Miracle-dz/UniFAR-FTUs huggingface dataset:
An under voltage load shedding optimization method based on the online voltage stability analysis

The under voltage load shedding (UVLS) is an effective measure to prevent voltage collapse in power systems. The voltage stability varies with the system operation conditions and the under voltage load shedding strategies need to be adjusted in real time. In this paper, a strategy formulation method of UVLS is presented based on the on-line voltage stability indicator. First, the minimum singular value of the load flow Jacobian matrix is selected as the on-line voltage stability indicator. Then, the sensitivity of minimum singular with load is used to select the locations of load shedding in the premise of guaranteeing important load. Moreover, the Particle Swarm Optimization (PSO) is applied to determine the amount of load to be shed. Finally, the strategy of centralized under voltage load shedding is made. The simulation results of the New England 10-machine 39-bus system indicate that the system can be restored the voltage stability with the minimum amount of load shedding.
An early temperature‐sensitive period for the plasticity of segment number in the centipede Strigamia maritima

Geophilomorph centipedes show variation in segment number (a) between closely related species and (b) within and between populations of the same species. We have previously shown for a Scottish population of the coastal centipede Strigamia maritima that the temperature of embryonic development is one of the factors that affects the segment number of hatchlings, and hence of adults, as these animals grow epimorphically—that is, without postembryonic addition of segments. Here, we show, using temperature‐shift experiments, that the main developmental period during which embryos are sensitive to environmental temperature is surprisingly early, during blastoderm formation and before, or very shortly after, the onset of segmentation.
Hyponatremia During Arginine Vasopressin Therapy in Children Following Cardiac Surgery

Objective: To describe the incidence and severity of hyponatremia after initiation of arginine vasopressin therapy in children recovering from cardiothoracic surgery, and to compare these patients with a control group with similar disease complexity and severity who did not receive arginine vasopressin. Design: Retrospective chart review. Setting: PICU at a tertiary care university hospital. Patients: Twenty-nine patients who received arginine vasopressin for at least 6 hours during the first 48 postoperative hours following cardiothoracic surgery were compared with 47 patients who did not receive arginine vasopressin. After surgery, all patients received intravenous fluids consisting of dextrose and 0.22% saline for daily fluid requirements as well as isotonic colloid and blood products as needed for additional resuscitation. Results: Mean initial postoperative serum sodium did not differ between groups, 144.6 ± 3.4 in those patients who received arginine vasopressin and 144.5 ± 3.7 in those who did not, p = 0.969. Mean lowest sodium in the first 72 hours, however, was 134.7 ± 3.8 in those who received arginine vasopressin as compared with 137.1 ± 4.3 in the control group, p = 0.019. Hyponatremia occurred in 14 of the patients (48%) who received arginine vasopressin but only in 8 of the patients (17%) in the control group, p = 0.004. Mean age, weight, sex, Aristotle score, and duration of cardiopulmonary bypass were not statistically different between groups. Mean volumes of hypotonic fluids administered and cumulative diuretic dosing during the first 72 hours post-surgery were also not statistically different between groups. Conclusions: Hyponatremia occurred in nearly half of the infants and children receiving arginine vasopressin therapy in this study. Clinicians should be aware of this association, monitor serum sodium values closely, and consider providing less free water to these patients before hyponatremia occurs.
An Action – Identifying Noise Traders Entering the Market with Google and Twitter

In this paper we measure and compare the impact of changes in Google search volume (GSV) and Twitter volume (TV) on financial markets. We find that information investors access via Google and Twitter have an impact on financial markets and predictive power. The impact of TV is more important. First, changes in GSV and TV have a positive impact on changes in turnover. Traders enter the market (Easley et al. 1996). Second, we show that changes in TV increase the share of noise traders on the market (De Long et al. 1990), while changes in GSV have no significant impact. Our results suggest that we are able to measure investor sentiment with TV. Further, we expect that the different impact of GSV and TV lies in the different use of Google and Twitter by investors.
The Impact of Brand Image and Discounted Price on Purchase Intention in Outlet Mall: Consumer Attitude as Mediator

