Miracle-dz/UniFAR-FTUs huggingface dataset:
Analytical Expressions for Multiobjective Optimization of Converter-Based DG Operation Under Unbalanced Grid Conditions

Recently, riding through grid faults and supporting the grid voltage by using grid-connected converters (GCCs) have become major requirements reflected in the grid codes. This paper presents a novel reference current generation scheme with the ability to support the grid voltage by injecting a proper set of positive/negative active/reactive currents by using four controlling parameters. Analytical expressions are proposed to obtain the optimal values of these parameters under any grid voltage condition. The optimal performances can be obtained by achieving the following objectives: first, compliance with the phase voltage limits, second, maximized active and reactive power delivery, third, minimized fault currents, and fourth reduced oscillations on the active and reactive powers. These optimal behaviors bring significant advantages to emerging GCCs, such as increasing the efficiency, lowering the dc-link ripples, improving ac system stability, and avoiding equipment tripping. Simulation and experimental results verify the analytical results and the proposed expressions.
Hexosamines and Nutrient Excess Induce Leptin Production and Leptin Receptor Activation in Pancreatic Islets and Clonalβ -Cells.

Activation of the hexosamine biosynthesis pathway leads to insulin resistance in muscle and adipose tissue. In these tissues leptin gene expression is increased by glucosamine. In the present study we found that glucosamine rapidly activates the production of leptin and OB-Rb, which encodes the functional leptin receptor, in both primary pancreatic islets and clonal β-cells. Secretion of leptin from clonal β-cells into the medium was detected readily. In addition, the level of the transcripts encoding signal transducer and activator of transcription-3 and -5, both implicated in leptin signal transduction in islet β-cells, was increased by glucosamine, although to a lesser degree than mRNA levels of leptin and OB-Rb. High glucose (16.7 mm) induced leptin biosynthesis in primary pancreatic islet cells, and the addition of 1 mm palmitate caused an additional incremental effect. The hexosamine-mediated induction of the leptin system in clonal β-cells was associated with increased responsiveness to leptin, as .
Antiviral Action of Diphenyl Diselenide on Herpes Simplex Virus 2 Infection in Female BALB/c Mice

Diphenyl diselenide, (PhSe)2, is an organoselenium compound with pharmacological actions mostly related to antioxidant and anti‐inflammatory properties. The study investigated its antiviral and virucidal actions against herpes simplex virus 2 (HSV‐2) infection in vitro and in a vaginal infection model in mice. The plaque reduction assay indicated that (PhSe)2 showed virucidal and antiviral actions reducing infectivity in 70.8% and 47%, respectively. The antiviral action of (PhSe)2 against HSV‐2 vaginal infection was performed by infecting mice (105 PFU/ml−1) at day 6. The treatment with (PhSe)2 (5 mg/kg/day, intragastric [i.g.]) followed 5 days before and for more 5 days after infection. The extravaginal lesion score was evaluated from days 6 to 10. At day 11, animals were killed, and histological evaluation, determination of viral load, and TNF‐α and IFN‐γ levels were performed in supernatants of homogenized vaginal tissue. The levels of reactive species (RS), protein carbonyl, non‐protein thiols (NPSH), nitrate/nitrite (NOx), and malondialdehyde (MDA), and the activities of myeloperoxidase (MPO), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione reductase (GR) were determined. (PhSe)2 reduced the histological damage, extravaginal lesion scores, the viral load of vaginal tissue, and the activity of MPO, but increased the levels of TNF‐α, IFN‐γ. (PhSe)2 attenuated the increase of RS, MDA, NOx levels and the activity of GR caused by infection. (PhSe)2 also attenuated the reduction of NPSH content and the inhibition of CAT, SOD, and GPx activities. The antiviral action of (PhSe)2 against HSV‐2 infection was related to its immunomodulatory, antioxidant, and anti‐inflammatory properties. J. Cell. Biochem. 117: 1638–1648, 2016. © 2015 Wiley Periodicals, Inc.
Observability analysis of underwater localization based on fisher information matrix

