bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of Rare Earth Elements in Rock and Mineral Samples by ICP-MS and LA-ICP-MS
Authors: Sindern Sven
Published: February 2017

The group of the rare earth elements (REEs) serves as valuable indicator of numerous geological processes such as magma formation or fluid–rock interaction. The decay systems of the radioactive REE isotopes

The inductively coupled plasma (ICP) ion source and various types of mass spectrometers (MS) represent the basis to fulfil the analytical requirements of geoscientific studies. Today, ICP-quadrupole MS and ICP-sector field MS (SFMS) with a single detector or multiple ion collection (MC-ICP-MS) are standard instruments for REE analyses in the geosciences. Due to the need for in situ analysis, laser ablation (LA)-ICP-MS has become an important trace element microprobe technique, which is widely applied for determination of REE concentrations and isotope compositions in geoscientific laboratories.

The quality of concentration analysis or isotope ratio determination of REEs by ICP-MS and LA-ICP-MS is affected by many parameters. Most significant are interferences caused by polyatomic oxide and hydroxide ion species formed in the plasma as well as fractionation effects leading to non-stoichiometric behaviour during element determination or to biased isotope ratio measurements. Laser-induced fractionation and isobaric interferences have to be considered as additional effects for LA-ICP-MS. As analyte elements and matrix are unseparated, mineral standards matching the matrix of samples are a prerequisite for accurate and precise REE concentration and isotope ratio determination. Application of fs lasers instead of the more common ns lasers in LA-ICP-MS systems turns out to be a significant step to reduce laser-induced fractionation and to overcome effects of sample matrices.
Evaluation of vascular endothelial growth factor levels in rheumatoid arthritis patients, with and without joint swelling; a comparison with erythrocyte sedimentation rate, C-reactive protein, rheumatoid factor and anti-cyclic citruillnated protein
Authors: Gümüş Alper , Coşkun Cihan , Emre Hümeyra Öztürk , Temel Musa , İnal Berrin Berçik , Seval Hatice , Döventaş Yasemin Erdoğan , Koldaş Macit
Published: February 2017

Introduction

The aim of our study was to investigate the vascular endothelial growth factor levels in joint swelling-positive and joint swelling-negative rheumatoid arthritis patients and to then examine the relationship between conventional parameters such as the erythrocyte sedimentation rate and the levels of C-reactive protein, rheumatoid factor, and anti-cyclic citrullinated protein.

Methods

Fifty-nine (52 women and seven men) rheumatoid arthritis patients and 25 (20 women and five men) healthy individuals volunteered for this study. The patient group was divided into two sub-groups based on whether or not they exhibited joint swelling.

Results

The levels of vascular endothelial growth factor in the joint swelling-negative group were significantly different from those in the joint swelling-positive group, but they were not different from those in the control group (p=0.001 and p=0.72, respectively). We investigated the correlation between vascular endothelial growth factor and C-reactive protein levels (r=0.37, p=0.001). We also evaluated the diagnostic adequacy of vascular endothelial growth factor and created a ROC curve. The area under the curve was calculated to be 0.767.

Conclusion

Vascular endothelial growth factor is an adequate diagnostic biomarker and can successfully be used to predict the occurrence of rheumatoid synovitis based on local inflammation.
Selbstoffenbarung und Identität. Zur grammatikalischen Struktur der „absoluten“ Ich-Bin-Worte Jesu im Johannesevangelium
Authors: Förster Hans
Published: February 2017

