bluuebunny/crossref_metadata_2025 huggingface dataset:
Complete genome sequence of Thermus brockianus GE-1 reveals key enzymes of xylan/xylose metabolism
Authors: Schäfers Christian , Blank Saskia , Wiebusch Sigrid , Elleuche Skander , Antranikian Garabed
Published: February 2017

Thermus brockianus strain GE-1 is a thermophilic, Gram-negative, rod-shaped and non-motile bacterium that was isolated from the Geysir geothermal area, Iceland. Like other thermophiles, Thermus species are often used as model organisms to understand the mechanism of action of extremozymes, especially focusing on their heat-activity and thermostability. Genome-specific features of T. brockianus GE-1 and their properties further help to explain processes of the adaption of extremophiles at elevated temperatures. Here we analyze the first whole genome sequence of T. brockianus strain GE-1. Insights of the genome sequence and the methodologies that were applied during de novo assembly and annotation are given in detail. The finished genome shows a phred quality value of QV50. The complete genome size is 2.38 Mb, comprising the chromosome (2,035,182 bp), the megaplasmid pTB1 (342,792 bp) and the smaller plasmid pTB2 (10,299 bp). Gene prediction revealed 2,511 genes in total, including 2,458 protein-encoding genes, 53 RNA and 66 pseudo genes. A unique genomic region on megaplasmid pTB1 was identified encoding key enzymes for xylan depolymerization and xylose metabolism. This is in agreement with the growth experiments in which xylan is utilized as sole source of carbon. Accordingly, we identified sequences encoding the xylanase Xyn10, an endoglucanase, the membrane ABC sugar transporter XylH, the xylose-binding protein XylF, the xylose isomerase XylA catalyzing the first step of xylose metabolism and the xylulokinase XylB, responsible for the second step of xylose metabolism. Our data indicate that an ancestor of T. brockianus obtained the ability to use xylose as alternative carbon source by horizontal gene transfer.
Association between mental health-related stigma and active help-seeking: Systematic review and meta-analysis
Authors: Schnyder Nina , Panczak Radoslaw , Groth Nicola , Schultze-Lutter Frauke
Published: February 2017

Background

Mental disorders create high individual and societal costs and burden, partly because help-seeking is often delayed or completely avoided. Stigma related to mental disorders or mental health services is regarded as a main reason for insufficient help-seeking.

Aims

To estimate the impact of four stigma types (help-seeking attitudes and personal, self and perceived public stigma) on active help-seeking in the general population.

Method

A systematic review of three electronic databases was followed by random effect meta-analyses according to the stigma types.

Results

Twenty-seven studies fulfilled eligibility criteria. Participants' own negative attitudes towards mental health help-seeking (OR = 0.80, 95% CI 0.73–0.88) and their stigmatising attitudes towards people with a mental illness (OR = 0.82, 95% CI 0.69–0.98) were associated with less active help-seeking. Self-stigma showed insignificant association (OR = 0.88, 95% CI 0.76–1.03), whereas perceived public stigma was not associated.

Conclusions

Personal attitudes towards mental illness or help-seeking are associated with active help-seeking for mental problems. Campaigns promoting help-seeking and fighting mental illness-related stigma should target these personal attitudes rather than broad public opinion.
Miconazole protects blood vessels from matrix metalloproteinase 9-dependent rupture and hemorrhage
Authors: Yang Ran , Zhang Yunpei , Huang Dandan , Luo Xiao , Zhang Liangren , Zhu Xiaojun , Zhang Xiaolin , Liu Zhenming , Han Jingyan , Xiong Jing-Wei
Published: February 2017

Hemorrhagic stroke accounts for 10-15% of all strokes and is strongly associated with mortality and morbidity worldwide, but its prevention and therapeutic interventions remain a major challenge. Here, we report the identification of miconazole as a hemorrhagic suppressor by a small-molecule screen in zebrafish. We found that a hypomorphic mutant fn40a, one of known β-pix mutant alleles in zebrafish, had the major symptoms of brain hemorrhage, vessel rupture, and inflammation as those in hemorrhagic stroke patients. A small-molecule screen with mutant embryos identified anti-fungal drug miconazole as a potent hemorrhagic suppressor. Miconazole inhibited both brain hemorrhages in zebrafish and mesenteric hemorrhages in rats by decreasing matrix metalloproteinase 9 (mmp9)-dependent vessel rupture. Mechanistically, miconazole down-regulated the levels of pErk and Mmp9 to protect vascular integrity in fn40a mutants. Therefore, our findings have demonstrated that miconazole protects blood vessels from hemorrhages by down-regulating the pERK-MMP9 axis from zebrafish to mammals and have shed light on the potential of phenotype-based screens in zebrafish for the discovery of new drug candidates and chemical probes for hemorrhagic stroke.
Mitochondrial dynamics in neuronal injury, development and plasticity
Authors: Flippo Kyle H. , Strack Stefan
Published: February 2017

Mitochondria fulfill numerous cellular functions including ATP production, Ca2+ buffering, neurotransmitter synthesis and degradation, ROS production and sequestration, apoptosis and intermediate metabolism. Mitochondrial dynamics, a collective term for the processes of mitochondrial fission, fusion and transport, governs mitochondrial function and localization within the cell. Correct balance of mitochondrial dynamics is especially important in neurons as mutations in fission and fusion enzymes cause peripheral neuropathies and impaired development of the nervous system in humans. Regulation of mitochondrial dynamics is partly accomplished through post-translational modification of mitochondrial fission and fusion enzymes, in turn influencing mitochondrial bioenergetics and transport. The importance of post-translational regulation is highlighted by numerous neurodegenerative disorders associated with post-translational modification of the mitochondrial fission enzyme Drp1. Not surprisingly, mitochondrial dynamics also play an important physiological role in the development of the nervous system and synaptic plasticity. Here, we highlight recent findings underlying the mechanisms and regulation of mitochondrial dynamics in relation to neurological disease, as well as the development and plasticity of the nervous system.
Caveolae provide a specialized membrane environment for respiratory syncytial virus assembly
Authors: Ludwig Alexander , Nguyen Tra Huong , Leong Daniel , Ravi Laxmi Iyer , Tan Boon Huan , Sandin Sara , Sugrue Richard J.
Published: February 2017