Observability property has a very practical meaning in the underwater localization. This paper presents the observability of underwater localization based on the moving long baseline from the aspect of Fisher information matrix, which characterizes the amount of information provided by the measurements in the localization. The localization with two leader AUVs and a single follower AUV is analyzed. And the multiple AUVs geometry configuration which has a higher observability property is presented by maximization of the evaluation function based on the determinant of Fisher information matrix. Simulations are presented to compare the localization error of unobservable trajectory, observable non-optimal trajectory, and observable optimal trajectory, revealing the effectiveness of the analysis.
Topologies and analysis of the DC-DC converters with AFCL

In conventional DC-DC converters, to realize a larger range of voltage conversion, an extreme duty cycle is needed, this will results in a higher voltage/current stress of the switches and lowering the switching frequency. Though the isolated converter can solve the above problems, its size and cost are improved due to the high-frequency transformer. Then the converter with an Active Floating Charge Landing (AFCL) was proposed to eliminate the drawbacks, and AFCL has been used in Buck, Boost and Buck-Boost converters successfully. In this paper, all the converters with AFCL were analyzed in detail including their principle and characteristics; a bidirectional DC-DC converter with AFCL was proposed and analyzed. Finally, simulation has been done to illustrate the good performance of the proposed topology. The converters with AFCL have a good application prospect in many fields, such as new energy access to power electronic transformer (PET), energy storage system and so on.
The BRCA1/BARD1 Heterodimer Assembles Polyubiquitin Chains through an Unconventional Linkage Involving Lysine Residue K6 of Ubiquitin*

The BRCA1 tumor suppressor forms a heterodimer with the BARD1 protein, and the resulting complex functions as an E3 ubiquitin ligase that catalyzes the synthesis of polyubiquitin chains. In theory, polyubiquitination can occur by isopeptide bond formation at any of the seven lysine residues of ubiquitin. The isopeptide linkage of a polyubiquitin chain is a particularly important determinant of its cellular function, such that K48-linked chains commonly target proteins for proteasomal degradation, while K63 chains serve non-proteolytic roles in various signaling pathways. To determine the isopeptide linkage formed by BRCA1/BARD1-dependent polyubiquitination, we purified a full-length heterodimeric complex and compared its linkage specificity with that of E6-AP, an E3 ligase known to induce proteolysis of its cellular substrates. Using a comprehensive mutation analysis, we found that E6-AP catalyzes the synthesis of K48-linked polyubiquitin chains. In contrast, however, the BRCA1/BARD1 heterodimer directs polymerization of ubiquitin primarily through an unconventional linkage involving lysine residue K6. Although heterologous substrates of BRCA1/BARD1 are not known, BRCA1 autoubiquitination occurs principally by conjugation with K6-linked polymers. The ability of BRCA1/BARD1 to form K6-linked polyubiquitin chains suggests that it may impart unique cellular properties to its natural enzymatic substrates.
Reconstituting knowledge management

Purpose – The purpose of the paper is to improve traditional knowledge management models in light of complexity theory, emphasizing the importance of moving away from hierarchical relationships among data, information, knowledge, and wisdom.Design/methodology/approach – Traditional definitions and models are critically reviewed and their weaknesses highlighted. A transformational perspective of the traditional hierarchies is proposed to highlight the need to develop better perspectives. The paper demonstrates the holistic nature of data, information, knowledge, and wisdom, and how they are all based on an interpretation of existence.Findings – Existing models are logically extended, by adopting a complexity‐based perspective, to propose a new model – the E2E model – which highlights the non‐linear relationships among existence, data, information, knowledge, wisdom, and enlightenment, as well as the nature of understanding as the process that defines the differences among these constructs. The meaning of m.
Realidad percibida sobre la gestión del Capital Intelectual en las empresas: Aplicación del análisis conjunto en bloques combinados