Outlet malls have become important retail spaces. In order to understand the influence of outlet malls’ brand image and discounted price on purchase intention, and to explore the mediating effect of consumer attitude in this model, the present study used an outlet mall in southern Taiwan as a case study. A questionnaire of outlet mall consumers was conducted and structural equation modeling (SEM) was used to analyze the results. The results show that brand image does indeed influence consumers' purchase intention. However, when the mediating variable of consumer attitude was included, the relationship was fully mediated. This showed that for the brand image of outlet malls to obtain the benefit of encouraging the purchase intention of consumers, a supportive attitude of consumers is necessary. In other words, it is necessary to win the trust of consumers. Since the most important features of malls—discounted prices—are equivalent to long-term price promotions, they also significantly influence consumers' purchase intention. In addition, consumers are increasingly demanding that outlet malls provide more diverse and leisure-orientated functions. This development should be an important focus for both researchers and operators of outlet malls.
Socio-demographic determinants of health support services among orphans and vulnerable children in Nigeria

Worldwide, the population of orphans and vulnerable children is estimated to be around 160 million with sub-Sahara Africa accounting for 80% of these children owing largely to the effect of HIV/AIDS, civil wars, road accidents, sectarian violence, terrorism, and other factors. Efforts have been made over the years by governments and development partners to mitigate the effects of orphanhood, but these efforts have failed to achieve the required objectives because various socio-demographic factors influence receipt of support services provided to OVC. This study therefore, examined the socio-demographic determinants of child health support services provided to OVC in Nigeria by employing a cross sectional research design utilizing secondary data obtained from the household recoded dataset of the 2013 Nigeria Demographic Health Survey (NDHS) and analyzed at univariate, bivariate, and multivariate levels (n=5114). The findings showed that region and age of child influenced receipt of health support at the bivariate level (p<0.05). Furthermore, at the multivariate level, only region of residence was significantly associated with the receipt of health support as residence in the North East, North West, and South South regions significantly influenced receipt of health support services by OVC in these regions (p<0.05). The study concluded that socio-demographic factors influenced health support services provided to OVC and recommends that interventions should ensure an equity-focused approach based on vulnerability status of children in providing support services. Also, innovative and integrated approaches should be employed in identification, service provision, tracking and monitoring of services provided to OVC in Nigeria. Key words: Nigeria demographic health survey, sub-Saharan Africa, orphanhood.
Toward an accurate frequency standard at 1.5 μm based on the acetylene overtone band transition

We have made a frequency standard operating at the 1.5 /spl mu/m region using the saturated absorption of the v/sub 1/+v/sub 3/ band of /sup 13/C/sub 2/H/sub 2/. To enhance the moderate power from a laser diode and to saturate a very weak molecular overtone transition, we used a Fabry-Perot (FP) cavity and inside of it we put an acetylene cell. In order to obtain a longer life time for the cell, we designed a new scheme consisting of a cavity with a ULE (ultralow expansion) glass spacer and a baked and sealed-off cell with Brewster windows. We observed the saturated spectrum having a 1 MHz spectral linewidth. The signal obtained using the same cell ten months later had the same signal-to-noise ratio (SNR) and spectral linewidth. We made two versions of the frequency standard and observed a beat note between these two lasers from which we derived the frequency stability, in terms of the square root of the Allan variance /spl sigma/(/spl tau/)=2.4/spl times/10/sup -13/ at an integration time /spl tau/=1000 s.
Leveraged buyout booms and busts: can Islamic finance help prevent and mitigate such market distortions?

