Miracle-dz/UniFAR-FTUs huggingface dataset:
Donor Levels in Si-Doped AlGaAs Grown by MBE

Donor levels of MBE-grown Si-doped AlxGa1-xAs have been characterized by a combination of the C-V method and capacitance and current transient spectroscopy. Although most electrons are supplied by so-called DX centers in the AlAs mole fraction (x) range of 0.3∼0.7 in this material, it is found that a small amount of shallow donors are still present. The concentrations of the DX center and the shallow donor are determined in detail as a function of AlAs mole fraction and Si doping level. The activation energy obtained by the Hall effect measurement is discussed in association with these data.
Oxidation of hydrogen and carbon monoxide in sub- and supercritical water: reaction kinetics, pathways, and water-density effects. 2. Elementary reaction modeling

An existing, validated elementary reaction model for hydrogen oxidation in supercritical water, with theoretically consistent modifications for high pressure, was expanded to allow modeling of carbon monoxide oxidation. The carbon monoxide model was less successful, exhibiting a higher overall activation energy than the data and lacking an oxygen dependence. Data for fuel-rich CO oxidation, including hydrogen formation, were well predicted, but results for fuel-lean conditions were not correctly predicted. Both models, when extended to subcritical conditions, successfully reproduced the majority of the experimentally observed pressure (water-density) dependence
Adventures in Solitude: The Link Between Social Isolation and Violent Extremism

Domestic extremists pose a serious threat to the United States, with recent research suggesting that America is experiencing an upswing in radicalization. The present research explores an important motivational mechanism through which people could become an extremist: social isolation. When socially isolated from others, people are deprived of the certainty of normative structure, the fundamental need to belong, and meaningful social connection. In order to investigate the relationship between social isolation and extremism, we ran two cross-sectional studies with a student population (Study 1; N = 269) and a sample of U.S. residents (Study 2; N = 391). Results from Study 1 suggest that extremism is highest in individuals who spend more time alone and have a smaller social network. Additionally, this relationship is mediated by loneliness. Results from Study 2 suggest that greater loneliness, need to belong, and norm deviation is associated with greater extremism. Additionally, replicating the finding of the first study, the link between social isolation (operationalized as greater time spent alone and smaller social network) and extremism is mediated by loneliness. This research has important implications for understanding motivations that drive extremism and for countering violent extremism. The results of these studies are especially pertinent because people are more isolated now than ever before.
Genetic Characterization of Grape Cultivars from Apulia (Southern Italy) and Synonymies in Other Mediterranean Regions

Forty-five grape accessions, traditional and historically mentioned in Apulia (southeastern Italy), were genotyped at 13 microsatellite (SSR) markers and observed for their morphological features with the aim of characterizing and identifying the local grape diversity relevant for economic or historical significance and for endangered germplasm conservation. Twelve of the 45 accessions examined were found to be synonyms or somatic mutants, leaving 33 distinct genotypes. Attempts were then made to verify the true identities of the accessions investigated and to determine their appropriate denominations. This entailed comparing them with published allelic profiles and morphological features of cultivars from Apulia and from surrounding areas linked historically to the region. While confirming the identity of the major Apulian cultivars, further matches with varieties from other Mediterranean regions were revealed. Approximately half of the Apulian cultivars investigated were found to have a foreign counterpart mainly along the Adriatic Sea (Croatia), in Greece, or in other southern Italian regions. The new synonymies found with cultivars traditional to other areas shed light on the migration of cultivars following the settlement of colonies and the historical establishment of Mediterranean trade routes.
THE IMPACT OF INNOVATION LEADERSHIP ON ORGANIZATIONAL PERFORMANCE: MEDIATED ROLE OF ORGANIZATIONAL AMBIDEXTERITY