En las empresas intensivas en conocimiento, la mayoria de empleados son profesionales altamente cualificados. Su principal tarea consiste, en gran medida, en transformar la informacion en conocimiento utilizando principalmente sus propias capacidades. Por ello, los activos intangibles son mas valiosos que sus activos tangibles (Sveiby, 2000). Las ventajas competitivas sostenibles vienen dadas por aquellos recursos que son dificiles de imitar y son escasos en relacion con su valor economico.
Analytical model for metal-insulator-metal mesh waveguide architectures

Metal–insulator–metal (MIM) waveguide mesh structures utilize X-junctions as power distribution elements to create interference and feedback effects, thereby providing rich device functionality. We present a generalized analytical model for MIM mesh structures by incorporating a modified characteristic impedance model for MIM junctions into the scattering matrix formalism. The modified impedance model accounts for metal absorption and provides accurate prediction of plasmonic field distribution at X-junctions in terms of both magnitude and phase. Closed-form expressions for 2×1 and 2×2 MIM mesh architectures as well as MIM stub structures are then obtained and are dependent only on waveguide geometry and junction configuration. The model does not require numerically extracted parameters, and results agree, within a few percent, with those obtained from finite-difference time-domain method for both two-dimensional and three-dimensional waveguide geometries. The capability of the model for efficient design and optimization of junction-based MIM devices is demonstrated through the development of various filter and resonant devices.
Sleep‐disordered breathing in heart failure: facts and numbers

Sleep‐disordered breathing has a high prevalence in the general population, but is especially prominent in patients with heart failure (HF). HF and sleep‐disordered breathing share a bidirectional relationship, with sleep‐disordered breathing being both cause and effect of poor cardiac functioning. The high inter‐individual variability of symptom presentation can impede the clinical diagnostic process. Polysomnography is the gold‐standard method of diagnosing sleep‐disordered breathing. Therapy of sleep‐disordered breathing should always consist of optimizing the treatment of the underlying disorder of HF. Additional therapeutic measures include continuous positive airway pressure ventilation therapy. New therapeutic options using neurostimulation are yielding promising results; however, long‐term benefits still need to be confirmed.
Native Language Identification Using a Mixture of Character and Word N-grams

Native language identification (NLI) is the task of determining an author’s native language, based on a piece of his/her writing in a second language. In recent years, NLI has received much attention due to its challenging nature and its applications in language pedagogy and forensic linguistics. We participated in the NLI2017 shared task under the name UT-DSP. In our effort to implement a method for native language identification, we made use of a fusion of character and word N-grams, and achieved an optimal F1-Score of 77.64%, using both essay and speech transcription datasets.
A Taiwanese Empirical Study of Online Group Buying from the Perspectives of Organizational Culture and Transformational Leadership

This study examines online group-buying from the perspectives of organizational culture and transformational leadership. A convenience sampling of 400 online group-buying individuals living in Taiwan was conducted in 2011, and this yielded 300 effective questionnaires, giving a return rate of 75%. ANOVA analyses and canonical correlation were used to examine the participants' perceptions of organizational culture and the leadership of online group-buying initiators, and the relationship between these leadership behaviors and the organizational culture in their workplaces. The main findings of this study are as follows: (1) online group-buying activities occur most often in organizations with a "supportive" culture; (2) "idealized influence" is the most influential leadership behavior with regard to the perceptions of group-buying members towards group-buying initiators; and (3) the better initiators are able to perform with regard to "individual consideration" and "idealized influence," the greater the positive effects on online group-buying activities in the organizations with "supportive" and "innovative" organizational cultures.
A source-synchronous 90Gb/s capacitively driven serial on-chip link over 6mm in 65nm CMOS