The industry of private equity and leveraged buyout has been, since its beginnings, subject to several chapters of bubbles and busts, the majority of whom are initiated under similar circumstances (excess of liquidity, junk debt and mimetic behavior). The Islamic finance is a financial system that complies with the rules of the Sharia Law, and which naturally allows the achievements of purposes of Sharia, such as protection of property and capital, fair wealth distribution, reduction of uncertainty and speculation, to name a few.From this perspective, this paper discusses the capacity of Islamic finance to help prevent some factors that trigger financial crises in the leveraged buyout market and to accomplish the intended purposes through this asset class.In the first part of this paper, the authors try to break down some of these common factors that trigger or catalyze the economic booms of the leverage buyout industry, and propose a framework to visualize their effects through an agent-based Simulation program. The second part of the paper describes how Islamic economic principles constitute brakes to some distortions and excesses in the market, in such a way that the probability of occurrence of a boom decreases drastically. Finally, these Islamic features are added up to the simulation to provide a comprehensive benchmark.
Nailfold capillaroscopy and classification criteria for systemic sclerosis.

1Research Laboratory and Academic Clinical Unit of Rheumatology, University of Genova; 2Department of Medicine, Division of Rheumatology, University of Florence, Italy. Maurizio Cutolo, MD; Marco Matucci Cerinic, MD, Professor. Please address correspondence to: Maurizio Cutolo, MD, Research Laboratory and Academic Clinical Unit of Rheumatology, University of Genova, Viale Benedetto XV, 6 – 16132 Genova, Italy. E-mail: mcutolo@unige.it Received and accepted on August 6, 2007. © Copyright CLINICAL AND EXPERIMENTAL RHEUMATOLOGY 2007.
Attention Mechanisms in Visual SearchAn fMRI Study

The human visual system is usually confronted with many different objects at a time, with only some of them reaching consciousness. Reaction-time studies have revealed two different strategies by which objects are selected for further processing: an automatic, efficient search process, and a conscious, so-called inefficient search [Treisman, A. (1991). Search, similarity, and integration of features between and within dimensions. Journal of Experimental Psychology: Human Perception and Performance, 17, 652-676; Treisman, A. , & Gelade, G. (1980). A feature integration theory of attention. Cognitive Psychology, 12, 97-136; Wolfe, J. M. (1996). Visual search. In H. Pashler (Ed.), Attention. London: University College London Press]. Two different theories have been proposed to account for these search processes. Parallel theories presume that both types of search are treated by a single mechanism that is modulated by attentional and computational demands. Serial theories, in contrast, propose that parallel processing may underlie efficient search, but inefficient searching requires an additional serial mechanism, an attentional spotlight (Treisman, A., 1991) that successively shifts attention to different locations in the visual field. Using functional magnetic resonance imaging (fMRI), we show that the cerebral networks involved in efficient and inefficient search overlap almost completely. Only the superior frontal region, known to be involved in working memory [Courtney, S. M. , Petit, L. , Maisog, J. M. , Ungerleider, L. G. , & Haxby, J. V. (1998). An area specialized for spatial working memory in human frontal cortex. Science, 279, 1347-1351], and distinct from the frontal eye fields, that control spatial shifts of attention, was specifically involved in inefficient search. Activity modulations correlated with subjects' behavior best in the extrastriate cortical areas, where the amount of activity depended on the number of distracting elements in the display. Such a correlation was not observed in the parietal and frontal regions, usually assumed as being involved in spatial attention processing. These results can be interpreted in two ways: the most likely is that visual search does not require serial processing, otherwise we must assume the existence of a serial searchlight that operates in the extrastriate cortex but differs from the visuospatial shifts of attention involving the parietal and frontal regions.
THE EFFECT OF CORPORATE SOCIAL RESPONSIBILITY ON THE FIRM’S FINANCIAL PERFORMANCE

The objective of this research is to investigate the relationship between the corporate social responsibility and the firm’s financial performance. This relationship has been a very important issue and topic of great interest for researchers since from the origin of business entities. Therefore the aim of this study is to explore the nature of relationship between CSR and financial performance in the context of Egypt using a sample of 30 firms (firms listed on EGX 30) from 2007 to 2010. The sample was from a range of industrial sectors. We measured the corporate social responsibility by the S&P/EGX ESG Index, which is the only single source that offers published data regarding social corporate responsibility. The Corporate financial performance is measured by ROA and EPS. We find a positive and significant relation between corporate financial performance and the CSR. This result actually motivates organizations to think broadly about their obligations towards the society in which they operate rather than just maximizing their wealth
The Roles of S100 Proteins and RAGE in Melanoma

