Miracle-dz/UniFAR-FTUs huggingface dataset:
Knowledge sharing and innovation capability at both individual and organizational levels: An empirical study from Vietnam’s telecommunication companies

Abstract This paper aims at investigating the relationship between knowledge sharing activities and innovation capability at both individual and organizational levels. By reviewing extensive literature, a conceptual framework is built with integrating three factors: knowledge sharing, individual innovation capability and firm innovation capability. This study applies structural equation modeling (SEM) to analyze the data collected from 392 employees working at major Vietnam’s telecommunication companies. Empirical results show that knowledge sharing including knowledge donating, knowledge collecting play an important role in improving individual innovation capability. There is no direct link between knowledge collecting and organizational innovation capability, while knowledge donating has direct positive impact on product and managerial innovation. Furthermore, the individual innovation capability acts as a mediating variable between knowledge sharing practices and firm innovation capability. Implications for academics and practitioners are provided in this study.
Position of sport in subjective quality of life of deaf people with different sport participation level

Abstract The objective of the present study was to analyse the position of sport as a quality of the life domain (QOLD) in subjective quality of life (S-QOL) in deaf and hard of hearing (D/HH) people with different sport participation level. Three groups of D/HH people (n=164) were recruited for the study: elite and competitive athletes (ECA; n=30; mean age 22.2±1.8 years), recreational athletes (RA; n=22; mean age 25.2±2.0 years) and non-athletes (NA; n=112; mean age 26.8±1.9 years). D/HH ECA are the most satisfied in their lives equally with their sport participation, social relations, physical health and the level of independence together with general health. D/HH RA reported the highest satisfaction with sport participation, social relations and with physical health and the level of independence. Position of sport is in ECA and RA lives is the priority number one as well as the satisfaction with other QOLDs as social relations, physical health and level of independence. The position of sport participation in D/HH NA among the QOLDs was interestingly in the second place in the order together with physical health and level of independence domain. Inclusive participation in sport from the earliest age of D/HH children together with able-bodied peers should help better understand mutual communication. Than D/HH people would remain in regular sport participation in later life and so S-QOL among D/HH minority population would be significantly increased.
Disparity as an evolutionary index: a comparison of Cambrian and Recent arthropods

Disparity is a measure of the range or significance of morphology in a given sample of organisms, as opposed to diversity, which is expressed in terms of the number (and sometimes ranking) of taxa. At present there is no agreed definition of disparity, much less any consensus on how to measure it. Two possible categories of metric are considered here, one independent of any hypothesis of relationship (phenetics), the other constrained within an evolutionary framework (cladistics). The Early Cambrian radiation was clearly a period of significant morphologic and taxonomic diversification. However, we question the interpretation of its first generation products as numerous body plans at the highest level. Four phenetic and two cladistic measures have been used to compare disparity among Cambrian arthropods with that in the living fauna. Phenetic methods assessing character-state variability and the amount of morphological attribute space occupied yield similar results for Cambrian and Recent arthropods. Assessments of disparity within a taxonomic framework rely on the identification of particular characters that delineate higher level body plans. This requires a phylogenetic interpretation, a cladistic investigation of hierarchical structure in the data. Both sets of arthropods fall within the same major clades, and within this cladistic framework the amount of character-state evolution in the two groups is comparable. None of these methods identifies markedly greater disparity among the Cambrian compared with the Recent taxa. Although measures of disparity are applied here to a consideration of the Cambrian radiation, the metrics clearly have a much wider potential for estimating macroevolutionary trends independently from existing taxonomic frameworks. Geometric morphometry is ideal for measuring morphological variety at lower taxonomic levels, but it requires the recognition of homologous landmarks in all the forms under comparison, or the identification of entire homologous structures. Conventional phenetics has much wider application as it can operate on data coded as discrete homologous character states (this facility is also a requirement of cladistics), which are a more appropriate basis for comparing disparity in markedly dissimilar forms.
Dynamics of mid-channel bars in the Middle Vistula River in response to ferry crossing abutment construction