The major objective of this paper is to develop & test an integrated model of organizational ambidexterity, providing solutions to achieve the maximum performance outcomes. This research describes the mediating role of organizational ambidexterity with innovation leadership for achieving enhanced performances in an organization. Prior research has acknowledged that innovation leadership influence the organizational performance, little is known whether and how organizational ambidexterity affects the innovation leadership that contributes the organizational performance. The sample of private & government sectors employees were selected to test out theoretical model. Total 160 questionnaires were distributed & we received the response from 150 different organizations providing the data necessary of analysis of our integrated model. The results of the study show the novel findings & sufficient support for greater part of the hypotheses. It shows that innovation leadership is positively related to organizational performances exhibiting the direct effect. It also shows that innovation leadership is also positively related with organizational ambidexterity. It has been analyzed & found that organizational ambidexterity plays & important part for maximizing organizational performances. The mediating role of organizational ambidexterity also provides us unique, novel & diverse readings indicating a large amount of change due to mediation process. Generally the development of integrated model of organizational ambidexterity was supported both theoretically & statistically.
Inverted Schottky quantum dot solar cells with enhanced carrier extraction and air-stability

We introduce a novel colloidal quantum dot solar cell (CQD SC) architecture, defined as inverted Schottky CQD SCs, which consists of a thin film of PbS CQDs sandwiched between a low-work-function, transparent conducting oxide (Lϕ-TCO) and a high-work-function metal anode. On Lϕ-TCO substrates, which were generated by coating a thin layer of polyethylenimine (PEI) onto FTO, a series of inverted Schottky CQD SCs with varied PbS CQD sizes and QD layer thicknesses were fabricated and characterized using capacitance–voltage (C–V), current–voltage (J–V), and external quantum efficiency (EQE). A Schottky junction, of about 180 nm in width, was formed at the front TCO contact, resulting in an EQE of approximately 70% in the short-wavelength region. The champion device reached 3.8% AM1.5 in power conversion efficiency, and retained efficiency over several weeks of air-exposure. A record open-circuit voltage (VOC) of 0.75 V was achieved by employing PbS CQDs of 1.56 eV in the bandgap. Advantages including the simple device structure, efficient carrier extraction, and air-stability demonstrated in this study suggest that inverted Schottky CQD SCs can reduce the price per Watt ratio and facilitate the development of CQD tandem solar cells.
Socio-technical Requirements for Expert Users to Design Structured User-Interfaces for OpenEHR-based Electronic Health Records

—The paper addresses socio-technical challenges when expert users design structured user interfaces in openEHR-based Electronic Health Records (EHRs). Structuring healthcare data enables extracting and reusing clinical information for both primary and secondary purposes, contributing to the goal of creating a digital society across multiple social arenas. We use an action research approach to follow an empirical project, developing an openEHR-based registry form, and trying out the initial methodology for designing structured user interfaces in a health organization. The aim of the paper is to describe and discuss socio-technical challenges related to expert users designing openEHR-based forms. The findings relate to 1) the complex design tools 2) the compromise between instant benefit and long-term requirements 3) the need for extensive governance for user-designed software, and 4) the importance of contextualization.
Unsupervised Text Topic-Related Gene Extraction for Large Unbalanced Datasets

: There is a common notion that traditional unsupervised feature extraction algorithms follow the assumption that the distribution of the different clusters in a dataset is balanced. However, feature selection is guided by the calculation of similarities among features when topic keywords are extracted from a large number of unmarked, unbalanced text datasets. As a result, the selected features cannot truly reflect the information of the original data set, which thus affects the subsequent performance of classifiers. To solve this problem, a new method of extracting unsupervised text topic-related genes is proposed in this paper. Firstly, a sample cluster group is obtained by factor analysis and a density peak algorithm, based on which the dataset is marked. Then, considering the influence of the unbalanced distribution of sample clusters on feature selection, the CHI statistical matrix feature selection method, which combines average local density and information entropy together, is used to strengthen the features of low-density small-sample clusters. Finally, a related gene extraction method based on the exploration of high-order relevance in multidimensional statistical data is described, which uses independent component analysis to enhance the generalisability of the selected features. In this way, unsupervised text topic-related genes can be extracted from large unbalanced datasets. The results of experiments suggest that the proposed method of extracting unsupervised text topic-related genes is better than existing methods in extracting text subject terms from low-density small-sample clusters, and has higher prematurity and feature dimension-reduction ability.
Advances on cognitive automation at LGI 2 P / Ecole des Mines d ' Alès

