bluuebunny/crossref_metadata_2025_split huggingface dataset:
Housing provision and improvement programmes for low income populations in the developing world. A review of approaches and their significance in the European context
Authors: Gałuszka Jakub 
Published: May 2013

Abstract.The paper deals with the issue of affordable housing provision for low income populations in the developing countries and its significance in the European context. My goal is to discuss this topic through the analysis of different approaches to household provision and improvement with special focus on the involvement of communities in various upgrading procedures. Separate sections of the paper refer to the most important approaches developed in the 20th and 21st centuries. These include: site and service, slum upgrading, incremental housing and communityled upgrading which are analysed through the prism of several examples coming from various parts of the world.The discussion of the strategies formulated in the developing world is linked with the new approaches towards housing provision that are presently promoted or are spontaneously emerging in various cities of Central Europe. These include the issues of container-houses construction in Poland and the creation of informal settlements by Roma populations in Polish and Slovakian cities.
Physical health facilities in Nigeria’s sub-national regions: geodemographic and spatial analyses of health institutions in Nigeria’s 36 states and Federal Capital Territory
Authors: Ingwe Richard 
Published: May 2013

Abstract.This paper reports results of geodemographic-spatial analyses of physical health-care facilities in Nigeria’s 36 states and federal capital. Apart from facilitating understanding of the interaction between health facilities and population sizes and their characteristics in the states, the geodemographic-spatial analyses proved useful in ranking shares of health facilities in Nigeria’s states/territory. The findings show distributions (per capita shares) of various health-care facilities in the following states: highest shares of public (primary and secondary) health facilities and fair share of tertiary facilities in Kogi; lowest per capita shares of public and private primary health care facilities in Ebonyi; highest per capita share of private health facilities in Nasarawa (primary), Anambra (secondary) and Oyo (tertiary); highest total private health facilities of all levels due to the large number of its private primary health facilities in Nasarawa. The results show how the policies of governments and private organizations providing health services responded to health needs of state populations and highlight areas requiring further research. The policy implications of the study include the need to apply geodemographic and spatial analyses as part of the criteria for determining policy for providing or allocating health facilities in the states/territory.
Neurobiology of Psychotherpeutic Relationship-New Perspectives
Authors: Samardžić Ljiljana , Nikolić Gordana 
Published: May 2013

SUMMARY
Since the time of Freud’s “Project for psychology as natural science” in 1895, at the dawn of psychoanalysis as the theory and therapy, psychoanalysis and psychotherapy in general have been attempting to establish and develop their biological roots. Numerous external and internal limitations and resistances have been limiting and opposing this process for almost a century. The last two decades brought a significant change in this view, especially following the development of contemporary neuroimaging techniques with their dynamic and functional features and growing interest for mental processes on behalf of neuroscience. The aim of this paper was to review scientific articles on recent advances in the field of neurobiology of psychotherapy, especially neurobiological underpinnings of psychotherapeutic relationship, and point to the new perspectives this knowledge brings. Recent advances in neurobiology and psychotherapy research open the way for the integration of psychotherapy and neurobiology. With this regard, science could contribute to closing the mind-brain gap which has been artificially dividing a human being for centuries. An integrated field enables new scientific perspective for both disciplines with multilayered understanding of mind-brain functioning.
Determination of Clindamycin Phosphate in Different Vaginal Gel Formulations by Reverse Phase High Performance Liquid Chromatography
Authors: Stanković Milica , Savić Vesna , Marinković Valentina 
Published: May 2013

