LLukas22/scidocs huggingface dataset:
FPGA Based Reconfigurable Platform for Complex Image Processing

Field programmable gate arrays (FPGAs) are in use to build high performance DSP systems. FPGAs are uniquely suited to repetitive DSP tasks, such as multiply and accumulate (MAC) operations in parallel. As a result FPGAs can vastly outperform DSP chips, which perform operations in an essentially sequential fashion. The interfaces between FPGA and image sensor have been very slow, which inhibits possibility of exploiting parallel processing in the FPGA This paper discusses method to build an image-processing platform using FPGA. This involves interfacing of FPGA to CMOS image sensor and VGA monitor. We discuss techniques that helped attending speed of 50 FPS (Frames per Second) for an interface of CMOS image sensor to FPGA from earlier reported speed of 3 FPS. A benchmarking application has been executed on FPGA and DSP based system and comparative real time performance data is reported
Coenzyme Q10 Improves Endothelial Dysfunction in Statin-Treated Type 2 Diabetic Patients

OBJECTIVE
The vascular benefits of statins might be attenuated by inhibition of coenzyme Q(10) (CoQ(10)) synthesis. We investigated whether oral CoQ(10) supplementation improves endothelial dysfunction in statin-treated type 2 diabetic patients.


RESEARCH DESIGN AND METHODS
In a double-blind crossover study, 23 statin-treated type 2 diabetic patients with LDL cholesterol <2.5 mmol/l and endothelial dysfunction (brachial artery flow-mediated dilatation [FMD] <5.5%) were randomized to oral CoQ(10) (200 mg/day) or placebo for 12 weeks. We measured brachial artery FMD and nitrate-mediated dilatation (NMD) by ultrasonography. Plasma F(2)-isoprostane and 24-h urinary 20-hydroxyeicosatetraenoic acid (HETE) levels were measured as systemic oxidative stress markers.


RESULTS
Compared with placebo, CoQ(10) supplementation increased brachial artery FMD by 1.0 +/- 0.5% (P = 0.04), but did not alter NMD (P = 0.66). CoQ(10) supplementation also did not alter plasma F(2)-isoprostane (P = 0.58) or urinary 20-HETE levels (P = 0.28).


CONCLUSIONS
CoQ(10) supplementation improved endothelial dysfunction in statin-treated type 2 diabetic patients, possibly by altering local vascular oxidative stress.
Analyzing caching benefits for YouTube traffic in edge networks — A measurement-based evaluation

Recent studies observed video download platforms which contribute a large share to the overall traffic mix in today's operator networks. Traffic related to video downloads has reached a level where operators, network equipment vendors, and standardization organizations such as the IETF start to explore methods in order to reduce the traffic load in the network. Success or failure of these techniques depend on caching potentials of the target applications' traffic patterns. Our work aims at providing detailed insight into caching potentials of one of the leading video serving platforms: YouTube. We monitored interactions of users of a large operator network with the YouTube video distribution infrastructure for the time period of one month. From these traffic observations, we examine parameters that are relevant to the operation and effectiveness of an in-network cache deployed in an edge-network. Furthermore, we use our monitoring data as input for a simulation and determine the caching benefits that could have been observed if caching had been deployed.
Non‐Advertized does not Mean Concealed: Body Odour Changes across the Human Menstrual Cycle

The visual appearance of females of various primate species changes considerably across their menstrual cycle. These changes usually take place in the anogenital region and are commonly called sexual swellings. Sexual swellings are related to ovulation (e.g. Deschner et al. 2003), correlate with female sexual proceptivity (e.g. Wallis 1992) and are found to be attractive to males (Hrdy & Whitten 1987). Traditionally, human females are different from species which possess ‘sexual swelling’, with human Correspondence Jan Havlı́ček, Department of Anthropology, Faculty of Humanities, Charles University, Husnikova 2075, 158 00 Prague 13, Czech Republic. E-mail: jan.havlicek@fhs.cuni.cz
Joining Forces: A Study of Multinational Corporations' Sustainability Contributions to a Cross-Sector Social Partnership

