Miracle-dz/UniFAR-FTUs huggingface dataset:
Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites.

The crystal and magnetic structures of SrLnFeRuO(6) (Ln = La, Pr, Nd) double perovskites have been investigated. All compounds crystallize with an orthorhombic Pbnm structure at room temperature. These materials show complete chemical disorder of Fe and Ru cations for all compounds. The distortion of the structure, relative to the ideal cubic perovskite, has been decomposed into distortion modes. It has been found that the primary modes of the distortion are octahedral tilting modes: R(4)(+) and M(3)(+). The crystal structure of SrPrFeRuO(6) has been studied from room temperature up to 1200 K by neutron powder diffraction. There is a structural phase transition from orthorhombic (space group Pbnm) to trigonal (space group R3c) at T = 1075 K. According to group theory no second-order transition is possible between these symmetries. Magnetic ordering for all the compounds is described by the magnetic propagation vector (0,0,0). SrPrFeRuO(6) shows ferrimagnetic order below ca 475 K, while SrLaFeRuO(6) (below ca 450 K) and SrNdFeRuO(6) (below ca 430 K) exhibit canted-antiferromagnetic order. The magnetic moments at low temperatures are m(Fe/Ru) = 1.88 (3)μ(B) for SrLaFeRuO(6) (2 K), m(Pr) = 0.46 (4)μ(B) and m(Fe/Ru) = 2. 24μ(B) for SrPrFeRuO(6) (2 K), and m(Fe/Ru) = 1. 92μ(B) for SrNdFeRuO(6) (10 K).
Altered microRNA profiles during early colon adenoma progression in a porcine model of familial adenomatous polyposis

MicroRNAs are dysregulated in various cancers including colorectal cancer, and are potential useful biomarkers of disease development. We used next generation sequencing to investigate miRNA expression profiles in low- and high-grade intraepithelial dysplastic polyps from pigs carrying a mutation in the adenomatous polyposis coli tumour suppressor (APC1311, orthologous to human APC1309) that model an inherited predisposition to colorectal cancer, familial adenomatous polyposis. We identified several miRNAs and their isomiRs significantly (P < 0.05) differentially expressed between low and high-grade intraepithelial dysplastic polyps. Of these, ssc-let-7e, ssc-miR-98, ssc-miR-146a-5p, ssc-miR-146b, ssc-miR-183 and ssc-miR-196a were expressed at higher level and ssc-miR-126-3p at lower level in high-grade intraepithelial dysplastic polyps. Functional miRNA target analysis revealed significant (P < 0.001) over-representation of cancer-related pathways, including ‘microRNAs in cancer’, ‘proteoglycans in cancer’, ’pathways in cancer’ and ‘colorectal cancer’. This is the first study to reveal miRNAs associated with premalignant transformation of colon polyps.
A Quad-Band Compact Diversity Antenna for GPS L1/Wi-Fi/LTE2500/WiMAX/HIPERLAN1 Applications

In this letter, a low-profile quad-band antenna array for multiple-input-multiple-output (MIMO) application has been presented. The proposed two-antenna array operates at GPS L1/Bluetooth/Wi-Fi/LTE2500/WiMAX/HIPERLAN1 frequency bands. Each antenna element has an area of 25×10 mm2 over a small ground plane of the size 100×60 mm2. To maintain the small size of the antenna element, folded patch is used. A rectangular slot is etched on the main radiator to utilize the higher-order mode. A quarter-wavelength resonator is integrated at the edge of folded patch to get an additional resonance for quad-band operation. An antenna prototype is fabricated, and measured results are in good agreement with simulated results. Radiation characteristics and diversity performance of the proposed structure are presented.
Cyber Security: A Crisis of Prioritization

