors: Сущий Сергей Яковлевич 
Published: October 2018

В статье анализируется количественный рост, пространственная динамика, гендерная структура и форма расселения армянского населения России в XVIII-XX веках. Изучено демографическое соотношение крупнейших региональных сообществ на разных этапах их развития. Определены основные исторические периоды геодемографической динамики армян России.
Первый может быть обозначен как «южнороссийский» (вторая треть XVIII века – 1920-е годы). На его протяжении подавляющая часть армянского населения России концентрировалась в пределах южного макрорегиона. На втором этапе (середина 1920-х – первая половина 1980-х гг.) армяне расселяются почти по всей территории РСФСР, но представляют внутренне слабосвязанные этнические группы. Третий период (вторая половина 1980-х – настоящее время) связан с трансформацией данных групп в развитые региональные общины.
Три века количественного роста позволили армянам стать к началу XXI века одним из крупнейших народов Российской Федерации. В среднесрочной перспективе (к 2030 г.) при благоприятном сценарии демографической динамики армяне в состоянии занять третью позицию в демографическом рейтинге народов России (следом за русскими и татарами).
WALK POLYNOMIAL: A New Graph Invariant
Authors: Nizami Abdul Rauf , Perveen Afshan , Nazeer Waqas , Baqir Mahnoor 
Published: October 2018

Abstract
In this paper we introduce the walk polynomial to find the number of walks of different lengths in a simple connected graph. We also give the walk polynomial of the bipartite, star, wheel, and gear graphs in closed forms.
Herramientas de gamificación para el aprendizaje de ciencias de la tierra
Authors: De Soto García Isabel Sonsoles 
Published: October 2018

El porcentaje de abandono escolar en España es superior al de otros países de la Unión Europea, lo que hace necesario fomentar el rendimiento del alumnado y su motivación. En este contexto, la gamificación tiene un futuro prometedor ya que promueven la participación del alumnado y su deseo por aprender. Se han desarrollado tres actividades de gamificación (trivial, Kahoot y Socrative) para el estudio de ciencias de la tierra. Se ha observado que los alumnos prefieren las actividades de gamificación con soporte informático ya que crean un ambiente divertido que fomenta la participación y motivación. Sin embrago, también generan un aumento en la competitividad y los resultados obtenidos no son tan altos como los esperados inicialmente.
Health risk of swimming pool disinfection by-products: a regulatory perspective
Authors: Pándics Tamás , Hofer Ádám , Dura Gyula , Vargha Márta , Szigeti Tamás , Tóth Erika 
Published: October 2018

Abstract
While disinfection of swimming pools is indispensable for microbiological safety, it may lead to the formation of disinfection by-products. Most studies agree that inhalation exposure is the predominant pathway of the associated health risks, but assumptions are based on concentrations measured in water and evaporation models. Pool water and air were sampled in 19 swimming pools. Trihalomethanes were detected in all sites; chloroform being the most abundant species. Concentrations ranged between 12.8–71.2 μg/L and 11.1–102.2 μg/m3 in pool water and air, respectively. The individual lifetime carcinogenic risk associated with chloroform in swimming pools exceeded 10−6 in all age groups for recreational swimmers and 10−5 for elite swimmers and staff, even if the pool complied with the national standards. Inhalation exposure was estimated and found to be the most relevant, however, different mass transfer models from water measurements significantly under- or overestimated the health burden compared to direct calculation from the concentration in air. The observed health risks call for defining regulatory values and monitoring requirement of indoor air quality in swimming pools.
Anammox start-up strategies: the use of local mixed activated sludge seed versus Anammox seed
Authors: Kocamemi Bilge Alpaslan , Dityapak Duygu , Semerci Neslihan , Keklik Esra , Akarsubası Alper , Kumru Mert , Kurt Halil 
Published: October 2018