The Health sector being a part of the Critical National Infrastructure entails a high risk, coupled with the ever growing of technology implementation in the health sector. The case of the French Mobile Field Hospital that employs the support of cyber assets to improve service delivery efficiency, in turn exposes it to certain threats. This research focuses on assessing the current organizational standards and procedure in using these assets, its users and their implementation, as well as proposing certain procedures, policies, strategies and technical knowhow on how to achieve Cyber resilience. Reviewing and learning from recent cyber events and their impacts on the affected organization, in terms of preparing, detecting, responding and recovering from such. This is done through a series of cyber assessment methods, simulation exercises and the setup for vulnerability assessments of its cyber assets.
Relationship between flavor dilution values and odor unit values in hydroalcoholic solutions : Role of volatility and a practical rule for its estimation

The gas−liquid partition coefficients (GLPC) of a series of compounds in hydroalcoholic solutions have been determined experimentally in order to show that it is possible to establish a direct relationship between the odor unit values (actual concentration/odor threshold) and the flavor dilution values from an aroma extract dilution analysis (AEDA). GLPCs depend primarily on the chemical functionality of the compound and secondarily on its intrinsic volatility, and it is shown that GLPCs can be estimated from GC retention data. The GLPC of a compound is directly proportional to Iap∧1.32 and inversely proportional to ΔI∧4.61, ΔI being the difference between the retention indexes of the compound in a Carbowax 20M column and in a BP-5 column, while Iap is the RI of the compound in the latter column. The function has been applied to the determination of the odor spectrum of Grenache red wine from FD values and has yielded satisfactory results. Keywords: Gas chromatography/olfactometry; AEDA; flavor; odorant; wine
Effect of 12 hour-fasting promoted by breakfast omission on acute weight loss and physical performance of taekwondo athletes

Background & Study Aim: Fasting is one of the most used nutritional strategies for weight loss by taekwondo athletes, but it could decrease sports performance. However, fasting promoted by breakfast omission may be an efficient alternative to rapid weight loss without negatively impair performance. This study aim was answer to question: whether 12-hour fasting promoted by breakfast omission promotes acute weight loss and interferes with the general and specific physical performance of taekwondo athletes. Material & Methods: In a randomized, double-blind, crossover design, 10 black belts taekwondo athletes performed two experimental sessions of countermovement jump (CMJ) and three rounds of Frequency of Speed Kick Test multiple (FSKTmult) series. Physical performance was determined by the total kicks of the three rounds (TK) and of each round (TKR) performed after fasting, in two conditions: after ingesting a placebo drink or a liquid meal. Rate perception effort of the mean of the three rounds (RPEm), rate perception effort of each round (RPE), the total kicks decrement index (TKDI) and the kicks decrement index in each round (KDI) were measured. Results: Total body mass decrease significantly between pre (64.68 ±7.11 kg) and post-fasting (64.03 ±7.03 kg) (p = 0.001; d = 0.09; Δ = 1%). CMJ, TK, RPEm and TKDI were not different between situations. KDI was not different between rounds in any condition. TKR decreased (p<0.001) between the three rounds but not between situations. RPE was not different between situations (p = 0.27) but increased between rounds (p<0.05). Conclusions: A 12-hour fasting promoted by breakfast omission may be efficient to significantly decrease total body mass, without decrease the physical performance of taekwondo athletes.
Diffuse scattering from the lead-based relaxor ferroelectric PbMg_1/3Ta_2/3O_3