Abstract : The information technology (IT) infrastructure of the United States, which is now vital for communication, commerce, and control of our physical infrastructure, is highly vulnerable to terrorist and criminal attacks. The private sector has an important role in securing the Nation's IT infrastructure by deploying sound security products and adopting good security practices. But the Federal government also has a key role to play by supporting the discovery and development of cyber security technologies that underpin these products and practices. The PITAC finds that the Federal government needs to fundamentally improve its approach to cyber security to fulfill its responsibilities in this regard. PITAC urges changes in the Federal government's cyber security R&D portfolio to: * Increase Federal support for fundamental research in civilian cyber security by $90 million annually at NSF and by substantial amounts at agencies such as DARPA and DHS to support work in 10 high-priority areas identified by PITAC. * Intensify Federal efforts to promote recruitment and retention of cyber security researchers and students at research universities, with an aim of doubling this profession's numbers by the end of the decade. * Provide increased support for the rapid transfer of Federally developed cutting-edge cyber security technologies to the private sector. * Strengthen the coordination of the Interagency Working Group on Critical Information Infrastructure Protection and integrate it under the Networking and Information Technology Research and Development (NITRD) Program. These actions will lead the way toward improving the Nation s cyber security, thereby promoting the security and prosperity of our citizens.
When is Equity More than Just Financing? Evidence from Strategic Alliances

A strategic alliance is a hybrid organizational form that is between an arms length contract and a full-fledged merger between firms. In some alliances firms take a minority equity stake in the partner firm. We refer to these as equity alliances. Using data on 759 alliances, we examine the motivation for the use of equity in alliances. We study whether equity is intended to strengthen the contractual performance of the alliance or whether it is primarily a means of financing for the capital constrained partner in the alliance. Consistent with the incomplete contracts theory, we find that equity is more likely to be used in alliances where the exact nature and the sharing of the output is ambiguous. We also find that equity is more likely to be used when the difference in bargaining powers between the partners is higher, such as when the partners differ significantly in size, market power, and growth opportunities. Finally, we find that equity alliances are especially likely when the smaller partner (which is almost always the partner selling equity) is high growth but is capital constrained. Thus, equity from alliance partners is a viable alternative source of capital for such firms. Consistent with the view that equity usage mitigates contracting costs and capital constraints, the market reaction to equity alliances is significantly higher compared to other alliances. Overall, the evidence suggests that the market views equity investments in alliances as more valuable than toeholds taken by potential acquirers without a product market relationship.
Gain Enhancement of a V-Band Antenna Using a Fabry-Pérot Cavity With a Self-Sustained All-Metal Cap With FSS

Gain enhancement of a V-band planar antenna in the form of a low-profile Fabry-Pérot cavity (FPC) is proposed. This simple design is based on placing a perforated metallic cap, forming a frequency-selective-surface (FSS), over a printed-circuit-board (PCB). An integrated slot-dipole antenna is etched in a thin layer of copper (the ground plane) printed on the other side of the PCB. The metallic cap is self-sustained with surrounded metallic sidewalls. Besides showing the simplicity of such design, we also provide a novel comprehensive analysis using a transmission-line model of a FPC along with the two-port circuit model of the thick FSS. The leaky-wave interpretation for the cavity radiation is also addressed to estimate the effective radiation area and therefore the size of the cap. It will be shown that placing the cap on top of the PCB, besides enhancing the directivity of the feeding-slot reduces its backward radiation. A FPC prototype operating in the 60 GHz wireless band, is fabricated and measured showing good agreement between the simulated and measured results.
FimZ Is a Molecular Link between Sticking and Swimming in Salmonella enterica Serovar Typhimurium

ABSTRACT Salmonella enterica serovar Typhimurium produces two types of filamentous appendages on its surface. Fimbriae mediate adherence to tissues and cells via receptor-specific interactions, and flagella are the organelles of motility. These appendages play a role in colonization and dissemination, respectively, from infected surfaces and may be important components of bacterial survival. Increased expression of FimZ in serovar Typhimurium resulted in bacteria which were hyperfimbriated but were nonmotile in soft agar. This lack of motility was associated with down regulation of the flhDC master flagellar operon. Therefore, FimZ represents a molecular connection between flagella and fimbrial formation in serovar Typhimurium, indicating that the synthesis of flagella and fimbriae are oppositely controlled.
Calretinin immunoreactivity in the brain of the zebrafish, Danio rerio: Distribution and comparison with some neuropeptides and neurotransmitter‐synthesizing enzymes. I. Olfactory organ and forebrain