Abstract
The start-up period of Anammox systems is still a big challenge due to the unavailability of large volumes of slowly growing Anammox seed locally in most countries. This study aims to evaluate the effects of seeding strategy on the start-up and enrichment period of Anammox systems by monitoring both process performance and microbial population dynamics. Two different seeding strategies, the use of mixed activated sludge culture from a local STP and the use of enriched Anammox culture transported from abroad, were comparatively studied in SBR systems operated for 410 days. The enriched Anammox seed from abroad inhibited seriously during transportation. Anammox activity re-started after 195 days' recovery period. An active Anammox culture was successfully enriched within 95 days from a local activated sludge source without seeding any Anammox. The Anammox population reached levels of 1011 copies/ng at the end of 410 days' enrichment period. Based on FISH, Ca. Brocadia anammoxidans and Ca. Scalindua species were dominant in the enriched culture. The maximum TNRR was observed as 430 mg N/day. DGGE analyses revealed a drastic change in the microbial community (56%) with Anammox enrichment. Phylogenetic analysis demonstrated a significant decrease in phylotype Proteobacteria and increase in phylotypes Planctomycetes, Chloroflexi and Acidobacteria with enrichment.
Development of psychological technologies in sports practice
Authors: Voronov Nikolay Andreevich 
Published: October 2018

It is said in the article that today's sport – one of the parties of our modern culture and public life of society which has the content, structure, regularities and mechanisms of manifestation. The show of sport attracts many million people. The sport is not only wrestling on arenas and stadiums, it is our way of life in which we compete every day, it is the sphere of formation of the personality and an image «I», areas where dreams and desires where everyone can find the place, most often the first experience of overcoming difficulties and a victory over yourself, is experience of victories and ability to work with them, it is one of the few types of modern activity where he it is possible to become the hero and a star in the period of youth of which all dream.
Refolding and Activation from Bacterial Inclusion Bodies of Trypsin I from Sardine (Sardinops sagax caerulea)
Authors: Carretas-Valdez Manuel I. , Cinco-Moroyoqui Francisco J. , Ezquerra-Brauer Marina J. , Marquez-Rios Enrique , Quintero-Reyes Idania E. , Lopez-Zavala Alonso A. , Arvizu-Flores Aldo A. 
Published: October 2018

Background:Trypsin from fish species is considered as a cold-adapted enzyme that may find potential biotechnological applications. In this work, the recombinant expression, refolding and activation of Trypsin I (TryI) from Monterey sardine (Sardinops sagax caerulea) are reported.Methods:TryI was overexpressed in Escherichia coli BL21 as a fusion protein of trypsinogen with thioredoxin. Refolding of trypsinogen I was achieved by dialysis of bacterial inclusion bodies with a recovery of 16.32 mg per liter of Luria broth medium.Results:Before activation, the trypsinogen fusion protein did not show trypsin activity. Trypsinogen I was activated by adding 0.002 U of native TryI purified from the sardine pyloric caeca (nonrecombinant). The activated recombinant trypsin showed three times more activity than the nonrecombinant trypsin alone.Conclusion:The described protocol allowed obtaining sufficient amounts of recombinant TryI from Monterey sardine fish for further biochemical and biophysical characterization of its coldadaptation parameters.
Synthesis of Functionalized Magnetite Titanium Dioxide Nanocomposite for Removal of Acid Fuchsine Dye
Authors: Rahnama Sara , Shariati Shahab , Divsar Faten 
Published: October 2018

Objective: In this research, a novel magnetite titanium dioxide nanocomposite
functionalized by amine groups (Fe3O4@SiO2@TiO2-NH2) was synthesized and its ability for
efficient removal of Acid Fuchsine as an anionic dye from aqueous solutions was investigated.

Method:
The core-shell structure of Fe3O4@SiO2@TiO2 was prepared using Fe3O4 as magnetic core,
tetra ethyl orthosilicate as silica and tetra butyl titanate as titanium source for shell. The synthesized
nanocomposites (particle size lower than 44 nm) were characterized by FT-IR, XRD, DRS, SEM and
TGA instruments. The various experimental parameters affecting dye removal efficiency were
investigated and optimized using Taguchi fractional factorial design.

Results:
The synthesized adsorbent showed the highest removal efficiency of Acid Fuchsine (99 %)
at pH= 3.5, without salt addition and during stirring at contact times less than 10 minutes. The study
of kinetic models at two concentration levels showed the fast dye sorption on the surface of proposed
nanocomposites with pseudo second order kinetic model (R2=1). Also, the fitting of Acid Fuchsine
sorption data to Freundlich, Langmuir and Temkin isotherms suggested that Freundlich model gave a
better fitting than other models (R2=0.9936, n=2).

