nils-herrmann/clean_scirepeval huggingface dataset:
Research on Control of Oscillating Buoy Wave Power Generation System
Venue: 2020 39th Chinese Control Conference (CCC)
Year: 2020

This paper takes the oscillating buoy wave energy power generation system as the research object. Research uses an improved unknown input observer to estimate the wave excitation force and designs a reference displacement signal as the input of the controller based on physical constraints. In the control part, vector control is used to achieve the maximum power acquisition of the system. A simulation model of the wave power generation system is constructed and the feasibility of the proposed overall control strategy is verified through experiments.
The effect of gotu kola (Centella asiatica L. tea on blood pressure of hypertension.
Venue: Enfermeria clinica
Year: 2021

Hypertension is an increase in systolic or diastolic blood pressure that exceeds the threshold. In this research used gotu kola (Centella asiatica L. which is contains several compounds that can act as anti hypertension. The aim of this research is to determine the effect of gotu kola tea on blood pressure in hypertension patients. Analytical, quasi experimental, time series design. The sample size calculation used the proportion of hypertension parameters from 22 people aged 60 70 years, simple random sampling technique. Data anayzed by T pair test analysis. There are a decrease of systolic and diastolic blood pressure in most respondents before and after consuming Centella asiatica tea. The T pair test results on blood pressure before and after consuming Centella asiatica tea showed a significant value of p=0.000 in systolic and p=0.002 in diastolic (a=0.05) which means that in this study H1 results were accepted and H0 was rejected. The conclusion of this study is gotu kola tea can decrease blood pressure of hypertension patients.
PERFORMANCES OF TORQUE TRACKING CONTROL FOR DOUBLY FED ASYNCHRONOUS MOTOR USING PI AND FUZZY LOGIC CONTROLLERS
Year: 2020

In this paper a performances of torque tracking control for Doubly Fed Asynchronous Motor (DFAM) using PI and fuzzy logic controllers is proposed. First, a mathematical model of the doubly fed asynchronous motor written in an appropriate d q reference frame is established to investigate simulations. In order to control the rotor currents of DFAM, a torque tracking control law is synthesized using PI controllers, under conditions of the stator side power factor is controlled at unity level. The performances of fuzzy logic controller (FLC) which is based on the torque tracking control algorithm are investigated and compared to those obtained from the PI controller. Results obtained in Matlab/Simulink environment show that the FLC is more robust, superior dynamic performance and hence found to be a suitable replacement of the conventional PI controller for the high performance drive applications.
Interpolation between multi dimensional histograms using a new non linear moment morphing method
Year: 2015

A prescription is presented for the interpolation between multi dimensional distribution templates based on one or multiple model parameters. The technique uses a linear combination of templates, each created using fixed values of the model's parameters and transformed according to a specific procedure, to model a non linear dependency on model parameters and the dependency between them. By construction the technique scales well with the number of input templates used, which is a useful feature in modern day particle physics, where a large number of templates are often required to model the impact of systematic uncertainties.
The value of ultrahigh resolution OCT in dermatology delineating the dermo epidermal junction, capillaries in the dermal papillae and vellus hairs.
Venue: Biomedical optics express
Year: 2018