SUMMARY
Clindamycin is an antibiotic effective against Gram-positive aerobes and both Gramnegative and Gram-positive anaerobic pathogens. Clindamycin (its phosphate ester) was used as a model drug for our study in order to check the efficacy of the developed vaginal gel formulations.
The aim of this study was to develop an analytical method suitable for the determination of clindamycin phosphate in three different vaginal gel formulations. The main difference between the three formulations was the use of different gelation agents in the formulations (Carbopol® 940, Carbopol® Ultrez 10 and Pemulen® TR 1). A new isocratic high performance liquid chromatography method based on reverse phase separation has been developed for the determination of clindamycin phosphate. The separation was achieved on a Zorbax Eclipse plus C8 column with a mobile phase of acetonitrile and pH 2.5 phosphate buffer and UV detection at 210 nm. A linear response (r>0.99) was observed in the range of 10.0-80.0 μg mL-1. The method shows good recoveries and relative standard deviations were less than 1.0%. The method can be applied to assess the stability of clindamycin phosphate in vaginal gel formulations. It can be used for quality control and stability study samples analysis.
Clindamycin phosphate concentration was different in vaginal gel formulations with different gelation agents, so the conclusion is that gelation agents (gel carriers) have a significant influence on the active drug concentration. The obtained results confirm that vaginal gel formulation with Carbopol® 940 shows the maximal stability during the analysis and provides the optimal value of clindamycin phosphate concentration.
Suppressive Effect of Fig (Ficus Carica) Latex on Esophageal Cancer Cell Proliferation
Authors: Hashemi Seyyed Abbas , Abediankenari Saeid 
Published: May 2013

SUMMARY
Fig (Ficus carica) tree latex was a source of treatment of different diseases in the Iranian traditional medicine reported by Avicenna in his 10th century book Canon of Medicine. The aim of this investigation was to establish the anticancer effect of fig tree latex on human cancer cells.
The in vitro effect of different doses of fig tree latex including 2.5 mg/ml, 5 mg/ml, and 10 mg/ml on esophageal cancer cell line was evaluated after 72 hours by MTT assay.
There was a significant change in 10 mg/ml treatment of latex after 72 hours on esophageal cancer line (P; 0.025). Ten mg/ml was the optimum concentration in the inhibition of cell line growth.
Fig (Ficus carica) tree latex could be a candidate as a potential agent for the inhibition of cancerous cells production and development.
Mature Intracranial Teratoma
Authors: Dimov Irena , Tasić Desanka , Stojanović Ivana , Stojanović Simonida , Stojanović Nebojša , Stefanović Ivan , Dimov Dragan 
Published: May 2013

SUMMARY
Teratomas constitute a group of nongerminomatous germ cell tumors that are composed of an admixture of different tissue types representative of ectoderm, endoderm and mesoderm. Intracranial teratomas are rare, comprising approximately 0.5% of all intracranial tumors. They preferentially involve the midline structures, and occur primarily in children.
We presented an unusual case of mature intracranial teratoma with extracranial extension in a 24-year-old man who complained of headache, nausea and vomiting. The intracranial expansive lesion was localized in the left frontotemporobasal region extending into the ipsilateral orbit. The patient underwent total resection of the tumor. No adjuvant treatment was given. On gross examination, the resected tumor was lobulated, containing heterogeneous solid and cystic components. Histologic investigation revealed the presence of various fully differentiated tissues representative of the three germ cell layers, including adipose tissue, cartilage, bone, striated muscle bundles, brain tissue, respiratory epithelium and glandular structures. The diagnosis of mature teratoma was established. Follow-up at four years did not show any evidence of recurrence.
The presented case is an unusual example of mature teratoma with regards to the age of the patient and, especially, to the location of the tumor, both intraand extracranially. It is critical to recognize this rare entity by extensive sampling to rule out the presence of immature elements which may constitute only a minor part of the tumor.
Burkitt Lymphoma in Elderly Patients
Authors: Petković Ivan , Mihailović Dragan , Krstić Miljan , Pejčić Ivica , Vrbić Svetislav , Balić Mirjana 
Published: May 2013

SUMMARY
Burkitt lymphoma (BL) is a disease of predominantly young population, while in the elderly it occurs as a rare neoplasm. Elderly patients (age >60 years) represent a significant problem because of the inability to apply effective aggressive chemiotherapy in these cases. The risk of induction death is very high and unacceptible. Mainly, palliative treatments are applied, whose goal is not curing but maintaining the quality of life. We present the case of a person 75 years old with a diagnosis of sporadic, typical BL treated with CHOP+R in the induction therapy with excellent response but rapid progression after the abolition of rituximab. In discussion, the authors are looking for relevant data on the therapeutic approach in BL in the elderly.
Cavernous weathering forms in SW Iceland: a case study on weathering of basalts in a cold temperate maritime climate
Authors: Zwalińska Katarzyna , Dąbski Maciej 
Published: May 2013

