Miracle-dz/UniFAR-FTUs huggingface dataset:
Investigation of Vortex Dynamics in Bi-2212 Superconductor Using Third Harmonic Ac Magnetic Susceptibility Superposing High Dc Magnetic Field

We have investigated the vortex dynamics of high quality single phase polycrystalline Bi2Sr2Ca1Cu2O8+δ (Bi-2212) high Tc superconductor using dc magnetization and ac magnetic susceptibility measurements up to magnetic field of 45 kOe. We have mainly used third harmonic signal (χ3) in the ac susceptibility technique to analyze the vortex dynamics in the sample since third harmonic signal gives nonlinear magnetization and can be measured in zero dc magnetic field. High quality single phase samples with superconducting transition temperature (Tc) 70 K have been prepared by standard solid state reaction method. We have shown that the inter-grain characteristics affect the magnetic property efficiently inside a superconductor in high dc magnetic field. Isothermal field dependent magnetization shows reversible behavior at temperatures close to the Tc. A sudden rise in χ3 has been observed at low temperature when the applied superimposed dc magnetic field is of 6.0 kOe or above. The low temperature state seems to be re-established again at very high magnetic field and observe an unusual vortex dynamics in Bi-2212 superconductors. Destruction of coherence or unusual vortex motion through the grain boundary may be the possible reason for this observed unusual behavior.
Ortopedi Ameliyatlarında Cerrahi Sahanın Örtülmesinde Steril Poşet Kullanımının Enfeksiyon Açısından Etkinliği

Amac: Cerrahi alan enfeksiyonlari (CAE) hastalar ve hekimler icin tedavi sureci zorlu durumlardir. Bu riski azaltmak icin bircok tedbir alinmasina ragmen maalesef CAE gorulmeye devam etmektedir. CAE’larinin en onemli kaynaklarindan birinin hastanin kendi florasi oldugu bilinmektedir. Ameliyatlarda steril ortulerin hemen altinda hastanin kendi florasi ile kontamine olan masa bulunmaktadir. Bu calismada ameliyat sartlarina benzer sartlar olusturularak steril yesil ortulerin altinda steril poset kullaniminin cerrahi alanda enfeksiyon gorulmesi uzerine etkinliginin olup olmadigi arastirildi. Gerec ve yontem: Bunun icin ameliyathane sartlarinda, tam kan kullanilarak 3 ayri grupta toplam 18 adet cerrahi alana benzer ortam olusturuldu. Her ameliyathane masasi saglikli bir bireyin onkol florasi ile kontamine edildi. Tum masalarda ustuste 3 adet tekrar kullanilabilen steril yesil ortu serildi. Gruplar arasindaki tek fark, tekrar kullanilabilen steril yesil ortulerin altina bir grupta hic poset serilmemesi, bir grupta nonsteril poset serilmesi ve bir grupta da steril poset serilmesi idi. Bu nedenle gruplar poset serilmeyen grup, steril olmayan poset serilen grup ve steril poset serilen grup olarak isimlendirildi. Ayrica steril yesil poset kullaniminin maliyeti de hesaplandi. Enfeksiyon gelisme ihtimali The Fischer Exact propability test ile degerlendirildi. Bulgular: Steril poset kullaniminin istatistiki olarak enfeksiyon gelisme ihtimalini azalttigi tespit edildi. Steril poset kullanim maliyeti calisma yapildiginda yaklasik olarak 2,5 tl (0,8 $) idi. Enfeksiyon gelisme olasiligi steril poset grubunda istatistiksel olarak anlamli derecede dusuktu. Sonuc: Sonuc olarak ekstremite antisepsisini takiben steril yesil ortulerin serilmesi oncesinde steril poset serilmesinin enfeksiyon gelisme ihtimalini azaltacagini dusunmekteyiz.
The Small-Slope Approximation Method Applied to a Three-Dimensional Slab with Rough Boundaries

In this paper we present new results on the small-slope approximation method. We consider different three-dimensional structures like a randomly rough surface separating two different media and a slab delimited by one or two rough surfaces. We extend the small-slope approximation to the fourth order terms of the perturbative development, and give the expression of the cross-sections for the different polarization states. Numerical examples are treated for the studied structures and a comparison with the small-perturbation is discussed.
Oestrogen receptor α and β mRNA expression in human endometrium throughout the menstrual cycle