While continued scaling of feature sizes allows for an ever increasing number of cores in modern MPSoCs, power reduction and meeting on-chip bandwidth requirements are pressing concerns. Energy efficiency can be increased by per-core dynamic voltage and frequency scaling (DVFS) and by employing a globally-asynchronous, locally-synchronous (GALS) system architecture in which distribution of a synchronous high-speed clock is not required. For global on-chip communication this presents major challenges due to the need for reliable data synchronization, high bandwidth requirements and speed limiting RC effects on long wires. It has been shown recently that low-swing differential on-chip links provide highest bandwidth, low energy-per-bit and uninterrupted transfers over lengths up to 10mm [1-3, 6]. Capacitively-driven links are promising because of their built-in pre-emphasis thereby countervailing the low-pass behavior of long on-chip wires [1, 4-5]. However, all of these existing implementations focus mainly on the transmission line itself. The capacitively-driven links are not able to forward a stoppable clock signal as there is no well defined differential DC level on the wires with no data or clock activity. In addition, clocking is not reported [5] or fully synchronous, which means a high-speed clock must be distributed globally on-chip. This work provides a solution for capacitively-driven links with a parallel DC resistive divider to allow forwarded clocking with complete gating capability.
3D honeycomb-like structured graphene and its high efficiency as a counter-electrode catalyst for dye-sensitized solar cells.

Graphene, a two-dimensional carbon sheet, has attracted great interest due to its unique properties. To explore its practical applications, large-scale synthesis with controllable integration of individual graphene sheets is essential. To date, numerous approaches have been developed for graphene synthesis, including mechanical cleavage, epitaxial growth, and chemical vapor deposition. All of those techniques are used to prepare flat graphene sheets on a substrate. Chemical exfoliation of graphite has been applied to prepare graphene oxide solutions and graphene-based composite materials. Recently, tuning graphene shapes is attracting much attention. Cheng and co-workers synthesized graphene foam using porous Ni foam as a template for the CVD growth of graphene, followed by etching away the Ni skeleton. The graphene foam consists of an interconnected flexible network of graphene as the fast transport channel of charge carriers for high electrical conductivity. Ruoff et al. prepared porous graphene paper from microwave exfoliated graphene oxide by KOH activation. The porous graphene, which has an ultra-high surface area and a high electrical conductivity, was exploited for supercapacitor cells, leading to high values of gravimetric capacitance and energy density. Feng, M llen, and co-workers synthesized hierarchical macroand mesoporous graphene frameworks (GFs). The GFs exhibited excellent performance for electrochemical capacitive energy storage. Yu et al. and Qu et al. fabricated graphene tubes that could be selectively functionalized for desirable applications. Choi et al. synthesized macroporous graphene using polystyrene colloidal particles as sacrificial templates in graphene oxide suspension, and the pore sizes can be tuned by controlling template particle size. These important results represent a significant topic—tuning the properties of graphene sheets by controlling their shapes. However, it is still a challenge to synthesize three-dimensional graphene (3D) with a desirable shape. Herein, we develop a novel strategy for the synthesis of a new type of graphene sheet with a 3D honeycomb-like structure by a simple reaction between Li2O and CO. Furthermore, these graphene sheets exhibited excellent catalytic performance as a counter electrode for dye-sensitized solar cells (DSSCs) with an energy conversion efficiency as high as 7.8%, which is comparable to that of an expensive platinum electrode. Li2O is widely exploited as a promoter in catalysts to inhibit carbon formation. However, this general principle is challenged by this work, in which Li2O is used to react with CO to form graphene-structured carbon [Eq. (1)]
Understanding and Augmenting Collateral Blood Flow During Ischemic Stroke