There are instances of the nominal sentence ἐγώ εἰμι in John without a predicate nominal phrase. These have been described as “absolute” ἐγώ εἰμι-phrases (cf. John 8,24). It seems that the construction breaks the rules of Greek grammar. It is commonly assumed, therefore, that these “absolute” ἐγώ εἰμι-phrases are connected with the revelation of God to Moses in Ex 3,14. However, this assumption does not take into consideration the occurrences of the ἐγώ εἰμι-phrases in other contexts. It can be argued that these short nominal sentences are in fact in accordance with the rules of Greek grammar, and that the words ἐγώ εἰμι in the Septuagint are in most cases a translation of the Hebrew personal pronoun in the first person singular. As such they can be translated in most cases as “It is I”. This analysis is important for Johannine theology; in particular, it shows that the use of these words by Jesus cannot be taken as a special revelation.
Genetic Adaptation of Schizothoracine Fish to the Phased Uplifting of the Qinghai–Tibetan Plateau
Authors: Zhang Dongsheng , Yu Mengchao , Hu Peng , Peng Sihua , Liu Yimeng , Li Weiwen , Wang Congcong , He Shunping , Zhai Wanying , Xu Qianghua , Chen Liangbiao
Published: February 2017

Many species of Schizothoracine, a subfamily of Cyprinidae, are highly endemic to the Qinghai–Tibetan Plateau (QTP). To characterize the adaptive changes associated with the Schizothoracine expansion at high altitudes, we sequenced tissue transcriptomes of two highland and two subhighland Schizothoracines and analyzed gene evolution patterns by comparing with lowland cyprinids. Phylogenetic tree reconstruction and divergence time estimation indicated that the common ancestor of Schizothoracine fish lived ∼32.7 million years ago (MYA), coinciding with the timing of the first phase of QTP uplifting. Both high- and subhigh-Schizothoracines demonstrated elevated dN/dS ratios in the protein-coding genes compared to lowland cyprinids, from which some biological processes implicated in altitude adaptation were commonly identified. On the other hand, the highland and subhighland lineages presented drastically divergent landscapes of positively selected genes (PSGs), enriched with very different gene ontology (GO) profiles, including those in “sensory organ morphogenesis,” “regulation of protein ubiquitination,” “blood circulation,” and “blood vessel development.” These results indicated different selection pressures imposed on the highland and subhighland lineages of the Schizothoracine subfamily, with a higher number of genes in the high-altitude species involved in adaptations such as sensory perception, blood circulation, and protein metabolism. Our study indicated divergent genetic adaptations in the aquatic species facing the phased uplifting of QTP.
Parental Health Literacy and Outcomes of Childhood Nephrotic Syndrome
Authors: Borges Karlota , Sibbald Cathryn , Hussain-Shamsy Neesha , Vasilevska-Ristovska Jovanka , Banh Tonny , Patel Viral , Brooke Josefina , Piekut Monica , Reddon Michele , Aitken-Menezes Kimberly , McNaughton Ashley , Pearl Rachel J. , Langlois Valerie , Radhakrishnan Seetha , Licht Christoph P.B. , Piscione Tino D. , Levin Leo , Noone Damien , Hebert Diane , Parekh Rulan S.
Published: February 2017

OBJECTIVE:

Determine the association of parental health literacy with treatment response among children with nephrotic syndrome.

METHODS:

This was a cohort study of children aged 1–18 with nephrotic syndrome and their parent. Health literacy was measured using the validated Short Test of Functional Health Literacy in Adults assessing reading comprehension and numeracy. Outcomes included initial relapse-free period, frequently relapsing disease, relapse rate, second-line medication use, and complete remission after therapy.

RESULTS:

Of 190 parents, 80% had adequate health literacy (score >67 of 100), and higher scores were not correlated with higher education. Almost all achieved perfect numeracy scores (>86%); numeracy was not associated with outcomes. After adjusting for immigration, education, and income, higher reading comprehension scores (tertile 3) compared with lower scores (tertile 1) were significantly associated with lower risk of first relapse (hazard ratio 0.67, 95% confidence interval [CI] 0.48–0.94, P trend = .02), lower odds of frequently relapsing disease (odds ratio [OR] 0.38, 95% CI 0.21–0.70, P trend = .002), lower relapse rate (rate ratio 0.77, 95% CI 0.73–0.80, P trend < .001), and higher odds of complete remission after both initial steroids and cyclophosphamide (OR 2.07, 95% CI 1.36–3.16, P trend = .003; OR 5.97, 95% CI 2.42–14.7, P trend < .001).