We examined the localization of oestrogen receptor (ER) b mRNA in the human endometrium throughout the menstrual cycle using non-radioactive in-situ hybridization with Brigati-tailed oligonucleotides. The findings were compared with those of ERa in order to examine the possible biological significance of ERb in the human endometrium. Both ERa and ERb mRNA expression were detected in all major human uterine cell types, including glandular epithelial cells, stromal cells and smooth muscle cells of the uterine wall, at every menstrual cycle stage. However, ERa mRNA expression was more prominent than that of ERb in all cell types throughout the menstrual cycle. In proliferative phase endometrium, ERa mRNA was expressed in both glandular epithelial and stromal cells, while ERb mRNA was expressed predominantly in glandular epithelial cells. Although the same pattern was observed in the secretory phase, both the ERa and ERb mRNA expression was relatively weaker. These results suggest that oestrogenic effects occur predominantly through ERa, but that ERb may also play a role in the modulation of oestrogenic action, especially on glandular epithelial cells in the human endometrium throughout the menstrual cycle.
Dorsal spinal cord inhibits oligodendrocyte development.

Oligodendrocytes are the myelinating cells of the mammalian central nervous system. In the mouse spinal cord, oligodendrocytes are generated from strictly restricted regions of the ventral ventricular zone. To investigate how they originate from these specific regions, we used an explant culture system of the E12 mouse cervical spinal cord and hindbrain. In this culture system O4(+) cells were first detected along the ventral midline of the explant and were subsequently expanded to the dorsal region similar to in vivo. When we cultured the ventral and dorsal spinal cords separately, a robust increase in the number of O4(+) cells was observed in the ventral fragment. The number of both progenitor cells and mature cells also increased in the ventral fragment. This phenomenon suggests the presence of inhibitory factor for oligodendrocyte development from dorsal spinal cord. BMP4, a strong candidate for this factor that is secreted from the dorsal spinal cord, did not affect oligodendrocyte development. Previous studies demonstrated that signals from the notochord and ventral spinal cord, such as sonic hedgehog and neuregulin, promote the ventral region-specific development of oligodendrocytes. Our present study demonstrates that the dorsal spinal cord negatively regulates oligodendrocyte development.
Achieving sustainable livelihood through solid waste management in Dhaka City

Solid waste management (SWM) has become an enormous burden for the governments of developing countries. SWM is a partiularly crucial problem in theDhaka, the capital city of Bangladesh. The Dhaka City Corporation (DCC) is the only formal organisation responsible for waste management. It estimates that up to 2% of the population of developing countries survive through informal waste-recovery activities. Thus, this study is aimed to assess the sustainable livelihood through SWM among the waste workers in Dhaka. This study collects primary data through a questionnaire survey on 436 poor waste workers living in the Dhaka city of Bangladesh. The samples are selected from the landfill, commercial and residential area based on the stratified random sampling technique. This study shows that the analysis of structural equation modelling achieves the required level of validity, reliability and fitness where the values of Cronbach’s alpha (œ) > 0.7; Construct Reliability (CR) > 0.6 ; Average Variance Extracted (AVE) > 0.5 ; Chisquare, Comparative Fit Index (CFI) and Tucker –Lewis Index (TFI) > 0.90; Root Mean Square of Error Approximation (RMSEA) < 0.08 and chi Square /Degree of Freedom (Chisq/df) < 5 . The three latent exogenous constructs namely source separation, health hazards, and sustainable livelihood are significant variables to achieve sustainable livelihood vis-à-vis poverty reduction. Using the econometric model, the study focused on the health awareness, welfare, income generation, employment opportunities of waste workers .
The Regret and Disappointment Scale: An instrument for assessing regret and disappointment in decision making

The present article investigates the effectiveness of methods traditionally used to distinguish between the emotions of regret and disappointment and presents a new method — the Regret and Disappointment Scale (RDS) — for assessing the two emotions in decision making research. The validity of the RDS was tested in three studies. Study 1 used two scenarios, one prototypical of regret and the other of disappointment, to test and compare traditional methods (“How much regret do you feel” and “How much disappointment do you feel”) with the RDS. Results showed that only the RDS clearly differentiated between the constructs of regret and disappointment. Study 2 confirmed the validity of the RDS in a real-life scenario, in which both feelings of regret and disappointment could be experienced. Study 2 also demonstrated that the RDS can discriminate between regret and disappointment with results similar to those obtained by using a context-specific scale. Study 3 showed the advantages of the RDS over the traditional methods in gambling situations commonly used in decision making research, and provided evidence for the convergent validity of the RDS.
Performing perception—staging aesthetics of interaction