Respiratory syncytial virus (RSV) is an enveloped virus that assembles into filamentous virus particles on the surface of infected cells. Morphogenesis of RSV is dependent upon cholesterol-rich (lipid raft) membrane microdomains, but the specific role of individual raft molecules in RSV assembly is not well defined. Here, we show that RSV morphogenesis occurs within caveolar membranes and that both caveolin-1 and cavin-1 (also known as PTRF), the two major structural and functional components of caveolae, are actively recruited to and incorporated into the RSV envelope. The recruitment of caveolae occurred just prior to the initiation of RSV filament assembly, and was dependent upon an intact actin network as well as a direct physical interaction between caveolin-1 and the viral G protein. Moreover, cavin-1 protein levels were significantly increased in RSV-infected cells, leading to a virus-induced change in the stoichiometry and biophysical properties of the caveolar coat complex. Our data indicate that RSV exploits caveolae for its assembly, and we propose that the incorporation of caveolae into the virus contributes to defining the biological properties of the RSV envelope.
Does the membrane pacemaker theory of metabolism explain the size dependence of metabolic rate in marine mussels?
Authors: Sukhotin Alexey , Fokina Natalia , Ruokolainen Tatiana , Bock Christian , Pörtner Hans-Otto , Lannig Gisela
Published: February 2017

According to the Membrane Pacemaker Theory of metabolism (MPT) allometric scaling of metabolic rate in animals is determined by the composition of cellular and mitochondrial membranes that changes with body size in a predictable manner. MPT has been elaborated from interspecific comparisons in mammals. It projects that the degree of unsaturation of membrane phospholipids decreases in larger organisms, thereby lowering ion permeability of the membranes and making cellular and thus whole animal metabolism more efficient. Here we tested the applicability of the MPT to a marine ectotherm, the mussel Mytilus edulis at the intraspecific level. We determined effects of body mass on whole organism, tissue and cellular oxygen consumption rates, on heart rate, metabolic enzyme activities and on the lipid composition of membranes. In line with allometric patterns the organismal functions and processes such as heart rate, whole animal respiration rate and phospholipid contents showed a mass-dependent decline. However, the allometry of tissue and cellular respiration and activity of metabolic enzymes was poor; fatty acid unsaturation of membrane phospholipids of gill tissue was independent of animal size. It is thus conceivable that most of the metabolic allometry observed at the organismal level is determined by systemic functions. These whole organism patterns may be supported by energy savings associated with growing cell size but not by structural changes in membranes. Overall, the set of processes contributing to metabolic allometry in ectotherms may differ from that operative in mammals and birds, with a reduced involvement of the mechanisms proposed by the MPT.
Modeling Hydrologic Response to Land Use and Climate Change in the Krueng Jreu Sub Watershed of Aceh Besar
Authors: Ferijal Teuku , Bachtiar Mustafril , Jayanti Dewi Sri , Jafaruddin Dahlan
Published: February 2017

Soil and Water Assessment Tool (SWAT) model was used to simulate impact of landuse and climate change on water resources in Krueng Jreu subwatershed located in Aceh Province – Indonesia. The subwatershed is a primary source of water to irrigated 233.52 km2 paddy field area through a surface irrigation system. The model performance was considerably good in predicting streamflow. The coefficients of determination varied between 0.58 and 0.72, while the Nash-Sutcliffe coefficients (ENS) ranged between 0.65-0.72 and the percentage bias were in the range of -0.36 to 2.30. Scenarios were applied to the best fit model to evaluate watershed responses to land use and climate changes. The model predicted increases in both runoff and water yield by 1% and 0.1% respectively as the result of increasing 15% settlement area. When all agricultural land within subwatershed converted to forest, water yield would increase by 1% during dry period and runoff contribution would decrease by 5%. Increases in surface flow by 23.6% and water yield by 15.1% were found under scenario of increasing 10% of daily precipitation. Increasing in evapotranspiration caused by an increase of 1.5⁰C in daily air temperature would decrease surface flow and water yield by 0.8% and 1.3%, respectively. Combination scenarios of changes in daily temperature and precipitation would increase evapotranspiration rate, annual water yield and runoff contribution.
Strategy of Research Institutes in Construction in Shaping the Research Area
Authors: Kruk Marcin M.
Published: February 2017

The model concept, as presented in this paper, is an original solution created by the author, and can be used as a proposal to build an innovative mechanism to increase the effectiveness of programming and implementation of the development policy, and improve the quality of functioning of a building research institute. The development management system included in this model is a set of actions targeting at the effective use of human and tangible resources, undertaken in a coordinated manner and leading to the achievement of previously established objectives. The market activity of building research institutes is directly or indirectly involved in construction projects, which translates into market mechanisms, such as innovation and competitiveness. In addition, it indicates the participation of a building research institute in the engineering of construction projects as a key to entrepreneurship and implementations.
Problems with Assessing Safety of Vulnerable Road Users Based on Traffic Accident Data
Authors: Olszewski P. , Osińska B. , Szagała P. , Skoczyński P. , Zielińska A.
Published: February 2017

