Miracle-dz/UniFAR-FTUs huggingface dataset:
S´election de mod`ele incluant des composantes principales

We consider a high dimensional linear regression model and more precisely the case of a factor model where the vector of explanatory variables can be decomposed as a sum of two random terms representing respectively speciﬁc and common variability of the predictors. We show at ﬁrst that usual prameter estimation and variable selection procedures such as Lasso or Dantzig selector are eﬃcient in this context with the additional assumption that the vector of parameters is sparse. Such an assumption may be however restrictive. We thus introduce an augmented regression model which includes principal components. We show that these components can be accurately estimated from the sample and then we concentrate on the theoretical properties of the augmented model. Mots cl´es. Mod`ele de r´egression lin´eaire, grande dimension, s´election de variables, composantes principales, Lasso, s´electeur Dantzig.
Compact high isolation wideband 4G and 5G multi‐input multi‐output antenna system for handheld and internet of things applications

This article presents a compact wideband multi‐input multi‐output (MIMO) antenna with a high port‐to‐port isolation, having a height h = 3.5 mm for 4G, 5G, and Internet of things (IoT) applications. Two identical planar inverted‐F antennas (PIFA) are used in this antenna system. For achieving wideband characteristics, closed‐ended and open‐ended rectangular slots are etched out on top plate of each PIFA, whereas a slot is etched in ground plane under the top plate of each PIFA. For achieving high isolation, a rectangular slot is etched out in the center of ground plane between two PIFAs. For further reduction in mutual coupling, a small rectangular strip is connected between the top plates of two PIFAs that introduce an antiresonance for enhancing isolation between two PIFA elements. The minimum isolation obtained between the ports of the two PIFAs is about −20 dB. The minimum impedance bandwidth obtained by the two PIFAs is from 2 to around 3.6 GHz, thus become a wide band antenna covering WLAN band (2.45GHz), 4G‐LTE bands, WiMAX bands (IMT‐2.1 GHz, IMT‐2.3 GHz, and IMT‐E 2.6 GHz), and a sub‐6 GHz 5G band (3.4‐3.6 GHz). The simulated results are compared with the measured ones that are generally found in good agreement. Being low profile and compact, this antenna can be used for advanced 5G communication systems and IoT devices.
Genetic etiology of adult intellectual disability (ID) of unknown cause in Qatar: a retrospective study

Background: Intellectual disability (ID) is a common condition that consists of a heterogeneous group of clinical conditions with different etiologies, including genetic conditions. Identifying those with a genetic cause results in better clinical management. Aim: To identify the genetic etiology of ID in adult patients with unknown etiology presenting to a specialist learning disability service in Qatar. Methods: Retrospective review of chart notes of patients referred for ID service from January 1, 2015 to January 1, 2020. Results: Of the 228 patients, 82 had a known cause of ID and did not require genetic testing, 22 had an unknown cause and underwent genetic testing, and 124 had an unknown cause and did not undergo genetic testing. Of the 82 patients with a known cause of ID, about one-half had an autistic spectrum disorder (ASD) and 18 patients had a genetic disorder. Of the 22 patients who underwent genetic testing, 2 were positive for the Fragile-X mental retardation 1 gene, 3 underwent chromosomal microarray, and 7 underwent whole-exome sequencing. Seven abnormal genes were identified. Conclusions: Identifying the underlying genetic etiology of patients with ID has major implications for diagnostic and therapeutic approaches. Additionally, it guides a prediction of the natural history of the disease and makes it possible to test at-risk family members.
Middle school students’ difficulties in proportional reasoning

The purpose of this study was to investigate 6th, 7th and 8th grade students’ common difficulties regarding rate and ratio problems. The data was collected from 149 sixth, seventh, and eighth grade students enrolled in public middle schools in Balikesir in response to three typical proportionality questions. Data analysis revealed that the confusion of unit rate identification and algorithmically based mistakes were identified as major difficulties in solving the missing-value proportion and comparison problems. To address the potential difficulties students have regarding rate and ratio problems, students should be exposed to different types of proportional problems.
Prevalence of depression and associated factors among adult cancer patients receiving chemotherapy during the era of COVID-19 in Ethiopia. Hospital-based cross-sectional study