CONCLUSIONS:

Lower parental health literacy, specifically reading comprehension, is associated with higher relapse rates among children with nephrotic syndrome and fewer achieving complete remission. This underscores the importance of assessing and targeting health literacy for chronic management of childhood-onset diseases.
2017 Recommendations for Preventive Pediatric Health Care
Authors:   COMMITTEE ON PRACTICE AND AMBULATORY MEDICINE,   BRIGHT FUTURES PERIODICITY SCHEDULE WORKGROUP, Richerson Julia E. , Simon Geoffrey R. , Abularrage Joseph J. , Boudreau Alexy D. Arauz , Baker Cynthia N. , Barden Graham A. , Brown Oscar “Skip” W. , Hackell Jesse M. , Hardin Amy P. , Meade Kelley E. , Moore Scot B. , Skatud Alisa , Curry Edward S. , Duncan Paula M. , Hagan Joseph F. , Shaw Judith S. , Swanson Jack T.
Published: February 2017

The 2017 Recommendations for Preventive Pediatric Health Care (Periodicity Schedule) have been approved by the American Academy of Pediatrics (AAP) and represents a consensus of AAP and the Bright Futures Periodicity Schedule Workgroup. Each child and family is unique; therefore, these recommendations are designed for the care of children who are receiving competent parenting, have no manifestations of any important health problems, and are growing and developing in a satisfactory fashion. Developmental, psychosocial, and chronic disease issues for children and adolescents may require frequent counseling and treatment visits separate from preventive care visits. Additional visits also may become necessary if circumstances suggest variations from normal.
The issue of zoning fees – case study in Kraków
Authors: Janus Jarosław , John Ewa
Published: February 2017

When a municipal council enacts local spatial development plan or its changes, the result may be
an increase in real property value. And if such property is sold by an owner or its perpetual usu�fructuary in five years since the zoning plan or its changes are in force, a head of the commune or
a city mayor are obliged to levy the so-called zoning fees. It is a one-time payment related to in�crease in real estate value due to resolution or change of local development plan, determined by
the provisions of the Spatial Planning and Development Act of 27 March 2003. This study aims
at presenting theoretical and practical aspects concerning zoning fees. The proceedings carried
out in Kraków with regard to real properties under two local development plans: Opatkowice
West and Opatkowice East have been analysed. Moreover, the article examines the impact of
the amendment to the Spatial Planning and Development Act adopted on 10 August 2011, to
embrace the judgement of the Constitutional Tribunal of 9 February 2010, file no. P 58/08. The
analyses are based on data acquired from The Geodesy Department of the Kraków City Office.
Exclusion of lands from agricultural production and urban pressure – case study
Authors: Prus Barbara
Published: February 2017

Though agricultural lands are subject to legal protection limiting their use for non-agricultural
purposes, recent research shows that investment areas are becoming larger at the cost of agri�cultural production areas. The analysis of cases in which lands have been excluded from agricul�tural production within Ropczyce-Sędziszów district (powiat), covering the period of 15 years,
confirms that the change of area of particular lands is taking place. The biggest change affected
grasslands and arable lands. The lands excluded from agricultural production are transformed
into single-family housing, recreational and communication areas. Moreover the research al�lowed to show similarities in communes (gminy) with respect to lands excluded from agricul�tural production. The communes were singled out that were homogeneous as regards exclusion
carried out in years 1999–2014. The choice of a research unit – Ropczyce-Sędziszów district – is
determined by accessibility of data regarding exclusions and the fact the district is regarded
as a unit with an average outlook for socioeconomic development. Simple statistical methods,
quantitative analyses and a method of spatial taxonomy were used in the research.
NET PRECIPITATION AND RECHARGE OF GROUNDWATER IN RIACHO FUNDO WATERSHED, FELIXLÂNDIA-MG
Authors: Carvalho Ana Paula Vilela , Dias Herly Carlos Teixeira , Tonello Kelly Cristina , Paiva Haroldo Nogueira de
Published: February 2017