The problem of poor quality of traffic accident data assembled in national databases has been addressed in European project InDeV. Vulnerable road users (pedestrians, cyclists, motorcyclists and moped riders) are especially affected by underreporting of accidents and misreporting of injury severity. Analyses of data from the European CARE database shows differences between countries in accident number trends as well as in fatality and injury rates which are difficult to explain. A survey of InDeV project partners from 7 EU countries helped to identify differences in their countries in accident and injury definitions as well as in reporting and data checking procedures. Measures to improve the quality of accident data are proposed such as including pedestrian falls in accident statistics, precisely defining minimum injury and combining police accident records with hospital data.
Influence of Game Evolution and the Phase of Competition on Temporal Game Structure in High-Level Table Tennis Tournaments
Authors: Leite Jorge Vieira de Mello , Barbieri Fabio Augusto , Miyagi Willian , Malta Elvis de Souza , Zagatto Alessandro Moura
Published: February 2017

The aims of this study were: a) to investigate the game temporal structure in high-level table tennis competitions; b) to verify the influence of game evolution in international competitions from 2009 to 2012 (World Table Tennis Championships and the Olympic Games) on game temporal structure; c) to compare game temporal structure according to the phase of competition. Comparisons between the three international tournaments demonstrated that rally duration decreased significantly (p < 0.05) during the analyzed period (2009-2012), while the rest time increased (p < 0.05) from 2009 to 2011, but decreased (p < 0.05) from 2011 to 2012. In the competition phase analysis, it was found that rally duration decreased (p < 0.05) in the quarterfinals in relation to the semifinals and finals, while the rest time increased (p < 0.05) from the quarterfinals to semifinals and finals. Based on our findings and previous literature, we concluded that the performance level, game evolution and the competition phase influenced the game temporal structure of table tennis, considering longer rest periods adopted by elite athletes in relation to non-elite athletes, the reduction in rally duration and an increase in rest time over the 2009-2012 period and through the competition phases (quarterfinals to finals).
A Multidisciplinary Investigation of the Effects of Competitive State Anxiety on Serve Kinematics in Table Tennis
Authors: Ngo Vuong , Richards Hugh , Kondric Miran
Published: February 2017

Displays of anxiety in table tennis were assessed through subjective (a self-report questionnaire), physiological (heart-rate variability) and kinematic variables. Using a within-group crossover design, 9 university-level table tennis players completed a series of serves under low- and high-anxiety conditions. Anxiety manipulation was achieved through the introduction of a national standard table tennis player, known to the participants, to receive serves in the high-anxiety condition, whilst serves were received by no opponent in the low-anxiety condition. Automated motion capture systems consisting of high-speed 3D motion cameras and analytical software (QUALISYS) determined the subject’s movement kinematics: bat face angle (degrees) and serve routine duration (s). Self-reported state anxiety (MRF-Likert) and heart rate measurements were collected to examine changes between conditions. Contrary to the hypothesis, bat face angles did not change significantly between anxiety conditions (F (1.8) = 2.791, p = 0.133) and movement times were faster in the high-anxiety condition. In light of these findings, research into other facets of movement behaviour must be analysed to gain further understanding of the effects of anxiety on performance, which remain unclear.
Smoking cessation for free: outcomes of a study of three Romanian clinics
Authors: Trofor Antigona Carmen , Man Milena Adina , Marginean Corina , Dumitru Filipeanu , Trofor Letitia
Published: February 2017

In 2007, Romania implemented a national program for smoking cessation, providing medication and counseling, entirely for free. The present study focuses on the results of the program among participating smokers treated in three smoking cessation centers from three main cities of Romania: Iasi, Targu Mures and Cluj.

Telephone interviews of 832 subjects from three databases of the Romanian cessation clinics of Iasi, Cluj and Targu Mures cities were conducted. These interviews were based on a standard Romanian guideline follow-up questionnaire.

At 3 months follow up, abstinence was quite high (53.4%); at 12 months post quit date the study found 18.6% still abstinent subjects. More severely addicted smokers have quit with varenicline and the most difficult category of
patients was represented by heavy smokers with respiratory co-morbidities. 61.5% of smokers and 97.2% of non-smokers were willing to receive relapse prevention counseling. Many subjects achieved a long duration partial abstinence (154 days ± 180 SD abstinence days).

This is the first study in Romanian smoking cessation centers to analyze the long term impact of fully reimbursed smoking cessation, covering three months pharmacotherapy and counseling. Providing smoking cessation for free had a positive long term impact on program participants.
Tensile Behavior and Microstructural Evolution of the Polycrystalline Nickel-Based Superalloy Applied in Turbine Disk
Authors: Shen Xiuli , Dong Shaojing , Chen Zhiying
Published: February 2017

In the present study, the mechanical behaviors and microstructural evolution of the nickel-based superalloy FGH97 at different temperatures and strain rates were studied. First, the tensile tests were conducted at temperatures of 20 °C, 450 °C and 700 °C, respectively, at two specified strain rates of 0.00025 s
Las afueras de la justicia
Authors: Ortega Ruiz Óscar
Published: February 2017

El presente trabajo pretende ser una reflexión acerca de las disfunciones visibles del concepto de justicia, que es capaz de configurar realidades urbanas tangibles, pero a la vez, cargadas de ideología. También pretende incidir en la idea de que la ciudad, y el territorio en general, no son realidades que se explican por sí mismas sin más implicaciones, sino que la forma en la que organizamos el espacio y el modo en que nos relacionamos entre nosotros son dos aspectos de una realidad única. Así pues, la relación que mantenemos con el territorio se encuentra también en el fondo de nuestra idea de justicia.
DIAGNOSIS OF ENDOCRINE DISEASE: Endocrine late-effects of childhood cancer and its treatments
Authors: Chemaitilly Wassim , Cohen Laurie E
Published: February 2017

