Miracle-dz/UniFAR-FTUs huggingface dataset:
Research on Overvoltage for XLPE Cable in a Modular Multilevel Converter HVDC Transmission System

Due to the rapid development of the voltage-source converter (VSC), the demands for HVDC cables have increased significantly. Although more than ten VSC-HVDC projects are under construction and many more are in operations globally, the testing criteria for HVDC XLPE cables are mainly referenced to test guideline TB 496 recommended by CIGRE. Due to the large stray capacitance of the VSC-HVDC cables, the switching impulse overvoltage stress of the cables is the main electrical parameter concerned, a unified overvoltage factor of 2.1 p.u. being generally accepted. However, the switching impulse overvoltage stress of a VSC-HVDC cable system depends on not only the VSC topology but also the cable parameters and the volt-ampere characteristics of the dc cable surge arresters used. This paper studies the switching impulse overvoltage stresses for the dc cable system of a symmetrical monopole VSC-HVDC transmission system using the modular multilevel converter technology. The studies were performed according to the key technical parameters for a typical 1000-MW/320-kV VSC-HVDC transmission scheme, the XLPE dc cable links being assumed. The results show that a switching impulse overvoltage level of 2.3 p.u. should be applied during the type test of the overvoltage capability of the HVDC cables.
Alteration in Phospholipidome Profile of Myoblast H9c2 Cell Line in a Model of Myocardium Starvation and Ischemia

Myocardium infarction is one of the most deathly cardiovascular diseases. It is characterized by myocardium ischemia as a result of nutrients depletion and hypoxia. The cell can respond to this injury by autophagy or apoptosis, which determines the evolution and possible recovery of the myocardium infarction. Lipids play an important role in cardiovascular disease. However reports stating lipidome variations in cardiovascular disease are scarce and the role that lipids play in this pathological condition is not completely understood. The aim of this work was to identify changes in lipid profile of a myoblast H9c2 cell line under starvation and ischemia, to better understand and recognize new biomarkers for myocardial infarction. Lipidomic profile was evaluated by HILIC‐LC‐MS and GC‐MS. Cardiac cells showed alterations in phosphatidylcholines PC (34:1) and PC (36:2), lysophosphatidylcholines lyso PC(16:0), lysoPC(18:1) and lysoPC(18:0), phosphatidylethanolamine PE (34:1), phosphatidylserine PS (36:1), phosphatidylinositol PI (36:2), PI (38:3) and PI (38:5), sphingomyelin SM (34:1) and cardiolipins CL(68:4), CL(72:5) and CL(74:7) in ischemia and/or starvation, in comparison with control. Specific differences observed only in starvation were decrease of SM (34:1) and FA (20:4), and increase of PS (36:1). Differences observed only in ischemia were decrease of PC (36:2), lyso PC (16:0) and FA (18:1) and simultaneous increase of FA (16:0), and FA (18:0). Interestingly, PC (34:1) increased in ischemia and decreased in starvation. In conclusion, our work suggests that lipids are potential markers for evaluation of cell fate, either cell death or recovery, which will be useful to improve diagnosis and prognostic of cardiovascular diseases. J. Cell. Physiol. 231: 2266–2274, 2016. © 2016 Wiley Periodicals, Inc.
Robust landmark-based image registration using l1 and l2 norm regularizations

In landmark-based image registration, estimation of transformation based on radial basis functions (RBFs) expansions has been successfully utilized in many applications. A novel landmark-based image registration method regularized by l1 and l2 norm is proposed in this paper to estimate transformations based on corresponding landmarks. The compact supported radial basis functions (CSRBFs) are utilized in our method. To estimate the CSRBFs coefficients of transformations, we construct a linear model and respectively regularize the elastic and affine deformation coefficients by l1 and l2 norm. Experiments show that the transformations estimated by our method are robust to noised correspondences of landmarks, the bending energy of transformations is less and topology of the deformation field can be preserved better than existing other methods.
Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample

