bluuebunny/crossref_metadata_2025_split huggingface dataset:
Epoxidation of natural limonene extracted from orange peels with hydrogen peroxide over Ti-MCM-41 catalyst
Authors: Wróblewska Agnieszka , Miądlicki Piotr , Makuch Edyta , Benedyczak Natalia 
Published: April 2018

Abstract
The paper presents the oxidation of natural limonene (extracted from waste orange peels) by 60 wt% hydrogen peroxide, in the presence of Ti-MCM-41 catalyst and in methanol as the solvent. The aim of the research was to develop the most favorable technological parameters for the process of limonene oxidation (temperature, molar ratio of limonene to hydrogen peroxide, methanol concentration, Ti-MCM-41 catalyst content and reaction time) by analyzing changes in the main functions describing this process: the conversion of limonene, selectivities of appropriate products, the conversion of hydrogen peroxide and the effective conversion of hydrogen peroxide. The process is environmentally friendly process and it uses renewable raw material - limonene and a safe oxidant -hydrogen peroxide. During the study, very valuable oxygenated derivatives of limonene were obtained: 1,2-epoxylimonene, its diol, carvone, carveol, and perillyl alcohol. These compounds are used in medicine, cosmetics, perfumery, food and polymers industries.
Ultrasound-assisted emulsification–microextraction and spectrophotometric determination of cobalt, nickel and copper after optimization based on Box-Behnken design and chemometrics methods
Authors: Doroudi Zohreh , Niazi Ali 
Published: April 2018

Abstract
A fast, simple, and economical method for extraction, preconcentration and determination of cobalt, nickel and copper as their 1-(2-pyridilazo) 2-naphthol (PAN) complexes based on ultrasound-assisted emulsification–microextraction (USAEME) and multivariate calibration of spectrophotometric data is presented. Various parameters affecting the extraction efficiency were optimized both with univariate and Box–Behnken design. The resolution of ternary mixtures of these metallic ions was accomplished by using partial least-squares regression (PLS), orthogonal signal correction-partial least-squares regression (OSC-PLS), and orthogonal signal correction-genetic algorithmspartial least-squares regression (OSC-GA-PLS). Under the optimum conditions, the calibration graphs were linear in the range of 2.0–150.0, 2.0–120.0 and 2.0–150.0 ng mL−1 for Co2+, Ni2+, and Cu2+, respectively, with a limit of detection of 0.14 (Co2+), 0.13 (Ni2+) and 0.14 ng mL−1 (Cu2+) and the relative standard deviation was <2.5%. The method was successfully applied to the simultaneous determination of these cations in different samples.
Preparation and properties of nanocrystalline Ni/graphene composite coatings deposited by electrochemical method
Authors: Cieślak Grzegorz , Trzaska Maria 
Published: April 2018

Abstract
The paper presents results of studies of composite nickel/graphene coatings produced by electrodeposition method on a steel substrate. The method of producing composite coatings with nanocrystalline nickel matrix and dispersion phase in the form of graphene is presented. For comparative purposes, the study also includes nano-crystalline Ni coatings produced by electrochemical reduction without built-in graphene flakes. Graphene was characterized by Raman spectroscopy, transmission and scanning electron microscopes. Results of studies on the structure and morphology of Ni and Ni/graphene layers produced in a bath containing different amounts of graphene are presented. Material of the coatings was characterized by SEM, light microscopy, X-ray diffraction. The microhardness of the coatings was examined by Knoop measurements. The adhesion of the coatings with the substrate was tested using a scratchtester. The influence of graphene on the structure and properties of composite coatings deposited from a bath with different graphene contents was determined.
Composite coatings with nickel matrix and graphene as dispersed phase
Authors: Gajewska-Midziałek Anna 
Published: April 2018