The relaxor ferroelectric PbMg_1/3Ta_2/3O_3 was studied by single-crystal neutron and synchrotron x-ray diffraction and its detailed atomic structure has been modeled in terms of static Pb-displacements that lead to the formation of polar nanoregions. Similar to the other members of the Pb-based relaxor family like PbMg_1/3Nb_2/3O_3 or PbZn_1/3Nb_2/3O_3 the diffuse scattering in the [H,0,0]/[0,K,0] scattering plane has a butterfly-shape around the (h,0,0) Bragg reflections and is transverse to the scattering vector for (h,h,0) peaks. In the [H,H,0]/[0,0,L] plane the diffuse scattering is elongated along the directions and is transverse to the scattering vector for (h,h,h) reflections. We find that a model consisting of correlated Pb-displacements along the -directions reproduces the main features of the diffuse scattering in PbMg_1/3Ta_2/3O_3 adequately when the correlation lengths between the Pb-ion displacement vectors are longest along the and and shortest along directions.
Abinitio configuration interaction study of the valence states of O2

Configuration interaction calculations have been performed for the 62 electronic states of O2 arising from O atoms in the lowest 3P, 1D, and 1S states. The calculations used an extended one‐particle basis set, and included internal and semi‐internal electron correlation effects. Numerical values for potential curves are reported for all states. Detailed comparison with experiment and other calculations is made for the seven lowest bound states: X 3Σg−, a 1Δg, b 2Σg+, c 1Σu−, C 3Δu, A 3Σu+, and B 3Σu−. For these seven states the maximum error in the calculated spectroscopic constants Re, De, Te, and ωe are 0.04 A, 0.4 eV, 0.2 eV, and 120 cm−1, respectively.
The Mediating Role of Competitive Strategy: Cost Leadership and Differentiation in the Effect of Managerial Perception of Marketing Performance in Disaster Tourism

Badaruddin, Nasir, Hizir Sofyan, Hasan Basri, Nurdasila, Doctoral Program student of Management Science, Universitas Syiah Kuala Banda Aceh and Lecturer of Economic and Business Faculty of Serambi Mekkah Banda Aceh, Lecturer at Doctoral Program in Management Science Universitas Syiah Kuala, Banda Aceh, Department of Statistic Syiah Kuala universitas Banda Aceh Indonesia, Lecturer at Doctoral Program in Management Science universitas Syiah Kuala, Banda Aceh, Email: badar.manajemen@gmail.com
Solid phase microextraction gas chromatography-glowdischarge-optical emission detection for tin and lead speciation

A modified interface between a gas chromatograph (GC) and a hollow cathode (HC) radiofrequency (rf) glow discharge (GD) with detection by optical emission spectrometry (OES) has been investigated for elemental speciation studies. Solid phase microextraction (SPME), used for extraction and preconcentration of organic compounds, is here used for the introduction of the metal species under investigation into the injector of the GC, after preconcentration of metal species ethylated “in situ” with sodium tetraethylborate. Tin [monobutyltin (MBT), dibutyltin (DBT) and tributyltin (TBT)] and lead species [trimethyllead (TML) and triethyllead (TEL)] were used as models and separated using a capillary column. Detection by rf-(HC)GD-OES was accomplished at 283.9 nm for tin and 283.3 nm for lead. After optimization of the parameters affecting the rf-(HC)GD signals (pressure, radiofrequency power and He flow rate used as plasma gas) and also the parameters affecting the SPME technique (adsorption time, desorption time, injector temperature and position of the fiber into the injector of the GC), the analytical characteristics were calculated. Good detection limits for the tin and lead species under study (0.021 µg L−1 for MBT, 0.026 µg L−1 for DBT, 0.075 µg L−1 for TBT, 0.03 µg L−1 for TEL and 0.15 µg L−1 for TML) were achieved. Finally, the accuracy of the proposed speciation methodology was tested by analysing a certified reference material (sediment PACS-2) from the National Research Council of Canada.
The Role of Money in Monetary Policy at the Lower Bound