We describe the target selection and resulting properties of a spectroscopic sample of luminous red galaxies (LRGs) from the imaging data of the Sloan Digital Sky Survey (SDSS). These galaxies are selected on the basis of color and magnitude to yield a sample of luminous intrinsically red galaxies that extends fainter and farther than the main flux-limited portion of the SDSS galaxy spectroscopic sample. The sample is designed to impose a passively evolving luminosity and rest-frame color cut to a redshift of 0.38. Additional, yet more luminous red galaxies are included to a redshift of ∼0.5. Approximately 12 of these galaxies per square degree are targeted for spectroscopy, so the sample will number over 100,000 with the full survey. SDSS commissioning data indicate that the algorithm efficiently selects luminous (M ≈ -21.4) red galaxies, that the spectroscopic success rate is very high, and that the resulting set of galaxies is approximately volume limited out to z = 0.38. When the SDSS is complete, the LRG spectroscopic sample will fill over 1 h-3 Gpc3 with an approximately homogeneous population of galaxies and will therefore be well suited to studies of large-scale structure and clusters out to z = 0.5.
Combining naive bayes and adjective analysis for sentiment detection on Twitter

Twitter is an emerging platform to express the opinion on various issues. Plenty of approaches like machine learning, information retrieval and NLP have been exercised to figure out the sentiment of the tweets. We have used movie reviews as our data set for training as well as testing and merged the naive bayes and adjective analysis for finding the polarity of the ambiguous tweets. Experimental outputs reveal that the overall accuracy of the process is improved using this model. Firstly we have applied naive bayes on collected tweets which results in set of truly polarized and falsely polarized tweets. False polarized set is further processed with adjective analysis to determine the polarity of tweets and classify it to be positive or negative.
On the mediating role of subtypes of rumination in the relationship between childhood emotional abuse and depressed mood: brooding versus reflection

Background: We examined the mediating role of rumination in the relationship between emotional abuse and depression, focusing on two subtypes of rumination: reflection versus brooding. Methods: Students (n=101) completed the Emotional Abuse subscale of the Childhood Trauma Questionnaire; the Ruminative Response Scale; and the Beck Depression Inventory. Results: Rumination was found to mediate the relationship between childhood emotional abuse and depressive symptoms. Further analyses showed that this was only the case for the brooding but not the reflective subtype of rumination. Conclusions: Results further evidence the role of rumination as a mediator of the relationship between childhood maltreatment and depression, and are consistent with the recently proposed distinction between different subtypes or forms of rumination. Depression and Anxiety, 2008. © 2007 Wiley‐Liss, Inc.
Effects of weight loss in overweight/obese individuals and long‐term lipid outcomes – a systematic review

This paper aims to review the evidence for long‐term effectiveness of weight loss on cholesterol, high‐density lipoprotein (HDL), low‐density lipoprotein (LDL) and triglycerides in overweight/obese people. Current evidence is mostly based on short‐term studies. A systematic review of long‐term lipid outcomes of weight loss in studies published between 1966 and 2001, was conducted. Inclusion criteria included all cohort studies and trials carried out on participants with body mass index of greater than or equal to 28 kg m−2. Studies had at least two weight change measurements and follow‐up of more than 2 years. Thirteen long‐term studies with a follow‐up of more than 2 years were included. Cholesterol has a significant positive linear relationship with weight change (r = 0.89) where change in weight explains about 80% of the cholesterol difference variation (Adj R2 = 0.80). For every 10 kg weight loss a drop of 0.23 mmol L−1 in cholesterol may be expected for a person suffering from obesity or are grossly overweight. Weight loss has long‐term beneficial effects especially on LDL and cholesterol. Weight loss in obese patients should be encouraged and sustained.
FLIPDIAL: A Generative Model for Two-Way Visual Dialogue