Abstract The investigation focused on the non-migrating mid-channel bars that emerged in the river channel as a consequence of river engineering. A reach of around 280 km of Middle Vistula River (Poland) was taken into account as the study site. The most vivid examples of the river engineering works potentially influencing the river channel are the ferry crossings. Along the Middle Vistula River reach, there are 17 ferry crossings that were constructed from 1970s to 1990s. A cartographic analysis was carried out to determine the influence of the ferry crossing construction over the river channel. It was performed on the basis of aerial photographs (traditional aerial photography and UAV photography). In 3 out of 17 potential localizations, the emergence of large non-migrating mid-channel bars was observed. A study of cartographic materials (from 1950s to 2000s) allowed determination of the dynamics of those bars, including time of emergence and the changes of their size.
Evaluating antioxidant property of brown ALGA Colpomenia sinuosa (DERB. ET SOL)

The brown alga, Colpomenia sinuosa was subjected to DPPH (1,1-diphenyl-2-picryl hydrazyl), nitric oxide radical, hydrogen peroxide, scavenging of ABTS radical and Total antioxidant capacity (TAC) inhibitory assays to assess its antioxidant property. The dimethyl sulphoxide (DMSO) and methanol extracts showed highest antioxidant activity in DPPH (96.56 and 88.57%), nitric oxide radical (81.2 ± 4.1% and 76.69 ± 3.1 %), hydrogen peroxide (70.7 ± 3.5 and 56.6 ± 2.0%) and ABTS (76.8 ± 3.8% and 74.0 ± 2.8%). The moderate activity was observed in total antioxidant capacity (60.3 ± 4.3 and 57.0 ± 2.0) assay. The activity was higher and comparable to that of commercial antioxidants butylated hydroxy anisole (BHA) (87.38 ± 1.32%) and butylated hydroxy tolune (BHT) (56.05 ± 0.19%) at 2 mg/ml concentration. The significant free radical scavenging activity of C. sinuosaindicated that it could be a potential source for natural antioxidant lead molecules. Key words: ABTS, Colpomenia sinuosa, DPPH, hydrogen peroxide, nitric oxide radical.
Blue native gel electrophoresis and mass spectrometric identification of multi- protein complexes in retinal pigment epithelial cells

Vision starts with the photoactivation of visual pigments in the rod and cone photoreceptor cells. It critically depends on a continuous supply of the ligand 11-cis retinal to the bleached or newly synthesized visual pigment apo-protein opsin. Responsible for this supply is the visual cycle also designated retinoid cycle (1). The visual cycle is best described as the sequential action of proteins in the photoreceptor cell outer segments and in the adjacent retinal pigment epithelium (RPE). In the RPE, enzymes and retinoid transporters control the conversion of the all-transretinol (vitamin A) into 11-cis-retinal. Human hereditary retinal degenerations have been found associated with mutations in genes encoding these retinoid processing proteins (e.g. RPE65, cRALBP, RDH5, LRAT, RGR, etc.). Our hypothesis is that the biochemical and enzymatic reactions of the visual cycle, including potentially toxic oxido-reductase reactions in the RPE cell, are tightly organized in subcellular MultiProtein Complexes. Interestingly, in a recent interaction study of cRALBP, Nawrot et al. (2) also proposed a retinoid processing complex in the apical region of the RPE, adjacent to the rod outer segments, dedicated to regeneration of the chromophore (3). As a first step towards further dissection of retinoid processing complexes, we report here on preliminary proteomics experiments that focus on the analysis of the interactome of visual cycle proteins in the bovine RPE. The experimental approach is depicted in figure 1. In summary, to investigate the native configuration, we combined Blue Native (BN) gel electrophoresis with high-accuracy mass spectrometry (4, 5).
Genotyping of Bulgarian Vitis vinifera L. cultivars by microsatellite analysis

A characterization of the Bulgarian grapevine genepool ( Vitis vinifera L. cultivars) was initiated through microsatellite analysis. Seventy four wine and table grapevine varieties from the National List of Cultivars, were analyzed at 9 microsatellite loci: VVS2, ssrVvUCH11, ssrVvUCH 29, ssrVrZAG21, ssrVrZAG47, ssrVrZAG62, ssrVrZAG64, ssrVrZAG79 and ssrVrZAG83. The high genetic diversity (78 %) allowed accurate identification and discrimination of the cultivars. The low PI value (1.201 x 10 -8 ) reflects the high discriminative power of the chosen set of markers for the investigated population. Based on the microsatellite allele data, two pairs of old native varieties, Misket Cherven and Misket Vrachanski; Tamyanka and Tamyanka tvarda, were considered distinct cultivars. The synonymy of Tamyanka, Italian Moscato Bianco and Greek Moschato Kerkyras and Pamid and Greek Pamidi was verified, while the putative synonymy of Mavrud and Greek Mavroudi Arachovis was rejected. Further utilization of microsatellite profiling in the management of the Bulgarian grapevine genepool is discussed.
Characterization of Brucella species in Mexico by Bruce-Ladder polymerase chain reaction (PCR)