Endocrine complications are frequently observed in childhood cancer survivors (CCS). One of two CCS will experience at least one endocrine complication during the course of his/her lifespan, most commonly as a late-effect of cancer treatments, especially radiotherapy and alkylating agent chemotherapy. Endocrine late-effects include impairments of the hypothalamus/pituitary, thyroid and gonads, as well as decreased bone mineral density and metabolic derangements leading to obesity and/or diabetes mellitus. A systematic approach where CCS are screened for endocrine late-effects based on their cancer history and treatment exposures may improve health outcomes by allowing the early diagnosis and treatment of these complications.
Microencapsulation of Oil in Organically Modified Silicate Glass by Sol-Gel Process
Authors: Seok Sang I. , Ahn Bok Y. , Kim Joo H. , Suh Tae S.
Published: February 2017

Microencapsulation provides protection and sustained or controlled release of active core agents. The sol-gel process has opened up a new way for encapsulating oil droplets within an inorganic capsule. Silica microcapsules were prepared in silica precursor-oil mixtures/NH4OH water microemulsion system. In this step, the formation of capsules incorporating oil depended strongly on the type of silica precursor. A spherical silica microsheres were only obtained when oligomer, synthesized by the hydrolysis and co-condensation of equiweight of TEOS (tetraethylorthosilicate) and MTMS (methyltrimethoxysilane), was used as the wall materials. The particles size of silica microcapsules was in the range of 1 ∼ 100 μm, depending on processing parameter such as a shear rate and O/W ratio etc. In controlled release system, the shell porosity is important to give an appropriate permeability, corresponding to the release rate. The pore structure, responsible for permeability, was adjusted by doping alkyl silane, and investigated with nitrogen sorption measurement.
Gas phase deposition of hybrid coatings
Authors: Alcott G.R. , Linden J.L. , Sanden M.C.M. van de
Published: February 2017

A new approach for depositing polymer/inorganic hybrid films using gas phase deposition technology has been developed and is the focus of this work. These films combine the high hardness and scratch resistance of inorganic SiO2 films with properties such as flexibility and toughness usually associated with softer polymeric films. The gas phase deposition process eliminates several of the key problems associated with the traditional wet chemical preparation of hybrid materials namely, a reduction in process steps and the elimination of harmful solvents from the process. In addition, gas phase deposition processes generate inherently denser materials then wet chemical processes eliminating post deposition annealing procedures that may damage the substrate. In this study, films are deposited on polycarbonate (PC) and silicon substrates using a novel plasma reactor. In this system, two gas streams, activated by separate plasmas, are combined to form a hybrid thin film.

Films are grown from the precursor Tetraethoxysilane (TEOS), 1,2 Bis(trimethylsiloxy)ethane (TMSE) and Tripropylsilane (TPS) evaluated with respect to mechanical, chemical and optical properties, using scratch resistance (Taber abrasion), Methyl Ethyl Ketone (MEK), adhesion and visible transmission measurements. Structural and chemical properties of the deposited films are determined using IR spectroscopic measurements coupled with spectroscopic ellipsometry. The process chemistry and mechanisms are studied using in situ mass spectroscopy, in situ FTIR and spectroscopic ellipsometry.
Large- Scale ab initio Simulations of Fe-doped SrTiO3 Perovskites
Authors: Evarestov R.A. , Eglitis R.I. , Piskunov S. , Kotomin E. A. , Borstel G.
Published: February 2017

Using the Unrestricted Hartree-Fock method and supercells containing up to 160 atoms, we calculated the energy level positions in the gap and atomic geometry for the Fe4+ impurity substituting for a host Ti atom in SrTiO3. In agreement with experiment, the high spin (S=2) state is much lower in energy than the zero-spin state. The energy level positions strongly depend on the asymmetric displacement mode of the six nearest O ions which is a combination of the Jahn-Teller and breathing modes. A considerable covalent bonding between the Fe ion and four nearest O ions takes place.
Model Compound Vulcanization And IGC As Prediction Tools In Carbon Black Effect On Vulcanization
Authors: Vidal-Escales E. , Diago M.P. , Borrós S.
Published: February 2017

The influence of carbon black (CB) in a rubber formulation can be observed during the vulcanization process. However, looking through literature there seems to be a lack of information related to the role of CBs in vulcanization reaction. The present work is focused on the application of Model Compound Vulcanization (MCV) approach and Inverse Gas Chromatography (IGC) to predict the role of carbon black on vulcanization.

Squalene was chosen as the model molecule of natural rubber to undergo the vulcanization in the presence of carbon black. This methodology gives rise to several advantages. On one hand, the model allows following the accelerator, vulcanization intermediate compounds, and even the crosslinked model molecule. Moreover, the similarity between the model and the polymer chain allows further extrapolation to discover the real sample's performance. In order to complete the information required IGC analysis was used. IGC has been performed using both dispersive and specific probes to elucidate a wide range of CB surface active sites.

The application of this prediction tool to special grades revealed different effects that have been verified with real formulations in both cases.
TEKNIK PENAMPUNGAN IKAN PATIN (Pangasius spp) HASIL TANGKAPAN NELAYAN DAS MUSI BAGIAN HILIR SUMATERA SELATAN
Authors: Burnawi Burnawi
Published: February 2017

Abstrak bisa dilihat di Lampiran
PENGENDALIAN SUMBERDAYA IKAN DI ESTUARIA SUNGAI MUSI
Authors: Prianto Eko , Kaban Siswanta , Aprianti Solekha , Jhonnerie Romie
Published: February 2017

