Miracle-dz/UniFAR-FTUs huggingface dataset:
Study of Robust Two-Stage Reduced-Dimension Sparsity-Aware STAP with Coprime Arrays

Space-time adaptive processing (STAP) algorithms with coprime arrays can provide good clutter suppression potential with low cost in airborne radar systems as compared with their uniform linear arrays counterparts. However, the performance of these algorithms is limited by the training samples support in practical applications. To address this issue, a robust two-stage reduced-dimension (RD) sparsity-aware STAP algorithm is proposed in this work. In the first stage, an RD virtual snapshot is constructed using all spatial channels but only $m$ adjacent Doppler channels around the target Doppler frequency to reduce the slow-time dimension of the signal. In the second stage, an RD sparse measurement modeling is formulated based on the constructed RD virtual snapshot, where the sparsity of clutter and the prior knowledge of the clutter ridge are exploited to formulate an RD overcomplete dictionary. Moreover, an orthogonal matching pursuit (OMP)-like method is proposed to recover the clutter subspace. In order to set the stopping parameter of the OMP-like method, a robust clutter rank estimation approach is developed. Compared with recently developed sparsity-aware STAP algorithms, the size of the proposed sparse representation dictionary is much smaller, resulting in low complexity. Simulation results show that the proposed algorithm is robust to prior knowledge errors and can provide good clutter suppression performance in low sample support.
On the Hardness of Almost All Subset Sum Problems by Ordinary Branch-and-Bound

Given $n$ positive integers $a_1,a_2,\dots,a_n$, and a positive integer right hand side $\beta$, we consider the feasibility version of the subset sum problem which is the problem of determining whether a subset of $a_1,a_2,\dots,a_n$ adds up to $\beta$. We show that if the right hand side $\beta$ is chosen as $\lfloor r\sum_{j=1}^n a_j \rfloor$ for a constant $0 < r < 1$ and if the $a_j$'s are independentand identically distributed from a discrete uniform distribution taking values ${1,2,\dots,\lfloor 10^{n/2} \rfloor }$, then the probability that the instance of the subset sum problem generated requires the creation of an exponential number of branch-and-bound nodes when one branches on the individual variables in any order goes to $1$ as $n$ goes to infinity.
Obliczanie charakterystyk aerodynamicznych obiektów latających z wykorzystaniem programów Prodas i Fluent

The article presents the methodology of determining the basic aerodynamic characteristics using the Fluent theoretical method and the theoretical and experimental method using the Prodas program. Presented calculations were made for a 122 mm non-guided missile. In order to compare both methods, the results of calculations of coefficient of drag force, lift force coefficient and pitching moment coefficient as a function of incidence angle of attack (AoA) and Mach number are shown in graphs.
Analysing and comparing a PI fuzzy controller and an optimal conventional PI controller for a buck converter

This document proposes analysing and designing two control strategies for permanent current DC-DC buck converter. These kinds of electronic devices convert a constant-voltage to a lower constant-voltage (nonlinearity characteristics being demonstrated). Two nonlinear control techniques are shown. The first is a conventional optimal proportional error and integral error (PI) controller based on minimising integral of time per squared errors (ITSE) criteria. A model of the plant at an operation point was thus obtained. The second one was fuzzy control where input and output sets were also defined by minimising ITSE criteria in the overall system and establishing inputs such as proportional error and integral error. Load was then varied to establish the system's efficiency with both the aforementioned controllers. It must be borne in mind that such systems should not present supervoltage since this can cause damage. The parameters found in designing both controllers thus corresponded to analytical and descriptive methodology. Simulation results, the performance index mentioned above (ITSE) and power consumption showed that the system's response for the fuzzy control drew more power consumption than the optimal controller; otherwise, obtained ITSE was larger for the optimal control than the fuzzy control. It is concluded that exploring these types of converter is applicable when using nonlinear control techniques and minimising the different performance indices.
A follow-up study of sensory integrative dysfunction in children