In light of the current low-interest-rate environment, we reconsider the merit of a money growth target (MGT) relative to a conventional ination targeting (IT) regime, and to the notion of price level targeting (PLT). Through the lens of a New Keynesian model, and accounting for a zero lower bound (ZLB) constraint on the nominal interest rate, we show, not surprisingly, that PLT performs best in terms of social welfare. However, the ranking between IT and MGT is not a foregone conclusion. In particular, although MGT makes monetary policy vulnerable to money demand shocks, it contributes to achieving price level stability and reduces the incidence and severity of the ZLB relative to both IT and PLT. We also show that MGT lessens the need for the scal authority to engage alongside the central bank in ghting recessions. To illustrate this scal bene t of MGT, we introduce a simple rule for the scal authority to raise government purchases when GDP falls below potential. If the government fails to make up for a substantial share of the shortfalls in GDP, then IT performs worse than MGT from the perspective of society.
Preparation of poly(styrene-co-acrylonitrile)-grafted multiwalled carbon nanotubes via surface-initiated atom transfer radical polymerization

The in situ grafting-from approach via atom transfer radical polymerization was successfully applied to polystyrene, poly(styrene-co-acrylonitrile), and polyacrylonitrile grafted onto the convex surfaces of multiwalled carbon nanotubes (MWCNTs) with (2-hydroxyethyl 2-bromoisobutyrate) as an initiator. Thermogravimetric analysis showed that effective functionalization was achieved with the grafting approach. The grafted polymers on the MWCNT surface were characterized and confirmed with Fourier transform infrared spectroscopy and nuclear magnetic resonance. Raman and near-infrared spectroscopy revealed that the grafting of polystyrene, poly(styrene-co-acrylonitrile), and polyacrylonitrile slightly affected the sidewall structures. Field emission scanning electron microscopy showed that the carbon nanotube surface became rough because of the grafting of the polymers. Differential scanning calorimetry results indicated that the polymers grafted onto MWCNTs showed higher glass-transition temperatures. The polymer-grafted MWCNTs exhibited relatively good dispersibility in an organic solvent such as tetrahydrofuran.
Preparation and Recognition Characteristics of Thymopentin Molecularly Imprinted Polymers on SiO2

A computer simulation approach was developed to screen functional monomers for the rational design of molecularly imprinted polymers (MIPs). The proposed approach is based on a comparison of the binding energy of complexes, which are formed by the interaction between a template molecule and various functional monomers. According to the results of theoretical calculations, MIPs using thymopentin (TP5) as a template were prepared by a solution polymerization method, in which 2-methylacrylamide, N,N'-methylenebisacrylamide and poly(methylacrylic acid)/SiO2 were used as the functional monomer, cross-linker and support, respectively. Solid-phase extraction experiments were performed, and static and dynamic binding properties of the synthesized MIP (i.e. TP5-MIP) for TP5 were studied. Results show that TP5-MIP exhibits excellent binding affinity and specific selectivity for the template molecule (i.e. TP5).
Synthesis of Block Copolymers Modified with Phosphonate Ester Groups Using Nitroxide-Mediated Radical Polymerization

Phosphonate groups were introduced into block copolymers of styrene derivatives either as single end-groups or as small blocks using nitroxide-mediated radical polymerization. In order to combine the hydrophobic and hydrophilic segments, block copolymers with N,N-dimethylacrylamide were synthesized. After hydrolysis to phosphonic acid groups, adsorption of the polymer onto metal oxides was possible.
Using Knowledge Space Theory To Assess Student Understanding of Stoichiometry

Using the concept of stoichiometry we examined the ability of beginning college chemistry students to make connections among the molecular, symbolic, and graphical representations of chemical phenomena, as well as to conceptualize, visualize, and solve numerical problems. Students took a test designed to follow conceptual development; we then analyzed student responses and the connectivities of their responses, or the cognitive organization of the material or thinking patterns, applying knowledge space theory (KST). The results reveal that the students' logical frameworks of conceptual understanding were very weak and lacked an integrated understanding of some of the fundamental aspects of chemical reactivity. Analysis of response states indicates that the overall thinking patterns began with symbolic representations, moved to numerical problem solving, and then lastly to visualization: the acquisition of visualization skills comes later in the knowledge structure. The results strongly suggest the need fo.