Optical coherence tomography (OCT) imaging of the skin is gaining recognition and is increasingly applied to dermatological research. A key dermatological parameter inferred from an OCT image is the epidermal (Ep) thickness as a thickened Ep can be an indicator of a skin disease. Agreement in the literature on the signal characters of Ep and the subjacent skin layer, the dermis (D) is evident. Ambiguities of the OCT signal interpretation in the literature is however seen for the transition region between the Ep and D, which from histology is known as the dermo epidermal junction (DEJ) a distinct junction comprised of the lower surface of a single cell layer in epidermis (the stratum basale) connected to an even thinner membrane (the basement membrane) The basement membrane is attached to the underlying dermis. In this work we investigate the impact of an improved axial and lateral resolution on the applicability of OCT for imaging of the skin. To this goal, OCT images are compared produced by a commercial OCT system (Vivosight from Michaelson Diagnostics) and by an in house built ultrahigh resolution (UHR OCT system for dermatology. In 11 healthy volunteers, we investigate the DEJ signal characteristics. We perform a detailed analysis of the dark (low) signal band clearly seen for UHR OCT in the DEJ region where we, by using a transition function, find the signal transition of axial sub resolution character, which can be directly attributed to the exact location of DEJ, both in normal (thin/hairy) and glabrous (thick) skin. To our knowledge no detailed delineating of the DEJ in the UHR OCT image has previously been reported, despite many publications within this field. For selected healthy volunteers, we investigate the dermal papillae and the vellus hairs and identify distinct features that only UHR OCT can resolve. Differences are seen in tracing hairs of diameter below 20 mm, and in imaging the dermal papillae where, when utilising the UHR OCT, capillary structures are identified in the hand palm, not previously reported in OCT studies and specifically for glabrous skin not reported in any other in vivo optical imaging studies.
HUBUNGAN ANTARA PENGETAHUAN TENTANG KEHAMILAN RESIKO TINGGI DAN TINGKAT DEPRESI PADA IBU HAMIL
Year: 2020

Kehamilan resiko tinggi berdampak pada fisik berupa pendarahan pada ibu dan gangguan pertumbuhan janin. Dampak psikologisnya dapat terjadi gangguan mood atau depresi saat kehamilan. Tujuan penelitian ini adalah untuk mengetahui hubungan antara tingkat pengetahuan tentang kehamilan resiko tinggi dengan tingkat depresi pada ibu hamil. Penelitian analitik observasional ini menggunakan desain cross sectional. Pemilihan sampel menggunakan teknik quota sampling, berjumlah 35 orang ibu hamil di wilayah RT.05 Kelurahan Karang Ambun, Kecamatan Tanjung Redeb, Kabupaten Berau dengan rentang usia 17 40 tahun, dalam periode kehamilan trimester 1 dan trimester 2. Analisa data dilakukan dengan menggunakan Uji Korelasi Spearman. Hasil penelitian ini adalah mayoritas ibu hamil berusia 35 tahun (51,4% dengan tingkat pendidikan SMA (60,0% yang bekerja sebagai IRT (57,1% Mayoritas ibu hamil memiliki jumlah anak hidup sebelum kehamilan sebanyak 2 orang sekitar (28,6% Mayoritas merupakan kehamilan ke 3 sebanyak (28,6% dan memiliki usia kandungan rata rata trimester II (74,2% Hasil uji Korelasi Spearman didapatkan p value sebesar 0,003 <0,05) dengan koefisien korelasi sebesar 0,488 menunjukan ada korelasi negatif antara pengetahuan tentang kehamilan resiko tinggi dan tingkat depresi pada ibu hamil. Peningkatan pengetahuan ibu akan mempengaruhi sikap dan perilaku ibu selama masa kehamilan yang akan membuat ibu memiliki risiko depresi yang rendah.
Cardiovascular disease and COVID 19
Venue: Diabetes Metabolic Syndrome: Clinical Research Reviews
Year: 2020

Many patients with coronavirus disease 2019 (COVID 19) have underlying cardiovascular (CV) disease or develop acute cardiac injury during the course of the illness. Adequate understanding of the interplay between COVID 19 and CV disease is required for optimum management of these patients.  A literature search was done using PubMed and Google search engines to prepare a narrative review on this topic.  Respiratory illness is the dominant clinical manifestation of COVID 19; CV involvement occurs much less commonly. Acute cardiac injury, defined as significant elevation of cardiac troponins, is the most commonly reported cardiac abnormality in COVID 19. It occurs in approximately 8 12% of all patients. Direct myocardial injury due to viral involvement of cardiomyocytes and the effect of systemic inflammation appear to be the most common mechanisms responsible for cardiac injury. The information about other CV manifestations in COVID 19 is very limited at present. Nonetheless, it has been consistently shown that the presence of pre existing CV disease and/or development of acute cardiac injury are associated with significantly worse outcome in these patients.  Most of the current reports on COVID 19 have only briefly described CV manifestations in these patients. Given the enormous burden posed by this illness and the significant adverse prognostic impact of cardiac involvement, further research is required to understand the incidence, mechanisms, clinical presentation and outcomes of various CV manifestations in COVID 19 patients.
Changes of the dye adsorption state induced by ferroelectric polarization to improve photoelectric performance
Year: 2018