Abstract
The article is a case study of the development of cavernous weathering forms (alveoli and tafoni) on a sea cliff near Keflavik on the Reykjanes peninsula in southwestern Iceland. The majority of forms are found on vertical or inclined rock faces and cluster around the uppermost edge of the cliff. Single hollows gradually evolve due to back wearing of their sidewalls into complex caverns, until finally the whole outermost layer of basalt is removed. Particular attention is paid to mineralogical changes of basalts due to chemical and salt weathering. Chemical decomposition of feldspars, pyroxenes and olivines followed by precipitation of iron on and within the weathering rind, the presence of micro- and macro-pores such as gas bubbles and delivery of marine salts are proposed to be the key factors influencing cavern development.
Neighbourhood coefficients of cellular automata for research on land use changes with map algebra
Authors: Werner Piotr A. 
Published: May 2013

Abstract
The dependency of land use and the neighbouring land cover patches is related to the existing neighbourhood or the predominant land use types in a given region, which stimulates further land changes of the lot being observed. Land use changes can be considered a complex and (to an extent) random process. The complexity of interactions means that the conventional deductive models are constrained, particularly in the case of the spatio-temporal phenomena, and implies the application of cellular automata to spatial research. Cellular automata are similar to the map algebra models in GIS. The concept of using neighbourhood coefficients in the analysis of land use changes is based on the combination of map algebra with two-dimensional cellular automata. The aims of this research included formulating the theoretical structure of neighbourhood coefficients, analysing their operationalization and testing their practical application. The verification of research and procedures included maps and statistics of simulations of land use changes in Poland.
Iterative methods for zero points of accretive operators in Banach spaces
Authors: Wang Sheng Hua , Cho Sun Young , Qin Xiao Long 
Published: May 2013

Abstract The purpose of this paper is to consider the problem of approximating zero points of accretive operators. We introduce and analysis Mann-type iterative algorithm with errors and Halpern-type iterative algorithms with errors. Weak and strong convergence theorems are established in a real Banach space. As applications, we consider the problem of approximating a minimizer of a proper lower semicontinuous convex function in a real Hilbert space
On some lacunary difference sequence spaces defined by a sequence of Orlicz functions and q-lacunary Δnm-statistical convergence
Authors: Tripathy Binod Chandra , Dutta Hemen 
Published: May 2013

Abstract In this article, we introduce the lacunary difference sequence spaces w0(M, θ, Δnm, p, q), w1(M, θ, Δnm, p, q) and w∞(M, θ, Δnm, p, q) using a sequence M = (Mk) of Orlicz functions and investigate some relevant properties of these spaces. Then, we define and study the notion of q-lacunary Δnm-statistical convergent sequences. Further, we study the relationship between q-lacunary n m-statistical convergent sequences and Δnm the spaces w0(M, θ, Δnm, p, q) and w1(M, θ, Δnm, p, q).
Stability of a Class of Nonlinear Neutral Stochastic Differential Equations with Variable Time Delays
Authors: Wu Meng , Huang Nanjing , Zhao Changwen 
Published: May 2013

Abstract In this paper, we study the mean square asymptotic stability of a class of generalized nonlinear neutral stochastic differential equations with variable time delays by using fixed point theory. An asymptotic mean square stability theorem with a necessary and sufficient condition is proved which improves and generalizes some well-known results. Finally, two examples are given to illustrate our results.
Magnetic Schrödinger Operators with Discrete Spectra on Non-Compact Kähler Manifolds
Authors: Anghel Nicolae 
Published: May 2013

Abstract We identify a class of magnetic Schrödinger operators on Käler manifolds which exhibit pure point spectrum. To this end we embed the Schröinger problem into a Dirac-type problem via a parallel spinor and use a Bochner-Weitzenböck argument to prove our spectral discreteness criterion
Singularities of the eta function of first order differential operators
Authors: Loya Paul , Moroianu Sergiu 
Published: May 2013

