Miracle-dz/UniFAR-FTUs huggingface dataset:
EN BUSCA DEL DIÁLOGO Y LA TRANSFORMACIÓN: CONSECUENCIAS DE LOS SUPUESTOS DETRÁS DE LA INVESTIGACIÓN SOCIAL

En este trabajo se comparan algunas de las caracteristicas y resultados obtenidos de dos aproximaciones distintas, utilizadas para investigar el trabajo en el sector informal. Por un lado, aplico el analisis factorial confirmatorio para estudiar la relacion entre estructura social, condiciones de vida y funcionamiento psicologico. Por otro, con la participacion de los trabajadores en la recuperacion critica de su historia laboral y en la discusion de sus testimonios y los analisis sobre estos, investigo como algunos de nosotros entendemos, comunicamos y reaccionamos ante nuestras condiciones de trabajo. El objetivo es explorar en que medida son complementarias estas dos aproximaciones. Las perspectivas cuantitativa y cualitativa usadas, responden a diferentes interrogantes, utilizan distintas categorias analiticas, exploran diferentes patrones de interrelaciones, conllevan una relacion distinta entre los involucrados en la investigacion, y sirven para diferentes propositos y a personas distintas. Las diferencias entre las dos metodologias de investigacion tienen origen en dos concepciones distintas de la naturaleza del mundo social y de la forma en que un investigador puede llegar a conocerlo. De ahi la dificultad de combinarlas, mas alla de admitir que implican la observacion de dos dimensiones diferentes del mismo fenomeno. El cientifico es responsable de escoger una metodologia de investigacion que determinara como seran revelados los fenomenos que ha decidido estudiar y cuales seran las consecuencias del conocimiento obtenido. El metodo condiciona el conocimiento. A su vez, la escogencia de una metodologia esta relacionada con los supuestos personales sobre la naturaleza del ser humano y su realidad social. El estar conscientes de estas relaciones es fundamental para la labor de un investigador que quiera colaborar en la construccion de una sociedad diferente.
Association of postalimentary lipemia with atherosclerotic manifestations

We identified different lipemic and metabolic responses after the ingestion of a standardized meal by healthy adults and related them to atherosclerotic markers. Samples from 60 normolipidemic adults were collected before and after a liquid meal (40 g fat/m2 body surface) at 0, 2, 4, 6, and 8 h for measurements of lipids, free fatty acids (FFA), insulin, cholesteryl ester transfer protein (CETP), autoantibodies to epitopes of oxidized LDL (oxLDL Ab), lipolytic activities, and apolipoprotein E polymorphism. Mean carotid intima-media thickness (cIMT) was determined by Doppler ultrasound. The volunteers were classified into early (N = 39) and late (N = 31) triacylglycerol (TAG) responders to the test meal. Late responders showed lower HDL cholesterol concentration at fasting and in the TAG peak, lower insulin and higher FFA concentrations compared to early responders. Multivariate regression analyses showed that mean cIMT was associated with gender (male) and age in early responders and by cholesterol levels at the 6th hour in late responders. oxLDL Ab were explained by lipoprotein lipase and negatively by hepatic lipase and oxLDL Ab (fasting period) by CETP (negative) and FFA (positive). This study is the first to identify a postalimentary insulin resistance state, combined with a reduced CETP response exclusively among late responders, and the identification of the regulators of postalimentary atherogenicity. Further research is required to determine the metabolic mechanisms described in the different postalimentary phenotypes observed in this study, as well as in different pathological states, as currently investigated in our laboratory.
School leadership practice and preparation: Comparative perspectives on organizational learning (OL), instructional leadership (IL) and culturally responsive practices (CRP)