ABSTRACT The amount of planted forests, especially those with exotic species, has increased along the last years in view of the need to supply the ever-growing demand of domestic and foreign markets for forest products. These crops are not only socially controversial but also polemic in what regards hydrological features of the local watershed. In that sense, we aimed to evaluate the net precipitation and water table level in the Riacho Fundo watershed, in Felixlândia municipality, Minas Gerais state, Southeastern Brazil, in a eucalyptus forest cover area located in the Cerrado of that state. Net precipitation was calculated by the sum of throughfall and stemflow. Water table level was monitored along four sites in the toposequence, where four piezometric wells were drilled. Net precipitation and water table level were evaluated from 2008 through 2010. Water table depth in the Riacho Fundo watershed varied with net precipitation and with the topographic position of the piezometric wells, which shows that groundwater in the eucalyptus forest area was recharged over the monitored years.
GEOPROCESSING APPLIED TO RISK ASSESSMENT OF FOREST FIRES IN THE MUNICIPALITY OF BODOQUENA, MATO GROSSO DO SUL
Authors: Bacani Vitor Matheus
Published: February 2017

ABSTRACT Forest fires are a permanent threat in urban-forest interface areas and cause considerable environmental damage, especially in protected areas. An efficient way to assist decision-making to prevent an increase in forest fires is risk assessment using geographical information systems (GIS). The objective of this study was to evaluate the risk of forest fires in the municipality of Bodoquena, Mato Grosso do Sul, Brazil, using remote sensing data and spatial analysis techniques implemented in a GIS. The procedures of the methodology are based on spatial analysis techniques to prepare maps of the likelihood of fire based on calculations of the Euclidean distance, the Kernel statistical method and fuzzy transformation and to combine these maps via the increasing diffuse overlay method. The results showed a high risk of forest fires on the margins of the urban area, rural settlements and main roads that cross the municipality, as well as the surrounding areas. It is concluded that the municipality of Bodoquena has a high risk of forest fires in areas with high biodiversity, especially the areas surrounding the Serra da Bodoquena National Park and Mato Grosso do Sul Pantanal.
NUTRIENT RETURN THROUGH LITTERFALL IN A Eucalyptus dunnii Maiden STAND IN SANDY SOIL
Authors: Ludvichak Aline Aparecida , Schumacher Mauro Valdir , Dick Grasiele , Momolli Dione Richer , Souza Huan Pablo de , Guimarães Claudiney do Couto
Published: February 2017

ABSTRACT In a forest stand, litterfall is primarily responsible for the retention and return of nutrients to the soil. The objective of this study was to evaluate the return of nutrients through litterfall in a stand of Eucalyptus dunnii in a Pampa biome. For quantification of litterfall, four 420-m2 installments were marked; within each one, four 0.50-m2 collection plots were distributed. For the collection of thick branches, four 7.00-m2 sub-plots were staked out. The collected litterfall was separated into leaf, twig, thick branch, and miscellany fractions for subsequent chemical analysis. The total litterfall measured was 6.99 Mg ha-1 yr-1, and comprised 61.57% leaves, 17.34% twigs, 13.83% thick branches, and 7.26% miscellany. The total amount of macronutrients in the litterfall was 160.22 kg ha-1 yr-1, and the macronutrient transfer order was the same for the leaf, twig, and thick branch fractions (Ca > N > K > Mg > S > P). The total quantity of micronutrients was 7.55 kg ha-1 yr-1, and the transfer order was Mn > Fe > B > Zn > Cu. Maintaining litterfall on the site, especially in degraded or low fertility soils like in the Pampa biome, may contribute to possible improvements in soil characteristics.
EFFECT OF CHARCOAL -ENRICHED SUBSTRATE ON SEEDLINGS OF RHIZOBIUM-INOCULATED LEGUME TREES
Authors: Freitas Aroldo Felipe de , Souza Luiz Augusto Gomes de , Cardoso Irene Maria , Venturin Nelson
Published: February 2017