Background Depression is a major public health problem among cancer patients undergoing chemotherapy. It compromises patient outcomes, resulting in higher rates of mortality. Currently, there are little data on the prevalence of depression in Sub-Sharan countries. Therefore, the current study was done to assess the prevalence of depression among adult cancer patients and its associated factors in Ethiopia. Method An institutional based cross-sectional study was conducted among 420 adult cancer patients from 1st March to April 30, 2021. Systematic random sampling technique was used to recruit participants. Depression was assessed using the Patient Health Questionnaire-9. The collected data were coded and entered into Epi-data version 4.2 and exported to SPSS version 25 for analysis. Bivariate binary logistic regression was performed to select factors that will be included in multivariate analysis, and variables with a p-value < 0.05 were included in multivariate analysis. In multivariate analysis, odds ratios and their 95% confidence intervals were computed and variables with p-value < 0.05 were considered to declare a significant association. Results In this study, the prevalence of depression was 33.1% (95% CI = 0.2858, 0.3761). Minimal symptoms of depression, minor depression, moderate depression, moderate severe depression, and severe depression were found to be 272 (64.8%), 9 (2.1%), 104 (24.8%), 28 (6.7%), and 7 (1.7%), respectively. Those cancer patients who had unemployed status, sacked from jobs, and had stage IV cancer were most likely to develop depression, whereas patients who completed primary education, colon, prostate and cervical cancer were less likely to have depression. Conclusion Depression is found to be a major public health concern for adult cancer patients in Ethiopia. To reduce the occurrence of depression among cancer patients, special attention is needed.
De ning Optimal Dosing of Nimodipine in Aneurysmal Subarachnoid Hemorrhage: Study Protocol for a Systematic Review

judith bellapart (  judithbellapart@gmail.com ) Department of Intensive Care Medicine, Royal Brisbane and Women’s Hospital, Brisbane, Australia. 2 Burns Trauma and Critical Care Research Centre, the University of Queensland, Herston; Brisbane, Australia. https://orcid.org/0000-0001-7135-6723 Kevin B Laupland Royal Brisbane and Woman's Hospital Health Service District: Royal Brisbane and Women's Hospital Eva Malacova QIMR Berghofer: QIMR Berghofer Medical Research Institute Jeffrey Lipman Royal Brisbane and Women Hospital Jason A Roberts Royal Brisbane and Women Hospital Jennifer Paratz Royal Brisbane and Women Hospital
Achievable Error-Rate Analysis of OFDM Communication Systems Incorporating MRC Diversity Technique over Correlated Nakagami-m Fading Channels

—For the purpose of more effectively investigating the bit error-rate (BER) and symbol error-rate (SER) performances achieved by orthogonal frequency division multiplexing (OFDM) communication systems employing maximal-ratio combining (MRC) receiver architecture, concise closed-form asymptotic BER and SER formulas are derived over correlated Nakagami-m fading channels. By utilizing the proposed simple asymptotic BER and SER expressions, explicit insights into the achievable error-rate performance (i.e., modulation gain and diversity order) can be also obtained for the various modulation schemes and channel conditions, particularly in the high signal-to-noise ratio (SNR) regime. To be specific, we derive the exact expressions of the modulation gain obtained from the L -branch MRC OFDM systems with binary signals and M -ary quadrature amplitude modulation ( M - QAM) schemes, and also show that the full diversity of order mL can be asymptotically achieved even in correlated Nakagami-m fading environments.
Liam (2014) Testing of a lightweight SiC power module for avionic applications. In: 7th IET International Conference on Power Electronics, Machines and Drives

Functional and performance tests of a three-phase, two-level power module based on CREE 1.2kV SiC MOSFETs for avionic applications is presented in this paper. SiC devices have superior properties over conventional Si devices at high voltage operations and these properties make SiC devices at-tractive for avionic industry in order to reduce size of power electronic converters while maintaining high efﬁciency. This paper starts with a brief explanation of thermo-mechanical design approach of SiC power module. Thermo-mechanical design is followed by test setup and experimental results for different load and switching frequency conditions. The module is tested up to 540V DC link voltage, 6kW output power with 100kHz switching frequency. Experimental results show that the module can be successfully operated with high efﬁciency at high switching frequencies.
Common Factors in Psychotherapy: The Autonomic Nervous System Final Common Pathway