Perairan estuaria Sungai Musi merupakan daerah penangkapan ikan yang potensial di Provinsi Sumatera Selatan, sehingga di wilayah ini terjadi aktifitas penangkapan yang cukup padat. Akibatnya terjadi tekanan yang cukup besar terhadap sumberdaya ikan di kawasan ini. Fungsi ekologi estuaria sebagai spawning ground dan nursery ground mulai mengalami gangguan akibat intensitas penangkapan yang besar. Beberapa alat tangkap ikan yang tidak selektif beroperasi dalam jumlah banyak sehingga menyebabkan penurunan terhadap stok ikan. Akibatnya konflik pemanfaatan ruang sering terjadi antar sesama nelayan atau pengguna lainnya. Seperti konflik jaring trawl dengan gillnet dan pancing rawai dan konflik nelayan tuguk dengan pengemudi kapal. Untuk menyelesaikan konflik di atas dan menjaga kelestarian sumberdaya ikan di estuaria Sungai Musi, beberapa langkah pengendalian yang direkomendasikan adalah melakukan pengaturan penangkapan ikan, melakukan sosialisasi peraturan perikanan kepada masyarakat, meningkatkan kapasitas kelembagaan pengelolaan perikanan, pelarangan penggunaan alat tangkap tertentu, dan memberikan bantuan modal usaha kepada nelayan.Estuary of Musi River is a potential fishing areas in South Sumatra Province, so that in this region occur fairly heavy fishing activity. The consequence is a large pressure on fish resources of this region. The ecological functions of estuaries as nursery ground and spawning ground, begin to experience problems due to the large fishing intensity. Some fishing gear that does not selectively operate in large quantities resulted in a decline of fish stocks. As the result spatial use conflicts often occur between fishermen or other user, as examples is the conflict between trawl fishing with gill nets and longline operator and the operator of driver tuguk ship. To resolve the above conflict and preserve the fish resources in the estuary of the River Musi, a few recomendation that must be addressed several step must doing fisheries regulations to disseminate to the public, enhance institutional capacity for fisheries management, ban the use of certain fishing gear and provide venture capital assistance to fishermen.
PENGELOLAAN SUMBER DAYA IKAN DI DANAU LIMBOTO, GORONTALO
Authors: Krismono Krismono , Kartamihardja Endi Setiadi
Published: February 2017

Danau Limboto termasuk danau tipe rawa terletak di Provinsi Gorontalodengan luas 2.900 ha dan kedalaman antara 1-5 m. Sumber air berasal dari 20 sungai dan empat sungai di antaranya merupakan sungai besar, yaitu Sungai Bionga, Sungai Molalahu, Sungai Alo-pahu, dan Sungai Meluopo. Air Danau Limboto dikeluarkan melalui Sungai Topadu yang bermuara di Teluk Tomini dengan jarak sekitar 10 km. Masalah Danau Limboto adalah eutrofikasi dan sedimentasi, eutrofikasi ditandai dengan pertumbuhan gulma air eceng gondok yang berkembang terus dari tahun ke tahun. Pada tahun 1994 tumbuhan air menutupi sekitar 35%, tahun 2004 sampai 40% dan tahun 2008 sekitar 40-60% luas permukaan air. Struktur komunitas ikan di Danau Limboto didominansi oleh ikan karnívora dan omnivora sehingga hanya sebagian kecil yang memanfaatkan eceng gondok sebagai makanannya. Sekitar 1.500 kepala keluarga hidup di selingkar Danau Limboto dengan mata pencaharian pembudidaya ikan dan nelayan. Beberapa alat tangkap yang merusak sumber daya ikan antara lain dudayaho, strom, dan bibilo. Untuk menjaga kelestarian sumber daya ikan perlu dilakukan langkah-langkah pengelolaan secara berkelanjutan meliputi rehabilitasi habitat danau melalui pengendalian eceng gondok, penentuan tata ruang perairan danau, revitalisasi Peraturan Daerah Kabupaten Gorontalo Nomor 67 Tahun 2000 mengenai pelarangan penggunaan alat tangkap yang merusak sumber daya ikan, revitalisasi kelembagaan nelayan,dan pembudidaya ikan.Lake Limboto is classified as swamp lake types located in the Province ofGorontalo, has a water surface area of 2,900 ha and water depth range between 1-5 m. The source of water comes from 20 rivers; among others are four major rivers, namely Bionga, Molalahu, Alo-Pahu, and Meluopo Rivers. The outlet of the lake waters is Topadu River which empties into Tomini Bay about 15 km distance from the lake. The main problem of the lake is eutrofication and sedimentation which the eutrofication indicated by the nuisance growth of aquatic weeds especially water hyacinth. In 1994, the water hyacinth covered the water surface area of 35%, in 2004 to be 40% and in 2008 approximately covered 40- 60% of the total water surface area of the lake. Structure of fish communities is dominated by carnivorous and omnivorous fish so that only a small part water hyacinth utilized as fish feed. Lake Limboto support around 1,500 families live surrounding of the lake that their livelihoods as fish farmers and fishermen. Some fishing gears such as scope net of fine mesh size, electric fishing and aquatic plant fish aggregating device has destructed the fish resources. To maintain thesustainability of fish resources some management measures i.e. habitatrehabilitation of the lake through water hyacinth control, zoning of the lake, revitalization of Gorontalo District Act Nomor 67 year 2000 about prohibition on the use of destructive fishing gears; and development of fisheries co-management should be done.
O psicodrama pedagógico: estratégia para a humanização das relações de trabalho
Authors: Saeki Toyoko , Corrêa Adriana Kátia , Souza Maria Conceição Bernardo de Mello e , Zanetti Maria Lúcia
Published: February 2017

Este estudo teve como objetivo analisar a utilização do psicodrama pedagógico como estratégia para refletir sobre a humanização do atendimento em saúde. Foram realizados cinco encontros, de maio a junho de 2000. As temáticas desenvolvidas foram: o contexto de trabalho em urgência e a atualização da referência pessoal e profissional, individual e grupai; reconhecimento do usuário. Tendo em vista a necessidade de se repensar a humanização do atendimento em emergência, consideramos que a abordagem psicodramática despertou o trabalhador para o compromisso e responsabilização com o trabalho.
As políticas de saúde e a humanização da assistência
Authors: Rizzotto Maria Lúcia Frizon
Published: February 2017

