Miracle-dz/UniFAR-FTUs huggingface dataset:
Energy Efficiency Optimization in Relay-Assisted MIMO Systems With Perfect and Statistical CSI

A framework for energy-efficient resource allocation in a single-user, amplify-and-forward (AF), relay-assisted, multiple-input-multiple-output (MIMO) system is devised in this paper. Previous results in this area have focused on rate maximization or sum power minimization problems, whereas fewer results are available when bits/Joule energy efficiency (EE) optimization is the goal. Here, the performance metric to optimize is the ratio between the system's achievable rate and the total consumed power. The optimization is carried out with respect to the source and relay precoding matrices, subject to quality-of-service (QoS) and power constraints. Such a challenging non-convex optimization problem is tackled by means of fractional programming and alternating maximization algorithms, for various channel state information (CSI) assumptions at the source and relay. In particular the scenarios of perfect CSI and those of statistical CSI for either the source-relay or the relay-destination channel are addressed. Moreover, sufficient conditions for beamforming optimality are derived, which is useful in simplifying the system design. Numerical results are provided to corroborate the validity of the theoretical findings.
Incremental Dynamic Controllability in Cubic Worst-Case Time

It is generally hard to predict the exact duration of an action. Uncertainty in durations is often modeled in temporal planning by the use of upper bounds on durations, with the assumption that if an action happens to be executed more quickly, the plan will still succeed. However, this assumption is often false: If we finish cooking too early, the dinner will be cold before everyone is ready to eat. Simple Temporal Problems with Uncertainty (STPUs) allow us to model such situations. An STPU-based planner must verify that the plans it generates are executable, captured by the property of dynamic controllability. The Efficient IDC (EIDC) algorithm can do this incrementally during planning, with an amortized complexity per step of O(n3) but a worst-case complexity per step of O(n4). In this paper we show that the worst-case run-time of EIDC does occur, leading to repeated reprocessing of nodes in the STPU while verifying the dynamic controllability property. We present a new version of the algorithm, EIDC2, which through optimal ordering of nodes avoids the need for reprocessing. This gives EIDC2 a strictly lower worst-case run-time, making it the fastest known algorithm for incrementally verifying dynamic controllability of STPUs.
Student Teachers’ Perceptions of Directive and Nondirective Supervisory Behavior

AbstractSixty-six student teachers rated two tape recordings of a supervisory conference, one in which the supervisor was very directive and one in which the supervisor was nondirective. Contrary to the predicted outcome, subjects expressed a clear preference for directive supervisory behavior. Potential explanations for the discrepancy between the current results and those of earlier studies are discussed.
Selective Ignorance and Agricultural Research

Scholars working in science and technology studies have recently argued that we could learn much about the nature of scientific knowledge by paying closer attention to scientific ignorance. Building on the work of Robert Proctor, this article shows how ignorance can stem from a wide range of selective research choices that incline researchers toward partial, limited understandings of complex phenomena. A recent report produced by the International Assessment of Agricultural Knowledge, Science, and Technology for Development serves as the article’s central case study. After arguing that the forms of selective ignorance illustrated in cases like this one are both socially important and difficult to address, I suggest several strategies for responding to them in a socially responsible manner.
Distributed Outlier Detection using Compressive Sensing

Computing outliers and related statistical aggregation functions from large-scale big data sources is a critical operation in many cloud computing scenarios, e.g. service quality assurance, fraud detection, or novelty discovery. Such problems commonly have to be solved in a distributed environment where each node only has a local slice of the entirety of the data. To process a query on the global data, each node must transmit its local slice of data or an aggregated subset thereof to a global aggregator node, which can then compute the desired statistical aggregation function. In this context, reducing the total communication cost is often critical to the overall efficiency. In this paper, we show both theoretically and empirically that these communication costs can be significantly reduced for common distributed computing problems if we take advantage of the fact that production-level big data usually exhibits a form of sparse structure. Specifically, we devise a new aggregation paradigm for outlier detection and related queries. The paradigm leverages compressive sensing for data sketching in combination with outlier detection techniques. We further propose an algorithm that works even for non-sparse data that concentrates around an unknown value. In both cases, we show that the communication cost is reduced to the logarithm of the global data size. We incorporate our approach into Hadoop and evaluate it on real web-scale production data (distributed click-data logs). Our approach reduces data shuffling IO by up to 99%, and end-to-end job duration by up to 40% on many actual production queries.
Expanding the Horizons of Accounting Education: Incorporating Social and Critical Perspectives