In interaction design for experience-oriented uses of technology, a central facet of aesthetics of interaction is rooted in the user's experience of herself “performing her perception. ” By drawing on performance (theater) theory, phenomenology and sociology and with references to recent HCI-work on the relation between the system and the performer/user and the spectator's relation to this dynamic, we show how the user is simultaneously operator, performer and spectator when interacting. By engaging with the system, she continuously acts out these three roles and her awareness of them is crucial in her experience. We argue that this 3-in-1 is always already shaping the user's understanding and perception of her interaction as it is staged through her experience of the object's form and expression. Through examples ranging from everyday technologies utilizing performances of interaction to spatial contemporary artworks, digital as well as analogue, we address the notion of the performative spectator and the spectating performer. We demonstrate how perception is also performative and how focus on this aspect seems to be crucial when designing experience-oriented products, systems and services.
Early Head Start Plus ABC 1 Improving Early Head Start ’ s Impacts on Parenting through Attachment-Based Intervention : A Randomized Controlled Trial

This randomized controlled trial tested an enhanced model of Early Head Start (EHS) that combined home-based EHS with Attachment and Biobehavioral Catch-up (ABC; Dozier & Bernard, 2017), a brief, evidence-based parenting intervention. The trial included 208 lowincome mothers (87% Latina) and their 6to 18-month-old infants. Control participants received home-based EHS plus 10 weekly books. Follow-up observations revealed positive impacts of the enhanced EHS plus ABC model on maternal sensitivity/responsiveness, intrusiveness, and positive regard (d’s = 0.23 – 0.77). Exploratory analyses of moderated effects suggested stronger impacts for those mothers who began the study with greater intrusiveness or who described their adult attachment style as secure or anxious. Findings are discussed in terms of implications for improving effects on parenting of publicly funded programs designed to support early development.
Neuroprotective effects of LY379268, a selective mGlu2/3 receptor agonist: investigations into possible mechanism of action in vivo.

The mechanisms underlying the neuroprotective effects of the group II metabotropic glutamate receptor (mGluR) agonist LY379268 were investigated in a gerbil model of global ischemia. LY379268 (10 mg/kg i.p.) 30 or 60 min after 5-min bilateral carotid artery occlusion (BCAO) attenuated the ischemia-induced hyperactivity and provided protection in the CA1 hippocampal cells. This neuroprotective effect was maintained (P <.001) when histological analysis was performed 14 and 28 days after BCAO. Furthermore, 24- or 48-h pretreatment with LY379268, 10 mg/kg i.p., before 5-min BCAO markedly reduced (P <.001 and P <.05, respectively) the damage to CA1 hippocampal neurons. This result is consistent with the induction of neuroprotective factors or a very long brain half-life. To study the possible induction of neuroprotective factors as contributing to this action of LY379268, brains were examined for expression of neurotrophic factors. Results indicated that LY379268 (10 mg/kg i.p.) failed to alter the expression of transforming growth factor-beta, brain-derived neurotrophic factor, nerve growth factor, and basic fibroblast growth factor in the hippocampal regions of brains taken from gerbils sacrificed at 6, 24, 72, and 120 h postinjection. The new group II mGlu antagonist, LY341495, administered 1 h before 5-min BCAO, attenuated the neuroprotective effect of LY379268 administered 24 h before 5-min BCAO. Complementary pharmacokinetic studies showed that a significant receptor-active concentration persisted in the brain 24 h after LY379268 10 mg/kg i.p. We conclude that group II mGluR occupancy, rather than induction of neuroprotective factors, explains the long-lasting neuroprotective effect of LY379268 in the gerbil model of global ischemia.
Measurement Decision Theory.

This paper describes and evaluates a decision theory measurement model that can be used to classify examinees based on their item response patterns. The model has a simple framework that starts with the conditional probabilities of examinees in each category or mastery state responding correctly to each item. An overview of measurement decision theory and its key concepts are presented and illustrated using a binary classification (pass/fail) test and a sample three-item test. The research presents an evaluation of the model by examining the: (1) classification accuracy of tests scored using measurement decision theory; (2) differential sequential testing procedures by comparing classification accuracy against that of the best case item response theory scenario; (3) the number of items needed to make a classification; and (4) the number of examinees needed to calibrate measurement decision theory item parameters satisfactorily. The research shows that a large percentage of examinees can be classified accurately with very few items and that surprisingly few examinees are needed for calibration.
Priority based congestion control for heterogeneous traffic in multipath wireless sensor networks

Congestion occurs when too many sources are sending too much of data for network to handle. Congestion in a wireless sensor network can cause missing packets, low energy efficiency and long delay. A sensor node may have multiple sensors like light, temperature etc., with different transmission characteristics. Each application has different characteristics and requirements in terms of transmission rate, bandwidth, delay, and packet loss. Different types of data generated in heterogeneous wireless sensor networks have different priorities. In multi path wireless sensor networks, the data flow is forwarded in multiple paths to the sink node. It is very important to achieve weighted fairness for many WSN applications. In this paper we propose a priority based congestion control for heterogeneous traffic in multi path wireless sensor network. The proposed protocol allocates bandwidth proportional to the priority of many applications simultaneously running in the sensor nodes. Each sensor node route is own data as well as the data generated from other senor nodes. The parent node of each sensor node allocates the bandwidth based on the source traffic priority and transit traffic priority of the data from heterogeneous applications in the child nodes. Congestion is detected based on the packet service ratio and congestion notification is implicit. The normalized throughput comparison for simple fairness and weighted fairness is shown in the results.
Using Tropical Forest Ecosystem Goods and Services for Planning Climate Change Adaptation with Implications for Food Security and Poverty Reduction