Este ensaio constitui-se em uma reflexão sobre a temática da 63.Âª Semana Brasileira de Enfermagem, elaborado inicialmente como conferência a ser ministrada em evento comemorativo da profissão. Relaciona o tema central: "humanização e trabalho: razão e sentido na Enfermagem" com as atuais políticas de saúde implementadas em nosso país. Discute as conseqüências dessas políticas na assistência à saúde e, por fim, aborda a experiência do acolhimento como estratégia de humanização dessa assistência.
A (re)configuração do campo da enfermagem durante o estado novo (1937-1945)
Authors: Barreira Leda de Alencar , Baptista Suely de Souza
Published: February 2017

O objeto do estudo são as mudanças ocorridas na enfermagem no período denominado Estado Novo. OBJETIVOS: analisar o panorama da enfermagem na capital federal no período e discutir os efeitos da influência da Igreja católica e das enfermeiras do governo americano na enfermagem brasileira. FONTES UTILIZADAS: documentos escritos do Centro de Documentação da Escola de Enfermagem Anna Nery/UFRJ, bem como a literatura existente sobre a temática. A interpretação dos achados apoiou-se na Teoria do Mundo Social de Pierre Bourdieu. Os resultados evidenciaram profundas alterações, em termos de formação profissional, mercado de trabalho e institucionalização do exercício da enfermagem, as quais ocorreram no bojo de reformas educacionais e sanitárias, em meio a um crescente poder da Igreja católica e da forte influência norte-americana no contexto da segunda guerra. Este jogo de forças determinou a reconfiguração da identidade da enfermeira brasileira e do próprio campo da enfermagem.
A REBEn no contexto da história da enfermagem brasileira: a importância da memória de Dª Glete de Alcântara
Authors: Mendes Isabel Amélia Costa , Leite Joséte Luzia , Leite Juçara Luzia , Trevizan Maria Auxiliadora
Published: February 2017

O presente trabalho é um estudo de História Social cujo objetivo é recuperar a trajetória profissional de Dª Glete de Alcântara junto à Revista Brasileira de Enfermagem/REBEn(inicialmente Anais de Enfermagem), fundamentando-se na concepção de memória de Maurice Halbwachs e no conceito de geração de Daniel Pécaut. Para tanto, foi necessário contextualizar a formação profissional de Dª Glete de Alcântara na História da Enfermagem Brasileira, destacando a criação da Escola de Enfermagem de Ribeirão Preto da Universidade de São Paulo(EERP/USP). As fontes utilizadas, analisadas em uma perspectiva histórico-crítica, foram os documentos do Centro de Memória da Escola de Enfermagem de Ribeirão Preto e o acervo da ABEn/Brasília, sobretudo os Livros de Atas da Associação e os exemplares dos Anais de Enfermagem/REBEn.
Maurício Tragtenberg: contribuições de um marxista anarquizante para os estudos organizacionais críticos
Authors: Paula Ana Paula Paes de
Published: February 2017

Este artigo analisa as contribuições de Maurício Tragtenberg no campo da crítica da administração. Para tanto, são examinadas suas três principais contribuições para esses estudos, tendo como referência o marxismo anarquizante que permeia seu pensamento: a crítica da burocracia, a crítica das teorias administrativas e a crítica da co-gestão. A intenção é demonstrar que suas críticas estão diretamente relacionadas com a visão anarquista que sustenta seu pensamento libertário e sua defesa da autogestão. Concluindo, avalia-se a atualidade do pensamento de Tragtenberg em um contexto de revival e resgate da utopia anarquista, apontando caminhos para os estudos organizacionais que podem ser realizados de acordo com essa perspectiva.
Aspectos fisiológicos da germinação de sementes de trapoeraba (Commelina benghalensis L.)
Authors: Voll Elemar , Brighenti Alexandre M , Gazziero Dionísio L.P , Adegas Fernando S
Published: February 2017

O experimento foi conduzido com o objetivo de estudar as relações entre níveis de absorção de água, condutividade elétrica e germinação de sementes de trapoeraba (Commelina benghalensis L.). Sementes aéreas e subterrâneas foram embebidas em água por seis, 24 e 48 horas, na temperatura de 20ºC, para determinar a condutividade elétrica. Os tratamentos foram conduzidos em germinador, com ciclo de 14/10 horas de fotoperíodo (luz/escuro), à 30-20ºC, 95% de umidade relativa e luz fluorescente. Foi usado delineamento inteiramente casualizado, com quatro repetições de 100 sementes/caixa plástica. A germinação das sementes aéreas de trapoeraba é menor do que a das sementes subterrâneas. As porcentagens de absorção de água das sementes aéreas ou subterrâneas são semelhantes. A condutividade elétrica é altamente associada aos períodos de embebição nas sementes aéreas e subterrâneas de trapoeraba; também altamente associada à germinação nas sementes aéreas e à absorção de água nas sementes subterrâneas.
Qualidade fisiológica de sementes de milho-doce BR 400 (bt) em função do teor de água na colheita e da temperatura de secagem
Authors: Guiscem Josiane Marlle , Nakagawa João , Zucareli Claudemir
Published: February 2017