Conclusion:
Good chemical stability, excellent magnetic properties, very fast adsorption kinetics
and high removal efficiency make the synthesized nanocomposite as a proper recoverable sorbent for
removal of Acid Fuchsine dye from wastewaters.
Using Resonance Frequency Analysis to Compare Delayed and Immediate Progressive Loading for Implants Placed in the Posterior Maxilla: A Pilot Study
Authors: Juboori Mohammed Jasim AL , Attas Mohammed Ahmed AL , Gomes Raquel Zita , Alanbari Basma Fathi 
Published: October 2018

Objective:
Implants placed in the posterior region of the maxilla have a high incidence of implant failure due to poor bone quality, especially when immediate implant loading is needed. Immediate Progressive Loading (IPL) can enhance bone quality and may offer an alternative solution when Immediate Implant loading is needed.

Methods:
Six patients (one male and five females; 34-62 years old) were included in this study. Twelve implants were inserted in the posterior region of the maxilla. Resonance Frequency Analysis (RFA) was performed at the time of implant placement and after 1, 2, 3 and 6 months. ISQ (Implant Stability Quotient) values were compared between the Delayed Loading (DL) group after 2 months and the Progressive Loading (PL) group and between different time points for each group.

Results:
At implant placement, the mean ISQ values for PL and DL implants were 63 and 57, respectively. One month after implant placement, the mean ISQ value for PL implants was 73.
Two months after implant placement, the mean ISQ value for PL implants was 75. Three months after implant placement, the mean ISQ values for PL and DL implants were 76 and 69, respectively. Six months after implant placement, the mean ISQ values for PL and DL implants were 79 and 76, respectively.

Conclusion:
Despite its limitations, this pilot study indicated that compared to DL, PL can enhance bone density and implant stability, resulting in greater early functionality and fewer surgery sessions.
The Anticancer Role of Omega-3 Polyunsaturated Fatty Acids was Closely Associated with the Increase in Genomic DNA Hydroxymethylation
Authors: Huang Qionglin , Mo Mingming , Zhong Yu , Yang Qingjin , Zhang Junjie , Ye Xiaoxia , Zhang Lijian , Cai Chun 
Published: October 2018

Background:
Omega-3 polyunsaturated fatty acids (omega-3 PUFAs) have significant multiple antitumor
roles. However, whether epigenetic DNA hydroxymethylation enrolls in the anticancer process of omega-
3 PUFAs is still not clear yet.

Objective:
To expound the interaction between the anti-tumor role of omega-3 PUFAs and the DNA demethylation
pathway and thus provide a firm foundation for deepening our understanding on anticancer mechanism of
omega-3 PUFAs.

Methods:
Colorectal Cancer (CRC) model rats were induced to generate tumor by N-methyl-N-nitrosourea and
their counterparts treated with omega-3 PUFAs during the induction. The blood samples from different treatment
groups of rats [Normal Control group (NC), colorectal cancer model group (CRC) and omega-3 PUFAs Medication
Group (MG)] were used as experimental materials. Genomic 5-hydroxymethylocytosine (5hmC) content
was quantified using LC-MS/MS, and the expression of ten-eleven translocation dioxygenase 1 (TET1), catalyzing
the generation of 5hmC, was also evaluated by quantitative real-time PCR.

Results:
We observed lower tumor incidence and small tumor size in MG group when compared with CRC
group, supporting the effective anticancer role of omega-3 PUFAs. Due to the formation of CRC, 5hmC level
was dramatically dropped in CRC group when compared with the NC group. Notably, 5hmC percentage in MG
group remarkably increased close to NC group and was significantly higher than that in the CRC group. Consistent
alteration pattern of TET1 expressions in mRNA was also observed in the tested groups of rats.

Conclusion:
The anticancer effect of omega-3 PUFAs was positively correlated with global 5hmC accumulation
and TET1 expression, suggesting DNA hydroxymethylation pathway was factually involved in the anticancer
process of omega-3 PUFAs.
Molecular Studies on Novel Antitumor Bis 1,4-Dihydropyridine Derivatives Against Lung Carcinoma and their Limited Side Effects on Normal Melanocytes
Authors: Mohamed Magda F. , Ibrahim Nada S. , Elwahy Ahmed H.M. , Abdelhamid Ismail A. 
Published: October 2018

Background:
Cancer is a complex genetic disease which is characterized by an abnormal cell growth,
invasion and spreading to other parts of the body. There are several factors that lead to cancer by causing DNA damage
and the impairment of its repair. Treatment of cancer using the chemotherapeutic drugs have adverse side effects
such as toxicity as they lose their specificity toward cancer cells and affect also normal cells. Moreover, the cancer
cells can resist the chemotherapeutic agents and make them ineffective. For these reasons, much attentions have been
paid to develop new drugs with limited side effects on normal cells and to diminish cancer resistance to drug chemotherapy. Recently, some 1,4-dihydropyridine derivatives were reported to act as Multi-Drug Resistance (MDR)
modulators that inhibit p-glycoprotein which is responsible for the inability of drugs to enter the cancer cells. Also
1,4-DHPs have antimutagenic properties against chemicals via modulating DNA repair when studied on drosophila.