Objective To evaluate the dynamic change of sensory integrative dysfunction (SID) in children and its nature in a 6 year period, to explore the causes and risk factors of SID, and to provide scientific evidence for early intervention for SID. Method Three self report questionnaires, general information questionnaire, sensory integrative diagnostic questionnaire and Achenbach′s child behavior checklist were studied in 310 children from 1993 through 1999. Results Two hundred and eighty nine children aged 3-6 years were followed during a 6 year period. The results showed that among 229 children without SID, the cumulative incidence rate of SID was 33.6%. The rate was significantly higher in boys (39.1%) as compared with girls (26 7%,χ 2=3 845, P 0.05). The cumulative incidence rate of somatosensory dysfunction was 15.7%, tactile perception dysfunction was 10.0%, vestibule balance dysfunction was 17.0%, study ability dysfunction was 11 4%, and operational ability dysfunction was 14.0%. There were significantly differences in the cumulative incidence rates of vestibule balance dysfunction and operational ability dysfunction between boys and girls. Among 60 children with SID, the self recovery rate of SID was 48 3% The rate was 48 5% in boys and 48 2% in girls(χ 2=0 001, P 0 05). The self recovery rate of somatosensory dysfunction was 69 7%, tactile perception dysfunction was 81 6%, and vestibule balance dysfunction was 72 0%. Among 229 children without SID, no significant differences in incidences of SID were found, except 4 and 5 year age group. Among 60 children with SID, no age difference on self recovery was found. Among 155 children without behavior problems, the cumulative incidence rate of behavioral problems was 9.4%. There were no statistical differences in the rates between boys (12 5%) and girls (6 1%, χ 2=1 673, P 0 05). In children with behavioral problems, the rate of self recovery was 70 6%. Conclusion SID is more common in boys than in girls, indicating the gender difference in development of sensory integration. However, SID tends to recover spontaneously during the children grow up. Therefore it is more important and effective to conduct early intervention in preschool children in order to prevent children from SID.
Efficacy of Modified Xiaoyaosan in Perimenopausal Women with Xerophthalmia

Objective To explore the clinical efficacy of modified xiaoyaosan in perimenopausal women with xerophthalmia.Methods Thirty-four perimenopausal women with xerophthalmia were treated with modified xiaoyaosan and polyethylene glycol eye drops.Patients were evaluated using Xerophthalmia symptom score(fatigue,dryness sensation,foreign body sensation,burning sensation,photophobia,pain,dacryorrhea and redness),corneal fluorescein staining(FL),Schirmer test(SIT) and tear film break-up time(BUT)before and 2 and 4 weeks after treatment.Results Among the 34 patients,seven patients achieved no significant improvement in pain(P0.05),eye fatigue and dryness sensation were relieved in 34,burning sensation in 32,photophobia in 7 and redness in 9 patients 4 weeks after treatment(all P0.05). In addition,corneal FL score,BUT value and SIT value were significantly improved in all patients after treatment(all P0.05). Conclusion The modified xiaoyaosan is valuable for improving ocular symptoms and has no obvious adverse reactions in perimenopausal women with xerophthalmia.
QCD predictions for charm and bottom production at RHIC

We make up-to-date QCD predictions for open charm and bottom production at RHIC in nucleon-nucleon collisions at p S = 200 GeV. We also calculate the electron spectrum resulting from heavy (cid:13)avor decays to allow direct comparison to the data. A rigorous benchmark, including the theoretical uncertainties, is established against which nuclear collision data can be compared to obtain evidence for nuclear e(cid:11)ects.
Utilização de Morfismo como Classificador para Verificação de Assinaturas Off-line

This paper provides contributions to the problem of Off-line signature verification by creating a classifier based on morphism using a technique of triangulation of points. This technique allows checking the distance between the signatures of a particular class, aiming to discrimine false from genuine signatures. In this paper, five scenarios were evaluated using genuine, simulated and random fakes signatures. The fifth scenario use a variable amount of points per experiment, which one obtained the best result, reaching a Global error rate of 0.18.
Exclusive dimuon measurements with LHCb

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Exclusive dimuon measurements with LHCb V. Niess
Multidrug Resistance Reversal Effect of Breast Cancer by Wuweizi Granule Combined with CAF Chemotherapy