The incidence of melanoma continues to rise worldwide and increases annually by 4% to 6% in the United States (Darrell and Rigel 2010). Once metastatic, invasive melanoma offers poor prognosis to patients (Bhatia, Tykodi and Thompson, 2009). The classic prognostic factors in melanoma include primary tumor thickness, patient gender, primary melanoma ulceration, mitotic activity and the presence of tumor infiltrating lymphocytes (Spatz et al. 2010). Besides these established prognostic markers, the S100 protein family member S100B has emerged in recent years as a new prognostic marker and is now incorporated into the American Joint Committee on Cancer (AJCC) melanoma staging system for stage IV melanoma patients (Balch et al. 2009; Chun et al. 2008; Gogas et al. 2009). High S100B serum concentration correlates with poor survival rate (Hauschild et al. 1999). Current studies are also analyzing the prognostic value of S100B in earlier melanoma stages (IIB-III) (Bouwhuis et al. 2010). The role of S100B in the progression of melanoma is not clearly understood. For instance, although it is established that S100B is released from melanoma tumor cells, its role in tumor development, invasion and metastasis is currently under investigation. This chapter will discuss the role of S100B and other members of the S100 protein family in the biology of melanoma. We will focus on the relation between the S100 proteins and their common receptor, the receptor for advanced glycation endproducts (RAGE), in the context of melanoma.
FROM BLUE STAR-FORMING TO RED PASSIVE: GALAXIES IN TRANSITION IN DIFFERENT ENVIRONMENTS

Exploiting a mass-complete (M* > 1010.25 M☉) sample at 0.03 <z < 0.11 drawn from the Padova Millennium Galaxy Group Catalog, we use the (U − B)rf color and morphologies to characterize galaxies, in particular those that show signs of an ongoing or recent transformation of their star-formation activity and/or morphology: green galaxies, red passive late types, and blue star-forming early types. Color fractions depend on mass and only for M* < 1010.7 M☉ on environment. The incidence of red galaxies increases with increasing mass, and, for M* < 1010.7 M☉, decreases toward the group outskirts and in binary and single galaxies. The relative abundance of green and blue galaxies is independent of environment and increases monotonically with galaxy mass. We also inspect galaxy structural parameters, star-formation properties, histories, and ages and propose an evolutionary scenario for the different subpopulations. Color transformations are due to a reduction and suppression of the star-formation rate in both bulges and disks that does not noticeably affect galaxy structure. Morphological transitions are linked to an enhanced bulge-to-disk ratio that is due to the removal of the disk, not to an increase of the bulge. Our modeling suggests that green colors might be due to star-formation histories declining with long timescales, as an alternative scenario to the classical “quenching” processes. Our results suggest that galaxy transformations in star-formation activity and morphology depend neither on the environment nor on being a satellite or the most massive galaxy of a halo. The only environmental dependence we find is the higher fast quenching efficiency in groups giving origin to poststarburst signatures.
Polarimetric analysis of fine resolution X-band SAR sea clutter data

The DSTO Ingara multi-mode X-Band radar collected fine resolution fully polarimetric sea clutter data over a wide variety of sea states, incidence and azimuth angles. Analysis includes polarimetric decomposition and estimation of K distribution clutter statistics. The results show the backscatter is in the low entropy surface scatter zone associated with the Bragg scattering expected from the sea surface, and the K-distribution shape parameter υ has a variation in azimuth angle strongly coupled to the mean backscatter in the VV and HV polarizations.
Lavage Solution Temperature Influences Depth of Chondrocyte Death and Surface Contouring during Thermal Chondroplasty with Temperature-Controlled Monopolar Radiofrequency Energy

