Miracle-dz/UniFAR-FTUs huggingface dataset:
Operad bimodules, and composition products on Andre-Quillen filtrations of algebras

If O is a reduced operad in symmetric spectra, an O-algebra I can be viewed as analogous to the augmentation ideal of an augmented algebra. Implicit in the literature on Topological Andre-Quillen homology is that such an I admits a canonical (and homotopically meaningful) decreasing O-algebra filtration I > I^2 > I^3 > . satisfying various nice properties analogous to powers of an ideal in a ring. In this paper, we are explicit about these constructions. With R a commutative S-algebra, we study derived versions of the circle product M o_O I, where M is an O-bimodule, and I is an O-algebra in R-modules. Letting M run through a decreasing O-bimodule filtration of O itself then yields the augmentation ideal filtration as above. The composition structure of the operad induces algebra maps from (I^i)^j to I^{ij}, fitting nicely with previously studied structure. As a formal consequence, an O-algebra map from I to J^d induces compatible maps from I^n to J^{dn}, for all n. This is an essential tool in the first author's study of Hurewicz maps for infinite loop spaces, and its utility is illustrated here with a lifting theorem.
PHARMACOLOGICALLY ACTIVE α-LINOLENIC ACID (ALA, 18:3ω3), THE PRIMARY PRECURSOR MOLECULE FOR - ω3 SERIES OF POLYUNSATURATED FATTY ACID(PUFA) FROM MANGROVE ECOSYSTEM

The fatty acid compositions of the three selected mangrove plant leaves and detritus of the leaves have been studied by gas liquid chromatography and other chromatographic techniques. Altogether 25 components were detected and estimated. Major fatty acids recorded were palmitic (16:0), stearic (18:0), oleic (18:1ω9), linoleic (18:2ω6) and α-linolenic (18:3ω3). Of the unsaturated fatty acids, considerably higher levels of pharmacologically active fatty acids, viz. linoleic and α-linolenic acids were recorded. The α-linolenic acid is incorporated into cell membranes, promotes the health of blood vessels and is converted to long-chain omega-3 fatty acids. Such findings have suggested that these plant species studied are also a potential source of pharmacologically active α-linolenic acid, the primary precursor molecule for – ω3 family of fatty acids in animal tissues.
Empirical Determinants of Employee Resistance Against Innovations

Employee resistance against innovations is a virulent phenomenon and there is a broad theoretical literature on its determinants. The empirical evidence is scarce, however, and mainly provides descriptive evidence on the incidence of the phenomenon and concentrates on the effectiveness of change management as a measure against it. A second branch of the empirical literature investigates the impact of unions on adoption costs and the successful implementation of innovations. There is no representative evidence on the impact of the economic environment on employee opposition against the implementation of an innovation in the firm independent of managerial activities, however. This paper uses a unique firm-level data set of a representative sample of German service firms which includes detailed information on the economic environment of the firm. It shows that employee opposition against innovations can be predicted by very basic information on the firm that is relevant for the economic situation of the employees. Employee opposition is smaller in firms whose generic business strategy is differentiation, while it is larger in firms aiming at gaining competitive advantage by low costs and prices. If the goals of the innovation is an increase in employee performance, the firm experiences higher resistance, while resistance is lower in firms aiming at increasing the product range by the innovation. Profit and turn over expectations of the firm and the outside option of the employees are negatively correlated with employee resistance. Finally, smaller firms and firms operating in the computer and software or the technical consulting sector experience lower employee resistance. Therefore, the focus on change management measures or union activities in order to predict employee resistance against innovations seems too narrow.
Spitzer spectral line mapping of the HH211 outflow