This paper examines a case of accounting education change in the context of increased interest in ethical, social, and environmental accountability, presenting a reflexive case study of a new university accounting subject incorporating social and critical perspectives. Foundational pedagogical principles and key aspects of curriculum are outlined. The pedagogy draws on the integration of humanistic and formative education (principally based on Gramscian and Freirean approaches) and deep and elaborative learning. Two key aspects of curriculum and pedagogy are analysed. First, a curriculum based on a broad conception of accounting and accountability as power-laden social processes, drawing on a range of research literature. Second, the adoption of an authentic, supportive, and collegial team teaching approach. Students' feedback relating to identified issues is presented. The paper contributes to the renewal of the social and ethical worth of accounting education, concluding that deep accounting educational change encompasses both the content and practice of classroom activity and changes in the self-consciousness of staff and students.
miR-145 is differentially regulated by TGF-β1 and ischaemia and targets Disabled-2 expression and wnt/β-catenin activity

The effect of wnt/β‐catenin signalling in the response to acute myocardial infarction (AMI) remains controversial. The membrane receptor adaptor protein Disabled‐2 (Dab2) is a tumour suppressor protein and has a critical role in stem cell specification. We recently demonstrated that down‐regulation of Dab2 regulates cardiac protein expression and wnt/β‐catenin activity in mesenchymal stem cells (MSC) in response to transforming growth factor‐β1 (TGF‐β1). Although Dab2 expression has been shown to have effects in stem cells and tumour suppression, the molecular mechanisms regulating this expression are still undefined. We identified putative binding sites for miR‐145 in the 3′‐UTR of Dab2. In MSC in culture, we observed that TGF‐β1 treatment led to rapid and sustained up‐regulation of pri–miR‐145. Through gain and loss of function studies we demonstrate that miR‐145 up‐regulation was required for the down‐regulation of Dab2 and increased β‐catenin activity in response to TGF‐β1. To begin to define how Dab2 might regulate wnt/β‐catenin in the heart following AMI, we quantified myocardial Dab2 as a function of time after left anterior descending ligation. There was no significant Dab2 expression in sham‐operated myocardium. Following AMI, Dab2 levels were rapidly up‐regulated in cardiac myocytes in the infarct border zone. The increase in cardiac myocyte Dab2 expression correlated with the rapid and sustained down‐regulation of myocardial pri–miR‐145 expression following AMI. Our data demonstrate a novel and critical role for miR‐145 expression as a regulator of Dab2 expression and β‐catenin activity in response to TGF‐β1 and hypoxia.
More than 15 years of human behaviour genetic research at the University of Warsaw

Human behaviour genetic research has been conducted at the University of Warsaw for more than 15 years. The main focus of this work have been the origins of individual differences in temperament and other personality traits. Other areas of interest include attitudes, risk factors for human health, and posttraumatic stress disorder (PTSD). The majority of the research is conducted using quantitative genetic methods although recently work using molecular techniques has also begun to develop. This article reviews the most important directions and findings of this research.
Assimilation and Transnationalism: Determinants of Transnational Political Action among Contemporary Migrants1

This article presents evidence of the scale, relative intensity, and social determinants of immigrants’ transnational political engagement. It demonstrates that a stable and significant transnational field of political action connecting immigrants with their polities of origin does indeed exist. The results help temper celebratory images of the extent and effects of transnational engagement provided by some scholars. The article shows that migrants’ habitual transnational political engagement is far from being as extensive, socially unbounded, “deterritorialized,” and liberatory as previously argued. Transnational political action, then, is regularly undertaken by a small minority, is socially bounded across national borders, occurs in quite specific territorial jurisdictions, and appears to reproduce preexisting power asymmetries. The potential of transnationalism for transforming such asymmetries within and across countries has yet to be determined.
Comparing the Picture Exchange Communication System and Sign Language Training for Children With Autism

This study compared the effects of Picture Exchange Communication System (PECS) and sign language training on the acquisition of mands (requests for preferred items) of students With autism. The study also examined the differential effects of each modality on students' acquisition of vocal behavior. Participants Were tWo elementary school students With autism enrolled in a suburban public school. Training sessions involved presentations of preferred items, prompting and prompt fading procedures. Probes Were conducted to evaluate the generalization of learned mands to classroom teachers. For one participant, sign language training produced a higher percentage of independent mands. PECS training produced a higher percentage of independent mands for the other participant. For both participants, sign language training produced a higher percentage of vocalizations during training. Mands learned With the experimenter generalized to classroom teachers. The results of the study suggest that acquisition of picture exchange and sign language may vary as a function of individual student characteristics, specifically, motor imitation skills prior to intervention. HoWever, further research is needed to determine the optimal procedures for teaching both modalities to students With communication difficulties.
Surface Cyclones in the ERA-40 Dataset (1958–2001). Part I: Novel Identification Method and Global Climatology