We present FLIPDIAL, a generative model for Visual Dialogue that simultaneously plays the role of both participants in a visually-grounded dialogue. Given context in the form of an image and an associated caption summarising the contents of the image, FLIPDIAL learns both to answer questions and put forward questions, capable of generating entire sequences of dialogue (question-answer pairs) which are diverse and relevant to the image. To do this, FLIPDIAL relies on a simple but surprisingly powerful idea: it uses convolutional neural networks (CNNs) to encode entire dialogues directly, implicitly capturing dialogue context, and conditional VAEs to learn the generative model, FLIPDIAL outperforms the state-of-the-art model in the sequential answering task (1VD) on the VisDial dataset by 5 points in Mean Rank using the generated answers. We are the first to extend this paradigm to full two-way visual dialogue (2VD), where our model is capable of generating both questions and answers in sequence based on a visual input, for which we propose a set of novel evaluation measures and metrics.
Detection of duplicated regions in images using 1D-Fourier transform

Large number of digital images and videos are acquired, stored, processed and shared nowadays. High quality imaging hardware and low cost, user friendly image editing software make digital mediums vulnerable to modifications. One of the most popular image modification techniques is copy move forgery. This tampering technique copies part of an image and pastes it into another part on the same image to conceal or to replicate some part of the image. Researchers proposed many techniques to detect copy move forged regions of images recently. These methods divide image into overlapping blocks and extract features to determine similarity among group of blocks. Selection of the feature extraction algorithm plays an important role on the accuracy of detection methods. Column averages of 1D-FT of rows is used to extract features from overlapping blocks on the image. Blocks are transformed into frequency domain using 1D-FT of the rows and average values of the transformed columns form feature vectors. Similarity of feature vectors indicates possible forged regions. Results show that the proposed method can detect copy pasted regions with higher accuracy compared to similar works reported in the literature. The method is also more resistant against the Gaussian blurring or JPEG compression attacks as shown in the results.
Linear programmable gain amplifier using reconfiguration local-feedback transconductors

This paper proposes a linear PGA (programmable gain amplifier) using reconfiguration local-feedback transconductors for a FPW (flexural plate-wave) allergy biosensor. By using the LFT (local-feedback transconductors), the transconductance of the proposed PGA is linear against the input voltage. By using the proposed reconfiguration methods, the transconductance behaves as the pseudo-exponential approximation function of the digital control bits. Thus, the gain error of the linear PGA is simulated to be 0.25 LSB with dynamic gain range of 45.13 dB (-24.17~20.96 dB). The proposed linear PGA is implemented by using a typical 0.18 μm CMOS process. The power consumption is 9.59 mW for 20 pF capacitive load at 20 MHz. The core area of the proposed design is 0.838×0.838 mm2.
A Utility-Based Resource and Network Assignment Framework for Heterogeneous Mobile Networks

Network utility theory has been extensively employed for resource management purposes. However, traditional utility functions cannot support attributes that affect the resource allocation, such as mobility or more advanced traffic models. Especially in the context of a heterogeneous wireless network, transient parameters can have varying effects on each access network type. This work proposes a new utility function that can support multiple design requirements for mobile networks including advanced traffic models, user classes, handover and session priorities. We integrate the new utility function with the Super Base Station framework and devise a novel trigger-based network and resource assignment framework that efficiently copes with the complexity of a heterogeneous wireless network. Our simulation results show that the proposed sub-optimal trigger-based framework performs equally well as the complex optimal scheme.
Long-chain alkanoic acid esters of lupeol from Dorstenia harmsiana Engl. (Moraceae)

In addition to lupeol (1a), three long-chain alkanoic acid esters of lupeol, in which two were new, were isolated from the hexane and ethyl acetate twigs extract of Dorstenia harmsiana Engl. (Moraceae). The structures of the new compounds were elucidated on the basis of 1D and 2D NMR experiments. Some isolated compounds were evaluated for their antimicrobial activities. The lupeol and its three long-chain alkanoic acid esters showed antifungal and antibacterial activities.
Hsp90 Orchestrates Stress Response Signaling Governing Fungal Drug Resistance