Abstract
The paper presents the results of the studies of nickel-graphene composite coatings deposited by the electrochemical reduction method. A bath with low concentration of nickel ions, graphene as dispersed particles and organic compounds were used for deposition of the composite coatings nickel-graphene. The results of investigations of coatings deposited from the electrolyte containing 0.33, 0.5 and 1 g/dm3 graphene and two surface-active compounds were shown. The particles content in the coatings, the surface morphology, the cross-sectional structures of the coated samples, thickness and internal stresses were measured. Voltammetric method was used for examination of the corrosion resistance of samples of composite coatings in 0.5 M NaCl solution. The obtained results suggest that the content of incorporated graphene particles increases with an increasing amount of graphene in plating bath. The applications of organic addition agents was advantageous because it caused compressive stresses in the coatings. All of the nickel-graphene composite coatings had better corrosion resistance than the nickel coatings.
PIV measurement of tube-side in a shell and tube heat exchanger
Authors: Wang Kai , Zhang Zixu , Liu Qiong , Tu Xincheng , Kim Hyoung-Bum 
Published: April 2018

Abstract
In order to improve the performance of the shell and tube heat exchanger, a porous baffle and a splitter bar are employed in this research. Through the arrangement of the porous baffle in the tube-side inlet and the splitter bar in the tube, the flow distribution of liquid in the heat exchanger is improved. PIV technology is used to investigate the unsteady flow in the tube-side inlet and the outlet of different models. The porous baffle significantly improves the flow of fluid in the shell and tube heat exchanger, especially by eliminating/minimizing the maldistribution of fluid flow in the tube-side inlet. The performance of the arc baffle is better than that of the straight baffle. The splitter bar has a minimal effect on the flow field of the tube-side inlet, but it effectively improves the flow in the tube bundle and restrains the vortex generation in the tube-side outlet.
Effects of processing parameters on the properties of amphiphilic block copolymer micelles prepared by supercritical carbon dioxide evaporation method
Authors: Jiao Zhen , Wang Ziyi , Wang Xiudong , Fan Wenjing 
Published: April 2018

Abstract
The operation parameters for the supercritical carbon dioxide (ScCO2) evaporation method greatly affect the properties of the prepared drug-loaded micelles. In this study, the effects of those key parameters on the drug-loading content (LC) and drug entrapment efficiency (EE) are discussed. It is observed that EE and LC of the micelles are slightly increased with the enhancing temperature and the copolymer molecular ratio of hydrophilic/hydrophobic segment, while decreased with the enhancing ScCO2 evaporation rate. The pressure and volume ratio of ScCO2 to H2O are observed the optimum condition. In addition, the verification experiment is carried out under the obtained optimizing parameters. The prepared micelles exhibit relatively regular spherical shape and narrow size distribution with the EE and LC value of 70.7% and 14.1%, respectively.
Rare Renal Disease in Macedonia – An Update
Authors: Tasic Velibor , Gucev Zoran , Polenakovic Momir 
Published: April 2018

Abstract
Rare renal diseases (RRD) are an important category of rare disease (RD) as they can do great damage to the patients, families and society. The patient may undergo years even decades of numerous investigations including invasive procedures and yet not have definitive and precise diagnose and therefore, no opportunity for appropriate treatment. The great progress in molecular genetic techniques characterized many Mendelian diseases on molecular level. This gave the possibility for appropriate prevention and treatment interventions, genetic counseling and prenatal diagnosis. Herein, we summarize the current status of RRD in Macedonia. The research interest of Macedonian clinicians and scientists is focused on the genetics of congenital anomalies of the kidney and urinary tract (CAKUT), steroid resistant nephrotic syndrome, nephrolithiasis and nephrocalcinosis, cystic diseases and cilliopathies with collaborations with eminent laboratories in Unites States and Europe. This collaboration resulted in detection of new genes and pathophysiological pathways published in The New England Journal of Medicine and in other high impact journals. Macedonian health professionals have knowledge and equipment for diagnosis of RRD. Unfortunately the lack of finances is great obstacle for early and appropriate diagnosis. Participation in the international registries, studies and trials should be encouraged. This would result in significant benefit for the patients, health professionals and science.
Secondary Hodgkin Lymphoma and Myelodysplastic Syndrome (MDS) After Paclitaxel-Carboplatin Treatment in a Patient with Small Cell Lung Cancer
Authors: Petrusevska Marija , Stavridis Irina Panovska , Mladenovska Kristina , Petrushevska Gordana 
Published: April 2018