Background: Although radiofrequency energy can smooth and contour cartilage surface, it has deleterious effects on chondrocyte viability. Hypothesis: Monopolar thermal chondroplasty in a 37°C lavage solution, as compared with a 22° lavage solution, will reduce chondrocyte death and result in greater smoothing of the articular cartilage surface. Study Design: Controlled laboratory study. Methods: Sixteen chondromalacic samples from patients undergoing total knee arthroplasty were divided into two groups: 22°C and 37°C lavage solution. Each sample was divided into two equal parts and half of each group was treated for 10 seconds and the other half for 15 seconds. Results: Confocal laser microscopy demonstrated that the depth of chondrocyte death in the 37°C lavage solution group was significantly less (range, 200 to 340 μm) than that in the 22°C solution group for both 10- and 15-second treatment times. Scanning electron microscopy demonstrated that the cartilage surface in the 37°C lavage solution group was smoother than that in the 22°C solution group for the 10-second treatment time. Energy delivery power in the 37°C lavage solution group was significantly lower than in the 22°C solution group for both treatment times. Conclusions: Thermal chondroplasty with 37°C lavage solution resulted in less depth of chondrocyte death and produced smoother surfaces than with 22°C solution for 10 seconds of treatment. Clinical Relevance: Less chondrocyte death would permit increased use of thermal chondroplasty.
Anti-MAG antibody-associated polyneuropathies

Treatment outcomes of sensory-motor polyneuropathies associated with anti--myelin-associated glycoprotein (MAG) antibodies have varied even with relatively intensive immunosuppression. We used plasma exchange and cyclophosphamide to treat four patients with anti-MAG antibody-associated polyneuropathies whose symptoms had progressed in the preceding year. Treatment courses consisted of five to seven monthly regimens of plasma exchange on 2 consecutive days followed by intravenous cyclophosphamide (1 g/m2). Effects of treatment were quantitatively measured with hand-held dynamometry. All four patients showed improvement in both strength and sensation in the 5 to 24 months after treatment. We conclude that selected patients with sensory-motor polyneuropathies associated with high-titer serum IgM autoantibodies against MAG may have quantitative and useful functional improvement after immunotherapy. The improvement continues after completion of treatment and may persist for 1 to 2 years or longer. NEUROLOGY 1995;45: 1577-1580
1,3-Propanediol Dehydrogenase from Klebsiella pneumoniae: Decameric Quaternary Structure and Possible Subunit Cooperativity

ABSTRACT Klebsiella pneumoniae is a nosocomial pathogen frequently isolated from opportunistic infections, especially in clinical environments. In spite of its potential pathogenicity, this microorganism has several metabolic potentials that could be used in biotechnology applications. K. pneumoniae is able to metabolize glycerol as a sole source of carbon and energy. 1,3-Propanediol dehydrogenase is the core of the metabolic pathway for the use of glycerol. We have determined the crystallographic structure of 1,3-propanediol dehydrogenase, a type III Fe-NAD-dependent alcohol dehydrogenase, at 2.7-Å resolution. The structure of the enzyme monomer is closely related to that of other alcohol dehydrogenases. The overall arrangement of the enzyme showed a decameric structure, formed by a pentamer of dimers, which is the catalytic form of the enzyme. Dimers are associated by strong ionic interactions that are responsible for the highly stable in vivo packing of the enzyme. Kinetic properties of the enzyme as determined in the article would suggest that this decameric arrangement is related to the cooperativity between monomers.
Getting Things Done

This book explores the possibility of a progressive and transformative management which, while grounded in the analytic tradition and values of CMS, also confronts practical demands of meeting social needs. The format of the book is a discussion between and among CMS scholars with diverse viewpoints on CMS and critical engagement, and with different subject positions and domains of engagement. In the critical tradition, the book also gives voice to those who question a simple translation of theory into practice, as well as raising questions around the potential and limits to a progressively transformative management.
Innovation in pharma companies : an investigation of R&D and external knowledge acquisition

The study builds on the theoretical assumptions that extramural knowledge plays a crucial role for innovation and firms have the ability to acquire such knowledge. Inspired by the rise of biotechnology and big pharma's increasing reliance on internal and external RD a role highly dependent on R&D investments. Despite their importance for obtaining inventions, the study provided evidence that collaborations have limited impacts on big pharma's learning and capability building.