Background: Cross-sector social partnership (CSSP) is a joint effort that utilizes resources from different sectors to solve social issues, such as poverty, pandemics and environmental degradation. ...
Comparison of Artificial Neural Network and Logistic Regression Models for Predicting In-Hospital Mortality after Primary Liver Cancer Surgery

BACKGROUND
Since most published articles comparing the performance of artificial neural network (ANN) models and logistic regression (LR) models for predicting hepatocellular carcinoma (HCC) outcomes used only a single dataset, the essential issue of internal validity (reproducibility) of the models has not been addressed. The study purposes to validate the use of ANN model for predicting in-hospital mortality in HCC surgery patients in Taiwan and to compare the predictive accuracy of ANN with that of LR model.


METHODOLOGY/PRINCIPAL FINDINGS
Patients who underwent a HCC surgery during the period from 1998 to 2009 were included in the study. This study retrospectively compared 1,000 pairs of LR and ANN models based on initial clinical data for 22,926 HCC surgery patients. For each pair of ANN and LR models, the area under the receiver operating characteristic (AUROC) curves, Hosmer-Lemeshow (H-L) statistics and accuracy rate were calculated and compared using paired T-tests. A global sensitivity analysis was also performed to assess the relative significance of input parameters in the system model and the relative importance of variables. Compared to the LR models, the ANN models had a better accuracy rate in 97.28% of cases, a better H-L statistic in 41.18% of cases, and a better AUROC curve in 84.67% of cases. Surgeon volume was the most influential (sensitive) parameter affecting in-hospital mortality followed by age and lengths of stay.


CONCLUSIONS/SIGNIFICANCE
In comparison with the conventional LR model, the ANN model in the study was more accurate in predicting in-hospital mortality and had higher overall performance indices. Further studies of this model may consider the effect of a more detailed database that includes complications and clinical examination findings as well as more detailed outcome data.
Clinical features and prognostic factors in adults with bacterial meningitis.

BACKGROUND
We conducted a nationwide study in the Netherlands to determine clinical features and prognostic factors in adults with community-acquired acute bacterial meningitis.


METHODS
From October 1998 to April 2002, all Dutch patients with community-acquired acute bacterial meningitis, confirmed by cerebrospinal fluid cultures, were prospectively evaluated. All patients underwent a neurologic examination on admission and at discharge, and outcomes were classified as unfavorable (defined by a Glasgow Outcome Scale score of 1 to 4 points at discharge) or favorable (a score of 5). Predictors of an unfavorable outcome were identified through logistic-regression analysis.


RESULTS
We evaluated 696 episodes of community-acquired acute bacterial meningitis. The most common pathogens were Streptococcus pneumoniae (51 percent of episodes) and Neisseria meningitidis (37 percent). The classic triad of fever, neck stiffness, and a change in mental status was present in only 44 percent of episodes; however, 95 percent had at least two of the four symptoms of headache, fever, neck stiffness, and altered mental status. On admission, 14 percent of patients were comatose and 33 percent had focal neurologic abnormalities. The overall mortality rate was 21 percent. The mortality rate was higher among patients with pneumococcal meningitis than among those with meningococcal meningitis (30 percent vs. 7 percent, P<0.001). The outcome was unfavorable in 34 percent of episodes. Risk factors for an unfavorable outcome were advanced age, presence of otitis or sinusitis, absence of rash, a low score on the Glasgow Coma Scale on admission, tachycardia, a positive blood culture, an elevated erythrocyte sedimentation rate, thrombocytopenia, and a low cerebrospinal fluid white-cell count.


CONCLUSIONS
In adults presenting with community-acquired acute bacterial meningitis, the sensitivity of the classic triad of fever, neck stiffness, and altered mental status is low, but almost all present with at least two of the four symptoms of headache, fever, neck stiffness, and altered mental status. The mortality associated with bacterial meningitis remains high, and the strongest risk factors for an unfavorable outcome are those that are indicative of systemic compromise, a low level of consciousness, and infection with S. pneumoniae.
A Practical Attack on Broadcast RC4

RC4 is the most widely deployed stream cipher in software applications. In this paper we describe a major statistical weakness in RC4, which makes it trivial to distinguish between short outputs of RC4 and random strings by analyzing their second bytes. This weakness can be used to mount a practical ciphertext-only attack on RC4 in some broadcast applications, in which the same plaintext is sent to multiple recipients under different keys.
The fluvial record of climate change.