Purpose – The aim of this paper is to utilize successful leadership practices drawn from seven nations to improve leadership preparation.Design/methodology/approach – This study used a case study approach to gain a contextualized understanding of successful leadership across seven nations. Data sources primarily featured interviews with principals, teachers, staff members, parents, and students. Cases were analyzed within and then across nations with regards to organizational learning (OL), instructional leadership (IL), and culturally responsive practices (CRP). Findings – The cross‐national analysis of successful leaders indicated emerging policy trends, demographic changes, similarities and differences among leaders, and recommendations for leadership preparation.Originality/value – This paper draws from successful practices in OL, IL and CRP in seven nations to make recommendations for improving leadership preparation.
Mosla punctulata Inhibits Mast Cell-mediated Allergic Reactions Through the Inhibition of Histamine Release and Inflammatory Cytokine Production

Allergic inflammatory diseases such as food allergy, asthma, sinusitis and atopic dermatitis are increasing worldwide. This study examined the effects of aqueous extract of Mosla punctulata on mast cell-mediated allergic inflammation and studied the possible mechanism of action. Aqueous extract of Mosla punctulata inhibited compound 48/80-induced systemic and immunoglobulin E-mediated local anaphylaxis and it also reduced intracellular calcium level and down-streamed histamine release from mast cells. In addition, aqueous extract of Mosla punctulata decreased gene expression and secretion of tumour necrosis factor alpha, an important proinflammatory cytokine, in mast cells. The inhibitory effect on tumour necrosis factor alpha expression was nuclear factor kappa B dependent. The results indicate that aqueous extract of Mosla punctulata inhibited mast cell-mediated allergic inflammatory reaction by suppressing histamine release and expression of tumour necrosis factor alpha, and involvement of calcium and nuclear factor kappa B in these effects. Hence it can be concluded that, the aqueous extract of Mosla punctulata might be a possible therapeutic candidate for allergic inflammatory disorders.
Iterative multiuser detection for coded CDMA signals in AWGN and fading channels

A new iterative receiver for joint detection and decoding of code division multiple access (CDMA) signals is presented. The new scheme is based on a combination of the minimum mean square error (MMSE) criterion and the turbo processing principle by Hagenauer (see Proc. Int. Symp. Turbo Codes and Related Topics, Brest, France, p.1-9, 1997). The complexity of the new scheme is of polynomial order in the number of users. The new scheme is applicable to two situations: (a) when the receiver is capable of decoding the signals from all users and (b) when the receiver is only capable of decoding the signals from a subset of users. In the first scenario, we establish that the proposed receiver achieves superior performance to the iterative soft interference cancellation technique under certain conditions. On the other hand, in the second scenario, we argue that the proposed receiver outperforms both the iterative soft interference canceler and the iterative maximum a posteriori (MAP) receiver because of its superior near-far resistance. For operation over fading channels, the estimation of the complex fading parameters for all users becomes an important ingredient in any multiuser detector. In our scheme, the soft information provided by the decoders is used to enhance this estimation process. Two iterative soft-input channel estimation algorithms are presented: the first is based on the MMSE criterion, and the second is a lower-complexity approximation of the first. The proposed multiuser detection algorithm(s) are suitable for both terrestrial and satellite applications of CDMA.
Applying holistic principles in management development

Purpose – In preparing managers for the uncertainty, threats and opportunities posed by the challenge of frequent and unexpected changes in organizations and markets, an alternative to a traditional Western viewpoint is a holistic approach that embodies balance and harmony, sees more subtle relationships and avoids the tensions of opposites. The purpose of this paper is to report the derivation and application of six holistic principles for management development (quieting the mind, harmony and balance, relinquishing the desire to control, transcending the ego, centeredness, and the power of softness) derived from a non‐Western philosophy.Design/methodology/approach – The six principles were implemented in a management development program in a small high‐tech company. The reported effects upon the managers' role perceptions and behaviors were captured in immediate and delayed evaluations by means of face‐to‐face interviews.Findings – The analysis of the interview data identified four underlying values tha.
Politics in the Boardroom: Corporate Pay, Networks and Recruitment of Former Parliamentarians, Ministers and Civil Servants in Britain