Abstract
Herein synchronous occurrence of Hodgkin lymphoma and secondary myelodysplastic syndrome in a 60 year old male patient with small cell lung cancer treated with combined chemotherapy (carboplatin and paclitaxel) and radiotherapy is presented. The objective of this report is to stress the importance of documenting and monitoring adverse drug reactions that arise from chemotherapy.
After four years of treatment with the combined chemotherapy, the patient presented inguinal lymphadenopathy and enlarged lymph nodes and histopathology rapport was suggestive for plasmacytoid variant of Castleman disease. Three years later, biopsy of lymph node was performed and diagnosis of Hodgkin lymphoma – mixed cellularity has been established. Molecular analyses revealed presence of dominant monoclonal population of the immunoglobulin genes in the oligo/monoclonal background. Bone marrow biopsy findings suggested secondary myelodysplasia and revealed signs of hematopoietic cells dismaturation with signs of megaloblastic maturation of the erytropoetic lineage, appearance of ALIP (abnormal localization of immature precursors) in the myeloid lineage and dysplastic megakaryocytes. In addition, an increased level of polyclonal plasmacytes (lambda vs kappa was 60%:40%) was found.
Hodgkin lymphoma and MDS occurring after 4 years of carboplatin/paclitaxel therapy might be contributed to the accumulation of alkylator-related DNA damage. This emphasize the need of outlining a monitoring plan regarding development of secondary leukemia and other malignant hematological proliferations should be outlined in the protocols.
The Effect of Rectus Sheath Block as a Supplement of General Anesthesia on Postoperative Analgesia in Adult Patient Undergoing Umbilical Hernia Repair
Authors: Kartalov Andrijan , Jankulovski Nikola , Kuzmanovska Biljana , Zdravkovska Milka , Shosholcheva Mirjana , Tolevska Marija , Naumovski Filip , Srceva Marija , Petrusheva Aleksandra Panovska , Selmani Rexhep , Sivevski Atanas 
Published: April 2018

Abstract

Background: Ultrasound guided rectus sheath block can block the ventral rami of the 7th to 12th thoracolumbar nerves by injection of local anesthetic into the space between the rectus muscle and posterior rectus sheath. The aim of this randomized double-blind study was to evaluate the analgesic effect of the bilateral ultrasound guided rectus sheath block as supplement of general anesthesia on patents undergoing elective umbilical hernia repair.

Methods: After the hospital ethics committee approval, 60 (ASA I–II) adult patients scheduled for umbilical hernia repair were included in this study. The group I (n=30) patents received only general anesthesia. In the group II (n = 30) patents after induction of general anesthesia received a bilateral ultrasound guided rectus sheath block with 40 ml of 0.25% bupivacaine. In this study we assessed demographic and clinical characteristics, pain score - VAS at rest at 2, 4, 6, 12 and 24 hours after operation and total analgesic consumption of morphine dose over 24-hours.

Results: There were statistically significant differences in VAS scores between the groups I and II at all postoperative time points - 2hr, 4 hr, 6 hr, 12 hr and 24 hr. (P < 0.00001). The cumulative 24 hours morphine consumption after the operation was significantly lower in the group II (mean = 3.73 ± 1. 41) than the group I (mean = 8.76 ± 2.41). This difference was statistically significant (p = 0.00076).

Conclusion: The ultrasound guided rectus sheath block used for umbilical hernia repair could reduce postoperative pain scores and the amount of morphine consumption in 24 hours postoperative period.
Correlation of hTERT Expression with Cervical Cytological Abnormalities and Human Papillomavirus Infection
Authors: Zejnullahu Vjosa A. , Zejnullahu Valon A. , Josifovska Slavica , Vukovik Nikola , Pakovski Kiril , Panov Sasho 
Published: April 2018