Objective: To observe multidrug resistance reversal and the influence on MRP of breast cancer by Wuweizi granule combined with Cyclophosphamide + Doxorubicin + 5-Fluorouracil( CAF) chemotherapy.Method: Seventy-two cases of breast cancer patients of MRP expression were randomly divided into experimental group( 36 cases) and control group( 36 cases) by hospitalized order. The control group received CAF chemotherapy treatment based on the control group treatment,the experimental group added Wuweizi granule. The two groups were treated for 8 weeks. Observation two groups of the clinical efficacy,survival time,median remission,side effects and reversal effective rate of MRP in the two groups were observed after the treatment.Result: The total efficiency of the experimental group 58. 33%,was higher than the control group 30. 56%( P 0. 05). The median remission of the experimental group 12. 5 months was better than the control group 7. 5 months( P 0. 05). The reversal effective rate of MRP in the experimental group 33.3%,was significantly higher than the control group 2. 78%( P 0. 05). Conclusion: Wuweizi granule combined with CAF chemotherapy can effectively alleviate the clinical effects of breast cancer patients,which can effectively reverse multidrug resistance by MRP,plays a certain role.
Identification de la Non-Linearit6 D'Une I~quation Parabolique Quasilineaire

In this work, we study the problem of the determination of the non-linearity in a parabolic equation from measurements over its solution. This corresponds to an usual physical situation, in which the parameter depends on the state of the system (for instance, the heat conduction coefficient depends on the temperature). We first state the problem as a control problem, for which we show the existence of a solution, and we calculate the derivative of the criterion with respect to the nonlinearity without any assumption on the algebraic form of this latter. We finally give a numerical application of the algorithm, which shows that the situation which is here taken in account (estimation of a parameter function depending on the state) is much better, from the identification point of view, than the usually studied situation for distributed system (estimation of a parameter function depending on space and/or time variables).
Short Note Rotational Motions of Seismic Surface Waves in a Laterally Heterogeneous Earth

A number of recent studies have analyzed seismic rotational data using a relationship between transverse acceleration and rotation rate derived for a homoge- neous full space. In this study we explore this relationship further theoretically by presenting a full ray theory (FRT) method to simulate rotational motions of fundamen- tal mode seismic surface waves in smooth, laterally heterogeneous Earth models. In the ray picture of wave propagation the vertical component of the rotational rate mo- tion of fundamental mode Love waves is obtained by dividing the transverse compo- nent of ground acceleration by the Love-wave local phasevelocity beneath the seismic recording station. We illustrate the method with examples of theoretical calculations of T ≈ 40 sec rotational rate ground motions of fundamental Love waves using the crust model CRUST2.0 combined with the mantle model S20RTS for the 25 September 2003 M 8:1 Tokachi-oki earthquake, Japan. FRT rotation synthetics match complete calculations using the spectral-element method very well and fit real data reasonably well. Furthermore, we show that the effect of realistic local structure beneath receivers on rotational motions is strong enough to be observable. FRT calculations could po- tentially help to determine Love-wave local dispersion curves and, thus, to estimate the 1D local shear velocity structure beneath seismic stations from point measure- ments of rotational rate and acceleration ground motions.
Small Bodies: Near and Far Database for thermal infrared observations of small bodies in the Solar System

In this paper, we present the Small Bodies: Near and Far Infrared Database, an easy-to-use tool intended to facilitate the modelling of thermal emission of small bodies of the Solar System. Our database collects measurements of thermal emissions for small Solar System targets that are otherwise available in scattered sources and provides a complete description of the data, including all information necessary to perform direct scientific analyses and without the need to access additional external resources. This public database contains representative data of asteroid observations of large surveys (e.g. AKARI, IRAS, and WISE) as well as a collection of small body observations of infrared space telescopes (e.g. the Herschel Space Observatory) and provides a web interface to access this data. We also provide an example for the direct application of the database and show how it can be used to estimate the thermal inertia of specific populations, e.g. asteroids within a given size range. We show how different scalings of thermal inertia with heliocentric distance (i.e. temperature) may affect our interpretation of the data and discuss why the widely-used radiative conductivity exponent (α = –3/4) might not be adequate in general, as suggested in previous studies.
Minimum Entropy Generation in the Cardiovascular System