Coupling ferroelectric materials with semiconductor materials can improve the performance of photovoltaic cells. The BaTiO3/TiO2(n) (B/T(n) photoanode of dye sensitized solar cells (DSSCs) is composed of a BaTiO3 core, a high performance and frequently used ferroelectric material, and TiO2 nanoparticles, a common semiconductor material. A hysteresis loop, 105 mC cm 2 remnant polarization and 7 kV cm 1 coercive field of the photoanode demonstrate its ferroelectricity. The short circuit current density (Jsc) of the dye sensitized photoanode after polarization (B/T(n)PD) is superior to that of unpolarized (B/T(n)D) by about 2 mA cm 2, regardless of the direction of polarization. The DSSC based on the B/T(4)PD photoanode exhibits a power conversion efficiency (PCE) of 7.29% and a Jsc of 14.44 mA cm 2. Reflectance spectroscopy, Fourier transform infrared spectroscopy (FTIR) and intensity modulated photocurrent/photovoltage spectroscopy (IMPS/IMVS) are carried out to investigate the light absorption, charge injection and separation processes in B/T(n) Spontaneous polarization changes the adsorption state of the dye, which increases the light absorption efficiency, electron injection efficiency, incident light to photocurrent efficiency (IPCE) and Jsc. The discovery reported in this paper provides a method for modulating the interaction of adsorbed molecules with solids by means of electric field changes. This study deepens the understanding of the mechanism of charge transport and photovoltage generation in photovoltaic cells.
A Multi Level Analysis Approach to Measuring Variations in Biomass Recalcitrance of Douglas Fir Tree Samples
Venue: BioEnergy Research
Year: 2014

Biomass recalcitrance is a major bottleneck in the development of an economically viable process to convert woody biomass into fuels and other valuable chemicals. Selective breeding of trees with low recalcitrance toward biofuel conversion could help significantly reduce the cost of biofuel production, but such efforts would require a greater understanding of the nature of variations in the biomass recalcitrance of softwood species. The complexity of biomass recalcitrance, however, hinders research into determining the viability of breeding programs aimed to improve the recalcitrance of softwoods. In this study, a method was developed to determine biomass recalcitrance at three levels: chemical composition, pretreatment yield, and sugar release from the enzymatic hydrolysis. This method is designed to investigate the biomass recalcitrance variations among different families of Douglas fir, which is the most abundant and promising softwood species for biofuel production in the Pacific Northwest region. Wood samples from 150 plantation grown trees were collected and analyzed to test the method and the applicability of the parameters screened. The relationships between these levels are discussed to determine the best method for screening large D. fir populations. A parameter, a biomass recalcitrance factor, was introduced to quantify the level of biomass recalcitrance toward sugar production from different D. fir trees.
Vehicle detection algorithm based on codebook and local binary patterns algorithms
Year: 2015

Detecting the moving vehicles in jittering traffic scenes is a very difficult problem because of the complex environment.Only by the color features of the pixel or only by the texture features of image cannot establish a suitable background model for the moving vehicles. In order to solve this problem, the Gaussian pyramid layered algorithm is proposed, combining with the advantages of the Codebook algorithm and the Local binary patterns(LBP) algorithm. Firstly, the image pyramid is established to eliminate the noises generated by the camera shake. Then, codebook model and LBP model are constructed on the low resolution level and the high resolution level of Gaussian pyramid, respectively. At last, the final test results are obtained through a set of operations according to the spatial relations of pixels. The experimental results show that this algorithm can not only eliminate the noises effectively, but also save the calculating time with high detection sensitivity and high detection accuracy.
Energy Efficient Scheduling for Real Time Systems Based on Deep Q Learning Model
Venue: IEEE Transactions on Sustainable Computing
Year: 2019