Context. Jets from the youngest protostars are often detected only at mm wavelengths, by means of line emission of CO and SiO. However, it is not yet clear whether these jets are mostly molecular or atomic, nor whether they trace ejected gas or an entrained layer around an embedded atomic jet. Aims. We investigate the warm gas content of the HH211 protostellar outflow to assess the jet mass-flux in the form of H2 and investigate the existence of an embedded atomic jet. Methods. We employ archival Spitzer slit-scan observations of the HH211 outflow over 5.2–37 μm obtained with the low resolution IRS modules. Detected molecular and atomic lines are interpreted by means of emission line diagnostics and an existing grid of molecular shock models. The physical properties of the warm gas are compared with those of other molecular jet tracers and to the results of a similar study towards the L1448-C outflow. Results. We detected and mapped the v = 0−0 S(0)–S(7) H2 lines as well as fine-structure lines of S, Fe + ,a nd Si + . T he H 2 is detected to 5 �� from the source and is characterized by a “cool” T ∼ 300 K and a “warm” T ∼ 1000 ± 300 K component, with an extinction AV ∼ 8 mag. The amount of cool H2 towards the jet agrees with that estimated from CO assuming fully molecular gas. The warm component is well fitted by C-type shocks with a low beam filling factor ∼0.01–0.04 and a mass-flux similar to the cool H2 . T he fine-structure line emission arises from dense gas with ionization fraction ∼0.5−5 × 10 −3 , and is indicative of dissociative shocks. Line ratios with respect to sulfur indicate that iron and silicon are depleted relative to solar abundances by a factor ∼10–50. Conclusions. Spitzer spectral mapping observations reveal for the first time a cool H2 component towards the CO jet of HH211 consistent with the CO material being fully molecular and warm at � 300 K. These maps detect also for the first time an embedded atomic jet in the HH211 outflow that can be traced close to the central source position. Its significant iron and silicon depletion excludes an origin from within the dust sublimation zone around the protostar. The momentum-flux seems insufficient to entrain the CO jet, although current uncertainties in jet speed and shock conditions are too large to reach a definite conclusion.
Development of a Novel Control for a Matrix Converter Interfaced Wind Energy Conversion System for Dynamic Performance Enhancement

Abstract This article presents the development of a novel control for matrix converter interfaced permanent magnet wind energy conversion system. Here, an adaptive fuzzy control algorithm incorporated with a reversed matrix converter is proposed to yield maximum energy with enhanced dynamic performance and low harmonic characteristics. The control algorithm is implemented using a dSPACE DS1104 real-time board (dSPACE, Paderborn, Germany). Feasibility of the proposed system has been verified through simulation and experiment results using a laboratory 1.2-kW prototype of a wind energy conversion system under dynamic conditions.
Antimicrobial activity of rare actinomycetes isolated from natural habitats in KwaZulu-Natal, South Africa

This paper reports the presence of new antibiotic-producing organ- isms in the relatively underinvestigated region of KwaZulu-Natal, South Africa. Using a modified agar-streak method and selective isolation media during the primary screening phase, eighty isolates showing antimicrobial activity were isolated from soil samples of various habitats in the KwaZulu-Natal Midlands. The use of selec- tive isolation media, with antibiotic incorporation and/or heat pretreatment, enhanced the isolation of certain rare actinomycete colonies. The number of culturable antibiotic-producing microor- ganisms constituted about 3% (on average) of the total microbial population in the different samples studied. The highest percent- age of antimicrobially active isolates came from a forest soil site whereas the lowest percentage was present in a riparian soil. One of the isolates, N8, tentatively identified as an Intrasporangium species, was isolated from barnyard soil at a poultry farm. It produced at least one broad-spectrum antibiotic active against both Gram-positive and Gram-negative bacteria and fungi and also inhibited the growth of all seven test organisms, especially Pseudo- monas fluorescens and Xanthomonas campestris pv campestris at minimum inhibitory concentrations (MIC) of 0.0625 µg/ml and 0.0025 µg/ml, respectively. To our knowledge, members of this actinomycete genus have not been associated previously with antibiotic production. These data confirm that KwaZulu-Natal soils harbour rare actinomycetes that inhibit the growth of Pseudomonas fluorescens and Xanthomonas campestris pv campestris, represen- tatives of two genera which are notoriously difficult to contain in the field. Such antibiotic producers should become more commercially important if the current trend towards the use of biocontrol agents rather than chemical treatments of plant diseases persists.
Height and Leadership