The distribution of calretinin (CR) in the forebrain and the olfactory system of the adult zebrafish was studied by using immunocytochemical techniques. Previous studies in trout forebrain have indicated that CR‐immunoreactive neurons acquire this phenotype rather early in development (Castro et al., J. Comp. Neurol. 467:254–269, 2003 ). Thus, precise knowledge of CR‐expressing neuronal populations in adult zebrafish may help to decipher late stages of forebrain morphogenesis. For analysis of some forebrain nuclei and regions, CR distribution was compared with that of various ancillary markers: choline acetyltransferase, glutamic acid decarboxylase, tyrosine hydroxylase, neuropeptide Y, thyrotropin‐releasing hormone, and galanin. The results reveal that calretinin is a specific marker of olfactory receptor neurons and of various neuronal populations distributed throughout the telencephalon and diencephalon. In addition, CR immunocytochemistry revealed characteristic patterns of fibers and neuropil in several telencephalic and diencephalic regions, indicating that it is a useful marker for characterizing a number of neural centers, pathways, and neuronal subpopulations in the zebrafish forebrain. Some ancillary markers also showed a distinctive distribution in pallial and subpallial regions, revealing additional aspects of forebrain organization. Comparison of the distribution of CR observed in the forebrain of zebrafish with that reported in other teleosts revealed a number of similarities and also some interesting differences. This indicates that various neuronal populations have maintained the CR phenotype in widely divergent teleost lines and suggests that CR studies may prove very useful for comparative analysis. J. Comp. Neurol. 494:435–459, 2006. © 2005 Wiley‐Liss, Inc.
High-pass filter characteristic of Bloch impedance in a left-handed transmission line

This paper shows the high-pass filter characteristic of a left-handed transmission line structure modeled through the Bloch impedance approach using ABCD matrix formulation and Bloch-Floquet theorem. The artificial left-handed transmission line model is carried out and then the Bloch impedance is calculated. Finally, numerical results for lossless left-handed transmission line are presented and discussed.
Female sexual victimization predicts psychosis: a case-control study based on the Danish Registry System.

OBJECTIVE An increasing research literature has identified a statistical association between trauma exposure and psychosis. Methodological limitations, primarily relating to failures to establish the temporal ordering of events and relying on retrospective self-reports, have made the argument for a causal association difficult to establish. METHOD A case-control study was conducted based on data from the Danish Civil Registration System and the Danish Psychiatric Central Register. All female visitors to a rape center during the index year (2003) were matched with controls based on age and area of residence. Information on previous and subsequent diagnoses of psychosis was extracted from the registers for cases and controls. RESULTS A hierarchical binary logistic regression was used with demographic variables, preindex psychosis, and rape center attendance as predictor variables, and the dependent variable was a postindex year diagnosis of psychosis. The OR associated with sexual victimization (OR = 10.04; 95% CI 2.50-40.33) indicted an increased likelihood of psychosis while controlling for the other predictors in the model. CONCLUSIONS This study found that sexual victimization significantly increased the likelihood of a diagnosis of psychosis and therefore suggests that there may be a role for traumatic experiences in the etiology of psychosis.
Business to Business Marketing: Analysis and Practice in a Dynamic Environment

1. Introduction to Business to Business Marketing. 2. Classifying Customers, Organizations, and Markets. 3. Organizational Buying and Buyer Behavior. 4. The Legal and Political Environment. 5. Concepts and Context Of Business Strategy. 6. Assessing and Forecasting Markets. 7. Segmenting, Targeting and Positioning. 8. Planning and Positioning The Value Offering. 9. Innovation and Competitiveness. 10. Pricing Policies. 11. Business-To-Business Selling. 12. Channel Relationships. 13. Communicating With The Market. 14. Business Ethics and Crisis Management.
Placing the networks on the Web : challenges and opportunities for managing in developing Asia