The practice of psychotherapy is characterized by allegiance to different schools of thought, mainly psychodynamic therapies, behaviour therapies, cognitive behaviour therapies, humanistic therapies, and integrative therapies. Proponents of these schools of thought propose that psychotherapies are effective because of therapeutic factors specific to their perspective. From about the late 1930’s however, there has been growing consensus that the different forms of psychotherapy are equally effective. This lack of superiority of one form of psychotherapy over others is argued to be because of psychotherapy factors which are common across the different schools of thought. The most frequently cited factors are events happening outside therapy, the nature of the therapist-client relationship, the placebo effect, and, the specific psychotherapy techniques used. In this paper, I propose that the Autonomic Nervous System (ANS), rather than these common factors, is the final common pathway for psychothera py outcome. The implications for the practice of psychotherapy are discussed.
S^p _2 \subseteq ZPP^{NP}

We show that the class S_2^p is a subclass of ZPPNP. The proof uses universal hashing, approximate counting and witness sampling. As a consequence, a collapse first noticed by Samik Sengupta that the assumption NP has small circuits collapses PH to S_2^p becomes the strongest version to date of the Karp-Lipton Theorem. We also discuss the problem of finding irrefutable proofs for S_2^p in ZPPNP.
Suppression of AMOC variability at increased CO 2

Several additional figures provide some useful details. Figure S1 shows the time response of AMOC at 26, 45, and 60◦N from the preindustrial simulation, similar to Fig. 1 in the main text for the 4×CO2 simulation; the oscillatory behavior at the lower latitudes is apparent. Figure S2 shows the time-response for a simulation where CO2 is increased gradually at 1% per year rather than abruptly as in the 4×CO2 simulation to evaluate whether the observed changes depend on the unrealistic abrupt nature of the forcing; there is no corresponding quasi-equilibrium state in this simulation. Fig. S3 shows the evolution of upper ocean heat content anomalies before and after an AMOC minimum for the preindustrial simulation, similar to Figure 6 in the paper. Figure S4 is similar to Figure 4 in the main text, except that where Figure 4 evaluated relationships relative to AMOC at 45◦N for the preindustrial and 60◦N for the 4×CO2 simulations, Fig. S4 evaluates the relationships in both simulations for AMOC at 45◦N. While this is less useful for understanding whether the “new” oscillation at 60◦ in the 4×CO2 simulation arises from a similar mechanism as the lowerlatitude oscillation in the preindustrial case, it is useful for illustrating that the differences apparent in Figure 4 are not simply a result of having evaluating relationships at a different latitude. Finally, the effect of AMOC variability on sea ice in the 4×CO2 simulation is shown in Fig. S5.
Approaching the upper limits of the local density of states via optimized metallic cavities

: By computational optimization of air-void cavities in metallic substrates, we show that the local density of states (LDOS) can reach within a factor of ≈ 10 of recent theoretical upper limits and within a factor ≈ 4 for the single-polarization LDOS, demonstrating that the theoretical limits are nearly attainable. Optimizing the total LDOS results in a spontaneous symmetry breaking where it is preferable to couple to a speciﬁc polarization. Moreover, simple shapes such as optimized cylinders attain nearly the performance of complicated many-parameter optima, suggesting that only one or two key parameters matter in order to approach the theoretical LDOS bounds for metallic resonators.
STUDYING DISEASE TRANSMISSION, SUPERIORITY OF LIFE AND CONNECTED COSTS WITH HYPOGLYCEMIA IN DIABETIC CASES IN PAKISTAN