Brucella species are facultative intracellular pathogens that establish and maintain chronic infections in a wide variety of mammalian hosts (Moreno and Moriyón, 2002). Ten Brucella species are currently recognized for the genus Brucella (Whatmore et al., 2009). Brucellosis occurs worldwide, including the Mediterranean countries of Europe, northern and eastern Africa, India, Central Asia, Mexico, Central and South America are still no brucellosis free (Pappas et al., 2006). In Mexico, 93% of human brucellosis cases are due to B. melitensis acquired from goats, and a further 5% are of bovine origin (Luna-Martínez and Mejía-Terán, 2002; LópezMerino et al., 1992). The program for animal brucellosis control in Mexico is based on vaccination with B. abortus S19 and B. abortus RB51, and B. melitensis Rev 1: this program is limited to cattle, sheep and goats and includes standard preventive measures, such as quarantine and inspection of slaughterhouses (Luna-Martínez and MejíaTerán, 2002). The tests to perform the typing of different species of genus Brucella are time-consuming and require skilled technicians; moreover, handling of the microorganism
Polymorphism, sequencing and phylogenetic characterization of growth differentiation factor 9 (GDF9) gene in Assam Hill goat

Assam hill goat ( Capra hircus ) is a prolific local goat in India. Growth differentiation factor ( GDF9 ) gene was studied as a candidate gene for the prolificacy of goats. The objective of the present study was to detect the incidence of mutation in the exonic region of GDF9 gene of Assam hill goat. Total number of 90 blood samples were collected randomly from different parts of Assam and genomic DNA were extracted using modified phenol-chloroform method. The quantity and quality of extracted DNA was examined using spectrophotometry and gel electrophoresis, respectively. A 294 bp fragment of GDF9 gene was amplified using polymerase chain reaction (PCR). The purified product was digested with Dde I, Hha I and Alu I restriction enzymes which produced single type of banding pattern 242 and 52 bp, 140 and 154 bp, 134 and 160bp, respectively. The present study revealed wild type alleles and all the samples showed AA genotype. Nucleotide sequencing revealed two new mutations 495 (C ® A) and 387 (G ® A). Phylogenetic analysis showed that the sequences of Assam Hill goat belong to a common cluster which differs from that of the other goat breeds. The analysis of polymorphism for GDF9 in Assam Hill goat indicates that the genetic factor responsible for prolificacy or multiple kidding rate is not related to the reported mutated alleles of GDF9 gene. Therefore, attempts to be made to detect other single nucleotide polymorphism (SNPs) for GDF9 gene or otherwise effort should be made towards other fecundity gene which might be responsible for the prolificacy of Assam Hill goat. Keywords: Assam Hill goat, GDF9, polymorphism, polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Afr. J. Biotechnol Vol. 12 No. 50
What happens below the canopy? Direct and indirect influences of the dominant species on forest vertical layers

Temperate forests are one of the most important ecosystems in the world, and thus disentangling the factors that drive diversity within these ecosystems is of major concern. However, due to the complex interactions among forests layers, topography and soil factors, discovering the drivers of diversity is often complicated. In this study, we tested three a priori hypotheses about the effect of the dominant competitor (Pinus koraiensis) on the different forest layers in a 25 ha full mapped plot of temperate forest in the Changbai Mountain of northeastern China. Structural equation modelling (SEM) was used to study the direct and indirect interactions between four vertical forest layers (dominant competitor, canopy composition, sub-canopy diversity and shrub diversity), topographic factors, edaphic factors to discover sub-canopy and shrub diversity drivers. Our results suggest that the dominant competitor (Pinus koraiensis) is a key factor explaining canopy variation, and sub-canopy diversity and shrub diversity, and that this competitor can act directly (through shading) and indirectly (through the modification of the soil). Topographic heterogeneity also had significant effects on the soil variation and the diversity of the sub-canopy and shrub layers. Finally our results indicate that the influence of canopy composition on the diversity of the rest of forest layers is indirect and positive, suggesting that the dominant competitor is the main factor limiting diversity. In conclusion, we have found strong evidence that the dominant species of the canopy can influence, both directly and indirectly, the diversity of the different vertical forest layers. Patterns of diversity in forests are driven by a multiplicity of factors that are inherently related.
Pigments and species composition of natural phytoplankton populations: effect on the absorption spectra