Tropical forest ecosystems represent a common heritage with livelihood portfolios shared by a great majority of people especially in developing countries but are now threatened by climate change. In spite of their contribution to poverty alleviation and food security, and also for climate change responses (adaptation and mitigation especially through the market-incentive schemes (CDM) of the Kyoto Protocol) forests are still hardly integrated into national planning processes aimed at addressing any of these national development challenges. This is evident in some of the national documents of some developing countries such as the Poverty Reduction Strategy Paper (PRSP) to the World Bank, and the First National Communication to UNFCCC. This paper presents some preliminary outcomes of the Tropical Forests and Climate Change Adaptation (TroFCCA) project of the Center for International Forestry Research (CIFOR) whose overall mission is to underscore the importance of tropical forests for livelihood adaptation to climate change and mainstreaming adaptation into national development processes. The paper also highlights TroFCCA’s approach in engaging stakeholders from the onset in setting the agenda with the identification and prioritization of forest-based sectors as the entry point in the process of assessing the vulnerability to climate change and developing adaptation strategies for these selected development sectors. This is a highly crucial area with great policy implications. Planning with ecosystem goods and services seems to emerge as a prospective approach to demonstrate to policymakers the potential of forest ecosystems for livelihood adaptation to climate change which also enhances the opportunity for achieving food security and community resilience to poverty. TroFCCA’s approach in engaging stakeholders at the onset in defining their perception of ecosystem goods and services by virtue of their importance to household livelihoods and their contribution to national development emphasizes the significance of a place-based context in the valuation of ecosystem goods and services. This
Noiseless Privacy for Some Classes of Dependent Data

In this paper we consider the problem of revealing aggregated sensitive data without adding noise. The aim is to reveal some statistics from a data set in a way that the privacy of individuals is preserved in terms of differential privacy. This problem has been solved for many systems by adding some noise to the aggregated data or individual values (in distributed systems with untrusted aggregator). However, such approach leads to errors (due to adding noise) which are sometimes unacceptable in real life scenarios. In 2011 Bhaskar at al. pointed out that in many cases one can ensure sufficient level of privacy without adding noise by utilizing adversarial uncertainty. Informally speaking, this observation comes from the fact that if at least a part of the data is randomized from the adversary's point of view, it can be effectively used for hiding other values. In our paper we extend this idea and present some results for wider class of data. In particular we cover the data sets that are dependent. Moreover, in contrast to most of previous papers in this field, we give detailed (non-asymptotic) results which is motivated by practical reasons. Note that it required a modified approach and more subtle tools.
Minimality in CR geometry and the CR Yamabe problem on CR manifolds with boundary

We study the minimality of an isometric immersion of a Riemannian manifold into a strictly pseudoconvex CR manifold endowed with the Webster metric hence formulate a version of the CR Yamabe problem for CR manifolds-with-boundary. This is shown to be a nonlinear subelliptic problem of variational origin.
HOW SMALL KIBS COMPANIES MANAGE THEIR INTELLECTUAL CAPITAL? TOWARDS AN EMERGENT KM APPROACH

The growing interest in Intellectual Capital management and Knowledge Management is now reaching small companies, especially those in the Knowledge-Intensive Business Services (KIBS) sector. This paper aims to explore this issue, starting from the assumption that a planned and systematic approach to KM, as is used in large companies, is rarely applicable in small organizations. It is more likely that small companies adopt an approach to KM that could be defined as “emergent”, i.e. KM is not planned rationally and in advance, but emerges and is developed along with time. In the paper, the concept of emergent KM approach will be defined and discussed, and three research questions will be examined: a. Is it possible to detect an emergent KM approach in the practice of small KIBS? b. If so, why small KIBS companies follow an emergent KM approach? c. What particular features this approach can have in those companies? The study is based on the results of a qualitative survey involving several owners and managers of small companies operating in the KIBS sector. The survey uses the case study method, and gives grounds for a preliminary analysis of emergent KM approach is small companies offering KIBS. The findings confirm that it is easy to find small companies adopting an emergent approach to KM: in the analysed cases there were no formal KM plans, despite the fact that they have all introduced various KM practices. This shows that there can be the need to define KM approaches that better fit smaller companies