O objetivo deste estudo foi avaliar a qualidade fisiológica das sementes de milho-doce em função do teor de água na colheita e da temperatura de secagem em espiga. O experimento foi instalado na área experimental da FCA/Unesp, Botucatu-SP. Utilizou-se a cultivar BR 400 (bt) 'Super doce'. O delineamento experimental empregado foi o de blocos ao acaso com seis repetições, constituindo os tratamentos as épocas de colheitas. As colheitas das espigas foram iniciadas após a maturidade fisiológica; após despalhadas e divididas em duas porções, as espigas foram submetidas a secagem em estufas com circulação forçada nas temperaturas de 30 e 40ºC. Foi utilizada uma testemunha com sementes secadas no campo com 10,1% de teor de água. Foram determinados os teores de água das sementes, inicial e após a secagem, de todas as colheitas. Após a secagem, as espigas foram debulhadas manualmente, as sementes acondicionadas em saco de papel e armazenadas em condições ambientais de laboratório. As avaliações da qualidade fisiológica das sementes (emergência de plântulas no campo, índice de velocidade de emergência, matéria seca de plântulas, germinação, vigor-primeira contagem do teste de germinação, envelhecimento acelerado, teste de frio, condutividade elétrica e teores de Ca, Mg, K e Na lixiviados na solução do teste de condutividade elétrica) foram realizadas antes e após seis meses de armazenamento. As sementes de milho-doce cultivar BR 400 (bt), com teor de água igual ou menor do que 35%, podem ser submetidas à secagem em espiga a temperatura de 30 ou 40ºC, sem perdas significativas em sua qualidade fisiológica.
Testes rápidos para avaliação da qualidade fisiológica de sementes de Citromelo swingle
Authors: Carvalho Jairo Ademir , Von Pinho Édila Villea Resende , Oliveira João Almir , Guimarães Renato Mendes , Bonome Lisandro Tomas
Published: February 2017

O parâmetro mais utilizado para avaliar a qualidade fisiológica de sementes é o teste de germinação. No entanto, sementes de citros apresentam germinação lenta e o teste de germinação pode ser prolongado por até 60 dias. Dessa maneira, surge a necessidade do desenvolvimento de testes rápidos para estimar a viabilidade das sementes. A avaliação da qualidade fisiológica de sementes de citros, por meio de testes rápidos, pode ser considerada como um recurso extremamente útil, para as empresas produtoras de sementes, possibilitando um controle de qualidade mais rápido e eficiente. Desse modo, o objetivo da pesquisa foi adaptar metodologias de testes rápidos, para avaliar a viabilidade de sementes Citromelo swingle em quatro épocas de armazenamento. Foram utilizados os testes de tetrazólio, condutividade elétrica e o do pH do exsudato (fenolfetaleína), enquanto, os testes de emergência das plântulas e de germinação foram usados para a comparação dos resultados. Os testes rápidos para avaliar a viabilidade mostraram-se promissores para o monitoramento da germinação e emergência das plântulas, a partir do terceiro mês de armazenamento e na ausência de sementes dormentes.
Qualidade das sementes de soja produzidas sob manejo com biorregulador
Authors: Albrecht Leandro Paiola , Braccini Alessandro de Lucca e , Scapim Carlos Alberto , Ávila Marizangela Rizzatti , Albrecht Alfredo Junior Paiola , Barbosa Mauro Cezar
Published: February 2017

O objetivo do presente trabalho foi avaliar a qualidade fisiológica e sanitária das sementes, em resposta à aplicação do biorregulador Stimulate® na cultura da soja. Para tanto, sementes de soja da cultivar BRS 246 RR foram semeadas no mês de outubro dos anos agrícolas de 2007/2008 e 2008/2009, no delineamento experimental em blocos completos com os tratamentos casualizados, com quatro repetições. Os tratamentos, arranjados em esquema fatorial, foram compostos pela combinação do tratamento de sementes com o biorregulador (sem e com 0,500 L 100 kg-1 de sementes) e cinco doses do produto (0; 0,125; 0,250; 0,375 e 0,500 L ha-1) aplicadas via foliar, em dois estádios de desenvolvimento da cultura (V5 ou R3). O uso do biorregulador Stimulate® altera positivamente qualidade das sementes, sobretudo quando as aplicações foliares ocorrem no estádio V5.
O futuro da educação em uma sociedade do conhecimento: o argumento radical em defesa de um currículo centrado em disciplinas
Authors: Young Michael F. D
Published: February 2017

O texto focaliza o papel, na educação, do conhecimento em si. Argumenta que, para se dar um sentido sério à importância da educação, é fundamental tornar a questão do conhecimento foco central das análises no campo da educação, o que requer o desenvolvimento de uma abordagem do currículo baseada mais no conhecimento e na disciplina e menos no aprendiz e em seus interesses. Defende, ainda, que essa é uma opção radical. O artigo sustenta que, em termos curriculares, não há nenhuma alternativa às disciplinas que se mostre adequada e que defina os conceitos que os alunos devem adquirir. Assevera, ainda, que o papel das escolas e do currículo centrado em disciplinas é bem mais complexo do que simplesmente manter desigualdades. Afirma que as disciplinas permitem que se ofereça aos alunos um conhecimento confiável. Por fim, considera que, embora as tendências globais possam prever mudanças nas ocupações, não se pode presumir que elas se aplicam à produção ou à aquisição do conhecimento confiável.
Educação especial na educação do campo: 20 anos de silêncio no GT 15
Authors: Caiado Katia Regina Moreno , Meletti Silvia Márcia Ferreira
Published: February 2017

O texto apresenta os conceitos de educação especial e educação do campo e sua interface na legislação atual. Além disso, mostra a escassez de pesquisas na área e analisa os dados do Censo Escolar (2007-2010) referentes às matrículas de alunos que vivem e estudam no campo e têm alguma necessidade especial por deficiência. Os achados principais foram: maior incidência de alunos com necessidades educacionais especiais que vivem no campo e estudam na cidade, concentração de matrículas em escolas regulares, embora com incidência significativa de matrícula de alunos com deficiência intelectual nos sistemas segregados de ensino.
Redução da demanda bioquímica de oxigênio de águas residuárias da suinocultura com emprego da macrófita aquática
Authors: Oliveira Rubens Alves de , Denículi Wilson , Itaborahy Cláudio Ritti , Cecon Paulo Roberto
Published: February 2017