Placing the networks on the Web poses a fundamental challenge, but also provides new opportunities for managing in Developing Asia. There is a huge efficiency gap between the region's manufacturing systems and the management of complementary, knowledge-intensive support services. The challenge is to reduce this gap as quickly as possible by embracing the Internet as a core business function, despite a weak base of accumulated knowledge of how to manage IT-based information systems. Asian companies, even the best, lag substantially behind their American and European counterparts. There is a potential vicious circle that needs to be broken: a belated transition to IT-based information systems has prevented the accumulation of knowledge, through trial-and-error, of how to design and implement an appropriate IT organization that reflects the peculiar strengths and weaknesses of diverse Asian management systems. Limited resources prevent any attempt to address these problems in a big leap forward. This implies that in-house efforts need to be supplemented with outsourcing of IT services. There is also a need for strategic partnering with major suppliers of Internet software and networking equipment. The opportunity is that the Internet provides almost unlimited opportunities for the outsourcing of mission-critical support services, such as ERP (enterprise resource planning), HRM (human resource management). Furthermore, fierce competition among major producers of Internet software and networking equipment has created a buyers' market - placing Asian firms in a reasonably strong bargaining position. These developments are generally not well covered by existing studies, which are primarily focused on developments in the U.S. and Europe. The paper tries to fill this gap, and explores how placing global production networks on the Web affects managing in Developing Asia. A conceptual framework is introduced in parts 1 to 3. That framework is then applied to one of the role models of managing in Asia, Taiwan's Acer Group. Part 1 introduces a taxonomy of expected benefits from Internet-enabled transformations of business organization. In part 2, we argue that the real issue is to analyze how the Internet reshapes the organization of global production networks. In part3, we access conflicting claims on how an increased use of the Internet to manage global production networks affects international knowledge diffusion. In part 4, the example of Taiwan's Acer Group is used to describe the challenge for Asian firms to embrace the Internet as a key management function. And in part 5, we ask what Acer's experience tells us about Developing Asia's opportunities.
Specific Interaction between SNAREs and Epsin N-terminal Homology (ENTH) Domains of Epsin-related Proteins in trans-Golgi Network to Endosome Transport*

SNARE proteins on transport vesicles and target membranes have important roles in vesicle targeting and fusion. Therefore, localization and activity of SNAREs have to be tightly controlled. Regulatory proteins bind to N-terminal domains of some SNAREs. vti1b is a mammalian SNARE that functions in late endosomal fusion. To investigate the role of the N terminus of vti1b we performed a yeast two-hybrid screen. The N terminus of vti1b interacted specifically with the epsin N-terminal homology (ENTH) domain of enthoprotin/CLINT/epsinR. The interaction was confirmed using in vitro binding assays. This complex formation between a SNARE and an ENTH domain was conserved between mammals and yeast. Yeast Vti1p interacted with the ENTH domain of Ent3p. ENTH proteins are involved in the formation of clathrin-coated vesicles. Both epsinR and Ent3p bind adaptor proteins at the trans-Golgi network. Vti1p is required for multiple transport steps in the endosomal system. Genetic interactions between VTI1 and ENT3 were investigated. Synthetic defects suggested that Vti1p and Ent3p cooperate in transport from the trans-Golgi network to the prevacuolar endosome. Our experiments identified the first cytoplasmic protein binding to specific ENTH domains. These results point toward a novel function of the ENTH domain and a connection between proteins that function either in vesicle formation or in vesicle fusion.
Non-Technological and Mixed Modes of Innovation in the United States: Evidence from the Business Research and Development Innovation Survey, 2008-2011

This paper presents a novel empirical study of innovation practices of U.S. companies and their relation to productivity levels using new business micro data from the Business Research and Development and Innovation Survey (BRDIS) for the years 2008-2011. We use factor analysis to reduce a set of inputs and outputs of innovation activities into four latent unobserved innovation modes or practices. Companies are grouped according to their scores across the four factors to see that in large, small and medium companies more than one mode of innovation practices prevails. The next step in the analysis links different types of innovation practices to levels of productivity using regression analysis. The innovation modes have a statistically significant positive relation with the level of productivity. The paper demonstrates the possibility of taking into account the multidimensionality of innovation without the use of composite indicators.
Simultaneous B0‐ and B1+‐Map acquisition for fast localized shim, frequency, and RF power determination in the heart at 3 T