Abstract
We report on a particular case of the paper [7], joint with Raphaël Ponge, showing that generically, the eta function of a first-order differential operator over a closed manifold of dimension n has first-order poles at all positive integers of the form n - 1; n - 3; n - 5;. . . .
On Variable Exponent Amalgam Spaces
Authors: Aydin İsmail 
Published: May 2013

Abstract We derive some of the basic properties of weighted variable exponent Lebesgue spaces Lp(.)w (ℝn) and investigate embeddings of these spaces under some conditions. Also a new family of Wiener amalgam spaces W(Lp(.)w ;Lqv) is defined, where the local component is a weighted variable exponent Lebesgue space Lp(.)w (ℝn) and the global component is a weighted Lebesgue space Lqv (ℝn) : We investigate the properties of the spaces W(Lp(.)w ;Lqv): We also present new Hölder-type inequalities and embeddings for these spaces.
Equilibrium existence under generalized convexity
Authors: Patriche Monica 
Published: May 2013

Abstract We introduce, in the first part, the notion of weakly convex pair of correspondences, we give its economic interpretation, we state a fixed point and a selection theorem. Then, by using a tehnique based on a continuous selection, we prove existence theorems of quilibrium for an abstract economy. In the second part, we define the weakly biconvex correspondences, we prove a selection theorem and we also demonstrate the existence of equilibrium for a generalized quasi-game (2003 Kim's model). In the last part of the paper, we give other applications in the game theory, finding equilibrium for abstract economies having correspondences with weakly convex graph. We show that the equilibrium exists without continuity assumptions.
Origins, genetic structure, and systematics of the narrow endemic peatmosses (Sphagnum): S. guwassanense and S. triseriporum (Sphagnaceae)
Authors: Shaw A. Jonathan , Shaw Blanka , Johnson Matthew G. , Higuchi Masanobu , Arikawa Tomotsugu , Ueno Takeshi , Devos Nicolas 
Published: May 2013

• Premise of the study: Sphagnum dominates vast expanses of wetland habitats throughout the northern hemisphere and species delimitation within the genus is important because floristic changes associated with a warming global climate may have measureable impacts on large‐scale ecological processes. Most northern hemisphere peatmoss species (Sphagnum) have circumboreal ranges, but the Japanese species generally known as S. calymmatophyllum is endemic to Honshu Island. This prompted a population genetic and phylogenetic analysis to resolve the origin(s), population structure, and phylogenetic relationships of this morphologically variable species.• Methods: Sixty plants collected from Mt. Gassan and Mt. Hakkoda were genotyped for 12 microsatellite loci. Two plastid loci and three anonymous nuclear loci were sequenced in a subset of the plants, plus representatives from 10 closely related species.• Key results: Gametophytes exhibited fixed or nearly fixed heterozygosity at 9–10 of the 12 microsatellite loci. Two genetic groups were resolved by the microsatellite data, individuals showed no evidence of admixture, and the two groups of plants differ in morphology. They are heterozygous for different sets of alleles. The two taxa share plastid DNA sequences with two species that are common in Alaska.• Conclusions: Two taxa were distinguished: S. guwassanense and S. triseriporum. Both are allopolyploids; they originated independently from different but closely related progenitors. The maternal progenitor was likely either S. orientale or S. inexspectatum. The two allopolyploid taxa are heterozygous for (different) private microsatellite alleles, and one progenitor could be extinct.
The impact of scientific journals of communication: Comparing Google Scholar Metrics, Web of Science and Scopus
Authors: Delgado-López-Cózar Emilio , Repiso-Caballero Rafael 
Published: May 2013