Stroke refers to brain damage and dysfunction that occurs due to the obstruction of blood flow to brain tissue. Stroke is one of the leading causes of death and disability worldwide, accounting for 10% of all deaths (Grysiewicz et al., 2008; Donnan et al., 2008). Risk of stroke is affected by a number of modifiable and non-modifiable risk factors. Age is the primary non-modifiable risk factor, while modifiable risk factors include chronic hypertension, diabetes, smoking, cholesterol and lack of exercise (Simons et al., 1998; Knuiman & Vu, 1996; Iso et al., 1989; Wadley et al., 2007). Ischemic stroke, the rapid development of a neurological deficit due to the disruption of blood supply to a specific region of the brain, is the most common cause of stroke. Usually caused by the blockage of an artery or vein by an embolus or blood clot, an ischemic stroke is a major cerebrovascular trauma with a mortality rate of 25% after one month (Donnan et al., 2008; Hossmann, 2006). Ischemic strokes are differentiated from transient ischemic attacks by neurological symptoms lasting for more than 24 hours (Albers et al., 2002). Death and extent of disability due to ischemic stroke is largely defined by location of the occlusion and corresponding size and location of the infarct. Brain injury following ischemic stroke results from an “ischemic cascade” of pathological events triggered by reduced blood flow. Disturbed ion homeostasis, excitotoxity, elevation of intracellular calcium concentrations, peri-infarct depolarisations, free radical generation, lipid peroxidation and protein synthesis dysfunction are all triggered by reduced blood flow and contribute to necrotic and apoptotic processes in ischemic tissue and expansion of the infarct (Dirnagl et al., 1999 and Hossmann et al., 2006). Notably, necrotic cell death tends to be fast and irreversible in the core or infarct of the stroke area, where blood flow falls below ~20% of baseline perfusion and results in energy failure in resident neurons (Hossman, 2006). However, in “penumbral” regions surrounding the core, partial blood flow is maintained and tissue is considered functionally silent but structurally intact. Importantly, damage in the penumbra is reversible, though this reversibility is time-limited (Hakim, 1987). Because pathophysiology in the penumbra evolves over hours and days after ischemic onset, it is believed that early treatments that restore blood flow or reduce brain damage can reduce damage and improve outcome (Green, 2008). Although hundreds to thousands of prospective treatments to salvage ischemic tissue or halt the pathological ischemic cascade have been identified, few have successfully been translated to clinical practice (Ginsberg , 2008; Wahlgren & Ahmed, 2005). In fact, only thrombolytic drugs have thus far produced significant positive
Evidence for a Selective Sweep on Chromosome 1 of Cultivated Sorghum

S-27 Abstract Recently, a simple sequence repeat (SSR)-based genome-wide diversity scan of Sorghum bicolor (L.) Moench identifi ed several candidate loci with patterns of variation consistent with directional selection in cultivated lines. Data were insuffi cient, however, to determine if selection had actually occurred at or near candidate SSR loci or if the unusual diversity patterns observed were due to the effects of demographic factors such as population bottlenecks or mating system. In the present study, we collected DNA sequences from 10 segments within a 99 kb region fl anking one of the previously identifi ed candidates, SSR locus Xcup15, located near the distal end of chromosome 1. We performed statistical tests both to address alternative hypotheses to selection and to aid in localizing the selection target. Analyses of genomic DNA sequences from a panel of 17 cultivated and 13 wild accessions indicated that cultivated lines had reduced diversity in this region (about one-third of the diversity present in wild sorghums) and a moderate degree of differentiation was observed between cultivated and wild groups (F st = 0.15). Several features of the data support the hypothesis that recent directional selection shaped diversity patterns around Xcup15, including overall low levels of variation and extensive haplotype structure (a predominant haplotype occurred over the 99 kb region) in cultivated sorghum, and a derived fi xed difference at the 5' untranslated region (UTR) of a protein phosphatase 2C (PP2C) gene between cultivated and wild sorghums. Moreover, two of the four tests employed to detect deviations from the neutral, equilibrium model, the Hudson Kreitman Aguade (HKA), and the composite likelihood ratio (CLR) tests indicated that patterns of diversity in the Xcup15 region were consistent with a selective sweep. Although we were unable to rule out demography as a possible explanation for the diversity patterns observed along this region, this study supported previous fi ndings based on SSR diversity and identifi ed candidates for the target of selection; the confi rmation of which will require functional and association studies. During the past decade, SSRs have been exten sively