Abstract This paper studies the relationship between height and leadership. Using data from a representative sample of Swedish men, I document that tall men are significantly more likely to attain managerial positions. An increase in height by 10 centimeters (3.94 inches) is associated with a 2.2 percentage point increase in the probability of holding a managerial position. Selection into managerial positions explains about 15% of the unconditional height-wage premium. However, about half of the height-leadership correlation is due to a positive correlation between height and cognitive and noncognitive ability.
The architecture of the nervous system of Echiniscus testudo (Echiniscoidea, Heterotardigrada)

Despite the fact that there are several descriptions of the nervous system of Tardigrada there is still dispute about how to interpret the organisation of these structures. Is the structure of the brain homologous to segmental equivalents of the arthropod brain or not? The latest studies concerning these questions concentrate on specimens from the taxon Eutardigrada, but a representative of Heterotardigrada has been missing. Therefore, in this immunohistochemical study the organisation of the nervous system of Echiniscus testudo is investigated and can be described as follows. In the brain of E. testudo several distinct regions can be recognised. These are the anterior, dorsal, dorsoventral, inner and posterior clusters. Furthermore a ventral cluster can be detected that is connected to the dorsoventral clusters. The brain is followed by four ventral ganglia that are positioned slightly anterior to their corresponding pair of legs. The brain and the first ventral ganglion are connected via connectives showing tyrosinated α-tubulin and RFamide immunoreactivity. A connection between the first ventral ganglion and the ventral cluster could not be detected, at least not with our antibody set. In longitudinal direction the ventral ganglia are chained by connectives, and transversal interconnections via commissures are present. In addition to the commissures connecting the hemiganglia, three commissures could be detected lying anterior to the second, the third and the fourth ventral ganglion. In some specimens between the second and the third ganglion, bilaterally arranged neurites could be detected that run in a loop to the dorsal part of the specimens. The hereindescribed organisation is compared with previously published data on the nervous system of Tardigrada, and we conclude that the lobate organisation of the brain of E. testudo comprises an arrangement due to functional needs rather than to reflect an organisation into arthropod-like proto-, deuto- and trito-cerebrum.
Topologies and control strategies of very high frequency converters: A survey

with the fast development of power electronics, very high frequency (VHF) power converters (30-300 MHz) gradually become research focus, which can greatly reduce the value, volume of passive components and help to improve the system power density. However, at such high operating frequency, many challenges have been proposed, such as switching characteristics, topologies characteristics and control methods. This paper starts from the development background of VHF power converters, and an overview of VHF development is described. Different topologies adopted in VHF condition are introduced and compared. At the same time, the resonant driving strategies and control methods for very high frequency converters are discussed and analyzed, which can provide guidance for further research of VHF converters.
UNIVERSIDADE ESTADUAL DE CAMPINAS INSTITUTO DE QUÍMICA MARCIO CRISTIANO MONTEIRO STUDY OF THE PROPERTIES OF PRUSSIAN BLUE

In this work, studies of pentacyanido(N-methylpyrazinium)ferrate(II) [Fe(CN)5(mpz)] 2(mpz = methylpyrazinium) and its Prussian blue (PB-mpz) were performed. The characterizations of the compounds were carried out by electronic (UV-Vis) and vibrational (IR) spectroscopies, spectroelectrochemistry, voltammetry and NMR. Electrochemical measurements showed an increase of reversibility of the reduction process of the mpz ligand when coordinated to the iron complex, with pH dependence. It was also found that the ligand exchange between NH3 and mpz increased the oxidation potential of the metal. Experiments of the complex’s stability in buffer solution showed that it has a good stability at low pH values. Substitution reaction using dimethyl sulfoxide occurs via dissociative mechanism with dissociation constant of 3.78 x 10 s. Data obtained for PB-mpz were compared with traditional Prussian blue (PB). Electronic and vibrational spectra showed characteristic bands of pentacyanidoferrate(II) and PB. Cyclic voltammograms revealed a shift of the reduction potential of the ligand and oxidation potential of the iron atoms in PBmpz structure. Job’s method was used in order to determinate the stoichiometry of PB and PB-mpz according to iron(III) ion and iron(II) complex content. PB has the proportion of 1:1 (Fe:[Fe(CN)6] ), on the other hand PB-mpz has the stoichiometry of 1:2 (Fe:[Fe(CN)5(mpz)] ). XRD data indicated low crystallinity for PB-mpz compound. Finally, chemically modified electrodes by PB-mpz were used as electrochemical sensor of H2O2, with a linear response in the determination of this analyte. SUMMARY
CRITICAL SUCCESS FACTORS OF UNIVERSITI TEKNOLOGI MARA (UiTM) MELAKA BRANCH