Abstract
Telomerase Reverse Transcriptase (TERT) is the main catalytic sub-unit of telomerase, a reverse transcriptase enzyme. Telomerase expression is regulated at many levels, with numerous studies suggesting that up-regulation of human TERT gene (hTERT) at transcriptional level results in immortal cell phenotype associated with cancer. The aim of this study is to determine the correlation between hTERT expression and different cervical precursor lesions, as well as with cervical cancer in patients with confirmed Human papillomavirus (HPV) infection.
The study included molecular analyzes on cervical samples from 214 women and matched Papanicolaou (Pap) test results. HPV detection and genotyping was performed by polymerase chain reaction (PCR) and genotyping. Quantitative real-time PCR (qRT-PCR) was performed using TaqMan probes and were calculated relative to the reference gene.
Results showed significantly increased hTERT mRNA expression levels in high-grade and low-grade lesions compared to normal control samples (p<0.01) associated with 6.31 fold higher risk for developing ASC-US and 9.20 for LSIL. Strong correlation between HPV infection and hTERT expression in the high-grade lesions and cervical cancer was also observed. hTERT relative expression values showed 98% specificity and 100 % sensitivity as indicator of cervical lesions particularly for the ACS-H, HSIL and cervical cancer. In conclusion, hTERT expression correlate with the cytological grade of the cervical lesions and HPV infection and has a potential to be used as a diagnostic and prognostic marker.
Application of Passive Methods of Robust Estimation: Baarda's and Pope's in Real Estate Market Analysis
Authors: Śpiewak Beata 
Published: April 2018

Abstract
The article presents the results of research into the appraisal of the usefulness and effectiveness of passive methods of robust estimation in real estate market analysis. Two methods are considered, i.e.: Baarda's and Pope's. The research is based on a database of flats sold in Kraków in 2015.
It has been proved that algorithms of robust estimation allow for eliminating outlying transactions from the collected database, causing the set of observations to become coherent and free of observations which might be fraught with gross error caused by the human factor.
The Time-Varying Nature of Reits
Authors: Zhu Bing 
Published: April 2018

Abstract
This paper investigates changes in the nature of REITs by estimating the time-varying long-run relationship among securitized real estate, direct real estate, and stock performance. The informational environment of U.S. REITs has matured gradually since their introduction. As more information on this asset class has become available, the “true” nature of REITs has thus become more apparent. We find that the long-term elasticity of direct real estate total returns on REIT total returns has increased since 1980, and became significant at the beginning of the 1990s, while the elasticity of general equity total returns remained insignificant. During the 2000s, the underlying property market was able to predict nearly 30% of REIT variance in the long term. Consequently, ignoring changes in the “nature” of REITs may lead to an underestimation of the influence from the underlying property market, and misspecification of the optimal weights in the long-term inter-asset portfolio.
The Value of Urban Parks in Lodz
Authors: Olbińska Katarzyna 
Published: April 2018

Abstract
An awareness of the role of public space is growing among the inhabitants of cities. This space is an integral part of our daily lives. It consists of places outside the home where we spend free time, i.e. the streets we walk on, the squares and greeneries where we meet, as well as playgrounds, parks and green areas where we rest and do sports. The quality of such space affects many aspects of human life.
Positive trends in terms of growing public awareness do not, however, seem to be reflected in the awareness and actions of public entities in Poland, strong evidence of which are the widely criticized amendments of regulations governing the felling of trees.
The goal of this article is to present the different dimensions of the value of urban parks, as well as to apply the direct use approach to measure the recreational value of the park system in Lodz. Expressing different aspects of the value of public space, especially parks, in monetary units and incorporating these values in spatial planning analysis can contribute to a significant improvement in the quality of life of urban dwellers and their perception of urban space.
Ways of Acquiring Land Property for the Construction of Province Roads
Authors: Noga Karol , Balawejder Monika , Nosek Grzegorz 
Published: April 2018

Abstract
The topic of this article is related to issues connected with public roads. The thematic scope of the work includes the presentation and analysis of the legal regulations governing the acquisition of real estate under provincial public roads. The purpose of the article is to carry out an analysis of the legal and technical regulations governing the entire process of acquiring real estate along these roads, and assessing their completeness, adequacy and coherence. The analysis was carried out in the aspect of a number of operations, technical activities and the requirements of government agencies operating in the field of public roads, in an aim to manage and carry out investments on provincial roads. The paper presents and elaborates on problems connected with the acquisition of real estate along provincial roads on two levels. The first involves the regulation of the legal status of the existing regional road network from the 1st January 1999, while the second is the implementation of new road investments within the network of provincial roads.
A Perspective on Industry Classification and Market Reaction to Corporate News: Evidence from India
Authors: Bhattacharjee Nayanjyoti , De Anupam 
Published: April 2018