: Objective: To measure load of hypoglycemia in respondents having diabetes mellitus in Pakistan, counting epidemiological information and data identifying with the use of social security assets (HRU) and expenditures, and patient personal satisfaction. Methods: Our current research was conducted at Allied Hospital, Faisalabad. A deliberate handwriting verification (SLR) remained led to identify unique data retained for research of disease transmission, HRU and costs, and in addition to QoL related to hypoglycemia in cases by diabetes mellitus in Pakistan, distributed in Pakistani or English, in May 2017 to April 2019. Results: Eighteen research studies, including 18 surveys, were recognized in LRS and selected for review. The assessed rate of occasions of extreme hypoglycemia (hypoglycemia hypoglycemia) by comprehension each year increased from 0.93 to 2.51 in cases having DM type-1 and from 0.31 to 0.64 in cases by type 2 DM. Information on HRU is highly contrasted from one thought to the next, making this hard to determine. Total expenditures per HS event ranged from €410.98 in patients with T2DM to €714.11 in respondents having DM. Work absenteeism was accounted for in 12.81-19% of employed respondents. In addition, patients who experienced hypoglycemic episodes reported greater fear and poorer quality of life than these who did not report such incidents. Conclusion: Even though information retained for LRS was hard to integrate because of the heterogeneity of examination structures and patient characteristics across the 18 surveys, our survey recognized a high weighting related to hypoglycemic occasions in HRU and expenditures, and patient quality of life. Further research is mandated to reach agreement on the definition of hypoglycemia and the research project to offer powerful indication on load of hypoglycemia and to precisely measure effect of the current intense entanglement in Pakistan.
Why Are the First Day Returns of China’s IPOs So High?

We investigate the causes of the high first day returns of Chinese firms making an initial public offering (IPO) of A-shares from 1991 to 2003 on Shanghai and Shenzhen stock exchanges. Our results show an average underpricing of 175.21 percent. We argue that the IPO underpricing is an interaction of ex-market underpricing and on-market overpricing. The high first day returns of China’s IPOs are most likely generated from on-market overpricing. Government intervention, market speculation, special ownership structure, strategy of proceeds maximization and risk concerns are the main drivers of the high first day returns. However, the high first day returns have decreased significantly in recent years. We explained this change by testing the risk composition hypothesis, the realignment of incentives hypothesis and the changing issuer objective hypothesis, which shows that the reduction in risk, senior managerial shares and seasoned offerings mitigate the first day returns. ABSTRACT We investigate the causes of the high first day returns of Chinese firms making an initial public offering (IPO) of A-shares from 1991 to 2003 on Shanghai and Shenzhen stock exchanges. Our results show an average underpricing of 175.21 percent. We argue that the IPO underpricing is an interaction of ex-market underpricing and on-market overpricing. The high first day returns of China’s IPOs are most likely generated from on-market overpricing. Government intervention, market speculation, special ownership structure, strategy of proceeds maximization and risk concerns are the main drivers of the high first day returns. However, the high first day returns have decreased significantly in recent years. We explained this change by testing the risk composition hypothesis, the realignment of incentives hypothesis and the changing issuer objective hypothesis, which shows that the reduction in risk, senior managerial shares and seasoned offerings mitigate the first day returns. We indicate that way generating ex-market underpricing. the models with a sub-sample of recent years, we test the risk composition hypothesis, realignment of incentive hypothesis and changing issuer objective function hypothesis.
Challenges of controlling delinquency and juvenile recidivism in correctional centre in Ondo State, Nigeria

This study examined the challenges of controlling delinquency and juvenile recidivism in correctional centres. It explored the statutory roles of correctional institutions and the challenges of a correctional institution in Ondo State, Nigeria. The research design is explorative in nature. The study employed quantitative (survey) and qualitative (Focus Group Discussion) and personal observation research methods. The study involved Forty-two respondents (10 personnel of the correctional centre and 32 juvenile delinquents). The data collected were analyzed with quantitative and qualitative methods of data analysis with the aid of descriptive statistics. The study found that male children are more prone to delinquency and juvenile recidivism than females. Poor family background, dysfunctional family system, peer group influence, ineffective juvenile correctional institutions and weak religious institutions and so on are the major factors influencing delinquency and juvenile recidivism in Nigeria. Also, there are a lot of challenges faced by juveniles in the correctional institutions in Nigeria such as health/medical facilities, poor rehabilitation facilities and ineffective rehabilitation programmes. Several rehabilitative, vocational skills programmes and facilities are not available in the juvenile correctional institution. Besides, there are multiple challenges militating against the efficiency and effectiveness of the juvenile correctional centre in Ondo State. The study, therefore, recommends that governments, parents, community, non-governmental organizations and other stakeholders should put all hands on deck to solve the challenges of controlling delinquency and juvenile recidivism, and secure the society from adult and advanced criminality. Keywords: Challenges, Control, Correctional Institution, Delinquency, Juvenile
Principles of QSAR Modeling: Comments and Suggestions From Personal Experience