Universities worldwide striving to excel in the management of academic achievements, student activities, research and industrial linkages need to scrutinize their critical success factors (CSFs). UiTM Melaka is not an exception. To achieve excellence, one of the key determinants is proper planning and initiatives in strategizing and systemizing the processes involved. The objectives of this paper are to discuss the practices and achievements of UiTM Melaka, and to identify its CSFs. The good practices are such as top-down commitment by the management, bottom-up involvement of staff from every level, cultivating and sharing culture in every program, continuous improvement in carrying out tasks and responsibilities, reward and recognition for outstanding staff and setting a long term goal in connecting the industry and community with academia. Those good practices have showed various promising results. For instance, UiTM Melaka has developed a proper procedure in appointing academic administrators, achieved the highest percentage of student voters among the 34 campuses, enhanced entrepreneurship development among students, secured the highest number of grants for social science, registered 60 product innovations with copyrights and commercialized seven products, published the first edition of consultants directory and generated more than RM200,000 from training and activities organized through memorandum of understandings. The achievements were obtained through CSFs of UiTM Melaka. The CSFs identified were (i) academic affairs administration; (ii) student affairs administration; (iii) entrepreneurship development; (iv) research grant administration; (v) invention, innovation and commercialization; (vi) industrial linkages development and; (vii) internationalization. The CSFs have truly encouraged its staff and students to build the university together. As such, adapting CSFs has aided the management to excel in achieving its goals. Keywords: Achievement, Critical success factors, Management, Practices, University
Studies on the antitumor potentials of betulinic acid against murine ascites Dalton’s lymphoma

Background: Betulinic acid, a naturally occurring pentacyclic triterpene, exhibits a variety of biological activities including anticancer properties. Despite the wide importance of ethnobotanical studies on the anticancer therapeutic uses of betulinic acid, its exact role has not been fully elucidated. Therefore, the present studies were undertaken to evaluate the antitumor effect of betulinic acid in a murine malignant tumor model along with various biochemical changes in the tumor cells of the host. Methods: Ascites Dalton’s lymphoma (DL) tumor-transplanted Swiss albino mice were treated with betulinic acid (i.p., 10 mg/kg body weight) and the pattern of host’s survival was analysed. The viability of DL cells was assessed using trypan blue exclusion test. The DL cells were also studied for the determination of apoptosis using fluorescence microscopy. Reduced glutathione and protein estimations were done in DL cells under different treatment conditions. Results: Betulinic acid treatment caused a significant increase in life span (ILS ~150%) of the tumor-bearing hosts, which may indicate tumor regression/antitumor activity. Following betulinic acid treatment, decrease in DL cells viability and damaging changes in the cell membranes and a decrease in reduced glutathione content in DL cells were observed. Conclusions: Present findings reveal the potent antitumor activity of betulinic acid against murine ascites Dalton’s lymphoma. The cytotoxicity of betulinic acid to build up antitumor effects may involve induction of apoptosis as well as a decrease in glutathione level in tumor cells.
Study on increasing oil and gas recovery in oilfield by using partially hydrolyzed polyacrylamide

Polyacrylamide (PAM) is a linear water-soluble polymer, which is one of the most widely used varieties. Partially hydrolyzed polyacrylamide (HPAM) is currently widely used in domestic oilfield tertiary oil recovery. Practice has proved that the use of HPAM as a polymer flooding to improve oil recovery (EOR) effect is obvious, and has become the oil and gas production in the middle of a crucial part. Theoretically, polyacrylamide can play a role in mediating the rheological properties of water injection, increasing the viscosity of the driving fluid, improving the efficiency of water flooding and so on. However, in practical applications, it is necessary to select polyacrylamide with different molecular morphology or molecular weight according to the difference of geological environment conditions such as dielectric porosity and various ionic components and contents in groundwater. Therefore, it is of great theoretical and practical significance to correctly evaluate the molecular chain morphology of polyacrylamide in different geological environments and to make more effective use of existing resources for rationally explaining the mechanism of polymer flooding. In this study, through the detailed study on the properties of partially hydrolyzed polyacrylamide, it can be applied to oil and gas exploitation in oil field, which can provide reference for oil and gas recovery.
FMRSS Net: Fast Matrix Representation-Based Spectral-Spatial Feature Learning Convolutional Neural Network for Hyperspectral Image Classification