Data from three cruises (Arabesque 1 and 2 cruises in the Arabian Sea and the Vancouver Island cruise) were examined to assess the importance of species composition and accessory pigments in modifying specific absorption coefficients. The three cruises differed widely in their phytoplankton assemblages with small cells dominating the Arabesque 2 cruise and large diatoms the Vancouver Island cruise. Absorption spectra from each cruise were decomposed into 13 Gaussian bands repre- senting absorption by the major chlorophylls and accessory pigments. The maximum specific peak height (p£) for each Gaussian band was obtained by regressing Gaussian peak heights against the concentration of the pigment responsible for the absorption band. This relationship was generally non-linear and was fitted with a rectangular hyperbolic function. Changes in the maximum specific peak heights between cruises reflect changes in the packaging effect, which were most apparent at Gaussian bands of high absorption (400-490 nm), but were close to zero at the Gaussian band centered around 623 nm, associated with chlorophyll a (Chi a). The maximum specific peak height of this Gaussian band, p£(623), may be used to obtain reliable estimates of Chi a for any phytoplankton assemblage, unaffected by variations caused by the package effect. Comparing the Arabesque 2 peak heights with the Vancouver data, an apparent flattening effect of 0.42 at 440 nm and 0.62 at 676 nm was found for the Vancouver data relative to the Arabesque 2 data (assuming a zero flattening effect for the latter). Multiple linear regression analysis suggested that 29-42% of the variability in the specific absorption coefficient of phytoplankton at 440 nm was due to changes in pigment composi- tion, while the remaining 58-71% was due to changes in the package effect. An inverse relationship was found between the proportion of non-photosynthetic pigments (NPC) and ambient Chi a concen- tration, suggesting that small cells (generally found in oligotrophic waters) had higher proportions of photoprotective pigments.
Digestion, Intake and Live Weight Changes of Horro Lambs Fed Vetch (Lathyrus sativus) Haulm Basal Diet Supplemented with Sole Wheat Bran, Acacia albida Leaf Meal or Their Mixture

2 Abstract: Twenty five yearling male Horro lambs with initial body weights (IBW) of 23.14±2.45 kg (mean±SD) were used to determine effect of supplementation of wheat bran (WB), Acacia albida leaf meal (AA) or their mixture on nutrient digestibility, feed intake and growth performance of yearling Horro lambs fed a basal diet of vetch (Lathyrus sativus) haulm (VH). Animals were blocked into 5 based on IBW and were randomly assigned to treatments. Treatments were ad libitum feeding of VH either without supplement (T1) or with daily supplement of 300 g DM of sole WB (T2), sole AA (T5), or mixture of the two at 2:1 (T3) or 1:2 (T4) ratios of WB:AA. The study had 7 days digestibility and 84 days feeding trial. The VH, WB and AA had crude protein (CP) contents of 6.5, 16.0 and 19.5%, respectively. Supplementation did not impact (P > 0.05) dry matter (DM), neutral detergent fiber and acid detergent fiber digestibility but significant increased (P 0.05). Positive and significant (r=0.82, P < 0.05) correlation was observed between ADG and CP digestibility. This relationship might have caused growth performance differences among treatments.
La méthode PICT (Pollution-Induced Community Tolerance) appliquée aux communautés algales : intérêt comme outil de diagnose et d'évaluation du risque écotoxicologique en milieu aquatique