ABSTRACT Native legume trees are planted in agroforestry systems for their hardiness and symbiosis with soil bacteria of the genus rhizobium, efficient in N2 fixation. The enrichment of the substrate composition with fine charcoal for seedling production of these trees is interesting for increasing soil porosity, water retention and the proliferation of beneficial microorganisms. Experiments were carried out to analyze the effect of substrate enrichment with charcoal on the quality of Clitoria fairchildiana, Enterolobium schomburgkii and Inga edulis seedlings. The treatments consisted of a 3:2:0.5 (v:v) mixture of clay soil, sand and bovine manure and a 3:2 (v:v) mixture of clay soil and sand combined with charcoal rates of 0, 10, 19 and 29%. After mixing the components, substrate samples were collected and chemically analyzed. The experiment was arranged in a completely randomized design with 5 treatments and 10 replications. The seedlings were inoculated with homologues rhizobia and growth controlled monthly. The plants were collected to determine the number of nodules and dry biomass of roots, shoots and nodules. Seedling growth was similar on substrates containing charcoal or manure, except for E. schomburkii, which increased by more than 100% on the charcoal-containing substrates. The number and dry biomass of nodules in the charcoal-containing substrates was up to 100% and 300% higher than in the manure-containing treatment, respectively. The results indicated that the substitution of manure by charcoal favors the seedling quality of the studied species.
SLOW AND FAST DRYING IN SEEDS OF Ocotea puberula (Rich.) Ness
Authors: Tanaka Dalciana Vicente , Oliveira Luciana Magda de , Liesch Patrícia Paloma , Engel Mara Luana
Published: February 2017

ABSTRACT The objective of this work was to evaluate the influence of types of drying on seeds' quality, as recalcitrant, Ocotea puberula and determine their degree of critical humidity and lethal degree. Seeds harvested in Brunópolis, SC, with an initial moisture content of 38%, were dried to 18%, with gradients of 2%; using the equation of target weight to ensure that gradient in the stove (35 oC) and in a desiccator with silica gel (25 oC). After drying, the seeds were evaluated for water content, percentage and germination speed index (GSI), tetrazolium and T50. It was observed that up to 32% water content did not change in seed quality, regardless of the type of drying and verified significant loss of germination after this value. We conclude that the type of drying does not affect the quality of the seed; however, because it is a recalcitrant seed, reducing the water content below 32% decreased germination, and its degree of critical humidity and seeds with 22% moisture content had no germination in this study is the degree of lethal humidity of this species.
SHEAR STRENGTH IN THE GLUE LINE OF Eucalyptus sp. AND Pinus sp.WOOD
Authors: Bianche Juliana Jerásio , Carneiro Angélica de Cássia Oliveira , Ladeira João Paulo Silva , Teixeira Ana Paula Mendes , Pereira Flávia Alves , Oliveira Bráulio da Silva de
Published: February 2017