Schaible, Niccole Stephanie, M.S., Department of Electrical and Computer Engineering, North Dakota State University, August 2011. Minimum Entropy Generation in the Cardiovascular System. Major Professor: Dr. Dan Ewert. This study was performed under the motivation to find a scheme that could describe the complex behavior of cardiovascular homeostasis. This is hypothesized to be manifested in a thermodynamic description of the cardiovascular system (CVS). Seen from a thermodynamic framework, the mechanics of blood flow can be gauged in similar terms as metabolic exchange at the capillaries thereby providing a holistic and novel perspective on overall CVS function. Entropy generation, a thermodynamic calculation, represents lost work and is hypothesized to reveal something about the "optimal" state of the CVS. In particular, it is hypothesized that the CVS state that generates minimal entropy, given certain constraints, will be physiologically preferred and that cardiovascular control operates to find this state. This will be tested by first proposing a method to calculate entropy generation in the CVS, and secondly characterizing entropy generation across unique CVS states by simulation of a mathematical model.
Spontaneous regression of hepatocellular carcinoma after improving diabetes mellitus: possibly responsible for immune system

症例は60歳代，男性．8年前に肝細胞癌に対し肝部分切除術が施行された．平成23年2月の精査で肝S4/8とS6に再発が認められたため手術予定となった．糖尿病のコントロールが悪くHbA1cが8％台と長期間高値であったため術前にdi-peptidyl peptidase-IV（以下DPP-4）阻害薬内服によりコントロールを行った．DPP-4阻害薬内服前の腫瘍最大径はダイナミックCTでS4/8が5. 0 cm，S6が2. 5 cmであったが，内服開始3週間後のダイナミックCTでは腫瘍最大径はS4/8が2. 5 cm，S6が2. 0 cmと縮小した．AFPとPIVKA-IIはDPP-4阻害薬内服後に著明に低下した．病理組織学検査で肝細胞癌内に著明なリンパ球浸潤を認め，免疫組織化学染色で浸潤リンパ球はCD8陽性T細胞であった．免疫応答が強く関与していると考えられる肝細胞癌自然退縮の1例を経験した．
Minimally invasive direct anterior approach for total hip arthroplasty in the management of femoral neck fractures in older patients

Background:The minimally invasive direct anterior approach for total hip arthroplasty (THA) promises optimal soft-tissue preservation and reduction of tissue damage to accelerate recovery. The aim of this study was to evaluate the results of direct anterior approach of THA as treatment for femoral neck fractures in older patients. Methods:A retrospective study was conducted on elderly patients with femoral neck fractures treated with THA through an anterior or posterolateral approach between July 2008 and June 2010. Thirty-seven patients had anterior surgery, and 34 had posterolateral surgery. Clinical improvement was assessed using a visual analog scale and Harris Hip Score. Acetabular and femoral components were assessed on anteroposterior and lateral radiographic views. Results:Both the mean visual analog score and Harris Hip Score improved after THA. Compared with the posterolateral approach group, the anterior approach group experienced less blood loss, accelerated rehabilitation, and early discharge. At follow-up, the anterior approach group had better functional improvement and no cases of hip dislocation were reported. Conclusions:The anterior technique of THA is safe. The minimal muscular damage allows accelerated rehabilitation.
Combinatorial Nullstellensatz

We present a general algebraic technique and discuss some of its numerous applications in combinatorial number theory, in graph theory and in combinatorics. These applications include results in additive number theory and in the study of graph colouring problems. Many of these are known results, to which we present unified proofs, and some results are new.
Isometric and Eccentric Strength of Elbow Flexors and Extensors