At the end of her academic career, the author summarizes the main aspects of QSAR modeling, giving comments and suggestions according to her 23 years’ experience in QSAR research on environmental topics. The focus is mainly on Multiple Linear Regression, particularly Ordinary Least Squares, using a Genetic Algorithm for variable selection from various theoretical molecular descriptors, but the comments can be useful also for other QSAR methods. The need for rigorous validation, also external, and for applicability domain check to guarantee predictivity and reliability of QSAR models is particularly highlighted. The commented approach is the “predictive” one, based on chemometrics, and is usefully applied to the prioritization of environmental pollutants. All the discussed points and the author’s ideas are implemented in the software QSARINS, as a legacy to the QSAR community.
People Identification Based on Person Image and Additional Physical Parameters Comparison

– This paper proposes and presents one approach for people identification based on image and additional physical parameters, height and step length, of a person comparison. People identification is very important in many areas of human life. There are large number of identification methods (biometric methods) that include a different scope of methods, for example fingerprint identification, hand geometry identification, facial recognition, methods based on human eye identification (retina and iris), gait recognition etc. Most of that methods require some kind of interaction with a person, what could be a problem in many practical applications. The method that does not require any interaction with a person is gait recognition. One approach for a people identification based on gait recognition, that uses silhouettes of a person and parameters of person height and step length, is proposed and presented in this paper.
Saliency-Based Microcalcification Clusters Segmentation In Mammography

: This paper proposes a new methodology for automatic segmentation of micro-calcification clusters in mammography. The proposed method is based on two main steps: The first step is the detection of microcalcifications and the second step is the definition of micro-calcification clusters. The microcalcifications detection step uses self-complementary top-hat transform and graph-based visual saliency, and the definition of the clusters step uses the hierarchical clustering algorithm to determine proper clusters. The proposed approach manages to segment multiple microcalcifications clusters in a single image, in a fully automated way, without any human intervention. The proposed method is tested on 35 images from the Mammographic Image Analysis Society (MIAS) database and 160 images from Curated Breast Imaging Subset of Digital Database for Screening Mammography (CBIS-DDSM). The experimental results show that the proposed method outperforms the state-of-the-art.
AllergensProduction Induced by Inhaled Fungal IL-6 Is Required for Airway Mucus

Allergic asthma is caused by inhaled allergens and is characterized by airway eosinophilia, as well as mucus hypersecretion, which can lead to airﬂow obstruction. Despite the association of increased IL-6 levels with human atopic asthma, the contribution of IL-6 to the development of allergic airway inﬂammation triggered by inhaled allergens remains unclear. In this study, we examined the role of IL-6 in a mouse model of allergic airway inﬂammation induced by direct airway exposure to extracts of Aspergillus fumigatus , a common allergen in humans. We show that inhaled A. fumigatus extracts rapidly trigger the production of IL-6 in the airways. IL-6 appears to be dispensable for the recruitment of eosinophils to the lung during the development of allergic airway inﬂammation. However, IL-6 is essential for mucus hypersecretion by airway epithelial cells triggered in response to inhaled A. fumigatus Ags. Impaired mucus production caused by IL-6 deﬁciency correlates with a severe reduction in the levels of IL-13, a major inducer of mucin glycoproteins. Thus, IL-6 is a key regulator of speciﬁc hallmark features of allergic airway inﬂammation and it could be a potential target for pulmonary diseases that are associated with goblet cell metaplasia and mucus hypersecretion. The Journal of Immunology, 2009, 183: 1732–1738.