Fluvial landforms and sediments can be used to reconstruct past hydrological conditions over different time scales once allowance has been made for tectonic, base-level and human complications. Field stratigraphic evidence is explored here at three time scales: the later Pleistocene, the Holocene, and the historical and instrumental period. New data from a range of field studies demonstrate that Croll-Milankovitch forcing, Dansgaard-Oeschger and Heinrich events, enhanced monsoon circulation, millennial- to centennial-scale climate variability within the Holocene (probably associated with solar forcing and deep ocean circulation) and flood-event variability in recent centuries can all be discerned in the fluvial record. Although very significant advances have been made in river system and climate change research in recent years, the potential of fluvial palaeohydrology has yet to be fully realized, to the detriment of climatology, public health, resource management and river engineering.
Psychology and personalism by William Stern

Abstract In 1916, shortly after his move from Breslau to Hamburg, William Stern wrote in a letter dated October 10 and addressed to his colleague and friend, the Freiburg philosopher Jonas Cohn, that the second volume of a planned three-volume series setting forth that comprehensive system of thought called ‘critical personalism’ was “essentially finished.” He wrote further that that work, in combination with a “little booklet” ( Broschure ) titled Psychology and Personalism ( Die Psychologie und der Personalismus ) should “fashion a bridge” between his philosophical and psychological teachings. Due to a paper shortage in Germany during World War I, the larger of the two works mentioned by Stern in this letter would not actually appear until 2 years later. The “little booklet,” however, could be published sooner, and in fact appeared in 1917. What follows is a translation of that work. It sets forth the principle tenets of critical personalism in a relatively concise and accessible way, and is thus not only worthy of attention in its own right but also offers readers of this Special Issue helpful background for the papers that follow. I am very grateful to Lothar Laux and Karl-Heinz Renner for their careful reading of an earlier draft of my translation against the original publication. As native speakers of German, Laux and Renner made numerous suggestions that I gladly implemented in the interest of improving the quality of the translation. For such infelicities as remain I take full responsibility.
MODELING PRINTED CIRCUIT BOARDS WITH EMBEDDED DECOUPLING CAPACITANCE

Embedded capacitance is an alternative to discrete decoupling capacitors and is achieved by enhancing the natural capacitance between power and ground planes. New materials have recently been developed by competing companies that promise to reduce the cost and improve the performance of boards with embedded capacitance. This paper introduces simple models for embedded capacitance boards and examines the properties of these boards that have the greatest impact on their effectiveness.
The relationships between communication, care and time are intertwined: a narrative inquiry exploring the impact of time on registered nurses' work.

AIM
To report a qualitative study which explores registered nurses' views on the issue of time in the workplace.


BACKGROUND
There is a worldwide shortage of healthcare workers, subsequently time as a healthcare resource is both finite and scarce. As a result, increased attention is being paid to the restructuring of nursing work. However, the experience of time passing is a subjective one and there exists little research which, over a prolonged period of time, describes nurses' experiences of working in time-pressurized environments.


DESIGN
A narrative inquiry.


METHOD
Five registered nurses were individually interviewed a total of three times over a period of 12 months, amounting to a total of 15 interviews and 30 hours of data. Data were collected and analysed following a narrative enquiry approach during the period 2008-2010.


FINDINGS
Participants describe how attempts to work more effectively sometimes resulted in unintended negative consequences for patient care and how time pressure encourages collegiality amongst nurses. Furthermore, the registered nurses' account of how they opportunistically create time for communication with patients compels us to re-evaluate the nature of communication during procedural nursing care.