Abstract
In this paper, we provide a cross-industry perspective on the market reaction to different corporate news in the context of Indian stock market. We have studied the price and volume movements associated with eight broadly defined news categories namely Analyst Calls, Earnings, Earnings Forecasts, Finance, Legal and Regulatory, Management, Operations and Restructuring. We have employed the standard event study methodology on a sample of stocks listed on the National Stock Exchange of India for the purpose of our study. We observe that the market reaction to firm specific corporate news varies according to the type of news across different industry groups. We also observe that the sentiment of the news is a critical factor which influences the market reaction to such news flow across industry groups. We also provide a cross-industry perspective on the relative importance of different corporate news categories after taking into account the sentiment of the news in the context of Indian stock market.
Rethinking Microfinance in a Dual Financial System: An Agent-based Simulation
Authors: Bourhime Sara , Tkiouat Mohamed 
Published: April 2018

Abstract
Critics concerning the real impact of traditional microfinance as a tool for poverty alleviation are becoming frequent. In contrast, the financial crisis brought out interest for Islamic finance, whose models have been increasingly studied. Today, the real challenge lies in evaluating the impact of microfinance in a complex environment, where both Islamic and conventional microfinance institutions exist and address evolving clients in constant interaction. New methods and models are therefore needed in order to test the efficacy and assess the impact of introducing Islamic microfinance products, compared to the conventional system. In this context, this paper proposes an approach to build an Agent-Based Modeling (ABM) framework, which is aiming to test the effects of such products implementation using Islamic interest-free group loans. It also helps assess the impact of the behavioral biases as well as agents’ interactions within the repayment process.
The Day-of-the-Week Effect: Evidence from Selected Balkan Markets
Authors: Karanovic Goran , Karanovic Bisera 
Published: April 2018

Abstract
The main aim of this paper is to investigate the existence of the “day of the week” financial effect in select Balkans stock markets indices. Many findings of market anomalies have corroborated the presence of the “day of the week” effect in developed markets; however, so far scarce research has been presented on this subject for the Balkan capital markets. Hence, an additional objective of this paper is to examine the impact of this market anomaly on the market efficiency hypothesis. The methodology used in this paper employs a regression including dummy variables which will help determine the existence of the effect. The authors use daily mean returns of selected stock indices found to be lower at the beginning of the week but not necessarily on Monday. The results are interpreted and expounded taking into consideration the history and market development. The paper provides academia and investors as well as policy makers new perspective of the market anomalies linked to the financial behavior of the capital markets in select Balkan countries.
Dinamika Kelompok Tani Hutan Agroforestry di Kabupaten Bandung
Authors: Rimbawati Dyah Ekaprasetya manggala , Fatchiya Anna , Sugihen Basita Ginting 
Published: April 2018

<p>Keberadaan kelompok tani hutan (KTH) yang tetap dinamis dan seberapa besar kontribusi kedinamisan kelompok terhadap keberhasilan KTH diperlukan adanya penguatan kelompok dalam hal ini dinamika kelompok. Tujuan penelitian yaitu untuk menganalisis dinamika kelompok tani hutan <em>agroforestry</em> dan menganalisis faktor-faktor yang mempengaruhi dinamika kelompok tani hutan <em>agroforestry</em> di Kabupaten Bandung. Penelitian dilaksanakan dari bulan Februari-April 2017. Jumlah sampel penelitian adalah 78 orang. Analisis data menggunakan <em>Partial Least Square</em><em> </em>(PLS). Kesimpulan penelitian yaitu bahwa dinamika kelompok tani hutan <em>agroforestry</em> tergolong dalam kategori rendah yaitu kelompok kurang mampu dalam menggerakkan anggota untuk mencapai tujuan kelompok. Adapun unsur yang rendah pada tujuan, struktur, pembinaan dan pengembangan, kekompakan, suasana dan tekanan kelompok, sedangkan yang kuat adalah unsur fungsi tugas dan keefektifan kelompok. Rendahnya dinamika kelompok tersebut dipengaruhi oleh rendahnya tingkatan peran penyuluh, ketidaksesuaian materi penyuluhan dan kurangnya kemitraan. Selain itu dipengaruhi oleh tingginya motivasi dan kekuatan kepemimpinan ketua KTH.</p><p><strong></strong><br /><strong></strong></p>