This article explores an important aspect of post-career earnings in public life in Britain: membership of corporate boards by former parliamentarians, ministers and civil servants. It attempts to determine whether this group represents a distinct group within the wider network of interlocking corporate directorships in the UK. Further, it investigates the characteristics of those individuals who obtain appointments as non-executive directors to the boards of FTSE-listed companies after service in parliament and/or government. The analysis uses data on board membership and pay in Britain for more than 700 companies listed on the London Stock Exchange and over 7,500 directors and 1,000 former parliamentarians, government ministers and civil servants. The findings suggest that although this group is represented in the wider corporate network, these individuals are not more central than other directors and do not receive significantly different compensations once industry sector, experience and board role are controlled for. This article offers a novel insight into the interconnectedness of the public sphere and the corporate world.
When Children and Adults Do Not Use Learning Strategies: Toward a Theory of Settings

Strategies enhance learning. However, children and adults often fail to invoke strategic behaviors. In this article, five reasons for failure to use strategies are discussed: (a) poor cognitive monitoring, (b) primitive routines that yield a product, (c) a meager knowledge base, (d) attributions and classroom goals that do not support strategy use, and (e) minimal transfer. I argue that use and failure to use strategies are not fruitfully studied without consideration of setting. A theory of settings reminds us that, when context varies, the nature of strategic activity often varies as well.
Identification of the orotidine‐5′‐monophosphate decarboxylase gene of the oleaginous yeast Rhodosporidium toruloides

Oleaginous yeast Rhodosporidium toruloides is an excellent microbial lipid producer of great industrial potential, yet there is no effective genetic tool for rationally engineering this microorganism. To develop a marker recycling system, the orotidine‐5′‐monophosphate (OMP) decarboxylase gene of R. toruloides (RtURA3) was isolated using methods of degenerate polymerase chain reaction (PCR) together with rapid amplification of cDNA ends. The results showed that RtURA3 contains four extrons and three introns, and that the encoded polypeptide holds a sequence of 279 amino acid residues with significant homology to those of OMP decarboxylases from other yeasts. A shuttle vector pYES2/CT–RtURA3 was constructed via site‐specific insertion of RtURA3 into the commercial vector pYES2/CT. Transformation of the shuttle vector into Saccharomyces cerevisiae BY4741, a URA3‐deficient yeast strain, ensured the viability of the strain on synthetic dextrose agar plate without uracil, suggesting that the isolated RtURA3 was functionally equivalent to the URA3 gene from S. cerevisiae. The GenBank Accession Nos for the cDNA and genomic DNA sequences of RtURA3 are EU693528 and EU693529, respectively. Copyright © 2008 John Wiley & Sons, Ltd.
Contribution of Multiple Inert Gas Elimination Technique to Pulmonary Medicine 1 Principles and Information Content of the Multiple Inert Gas Elimination Technique