CONCLUSION
Increasingly nursing work is translated into quantitative data or metrics. This is an inescapable development which seeks to enhance understanding of nursing work. However, qualitative research may also offer a useful approach which captures the otherwise hidden, subjective experiences associated with time and work. Such data can exist alongside nursing metrics, and together these can build a better and more nuanced consideration of nursing practice.
Nonoxidized, biologically active parathyroid hormone determines mortality in hemodialysis patients.

BACKGROUND
It was shown that nonoxidized PTH (n-oxPTH) is bioactive, whereas the oxidation of PTH results in a loss of biological activity.


METHODS
In this study we analyzed the association of n-oxPTH on mortality in hemodialysis patients using a recently developed assay system.


RESULTS
Hemodialysis patients (224 men, 116 women) had a median age of 66 years. One hundred seventy patients (50%) died during the follow-up period of 5 years. Median n-oxPTH levels were higher in survivors (7.2 ng/L) compared with deceased patients (5.0 ng/L; P = .002). Survival analysis showed an increased survival in the highest n-oxPTH tertile compared with the lowest n-oxPTH tertile (χ², 14.3; P = .0008). Median survival was 1702 days in the highest n-oxPTH tertile, whereas it was only 453 days in the lowest n-oxPTH tertile. Multivariable-adjusted Cox regression showed that higher age increased odds for death, whereas higher n-oxPTH reduced the odds for death. Another model analyzing a subgroup of patients with intact PTH (iPTH) concentrations at baseline above the upper normal range of the iPTH assay (70 ng/L) revealed that mortality in this subgroup was associated with oxidized PTH but not with n-oxPTH levels.


CONCLUSIONS
The predictive power of n-oxPTH and iPTH on the mortality of hemodialysis patients differs substantially. Measurements of n-oxPTH may reflect the hormone status more precisely. The iPTH-associated mortality is most likely describing oxidative stress-related mortality.
Micro-Biomechanics of the Kebara 2 Hyoid and Its Implications for Speech in Neanderthals

The description of a Neanderthal hyoid from Kebara Cave (Israel) in 1989 fuelled scientific debate on the evolution of speech and complex language. Gross anatomy of the Kebara 2 hyoid differs little from that of modern humans. However, whether Homo neanderthalensis could use speech or complex language remains controversial. Similarity in overall shape does not necessarily demonstrate that the Kebara 2 hyoid was used in the same way as that of Homo sapiens. The mechanical performance of whole bones is partly controlled by internal trabecular geometries, regulated by bone-remodelling in response to the forces applied. Here we show that the Neanderthal and modern human hyoids also present very similar internal architectures and micro-biomechanical behaviours. Our study incorporates detailed analysis of histology, meticulous reconstruction of musculature, and computational biomechanical analysis with models incorporating internal micro-geometry. Because internal architecture reflects the loadings to which a bone is routinely subjected, our findings are consistent with a capacity for speech in the Neanderthals.
Education for the engineering mission

Engineering involves such a wide range of human endeavor that it demands diversity and innovation in the preparation of its practitioners. Engineering effort can be divided into three major categories: engineering technology, engineering practice, and engineering science. The qualifications of individuals whose activities would fall into each of these mutually interdependent categories are examined, as are the problems involved in training these individuals.
Explaining public service broadcasting entrenched politicization: The case of South Africa’s SABC

Public service broadcasting is the terrain par excellence within today’s media systems on which political power and media logic interact and overlap. This study will argue that public service broad...
Efficacy of a tetravalent dengue vaccine in children in Latin America.

BACKGROUND
In light of the increasing rate of dengue infections throughout the world despite vector-control measures, several dengue vaccine candidates are in development.


METHODS
In a phase 3 efficacy trial of a tetravalent dengue vaccine in five Latin American countries where dengue is endemic, we randomly assigned healthy children between the ages of 9 and 16 years in a 2:1 ratio to receive three injections of recombinant, live, attenuated, tetravalent dengue vaccine (CYD-TDV) or placebo at months 0, 6, and 12 under blinded conditions. The children were then followed for 25 months. The primary outcome was vaccine efficacy against symptomatic, virologically confirmed dengue (VCD), regardless of disease severity or serotype, occurring more than 28 days after the third injection.