Convolutional Neural Network- (CNN-) based land cover classification algorithms have recently been applied in hyperspectral images (HSI) field. However, the large-scale training parameters bring huge computation burden to CNN and the spatial variability of spectral signatures leads to relative low classification accuracy. In this paper, we propose a CNN-based classification framework that extracts square matrix representation-based spectral-spatial features and performs land cover classification. Numerical results on popular datasets show that our framework outperforms sparsity-based approaches like basic thresholding classifier-weighted least squares (BTC-WLS) and other deep learning-based methods in terms of both classification accuracy and computational cost.
The influence of fallback discs on the spectral and timing properties of neutron stars

Fallback discs around neutron stars (NSs) are believed to be an expected outcome of supernova explosions. Here we investigate the consequences of such a common outcome for the timing and spectral properties of the associated NS population, using Monte Carlo population synthesis models. We find that the long-term torque exerted by the fallback disc can substantially influence the late-time period distribution, but with quantitative differences which depend on whether the initial spin distribution is dominated by slow or fast pulsars. For the latter, a single-peaked initial spin distribution becomes bimodal at later times. Timing ages tend to underestimate the real age of older pulsars, and overestimate the age of younger ones. Braking indices cluster in the range 1.5 ≲n≲ 3 for slow-born pulsars, and −0.5 ≲n≲ 5 for fast-born pulsars, with the younger objects found predominantly below n≲ 3. Large values of n, while not common, are possible, and associated with torque transitions in the NS+disc system. The 0.1–10 keV thermal luminosity of the NS+disc system is found to be generally dominated by the disc emission at early times, yr, but this declines faster than the thermal surface emission of the NS. Depending on the initial parameters, there can be occasional periods in which some NSs switch from the propeller to the accretion phase, increasing their luminosity up to the Eddington limit for ∼103–104 years.
On Nonlocal Elliptic Systems of p(x)-Kirchhofi-Type under Neumann Boundary Condition

This paper is concerned with the existence of solutions to a class of p(x)-Kirchhofi- type systems under Neumann boundary condition. By Ekeland Variational Principle and the theory of the variable exponent Sobolev spaces, we establish conditions ensuring the existence of solutions for the problem. Since the Poincare's inequality does not hold in the space W 1;p(x) (›), we shall prove the Poincare-Wirtinger's inequality in a subspace of W 1;p(x) (›). p(x) dx)div(jruj p(x)i2 ru) = @F @u F(u;v) + ‰1(x) in ›; iM2( R › 1 q(x) jrvj q(x) dx)div(jrvj q(x)i2 rv) = @F @v F(u;v) + ‰2(x) in ›; @u @" = @v @" = 0 on @›; (1.1) where › is a bounded domain in R N with a smooth boundary @›, " is the unit exterior vector on @›, p(x);q(x) 2 C(›) with 1 < p i := min › p(x) • p + := max › p(x) < +1 and 1 < q i := min › q(x) • q + := max › q(x) < +1, M1(t), M2(t) are continuous functions. We conflne ourselves to the case where M1 = M2 for simplicity. Notice that the results of this paper remain valid for M1 6 M2 by adding some slight changes in the hypothesis (H2). The function F :R £R ! R is assumed to be of class C 1 in u;v 2R. The operator idiv(jruj p(x)i2 ru) is said to be the p(x)-Laplacian, and becomes p-Laplacian when p(x) · p (a constant). The p(x)-Laplacian possesses more complicated nonlinearities than the p-Laplacian; for example, it is inhomogeneous. The study of various mathematical problems with variable exponent growth condition has been received considerable attention in recent years. These problems are interesting in applications and raise many di-cult mathematical problems. One of the most studied models leading to the problem of this type is the model of motion