Objective:
The objective of this study is the synthesis of bis 1,4-DHPs incorporating ester as well as ether linkages
and evaluate the anticancer activity of new compounds for synergistic purpose. Different genetic tools were used in
an attempt to know the mechanism of action of this compound against lung cancer.

Method:
An efficient one pot synthesis of bis 1,4-DHPs using 3-aminocrotononitrile and bis(aldehydes) has been
developed. The cytotoxic effect against human cell lines MCF7, and A549 cell lines was evaluated.

Results:
All compounds exhibited better cytotoxicity toward lung carcinoma cells than breast cancer cells. With
respect to lung carcinoma cell line (A549), compound 10 was the most active compound and the three other compounds
7, 8, and 9 showed comparable IC50 values. In case of breast cancer cell line (MCF7), the most active one
was compound 7, while compound 8 recorded the least activity.

Conclusion:
we have developed an efficient method for the synthesis of novel bis 1,4-dihydropyridine derivatives
incorporating ester or ether linkage. All compounds showed better cytotoxicity results against A549 than MCF7, so
that lung carcinoma cell line was chosen to perform the molecular studies on it. The results showed that all
compounds (7, 8, 9 and 10) caused cell cycle arrest at G1 phase. The molecular docking study on CDK2 confirmed
the results of cell cycle assay which showed good binding energy between the compounds and the active site of
enzyme indicating the inhibition of the enzyme.
Synthesis and Evaluation of Herbal Based Hair Dye
Authors: Pal Rashmi Saxena , Pal Yogendra , Rai A.K , Wal Pranay , Wal Ankita 
Published: October 2018

Background:Herbal based hair dyes are being preferred on large scale, due to the vast number of advantages it exerts to overcome the ill-effects of a chemical based hair dye. We have attempted to prepare and standardize this preparation to ensure its quality as well as stability aspects.Objective:The current research was aimed at the preparation of herbal hair dye and the evaluation of its various parameters as organoleptic, physico-chemical, phytoconstituents, rheological aspects, patch test and stability testing for its efficacy and shelf life.Materials and Methods:The herbal dye was prepared in-house according to the proposed composition, using all the natural ingredients. The dye was evaluated for its organoleptic, physico-chemical and stability parameters.Results:The parameters were found to be comparable and sufficient for the evaluation of herbal dye. The values of different evaluations justified the usage of the hair dye.Conclusion:Herbal based hair dye has been prepared and evaluated using the various parameters. It offers a natural alternate, which can be used, irrespective of any side effects. The results can be incorporated while developing the pharmacopoeial standards.
Information Availability in Acquisition Decisions: The Role of Prior Relations and Rival Bidders
Authors: Smeulders Dieter , Dekker Henri C. , Van den Abbeele Alexandra 
Published: October 2018

ABSTRACT
This study uses detailed survey data from key decision makers in acquiring firms to test the impact of information availability in corporate acquisitions on pre-acquisition valuation and post-acquisition performance. Our results provide support for the hypothesis that information constraints at the time of target valuation are associated with greater overpayment and weaker post-acquisition performance. Prior ties between firms are found to reduce information constraints to acquiring managers, and thereby reduce overpayment and increase post-acquisition performance. Bids by other potential acquirers are found to signal their private information about the target, providing a substitute for lacking information. This effect holds particularly for non-financial data, which are harder to obtain. These findings suggest that overpayment and underperformance can be prevented not only when an acquirer possesses more information, but also when in the absence of needed information, the presence of rival bidders signals their private information about the value of the target.
Penentuan Lokasi Lumbung Pangan Berdasarkan Gravity Location Models dengan Koordinat UTM di Provinsi Maluku Utara
Authors: Hasna Nafisah Riskya , Setiawan Adi , Parhusip Hanna Arini 
Published: October 2018