The emergence of drug resistance in microbial pathogens provides a poignant example of an evolutionary process with a profound impact on human health. Fungal drug resistance poses a particular concern given the limited number of clinically useful antifungal drugs and the growing population of immunocompromised individuals vulnerable to life-threatening fungal disease [1]. The efficacy of most antifungal drugs is compromised either by host toxicity, fungistatic rather than fungicidal activity, or by the emergence of drug resistance. Recent studies have revealed that compromising the function of the molecular chaperone Hsp90 can render resistant pathogens more responsive to treatment and can thwart the evolution of fungal drug resistance [2].
Evaluation of a DNA Extraction and Purification Protocol Using Archived Formalin-fixed Paraffin-embedded Tissues for BRAF Mutations Analysis in Papillary Thyroid Microcarcinomas

The isolation of good quality genomic DNA from formalin-fixed, paraffin-embedded tissues is challenging, especially in cases of small tissue specimens. The aim of our study was to evaluate a DNA extraction protocol using formalin-fixed, paraffin-embedded tissues in our laboratory and apply this method to a series of papillary thyroid microcarcinomas (PTMCs). A total of 25 PTMCs and 3 papillary thyroid carcinoma control cases were included in the study. We assessed a DNA extraction protocol on the basis of a precipitation method (MasterPure DNA purification kit, Epicentre), according to the manufacturer’s instructions. All PTMCs were subject to real-time polymerase chain reaction (PCR) amplification targeting the BRAF gene and a housekeeping gene (GAPDH). BRAF gene mutations were then assessed by high-resolution melting analysis and confirmed by sequencing of the PCR products. Using this extraction method, we produced good yields of DNA (mean concentration, 147.4±77.8 ng/µL), in addition to high levels of purity (mean A260/A280 ratio: 1.63±0.1). We successfully assessed the BRAF mutation status in 24 cases (16 BRAF-negative; 8 BRAFV600E positive), although 1 case revealed an inconclusive pattern following high-resolution melting analysis and sequencing of the PCR products. We observed no differences in the tumor size (P=0.693), storage period of the tumor block (P=0.282), DNA concentration (P=0.243), DNA purity (P=0.458), CpGAPDH (P=0.173), or CpBRAF (P=0.217) values between the BRAF-mutated and nonmutated group of PTMCs. Our findings demonstrate the importance of a reliable, reproducible DNA extraction technique for efficient PCR amplification, uniformly applied to all cases in this study, regardless of the BRAF mutation status.
Fever: Role of Pyrogens and Cryogens

The biology of cytokines is one of the most rapidly growing areas of biomedical research. It is understandable why the assumption was made several years ago that EP was equivalent to IL-1 (both alpha and beta) and subsequently to IL-1 alpha, IL-1 beta, and TNF. However, as more data have been obtained, it has become clearer that many cytokines and hormones are capable of participating in the febrile response. It is also becoming apparent that EPs and ECs might influence body temperature during nonpathological states, perhaps contributing to the elevation in temperature during or after exercise, the circadian variation in temperature, and others. Medical textbooks have begun to list IL-1 as the EP. As I attempted to make clear in this review, evidence that IL-1 alpha is a circulating EP is poor. The evidence is considerably stronger that IL-1 beta is an EP, at least during LPS-induced fever in rodents. The point I have tried to emphasize is that before any cytokine or hormone can be characterized as an EP or EC (or, for that matter, as being involved in any of the acute phase responses), clearly established rules must be followed, which are patterned after the traditional criteria used by Koch to distinguish a pathogenic microorganism from a benign one. As summarized in Tables 4 and 5, there are many candidates for EPs and ECs, but much more experimental evidence is essential before we gain a clear understanding of the relationship between contact with an exogenous pyrogen, the release of EPs and ECs, and the development of fever.
Putting the New CLSI Cephalosporin and Carbapenem Breakpoint Changes Into Practice in Clinical Microbiology Laboratories.