Energy saving is a critical and challenging issue for real time systems in embedded devices because of their limited energy supply. To reduce the energy consumption, a hybrid dynamic voltage and frequency scaling (DVFS) scheduling based on Q learning (QL HDS) was proposed by combining energy efficient DVFS techniques. However, QL HDS discretizes the system state parameters with a certain step size, resulting in a poor distinction of the system states. More importantly, it is difficult for QL HDS to learn a system for various task sets with a Q table and limited training sets. In this paper, an energy efficient scheduling scheme based on deep Q learning model is proposed for periodic tasks in real time systems (DQL EES) Specially, a deep Q learning model is designed by combining a stacked auto encoder and a Q learning model. In the deep Q learning model, the stacked auto encoder is used to replace the Q function for learning the Q value of each DVFS technology for any system state. Furthermore, a training strategy is devised to learn the parameters of the deep Q learning model based on the experience replay scheme. Finally, the performance of the proposed scheme is evaluated by comparison with QL HDS on different simulation task sets. Results demonstrated that the proposed algorithm can save average <inline formula><tex math notation="LaTeX"$4.2\/tex math><alternatives><inline graphic xlink:href="yang ieq1 2743704.gif"/alternatives>/inline formula> energy than QL HDS.
Information Behavior on Social Live Streaming Services
Year: 2016

In the last few years, a new type of synchronous social networking services (SNSs) has emerged social live streaming services (SLSSs) Studying SLSSs is a new and exciting research field in information science. What information behaviors do users of live streaming platforms exhibit? In our empirical study we analyzed information production behavior (i.e. broadcasting) as well as information reception behavior (watching streams and commenting on them) We conducted two quantitative investigations, namely an online survey with YouNow users (N
Examining the Cross Cultural Sensitivity of the Revised Two Factor Study Process Questionnaire (R SPQ 2F) and Validation of a Dutch Version
Venue: PloS one
Year: 2013

The Revised Two Factor Study Process Questionnaire (R SPQ 2F) is used to examine students' study approaches in higher education. The questionnaire assumes to measure two factors: a deep and a surface study approach. Analyses into the validity and reliability of the original English R SPQ 2F yielded positive results. In this study, we examined the degree to which these positive results can also be found for the Dutch version that we developed. By comparing our results with the results of earlier studies in different cultures, we conclude cross cultural sensitivity is an important point to be borne in mind when using the R SPQ 2F. Our research supports the validity and reliability of our Dutch version of the R SPQ 2F.
A Rapid, Reversible, and Tunable Method to Regulate Protein Function in Living Cells Using Synthetic Small Molecules
Venue: Cell
Year: 2006

Rapid and reversible methods for perturbing the function of specific proteins are desirable tools for probing complex biological systems. We have developed a general technique to regulate the stability of specific proteins in mammalian cells using cell permeable, synthetic molecules. We engineered mutants of the human FKBP12 protein that are rapidly and constitutively degraded when expressed in mammalian cells, and this instability is conferred to other proteins fused to these destabilizing domains. Addition of a synthetic ligand that binds to the destabilizing domains shields them from degradation, allowing fused proteins to perform their cellular functions. Genetic fusion of the destabilizing domain to a gene of interest ensures specificity, and the attendant small molecule control confers speed, reversibility, and dose dependence to this method. This general strategy for regulating protein stability should enable conditional perturbation of specific proteins with unprecedented control in a variety of experimental settings.
Food safety tracking system in cold chain logistics based on radio frequency identification device (RFID) and data validation method of system
Year: 2012