Google Scholar Metrics' launch in April 2012, a new bibliometric tool for the evaluation of scientific journals by means of citation counting, has ended with the duopoly exerted by the Web of Science and Scopus databases. This paper aims at comparing the coverage of these three databases and the similarity their journal rankings may have. We selected a sample of journals from the field of Communication Studies indexed in the three databases. Data was recollected on 1720 November, 2012. 277 journals were identified to which we calculated their hindex and ranked them according to such indicator. Then, we analyzed the correlation between the rankings generated. Google Scholar Metrics dobles the coverage of the other databases, reducing the bias toward English language both; web of Science and Scopus have. Google Scholar Metrics shows higher hindex values (an average 47% higher than Scopus and 40% higher than Web of Science), allowing to better rank journals. We conclude that Google Scholar Metrics is a tool capable of identifying the main journals in Communication Studies offering results as reliable and valid as the ones Web of Science and Scopus show.
La aparición de Google Scholar Metrics en abril de 2012 como nuevo sistema de evaluación bibliométrica de revistas científicas a partir del recuento de las citas bibliográficas que éstas han recibido en Google Scholar rompe el duopolio ejercido hasta el momento por las bases de datos Web of Science y Scopus. El objetivo de este trabajo es comparar la cobertura que poseen estas tres bases de datos y la similitud que puedan presentar los rankings elaborados a partir de ellas. Se ha elegido como muestra las revistas de comunicación indizadas en las tres bases de datos. Las búsquedas bibliográficas se efectuaron entre el 17 y el 20 de noviembre de 2012. Se calcula el índice h de las 277 revistas identificadas y se averigua la correlación existente entre los rankings generados. Google Scholar Metrics duplica la cobertura, reduce el sesgo anglosajón que poseen Web of Science y Scopus. Google Scholar Metrics proporciona índices h más elevados (un promedio de un 47% superior a Scopus y un 40% a Web of Science) con lo que permite discriminar mejor las posiciones de las revistas en el ranking. En conclusión, Google Scholar Metrics es una herramienta capaz de identificar las principales revistas de comunicación ofreciendo resultados tan solventes, fiables y válidos como los generados por Web of Science y Scopus.
The influence of social networks on the adolescents’ online practices
Authors: García-Jiménez Antonio , López-de-Ayala-López María-Cruz , Catalina-García Beatriz 
Published: May 2013

The aim of this article is to study in depth the changes taking place in the habits of adolescents using online communication, particularly due to the dramatic arrival of social networks in their daily lives, and the sociocultural implications of these processes. The research methodology focuses on a selfadministered questionnaire applied nationally. Based on the results of a survey of a representative national sample of 2,077 adolescents (12 to 17yearolds), this study has sought to update the information about online practices among Spanish adolescents, specifically with regard to the remarkable development of social networks. Similarly, the behavior of both regular users of social networks and of nonregular users has been compared, with the aim of detecting the influence of social network use on general online life, and we have considered the following variables: gender, age, funding type of the educational establishment and social class. Among the main conclusions of the study, we emphasize a more intensive use of the Internet as regards time and activities by those who are more frequent users of social networks, and especially the activities they carry out to keep in touch and share content with their equals.
Profundizar en los cambios que se están perfilando en los hábitos online de los adolescentes, en particular debido a la fuerte irrupción de las redes sociales en su vida cotidiana, así como en las implicaciones socioculturales de estos procesos, es el objeto de este trabajo. La metodología de investigación se centró en un cuestionario autoadministrado aplicado a escala nacional. Sobre una muestra representativa nacional de 2.077 adolescentes (de 12 a 17 años), se ha buscado actualizar la información relativa a las prácticas online entre los menores y adolescentes españoles, con atención específica a la extensión del fenómeno de las redes sociales e identificando su influencia sobre las prácticas de los adolescentes en la Red. De igual modo, se comparan los usos entre los usuarios habituales de las redes sociales y los que no las tienen entre sus prácticas cotidianas, con la idea de detectar la influencia del uso de las redes sociales en los usos generales en Internet y controlando esa relación en función de cuatro variables: sexo, edad, titularidad del centro al que asisten los adolescentes y clase social. Entre las principales conclusiones destacamos el uso más intensivo en tiempo y en actividades de los usuarios que utilizan muy frecuentemente las redes sociales, con especial incidencia en aquellas actividades que les permiten mantener el contacto y compartir contenidos con sus pares.