Abstract A novel method is introduced to generate climatological frequency distributions of meteorological features from gridded datasets. The method is used here to derive a climatology of extratropical cyclones from sea level pressure (SLP) fields. A simple and classical conception of cyclones is adopted where a cyclone is identified as the finite area that surrounds a local SLP minimum and is enclosed by the outermost closed SLP contour. This cyclone identification procedure can be applied to individual time instants, and climatologies of cyclone frequency, fc, are obtained by simple time averaging. Therefore, unlike most other climatologies, the method is not based on the application of a tracking algorithm and considers the size of cyclones. In combination with a conventional cyclone center tracking algorithm that allows the determination of cyclone life times and the location of cyclogenesis and cyclolysis, additional frequency fields can be obtained for special categories of cyclones that are gener.
Micafungin: A New Echinocandin Antifungal

The echinocandins represent the newest class of antifungals to combat infections caused by Candida sp. Micafungin is an echinocandin recently approved by the United States Food and Drug Administration. It is indicated in adults for esophageal candidiasis and prophylaxis against candidal infections in hematopoietic stem cell transplant recipients. Micafungin exhibits in vitro fungicidal activity against Candida sp, including fluconazole‐resistant isolates. Its in vivo efficacy is comparable to that of fluconazole in the treatment of esophageal candidiasis and superior to that of fluconazole for prophylaxis of invasive candidal infections. Because it is not significantly metabolized by the cytochrome P450 3A system, micafungin is associated with few drug interactions. Micafungin does not require adjustment in patients with renal and/or hepatic impairment, and it has been shown to be well tolerated in both adult and pediatric patients. Its efficacy against Candida sp, coupled with its overall safety and drug interaction profiles, makes it an attractive option in the treatment against esophageal candidiasis and prophylaxis against invasive candidal infections.
Pharmacodynamic response and inhibition of growth of human tumor xenografts by the novel histone deacetylase inhibitor PXD101.

Histone acetylation has a central role in the control of gene expression, influencing transcriptional control of many genes, including tumor suppressor genes. PXD101 is a novel hydroxamate-type inhibitor of histone deacetylase activity that inhibits histone deacetylase activity in HeLa cell extracts with an IC(50) of 27 nM and induces a concentration-dependent (0.2-5 micro M) increase in acetylation of histone H4 in tumor cell lines. PXD101 is cytotoxic in vitro in a number of tumor cell lines with IC(50)s in the range 0.2-3.4 micro M as determined by a clonogenic assay and induces apoptosis. Treatment of nude mice bearing human ovarian and colon tumor xenografts with PXD101 (10-40 mg/kg/day i.p.) daily for 7 days causes a significant dose-dependent growth delay with no obvious signs of toxicity to the mice. Growth delay is also observed for xenografts of cisplatin-resistant ovarian tumor cells. A marked increase in acetylation of H4 is detected in blood and tumor of mice 3 h after treatment with PXD101. The inhibition of growth of human tumor xenografts in mice, with no apparent toxicity, suggests that PXD101 has potential as a novel antitumor agent. Furthermore, the ability to measure histone acetylation in blood samples could provide a suitable pharmacodynamic end point to monitor drug activity.
APPLICATION OF TERRESTRIAL LASER SCANNING FOR HERITAGE CONSERVATION IN YUNGANG GROTTO

Terrestrial laser scanner was applied extensively in the heritage documentation in recent years, and laser point-cloud is an important sort of data source for making high-resolution 3D model. As a famous world culture heritage with thousand year history, Yungang Grotto was the first large-scale stone engraving in China which was destroyed by the wind erosion seriously and needed a rescuing conservation for its detailed 3D information. This paper presents a technological method for conserving a virtual Grotto by terrestrial laser scanner with digital images, and describes its datum processing workflow for making the Grotto’s 3D model integrated with vector data, and also introduces the way of smoothing high-quality contour charts for some bodhisattva in this Grotto. The experiment proves these methods are reliably and efficiently for heritage conservation.
The Social Creation of Poverty and Dependency in Old Age

ABSTRACT This article examines in detail some recent data on the living standards of elderly people. It is argued that poverty is related to low resources and restricted access to resources and therefore the article includes summarized information about a wide range of benefits and services. Questions are raised concerning the various social policies and processes which have contributed to the creation of poverty and dependency in old age. The growing importance of retirement is singled out for attention as one significant factor contributing to the depressed social status of the elderly, and as part of the general tendency in British society to devalue the worth of elderly people. It is this social relationship between age and the labour market which deserves attention from policy-makers, who have tended to concentrate on the consequences rather than the causes of dependency.
Substitution patterns in the phonology of Spanish-speaking children