High‐field (≥3 T) cardiac MRI is challenged by inhomogeneities of both the static magnetic field (B0) and the transmit radiofrequency field (B1+). The inhomogeneous B fields not only demand improved shimming methods but also impede the correct determination of the zero‐order terms, i.e., the local resonance frequency f0 and the radiofrequency power to generate the intended local B1+ field. In this work, dual echo time B0‐map and dual flip angle B1+‐map acquisition methods are combined to acquire multislice B0‐ and B1+‐maps simultaneously covering the entire heart in a single breath hold of 18 heartbeats. A previously proposed excitation pulse shape dependent slice profile correction is tested and applied to reduce systematic errors of the multislice B1+‐map. Localized higher‐order shim correction values including the zero‐order terms for frequency f0 and radiofrequency power can be determined based on the acquired B0‐ and B1+‐maps. This method has been tested in 7 healthy adult human subjects at 3 T and improved the B0 field homogeneity (standard deviation) from 60 Hz to 35 Hz and the average B1+ field from 77% to 100% of the desired B1+ field when compared to more commonly used preparation methods. Magn Reson Med, 2010. © 2010 Wiley‐Liss, Inc.
Attribute based Access for Content Sharing Networks in Cloud

— Content sharing or Information sharing networks are very dynamic in nature in terms of number of users, storage space required, network bandwidth, platform, applications required by users etc. It is not easy for traditional client server model to allocate resources for such networks efficiently. Cloud computing is best suited to be used in such scalable networks than traditional client server model. Cloud storage is one of the fastest growing areas under cloud services. Yet people hesitate to get into cloud, because of security reasons. Unless dealt with security issues properly, we cannot utilize the best of cloud storage. In this paper, we propose an access control mechanism for sharing scalable media, based on data consumers’ attributes (e.g., age, job, nationality, designation, or gender) rather than an explicit list of the data consumers’ names, called Ciphertext policy attribute based encryption. CP-ABE is efficient and flexible because it allows the owner of the content, to specify the access policy. Only the user who possesses attributes specified in the policy, can decrypt the ciphertext. It works like one to many public key encryption, which means encryption need not be performed for individual users. Also flexibility is given, so that a user who do not possess required attributes can raise request for the data(under emergency conditions) and owner can take decision to give or take away the access whenever he wants. Owner will receive the notifications about such requests through email.
1 EFFECT OF USING DIFFERENT ANTIFOAMS ON TOXIN PRODUCTION OF CLOSTRIDIUM PERFRINGENS TYPE A .

In this study, three types of anti-foaming agent (Polyethylene glycol, simethicone, and charcoal) were used in the process of preparation of C. perfringens type A toxoid. It was found that simethicone and polyethylene glycol when added to toxin producing medium gave a high yield of alpha toxin (α toxin) of C. perfringens type A (120, and 90 Minimum Lethal Dose (MLD) respectively) in comparison to that of medium without anti-foaming agent, which gave alpha toxin with 60 MLD. Medium with added charcoal gave least amount of α toxin (30 MLD). Two formula of C. perfringens type A vaccines were prepared with Simethicone and polyethylene glycol as anti-foams, and the third one was prepared without anti-foam as control one. Testing of these vaccines in rabbits revealed that simethicone as antifoam in toxin producing medium of C. perfringens type A produced high level of toxin production and reduced the dose of vaccine used
Why are Firms that Export Cleaner? International Trade and CO2 Emissions

This paper develops a model of trade and CO2 emissions with heterogenous firms, where firms make abatement investments and thereby have an impact on their level of emissions. The model shows that investments in abatements are positively related to firm productivity and firm exports. Emission intensity is, however, negatively related to firms. productivity and exports. The basic reason for these results is that a larger production scale supports more investments in abatement and, in turn, lower emissions per output. We show that the overall effect of trade is to reduce emissions. Trade weeds out some of the least productive and dirtiest firms thereby shifting production away from relatively dirty low productive local firms to more productive and cleaner exporters. The overall effect of trade is therefore to reduce emissions. We test empirical implications of the model using unique Swedish firm-level data. The empirical results support our model.