The chief function of the lung is pulmonary gas exchange which requires adequate levels of ventilation and perfusion of the alveoli. The lung must match pulmonary oxygen uptake (Vo2) and elimination of carbon dioxide (Vco2) to the whole body metabolic oxygen consumption and carbon dioxide production whatever the oxygen and carbon dioxide partial pressures in the arterial blood. During the first half of this century'2 the heterogeneity of the ventilation-perfusion (VA/Q) ratios within the lung was identified as a factor causing hypoxaemia (table). However, the importance of VA/Q inequality in producing hypercapnia in patients with some forms of lung disease has been pointed out only more recently.3 At the end of the second world war a crucial step towards a better understanding of the physiology of pulmonary gas exchange was the development of the three compartment model of the lung almost simultaneously by Fenn et alt and Riley and Cournand.5 The graphical analysis of this representation of the lung5 (fig 1) provided the conceptual basis for the traditional interpretation of arterial blood gas measurements in the clinical setting-that is, venous admixture, physiological dead space. The progress in the mathematical description of Po2 (mm Hg) Figure 1 The three compartment lung: Riley's oxygen-carbon dioxide diagram. ' The lung is represented by three units on the basis of the arterial and the expired partial pressures ox, ogen and carbon dioxide. One type of unit (dead space, I) is unperfused so its A/IQ ratio is infinity. The Po2 and Pco2 is then equivalent to those of the inspired gas mixture. A second type of unit (V) is unventilated so its (AI(Q ratio is zero and its Po2 and Pco2 are equivalent to those of mixed venous blood. Finally, a third type of unit (ideal, A) presents balanced ventilation and perfusion rates (fPAI) ratzo= 1). the behaviour of oxygen and carbon dioxide in the blood"8 facilitated substantial contributions to the numerical analysis of pulmonary gas exchange.9 These studies showed that traditional variables derived from physiological gases (Pao2, Paco2, alveolar-arterial Po2 difference (A-aPo2), venous admixture, and physiological dead space) are sensitive to VA/X mismatch, but they also vary with changes in total lung indices such as minute ventilation, cardiac output, and inspired Po2. This behaviour can lead to misinterpretations in the clinical setting. In the mid 1960s Farhi'° demonstrated the quantitative relation of the blood-gas partition coefficient (k) of a gas-the VA/Q ratio-and the capacity of …
Assessing Readiness for Integration of Electronic Learning into Business Education Programmes in Tertiary Institutions in Ebonyi State

The study was conducted to assess readiness for integration of electronic learning into business education programmes in tertiary institutions in Ebonyi State. Two research questions and two hypotheses guided the study. The population was 37 business education lecturers and 748 Business Education Students in tertiary institutions that offer Business Education programmes. All the business education lecturers and 486 Business Education students were used. This gave a sample size of 523. The instrument for data collection was a questionnaire. The reliability of the instrument was done using Cronbach alpha reliability computation. An overall reliability co-efficient index of 0.98 was obtained. A total of 524 copies of the instrument were administered to the respondents but 522 were correctly filled and returned. Mean, standard deviation and t-test statistical techniques were used to analyze the data collected and the hypotheses tested at 0.05 alpha level. Results from the data analyzed showed that most computer equipment needed for integration of e-learning are available in business education departments and Business Education lecturers possess skills necessary for integration of e-learning in their departments. The finding also revealed that there is significant difference in the use of computer resources in business education departments by students and lecturers and there is no significant difference on computer skills possessed by business education lecturers based on their gender. Based on the findings of the study, it was recommended, among others, that business education lecturers should be trained and retrained on emerging computer skills especially on the areas of uploading and securing data and government should upgrade computer resources in Business Education departments. Keywords : Readiness, Electronic Learning, Business Education, and Computer
Comparison of three methods for mitochondria isolation from the human liver cell line (HepG2)

Aim: The aim of this study was to evaluate and compare three available methods for mitochondrial isolation from a human cell line to predict the best method for each probable application. Background: Organelle isolation is gaining importance in experimental laboratory settings. Mitochondrial dysfunction may affect tumorgenesis process. There are some evidences that transplantation of healthy, intact and active mitochondria into cells containing defective mitochondria may reduce the proliferation. Therefore, isolated mitochondria could be considered as an effective tool for assessment and management of mitochondrial related disorders. Patients and methods: Mitochondrial isolation from the human liver cell line (HepG2) was performed using two commercially available kits, including Qproteome (Qiagen) and MITOISO2 (Sigma-Aldrich), as well as a manual method. Integrity of inner membrane of mitochondria was assessed by JC-1 staining. Activity of isolated mitochondria was evaluated by DCFH-DA staining, and total yield of isolated mitochondria determined by micro-Lowry method. Finally, relative quantification using Real-time PCR was conducted to compare the mtDNA copy number of mitochondria isolated by three different methods. Results: Compared to other methods, manual kit resulted in higher yields of total amount of mitochondrial protein and mtDNA copy numbers. Isolated mitochondria by Qproteome kit, showed a higher activity. Finally, the integrity of inner-membrane of isolated mitochondria was significantly higher in Qproteome when compared with the other two methods. Conclusion: Due to differences in quality, quantity and activity of isolated mitochondria using three techniques discussed here, the method in which best-suited to each research project should be selected according to the distinct features of isolated mitochondria.
Transcriptional and Proteolytic Regulation of the Toxin-Antitoxin Locus vapBC10 (ssr2962/slr1767) on the Chromosome of Synechocystis sp. PCC 6803