O objetivo desta pesquisa foi analisar o desempenho de sistemas com aguapé (Eichhornia crassipes (Mart.) Solms), operando-se em condições estática e dinâmica, no tratamento de águas residuárias diluídas da suinocultura. Nos ensaios foram utilizadas soluções com concentrações de DBO entre 100 a 400 mg L-1, com monitoramento da concentração inicial, da concentração mínima e do seu dia de ocorrência, e da eficiência máxima de remoção, para avaliar o desempenho dos sistemas estático e dinâmico quanto à melhoria de qualidade das soluções submetidas a tratamento. Com base nas condições em que foram realizados os ensaios, concluiu-se que a utilização de aguapés resultou na redução significativa de DBO de soluções obtidas da diluição de águas residuárias da suinocultura, obtendo-se eficiências máximas de remoção nas faixas de 69 a 79% (estático) e de 83 a 91% (dinâmico). Os parâmetros de desempenho desses dois sistemas foram, de modo geral, melhores para águas residuárias com maiores níveis iniciais de DBO.
Desempenho de diferentes substratos na decomposição de carcaça de frango de corte
Authors: Cestonaro Taiana , Abreu Paulo G. de , Abreu Valeria M. N. , Coldebella Arlei , Tomazelli Inaiara L. , Hassemer Marla J.
Published: February 2017

Objetivou-se com este trabalho avaliar o desempenho de diferentes substratos na decomposição de carcaça de frango de corte. Utilizaram-se seis câmaras de uma composteira, medindo 0,80 m de largura, 1,20 m de profundidade e 1,50 m de altura cada uma. Os substratos utilizados foram: acícula de pinus, bagaço de cana, palha de milho, casca de amendoim, capim e maravalha. A compostagem foi acompanhada de 4 períodos. A pilha de cada câmara foi montada em 5 camadas, de cujo total foram depositadas, em duas camadas, 5 carcaças de aves, distribuídas uniformemente. A cada 10 dias se realizou o tombamento das pilhas com o objetivo de aerar o substrato e se lhe adicionou água. Após 30 dias realizou-se o tombamento final. Na montagem das pilhas e nos tombamentos pesaram-se, separadamente, as carcaças e os substratos. Durante o processo os parâmetros monitorados foram matéria seca, cinzas, fósforo, potássio, nitrogênio, pH, carbono orgânico e razão C/N. Todos os substratos foram eficientes na decomposição das carcaças de aves e os valores da composição físico-química final dos substratos estão de acordo com os valores da IN-25/Mapa, ou seja, todos os substratos podem ser utilizados como fertilizantes orgânicos simples.
Escória de siderurgia e seus efeitos nos teores de nutrientes e metais pesados em cana-de-açúcar
Authors: Sobral Márcio F. , Nascimento Clístenes W. A.do , Cunha Karina P. V.da , Ferreira Hailson A. , Silva Airon J. , Silva Fernando B.V.
Published: February 2017

Tipos de escórias se acumulam nos pátios das indústrias, tornando-se um problema ambiental, cuja disposição final em campos agrícolas é uma prática que pode minimizar a acumulação desses resíduos e, ao mesmo tempo, fornecer nutrientes às plantas e corrigir a acidez dos solos; apesar disto, há necessidade de se avaliar que riscos esses resíduos podem gerar ao ambiente. Objetivou-se, com este trabalho, avaliar a disposição final da escória de aciaria de forno elétrico e o fornecimento de silício, macronutrientes (Ca, Mg e P), micronutrientes (Fe, Mn, Zn, Cu, Ni) e elementos tóxicos (Cd e Pb) para a cana-de-açúcar. O experimento foi realizado em solo classificado como Argissolo Vermelho-Amarelo. Doses de escória de 0; 0,5; 1,0; 2,0 e 4,0 t ha-1 foram aplicadas no sulco de plantio no qual foi semeada; posteriormente, a cana-de-açúcar (var. RB92579). A escória de aciaria aumentou significativamente os teores de Ca, Mg, P, Si, Fe, Mn e Zn no solo e reduziu a acidez potencial. Houve aumento na área foliar e na altura dos colmos, tanto quanto no teor de Zn nas folhas. Não foi detectada a presença de Ni, Cd e Pb no solo nem na planta, indicando que a utilização de escória de aciaria não causou contaminação com esses elementos.
Atributos físicos, químicos e biológicos de solo sob produção orgânica impactados por sistemas de cultivo
Authors: Cunha Eurâimi de Q. , Stone Luís F. , Ferreira Enderson P. de B. , Didonet Agostinho D. , Moreira José A. A.
Published: February 2017

Este trabalho objetivou determinar quais atributos de um Latossolo Vermelho de Cerrado sob produção orgânica são mais impactados por sistemas de cultivo compostos por feijão e milho, semeadura direta (SD) e preparo convencional (PC) do solo e plantas de cobertura. Aplicaram-se técnicas de análise multivariada nos dados de quatro experimentos, dois em SD e dois em PC, um com feijão e outro com milho em cada preparo, instalados desde novembro de 2003, em Santo Antônio de Goiás, GO, no delineamento de blocos ao acaso, com quatro repetições. Em setembro de 2003 foram retiradas amostras de solo na camada de 0 - 0,10 m para análise química inicial (referência química). Em novembro de 2007 foi feita nova amostragem nas parcelas e em uma mata próxima (referência física e biológica) para determinação dos atributos físicos (AF), químicos (AQ) e biológicos (AB) do solo. Os sistemas de cultivo provocaram alterações nos AF e AB, quando comparados com a mata, e nos AQ, quando comparados com a condição inicial, sendo os AF mais sensíveis em detectar mudanças na qualidade do solo sob cultivo. Os quocientes metabólico e microbiano foram os mais afetados negativamente pelo PC quando comparados com a SD. Os AQ foram mais sensíveis em discriminar a cultura do feijão da do milho.