At one hospital where you see patients, the clinical microbiology laboratory uses an automated commercial instrument for performing routine antimicrobial susceptibility testing (AST). At another the Kirby-Bauer disk diffusion method is used. The former has yet to change its AST reporting to comply with the new lower breakpoints for cephalosporins and carbapenems recently recommended by the Clinical and Laboratory Standards Institute, while the latter has done so. What legitimate barriers to implementation of these recommended changes might be in play? How might these barriers be addressed? What supportive actions can pediatric infectious diseases specialists take?
Low-Power Transparent RFID Circuits Using Enhancement/Depletion Logic Gates Based on Deuterium-Treated ZnO TFTs

Transparent radio frequency identification (RFID) integrated circuits based on ZnO thin film transistors were developed by using ratioed logic gates with depletion loads. The fabrication of these logic gates employed a simple deuterium plasma treatment to adjust the threshold voltages of the load transistors. Inverters were realized with full swing (0.02 ~4.99V), high gain of −48V/V, large noise margin, and small area. RFID circuits based on such logic gates exhibited ultra-low power dissipation of <inline-formula> <tex-math notation="LaTeX">$8.28~\mu \text{W}$ </tex-math></inline-formula> at a supply voltage of 2.4 V and a considerably high data rate of 1.6 kb/s, which may open up possibilities for applications including transparent, low-cost RFID tags.
Intra-hour wind power characteristics for flexible operations

In this paper we analyze variability over time in wind energy, focusing primarily on intra-hour variations. We model the time duration dependency and other conditional aspects of wind variability. We analyze variability both in the time and frequency domains and relate this analysis with empirical variability probability distributions using historical wind power from the Bonneville Power Authority. Distribution fitting of in-tra-hour variability was done, considering normal, Laplace and skew-Laplace distributions. We found that of the variability is skewed and peaky indicating that skew-Laplace distributions are superior to other probability density functions to describe wind variability in time intervals of less than an hour. The time domain interpretation of the power spectral density estimates of the wind power variability indicate that for time duration of 30 minutes to 1 hour wind fluctuation can be quite considerable. We discuss the results of our analysis in relation to its potential short-term power system operations implications with high wind power penetration.
Can resources act as capabilities foundations? A bibliometric analysis

espanolEl objetivo de este articulo es registrar las tendencias de estudio sobre las relaciones entre los recursos y las capacidades, a traves de una revision de la literatura de sus definiciones y tipologias desde 1984 hasta 2016, seguido de un analisis bibliometrico durante el periodo 2001-2016. Para este analisis, usamos registros de la Web of Science. El analisis incluye indicadores de productividad anual, por paises y autores, revistas mas productivas y articulos mas citados. Se identifico una baja productividad, 2010 el ano con la mayor cantidad de articulos publicados. Estados Unidos lidera en numero de articulos relacionados con el tema. Los articulos mas citados se publicaron en 2003 y los autores mas productivos tienen 3 publicaciones cada uno. Por lo tanto, las brechas academicas importantes son evidentes, por lo que se sugieren caminos de estudio futuros. EnglishThe objective of this article is to record the trends of study regarding the relationships between resources and capabilities, through a review of the literature of its definitions and typologies from 1984-2016, followed by a bibliometric analysis during the period 2001-2016. For this analysis, we used records of the Web of Science. The analysis includes indicators annual productivity, by countries and authors, most productive magazines and most cited articles. A low productivity was identified, 2010 the year with the largest number of articles published. United States leads in number of articles related to the topic. The most cited articles were published in 2003 and the most productive authors have 3 publications each. Thus, important academic gaps are evident, which is why future study paths are suggested.
Diabetes insipidus

Over the past two decades our understanding of the mechanisms that control water balance in health and disease has increased substantially. Following the establishment of reliable assay techniques to measure circulating vasopressin, the application of molecular biological methods to define hormonal and receptor abnormalities, and a greater knowledge of intracellular events within the renal tubular cells, it is now possible to characterise disorders of water balance more accurately. The physiology of water homeostasis is briefly discussed before the pathophysiology, diagnosis, and treatment of diabetes insipidus are described in detail.