RESULTS
A total of 20,869 healthy children received either vaccine or placebo. At baseline, 79.4% of an immunogenicity subgroup of 1944 children had seropositive status for one or more dengue serotypes. In the per-protocol population, there were 176 VCD cases (with 11,793 person-years at risk) in the vaccine group and 221 VCD cases (with 5809 person-years at risk) in the control group, for a vaccine efficacy of 60.8% (95% confidence interval [CI], 52.0 to 68.0). In the intention-to-treat population (those who received at least one injection), vaccine efficacy was 64.7% (95% CI, 58.7 to 69.8). Serotype-specific vaccine efficacy was 50.3% for serotype 1, 42.3% for serotype 2, 74.0% for serotype 3, and 77.7% for serotype 4. Among the severe VCD cases, 1 of 12 was in the vaccine group, for an intention-to-treat vaccine efficacy of 95.5%. Vaccine efficacy against hospitalization for dengue was 80.3%. The safety profile for the CYD-TDV vaccine was similar to that for placebo, with no marked difference in rates of adverse events.


CONCLUSIONS
The CYD-TDV dengue vaccine was efficacious against VCD and severe VCD and led to fewer hospitalizations for VCD in five Latin American countries where dengue is endemic. (Funded by Sanofi Pasteur; ClinicalTrials.gov number, NCT01374516.).
High prevalence of asthma symptoms in Warao Amerindian children in Venezuela is significantly associated with open-fire cooking: a cross-sectional observational study

BACKGROUND
The International Study on Asthma and Allergies in Childhood (ISAAC) reported a prevalence of asthma symptoms in 17 centers in nine Latin American countries that was similar to prevalence rates reported in non-tropical countries. It has been proposed that the continuous exposure to infectious diseases in rural populations residing in tropical areas leads to a relatively low prevalence of asthma symptoms. As almost a quarter of Latin American people live in rural tropical areas, the encountered high prevalence of asthma symptoms is remarkable. Wood smoke exposure and environmental tobacco smoke have been identified as possible risk factors for having asthma symptoms.


METHODS
We performed a cross-sectional observational study from June 1, 2012 to September 30, 2012 in which we interviewed parents and guardians of Warao Amerindian children from Venezuela. Asthma symptoms were defined according to the ISAAC definition as self-reported wheezing in the last 12 months. The associations between wood smoke exposure and environmental tobacco smoke and the prevalence of asthma symptoms were calculated by means of univariate and multivariable logistic regression analyses.


RESULTS
We included 630 children between two and ten years of age. Asthma symptoms were recorded in 164 of these children (26%). The prevalence of asthma symptoms was associated with the cooking method. Children exposed to the smoke produced by cooking on open wood fires were at higher risk of having asthma symptoms compared to children exposed to cooking with gas (AOR 2.12, 95% CI 1.18 - 3.84). Four percent of the children lived in a household where more than ten cigarettes were smoked per day and they had a higher risk of having asthma symptoms compared to children who were not exposed to cigarette smoke (AOR 2.69, 95% CI 1.11 - 6.48).


CONCLUSION
Our findings suggest that children living in rural settings in a household where wood is used for cooking or where more than ten cigarettes are smoked daily have a higher risk of having asthma symptoms.
Emergence of Political Unionism in Economies of British Colonial Origin: The Cases of Jamaica and Trinidad

Abstract. What were the circumstances under which political unionism has emerged in economies of British colonial origin, such as Jamaica and Trinidad? The hypothesis tested is that the political activities of trade unions in such economies played a role in the process of economic development, helping to achieve political independence and then economic growth. But at that stage political unionism is found to be incompatible with needed acceleration of growth rates. A significant deterioration in economic and social conditions produced a crisis and the unions traded support for the parties for some control over economic and social policy. This gave the political leaders the power they needed to negotiate for independence but, in Jamaica, it changed the focus and character of the labor movement.