VapBC toxin-antitoxin (TA) systems are defined by the association of a PIN-domain toxin with a DNA-binding antitoxin, and are thought to play important physiological roles in bacteria and archaea. Recently, the PIN-associated gene pair PIN-COG2442 was proposed to encode VapBC-family TA system and found to be abundant in cyanobacteria. However, the features of these predicted TA loci remain under investigation. We here report characterization of the PIN-COG2442 locus vapBC10 (ssr2962/slr1767) on the chromosome of Synechocystis sp. PCC 6803. RT-PCR analysis revealed that the vapBC10 genes were co-transcribed under normal growth conditions. Ectopic expression of the PIN-domain protein VapC10 caused growth arrest of Escherichia coli that does not possess vapBC TA locus. Coincidentally, this growth-inhibition effect could be neutralized by either simultaneous or subsequent production of the COG2442-domain protein VapB10 through formation of the TA complex VapBC10 in vivo. In contrast to the transcription repression activity of the well-studied antitoxins, VapB10 positively auto-regulated the transcription of its own operon via specific binding to the promoter region. Furthermore, in vivo experiments in E. coli demonstrated that the Synechocystis protease ClpXP2s, rather than Lons, could cleave VapB10 and proteolytically activate the VapC10 toxicity. Our results show that the PIN-COG2442 locus vapBC10 encodes a functional VapBC TA system with an alternative mechanism for the transcriptional auto-regulation of its own operon.
Accuracy of traffic modeling in fast packet switching

Arrivals of calls, bursts, and packets to a fast packet switching system are governed by different time scales. This feature is used to break down the system performance analysis into layers. The impact of each layer on packet delay and blocking is investigated in isolation by assuming the global equilibrium in the next higher layer and deterministic flow of entities in all lower layers. The one-layer analytical model is developed and used to determine lower and upper estimates of a mean delay and blocking. Numerical results are compared with delays obtained from the multilayer simulation. Results of the analysis indicate that the channel utilization must be kept below a threshold value to avoid overload periods in the burst and call layers. Flow control techniques which can be used for that purpose are briefly discussed. >
Unsupervised detection of whispered speech in the presence of normal phonation

The results of an investigation into unsupervised detection of whispered speech segments in the presence of normally phonated speech are presented. The Whispered Speech Detection system presented here extracts features which exploit both waveform energy and periodicity. Unsupervised classification of these features was performed to identify and label long segments (approx. 2 2.5 seconds) of whispered speech which is typically an indication of criminal activity over telephone networks, for instance, in a correctional facility environment. Experiments indicate that it is possible to automatically detect long segments of whispering in the presence of normally phonated speech; testing of the algorithm presented in this paper yields promising results in correct identification of whispered speech segments.
A novel non-uniform node distribution strategy for wireless sensor networks

In wireless sensor networks, sensor nodes need to send sensing data to the sink node. Due to the limitation on the communication distance, some sensor nodes far from the sink node cannot send their data directly the sink node and need other nodes to relay their data to the sink node. The nodes near the sink node have to spend much energy to relay the data sent by the far nodes, and are, therefore, dying faster. When the near nodes all die, no data can be sent to the sink and the sensor network stops working, which is called the enery hole. We propose a novel non-uniform strategy to distribute the sensor nodes, which appropriately arranges the node density based on the distance to the sink node and can efficiently avoid the energy hole. This strategy is simulated on an NS2 platform. Simulation results confirms the proposed strategy can significantly extend the life of the sensor network, substantially increase the total transmitted data amount and avoid the energy hole.