The invention relates to the technical field of food transportation and storage safety, and provides a food safety tracking system in cold chain logistics based on a RFID. The system comprises constant space and an active RFID label. The active RFID label is arranged in cold insulation space, a plurality of articles are stored in the constant space, and each of the articles is provided with a passive RFID label. When attention parameters of the constant space are higher than preset upper limit values or lower than preset lower limit values, the active RFID label transmits attention parameter information to each of the passive RFID label which stores that attention parameter information. As control is achieved through a plurality of the passive RFID labels, the cost is saved. The invention further provides a data validation method of the system, and accordingly, data are safe.
High Serum Transforming Growth Factor b1 Levels Predict Outcome in Hepatocellular Carcinoma Patients Treated with Sorafenib
Venue: Clinical Cancer Research
Year: 2015

The TGF b signaling pathway is crucial in the progression and metastasis of malignancies. We investigated whether the serum TGF b1 level was related to the outcomes of patients treated with sorafenib for advanced hepatocellular carcinoma (HCC)  We selected patients who had received sorafenib containing regimens as first line therapy for advanced HCC between 2007 and 2012. Serum TGF b1 levels were measured and correlated with the treatment outcomes. The expression TGF b1 and the sensitivity to sorafenib were examined in HCC cell lines. Ninety one patients were included; 62 (68% were hepatitis B virus surface antigen and 11 (12% were anti hepatitis C virus High median) pretreatment serum TGF b1 levels (median 13.7 ng/mL; range, 3.0 41.8) were associated with high a fetoprotein levels, but not with age, gender, or disease stage. Patients with high pretreatment serum TGF b1 levels exhibited significantly shorter progression free survival (median, 2.5 vs. 4.3 months; P 0.022) and overall survival (median 5.6 vs. 11.6 months; P 0.029) than did patients with low serum TGF b1 levels. Compared with pretreatment levels, the serum TGF b1 levels were significantly increased at disease progression (n 29, P 0.010) In preclinical models of HCC, higher TGF b1 expression levels were associated with poorer sensitivity to sorafenib.  High pretreatment serum TGF b1 levels were associated with poor prognoses, and increased serum TGF b1 levels were associated with the disease progression of advanced HCC patients. TGF b pathway may be explored as a therapeutic target for advanced HCC.
Inhibition of MDSC Trafficking with SX 682, a CXCR1/2 Inhibitor, Enhances NK Cell Immunotherapy in Head and Neck Cancer Models
Venue: Clinical Cancer Research
Year: 2019

Natural killer (NK) cell based immunotherapy may overcome obstacles to effective T cell based immunotherapy such as the presence of genomic alterations in IFN response genes and antigen presentation machinery. All immunotherapy approaches may be abrogated by the presence of an immunosuppressive tumor microenvironment present in many solid tumor types, including head and neck squamous cell carcinoma (HNSCC) Here, we studied the role of myeloid derived suppressor cells (MDSC) in suppressing NK cell function in HNSCC.  The ability of peripheral and tumor infiltrating MDSC from mice bearing murine oral cancer 2 (MOC2) non T cell inflamed tumors and from patients with HNSCC to suppress NK cell function was studied with real time impedance and ELISpot assays. The therapeutic efficacy of SX 682, a small molecule inhibitor of CXCR1 and CXCR2, was assessed in combination with adoptively transferred NK cells.  Mice bearing MOC2 tumors pathologically accumulate peripheral CXCR2+ neutrophilic MDSC (PMN MDSC) that traffic into tumors and suppress NK cell function through TGFb and production of H2O2. Inhibition of MDSC trafficking with orally bioavailable SX 682 significantly abrogated tumor MDSC accumulation and enhanced the tumor infiltration, activation, and therapeutic efficacy of adoptively transferred murine NK cells. Patients with HNSCC harbor significant levels of circulating and tumor infiltrating CXCR1/2+ CD15+ PMN MDSC and CD14+ monocytic MDSC. Tumor MDSC exhibited greater immunosuppression than those in circulation. HNSCC tumor MDSC immunosuppression was mediated by multiple, independent, cell specific mechanisms including TGFb and nitric oxide.  The clinical study of CXCR1/2 inhibitors in combination with adoptively transferred NK cells is warranted.