The purpose of this study was to examine the nature of substitution errors in typically developing Spanish-speaking children and those with phonological disorders. Previous research with English-speaking children has indicated that the frequency and types of substitution errors are two types of information that speech-language pathologists can use to differentially diagnose phonological disorders. In addition, previous studies with Italian speakers [Bortolini, U. , & Leonard, L. (). The speech of phonologically disordered children acquiring Italian. Clinical Linguisitcs & Phonetics, 5, 1 – 12. ] and Portuguese speakers [Yavaş, M. , & Lamprecht, R. (). Processes and intelligibility in disordered phonology. Clinical Linguistics and Phonetics, 2, 329 – 345. ] have indicated that substitution errors differ based on ambient language. No study has examined this phenomenon in Spanish-speaking children. In the current study, frequency and types of substitution errors in 39 typically developing children were compared to those in 39 age-matched children with phonological disorders. For both singletons and consonant clusters, typically developing children utilized a smaller number of substitutes per target, used a single substitute for a smaller number of targets, and exhibited dissimilar substitution patterns compared to their peers with phonological disorders. Some specific substitutions types were different than those reported for English-speaking children, indicating a language-specific pattern. These results have implications for the identification of Spanish-speaking children with phonological disorders and the cross-linguistic and language-specific nature of substitution errors.
Parity-Check Density Versus Performance of Binary Linear Block Codes: New Bounds and Applications

The moderate complexity of low-density parity-check (LDPC) codes under iterative decoding is attributed to the sparseness of their parity-check matrices. It is therefore of interest to consider how sparse parity-check matrices of binary linear block codes can be a function of the gap between their achievable rates and the channel capacity. This issue was addressed by Sason and Urbanke, and it is revisited in this paper. The remarkable performance of LDPC codes under practical and suboptimal decoding algorithms motivates the assessment of the inherent loss in performance which is attributed to the structure of the code or ensemble under maximum-likelihood (ML) decoding, and the additional loss which is imposed by the suboptimality of the decoder. These issues are addressed by obtaining upper bounds on the achievable rates of binary linear block codes, and lower bounds on the asymptotic density of their parity-check matrices as a function of the gap between their achievable rates and the channel capacity; these bounds are valid under ML decoding, and hence, they are valid for any suboptimal decoding algorithm. The new bounds improve on previously reported results by Burshtein and by Sason and Urbanke, and they hold for the case where the transmission takes place over an arbitrary memoryless binary-input output-symmetric (MBIOS) channel. The significance of these information-theoretic bounds is in assessing the tradeoff between the asymptotic performance of LDPC codes and their decoding complexity (per iteration) under message-passing decoding. They are also helpful in studying the potential achievable rates of ensembles of LDPC codes under optimal decoding; by comparing these thresholds with those calculated by the density evolution technique, one obtains a measure for the asymptotic suboptimality of iterative decoding algorithms
Social Integration of the San Society from the Viewpoint of Sexual Relationships

The Central Kalahari San. living in the central part of Botswana, practice divorce and remarriage frequently. r-. lost people have experienced marriage more than twice in their lives. The rate of polygamous marriage is rather high, and moreover, a kind of love­ relationship called zaku, which is usually recognized openly, is widely seen in this society. Four examples of social clusters united by marriage and other sexual relationships are here examined and analyzed 10 see how those sexual relationships affecI inter-personal relations and residential grouping. This is done in order to clarify an aspect of the principle of San social integration.
Serum Ultrafiltrable Copper, Total Copper and Caeruloplasmin Concentrations in Gynaecological Carcinomas

Serum copper and caeruloplasmin concentrations are elevated in various carcinomas, but it is not known whether the rise in serum copper is due to elevation of caeruloplasmin alone or whether it is also due to the elevation of ‘free’ copper. We therefore determined ultrafiltrable copper to answer this question. Serum ultrafiltrate was prepared using the Amicon micropartition system and ultrafiltrable (free) copper was determined by flameless atomic absorption spectrophotometry. Serum total copper was determined by flame atomic absorption spectrometry and caeruloplasmin by rate nephelometry. There was no significant difference in the ultrafiltrable copper concentration between patients with gynaecological tumours and control subjects. However, total copper and caeruloplasmin concentrations were significantly elevated in cancer patients compared with control subjects. In contrast to total copper and caeruloplasmin concentrations, ultrafiltrable copper concentrations showed no significant increase with increase in the stage of the cancer.