Pour caracteriser l'etat d'un ecosysteme aquatique contamine par des toxiques il est necessaire de developper des methodes d'evaluation des impacts ecotoxicologiques, basees a la fois sur l'etude de reponses physiologiques et sur la structure des communautes vivant dans cet ecosysteme. La methode PICT (Pollution-Induced Community Tolerance) proposee par Blanck et al. (1988), repond a ces deux criteres. Elle est fondee sur l'hypothese qu'une communaute biologique naturelle est constituee de differents «composants» ayant des sensibilites variables vis-a-vis d'un toxique donne. Ainsi, suite a une exposition a un toxique, les organismes les plus sensibles ne sont plus concurrentiels et sont remplaces par des organismes plus tolerants. La communaute resultante presente alors une tolerance vis-a-vis du toxique, superieure a celle observee pour une communaute semblable mais n'ayant pas connu de pression de selection par ce toxique. Cette difference de reponse peut donner une indication sur l'etat de pollution des milieux dans lesquels ont ete echantillonnees differentes communautes. Le choix du test physiologique pour evaluer la tolerance de la communaute est fondamental car la reponse depend d'une part, du mode d'action du toxique et d'autre part, des mecanismes a l'origine de la tolerance de la communaute. Il existe peu d'outils de bioevaluation des milieux naturels soumis a des contaminations toxiques, et cette methode merite donc d'etre developpee. Des travaux appliquant la methode PICT a des communautes variees et dans divers milieux, permettraient de valider la methode et de resoudre certains problemes, quant a la detection de la tolerance. Le developpement de methodologies nouvelles pour caracteriser la structure et la tolerance des communautes etudiees est fondamental pour progresser dans nos connaissances sur le risque ecotoxicologique.
Deletion of the Laminin α4 Chain Leads to Impaired Microvessel Maturation

ABSTRACT The laminin α4 chain, a component of laminin-8 and -9, is expressed in basement membranes, such as those beneath endothelia, the perineurium of peripheral nerves, and around developing muscle fibers. Laminin α4-null mice presented with hemorrhages during the embryonic and neonatal period and had extensive bleeding and deterioration of microvessel growth in experimental angiogenesis, as well as mild locomotion defects. Histological examination of newborn mice revealed delayed deposition of type IV collagen and nidogen into capillary basement membranes, and electron microscopy showed discontinuities in the lamina densa. The results demonstrate a central role for the laminin α4 chain in microvessel growth and, in the absence of other laminin α chains, in the composition of endothelial basement membranes.
Effective PCR Systems for Rapid Identification of Human Papillomaviruses (HPVS)

ABSTRACT The main approaches for rapid and precise identification of human papillomaviruses (HPVs) are molecular virology techniques. We have adapted effective polymerase chain reaction (PCR) systems that successfully identify numerous clinically significant HPV types: 6, 11, 16, 18, 31, 33, 39, 40, 42, 45, 51–59, 66, 68. Standard (uniplex) and multiplex variants of PCR were applied in our laboratory to identify HPVs by direct amplification of specific viral sequences in cervical scrapes. Introduction of the molecular virology techniques as PCR in the routine activity of virology labs increases the opportunity for objective estimate of the individual carcinogenic risk and promotes the quality of treatment approaches.
Effect of the Biological Control Agent Neoseiulus californicus (Acari: Phytoseiidae) on Arthropod Community Structure in North Florida Strawberry Fields

Abstract Field experiments were conducted during the 2006-2007 growing season to determine the effect of the predatory mite, Neoseiulus californicus (McGregor) on arthropod community structure when released as a biological control agent for the twospotted spider mite, Tetranychus urticae Koch, in north Florida strawberries (Fragaria × ananassa Duchesne). Releases of N. californicus were conducted at approximately 1-month intervals from Dec 2006 to Feb 2007 to compare effects of predator release times on arthropod community structure. Evaluations of community structure were conducted 3 times during the growing season. The Shannon-Weaver index of diversity was used to quantify differences among release and non-release plots. Our results indicate that the release of N. californicus does not affect the arthropod diversity in the strawberry system studied. The generalist feeding behavior of N. californicus, coupled with a high level of richness and diversity in the strawberry ecosystem, may diffuse the measurable effect of N. californicus releases on the arthropod community structure. This makes N. californicus a desirable biological control agent for management of twospotted spider mite in strawberries while preserving arthropod diversity.