Isometric and eccentric maximum strength of elbow flexors and extensors were measured with a special tension-meter at five steps of elbow joint angulation (45°, 60°, 90°, 130°, 160°). Thirty-one female students served as subjects.The results are summarized as follows:1) Independently of the elbow flexors or extensors and the isometric contraction or eccentric contraction, the muscular strength is maximum at 90° among all the angulations tested.2) Irrsepectively of whether voluntary contractions are performed isometrically or eccentrically, the elbow flexors can exert greater strength than the elbow extensors except when the elbow joint is bent too extremely.3) It is a common tendency between the elbow flexors and extensors that the maximum strength of eccentric contractions is greater than that of isometric contractions.These results were discussed in comparison with previous works in this field.
Absence of intact nef sequences in a long-term survivor with nonprogressive HIV-1 infection

Although disease develops within 10 years in most persons infected with human immunodeficiency virus type 1 (HIV-1), some remain symptom-free for prolonged periods.1,2 Most long-term asymptomatic survivors of HIV-1 infection still have evidence of disease progression in the form of declining CD4+ lymphocyte concentrations. However, some rare persons not only are asymptomatic but also maintain stable levels of CD4+ lymphocytes in the normal or near-normal range. Although the definition of nonprogression may vary, approximately 5 percent of seropositive persons have shown no HIV-related disease or declines in CD4+ cell counts despite 10 or more years of documented HIV-1 infection.
Hematopoietic stem cell transplantation for β-thalassemia major

Objective To discuss the feasibility of hematopoietic stem cell transplantation for β thalassemia major. Methods Bone marrow or cord blood of sibling was transplanted to 4 children with thalassemia, whose type of gene mutations was homozygous. All of them were diagnosised as β thalassemia major. HLA type was matched in 2 cases, and mismatched with 1 locus in the other 2. RBC type was mismatched in 1 cases. Pretransplant condition including busulfan (BU) 16 mg/kg, cyclophosphamide (CY) 200 mg/kg and anti thymocyte globulin (ATG) 90 mg/kg. Graft versus host disease (GVHD) prophylaxis was cyclosporine A (Cs A) and methotrexate (MTX). Results Two Children had “serum sickness” during pretransplant condition; two children had grade Ⅱ acute GVHD and 1 developed chronic GVHD, 1 case veno occlusive disease (VOD), 1 case cytomegalovirus (CMV) interstitial pneumonia and 1 case fungemia post transplant, which had been cured. The average time for peripheral WBC recovery1.0×10 9/L was 16 days, 18 days for neutrophile granulocyte0.5×10 9/L, 59 days for Plt50×10 9/L and 39 days for Hb100 g/L. The average time for WBC recovery to normal was at day 24. The average time of last blood transfusion for patients was 29 days. The patients had to receive about 100 ml blood infusion per 2 months pretransplant, while not infused for 7～15 months up to now with Hb100 g/L. Gene mutation type of patients had changed to donor's. Conclusion We report a successful transplantation of bone marrow and cord blood stem cells for thalassemia major in China. This will give a new strategy for treatment of the disease and further expand the use of stem cells transplantation.
Assessment and Prospective Application of Information and Communication Technology Usage among Secondary School Teachers in Enugu Urban, Nigeria\

Aims: To assess the secondary school teachers’ usage of ICT in Enugu Urban, Nigeria. Study Design: Descriptive survey design (Questionnaire). Place and Duration of Study: Department of Education, Institute of Ecumenical Education Thinkers Corner, Enugu, Nigeria, between April 2011 and December 2011. Methodology: 253 teachers were randomly selected from 40 public secondary schools in Enugu Urban, Nigeria. Assessments were made on ICT facilities available to teachers, adequacy level of exposure to these ICT facilities, perceived benefits and challenges facing ICT usage and adoption among teachers. Results: It showed that most of the ICTs were not available in schools and the teachers were not too well exposed to ICT facilities. The study also x-rayed the teachers’ perceived benefits to ICT usage and challenges facing ICT usage in secondary schools. Conclusion: It was recommended among others that there should be: inclusion of ICT programmes at various teachers educational institutions, provision of functional and Original Research Article British Journal of Education, Society & Behavioural Science, 4(3): 336-349, 2014 337 adequate ICT facilities in schools by school administrators, proper funding of education by the government, provision and improvement of infrastructures especially electricity and finally establishment of ICT crash programmes for teachers and subsequent update.