Salah satu usaha pemerintah dalam menyejahterakan masyarakat yaitu memenuhi kebutuhan pangan masyarakatnya. Pengendalian dalam penyediaan bahan pangan sangat diperlukan untuk dapat membantu dalam mengontrol distribusi bahan pangan. Dalam pengendalian penyediaan bahan pangan digunakan Gravity Location Models (GLM). GLM pada penelitian ini digunakan untuk menentukan suatu gudang yang berfungsi sebagai penghubung antara sumber-sumber pasokan dan beberapa lokasi sehingga dapat meminimalisasi biaya transportasi. Lokasi suatu gudang tersebut menggunakan koordinat geografis yang akan ditransformasikan ke koordinat UTM (Universal Transverse Mercator). Penelitian ini menggunakan data koordinat geografis pada Google Maps dan data jumlah penduduk, padi, jagung, dan ubi kayu Provinsi Maluku Utara Tahun 2014. Pengolahan data dilakukan secara manual dan menggunakan metode grid untuk mencari koordinat lokasi gudang atau lumbung pangan. Hasil dari perhitungan menggunakan (1) rumus dan (2) metode grid adalah koordinat lokasi lumbung pangan yang memiliki biaya transportasi minimum di Provinsi Maluku Utara yaitu terletak pada Kabupaten Halmahera Timur.
From Cyclic Nanorings to Single-Walled Carbon Nanotubes: Disclosing the Evolution of their Electronic Structure with the Help of Theoretical Methods
Authors: Pérez-Guardiola Andrés , Ortiz-Cano Ricardo , Sandoval-Salinas María Eugenia , Fernández-Rossier Joaquín , Casanova David , Jimenez Angel Jose Perez , Sancho-Garcia Juan-Carlos 
Published: October 2018

We systematically investigate the relationships between structural and electronic effects of finite size zigzag or armchair carbon nanotubes of various diameters and lengths, starting from a molecular template of varying shape and diameter, i.e. cyclic oligoacene or oligophenacene molecules, and disclosing how adding layers and/or end-caps (i.e. hemi-fullerenes) can modify their (poly)radicaloid nature. We mostly used tight-binding and finite-temperature density-based methods, the former providing a simple but intuitive picture about their electronic structure, and the latter dealing effectively with strong correlation effects by relying on a fractional occupation number weighted electron density (ρFOD), with additional RAS-SF calculations backing up thelatter results. We also explore how minor structural modifications of nanotube end-caps might influence the results, showing that topology, together with the chemical nature of the systems, is pivotal for the understanding of the electronic properties of these and other related systems.
Habitat Characteristics For Immature Stages of Aedes aegypti In Zanzibar City, Tanzania
Authors: Saleh Fatma , Kitau Jovin , Konradsen Flemming , Alifrangis Michael , Lin Chia-Hsien , Juma Salim , Mchenga Salum Seif , Saadaty Thabit , Schiøler Karin Linda 
Published: October 2018

ABSTRACT
Aedes aegypti is the main vector for dengue, chikungunya, yellow fever, Zika, and other arboviruses of public health importance. The presence of Ae. aegypti has never been systematically assessed in Zanzibar, including its preferred larval habitats. In 2016 we conducted a cross-sectional entomological survey to describe the preferred larval habitats of Ae. aegypti in Zanzibar City, the main urban area of the Zanzibar archipelago. The surveys for container habitats were conducted for a 17-wk period beginning in January 2016. Immature stages (larvae and pupae) were collected, reared to adulthood, and identified to species. The positive and potential habitats were categorized on the basis of physical, biological, and chemical parameters. A total of 200 samples were collected, of which 124 (62.0%) were positive for immature stages of mosquitoes and 114 (92%) for Ae. aegypti larvae and pupae. Presence of vegetation (odds ratio [OR] = 2.11, 95% confidence interval [CI] = 1.19–3.74), organic matter (OR = 2.37, 95% CI = 1.21–4.60), inorganic matter (OR = 1.78, 95% CI = 1.01–3.13), and sun exposure (OR = 2.34, 95% CI = 1.24–4.36) were all significantly associated with the presence of immature stages of Ae. aegypti, suggesting that these conditions promote colonization of containers. Plastic containers supported 64% of the immature stages and produced approximately 50% of the pupae. Although immature counts were the highest in discarded artifacts, higher pupal counts were found in domestic water storage containers. Our observations suggest that effective control of Ae. aegypti in Zanzibar City must include improved solid waste management (collection and proper disposal of potential container habitats) and reliable supply of domestic water to minimize water-storing practices that provide larval habitats for Ae. aegypti.