ABSTRACT To evaluate the adhesive efficiency on the union of glued joints in a particular temperature and humidity conditions for a specified time the adhesive must be submitted to specific load tests, such as shear in the glue line. The objective of this study was to evaluate the shear strength in the glue line of Eucalyptus sp and Pinus sp.woods. Five adhesives (castor oil, sodium silicate, modified silicate, , PVA and resorcinol-formaldehyde), three weights (150 g/m2, 200 g/m2, and 250 g/m2) and two species (Eucalyptus sp. and Pinus sp.) of wood were used. Twelve specimens were obtained from each repetition per treatment, corresponding to 108 specimens that were conditioned at a temperature of 23 ± 1°C and relative humidity of 50 ± 2%. The interaction between the weight and type of adhesive was significant for the shear strength in the glue line of eucalyptus wood. However, no interaction between the weight and the adhesive was found for pinus, only the isolated from the adhesive effect. Chemical bonds originated in the polymerization of resorcinol-formaldehyde adhesives and castor bi-component conferred upon these adhesives the greatest resistance in the glue line. Castor and resorcinol-formaldehyde adhesives showed the highest shear strength values in the line of glue and wood failure. Castor adhesive presented satisfactory performance for bonding of eucalyptus and pine woods.
O Serviço Social aos 80 anos diante de um novo Brasil
Authors: Iasi Mauro Luis ,   UFRJ,  Brazil
Published: February 2017

Resumo: Aos 80 anos do Serviço Social no Brasil avalia-se o encerramento de um período histórico aberto com a crise da autocracia burguesa e o processo de democratização que se seguiu, assim como o desfecho que interrompe os treze anos de governos petistas de coalizão de classes. Destaca-se a compreensão sobre o caráter do Estado burguês e a compreensão sobre a natureza e os limites da disputa de hegemonia que predominou nas forças progressistas no período analisado.
O golpe nas ilusões democráticas e a ascensão do conservadorismo reacionário
Authors: Braz Marcelo ,   UFRJ,  Brazil
Published: February 2017

Resumo: Discutimos a crise brasileira e o processo político que levou à ascensão de um conservadorismo reacionário e ao impeachment de Dilma Rousseff. Procuramos mostrar de que forma as personagens centrais da conjuntura encarnam interesses reais de classes, especialmente aqueles vinculados ao capital financeiro e a seus agentes internos, bem como oferecer elementos para que o leitor entenda os limites da democracia no Brasil e os resultados da política de conciliação de classes em nosso país.
Memória e conquistas históricas
Authors: Barroco Maria Lucia ,   PUC-SP,  Brazil
Published: February 2017

Resumo: Este depoimento fez parte da mesa de memória comemorativa dos 80 anos do Serviço Social brasileiro realizada no 9º Seminário Anual de Serviço Social da Cortez Editora, em maio de 2016. A abordagem privilegia as conquistas éticas da profissão, ressaltando o processo de construção de uma nova ética a partir dos Códigos de Ética de 1986 e 1993.
Memória: 80 anos do Serviço Social no Brasil: O III CBAS "O Congresso da Virada" 1979
Authors: Abramides Maria Beatriz Costa ,   PUC-SP,  Brazil
Published: February 2017

Resumo: O artigo trata da contextualização histórica do Serviço Social no Brasil com destaque para o III CBAS, o conhecido "Congresso da Virada", realizado em 1979. Indica os elementos intrínsecos à conjuntura da luta de classes no país, contra a ditadura, anticapitalista na direção do socialismo, que se expande a partir de 1978. Apresentamos a inserção dos assistentes sociais no processo de lutas sociais, como trabalhadores que de forma coletiva rompem com o conservadorismo ao definirem a direção social da profissão voltada aos interesses imediatos e históricos da classe trabalhadora.
Rural families' interpretations of experiencing unexpected transition in the wake of a natural disaster
Authors: Fernandes Gisele Cristina Manfrini ,   Universidade Federal de Santa Catarina,  Brazil, Boehs Astrid Eggert , Denham Sharon A. , Nitschke Rosane Gonçalves , Martini Jussara Gue ,   University of Texas Southwestern Medical Center,  U.S.A.
Published: February 2017

Abstract: Natural disasters affect populations in various parts of the world. The impacts of disasters can cause many problems to the health of people and disruption to family life, potentially leading to an unexpected transition. The objective of this paper is to present the unexpected transitional experiences of rural families following a natural disaster. A multiple case study of six families was conducted with children and adolescents in a rural area affected by a 2008 disaster in southern Brazil. For data collection, we used participant observation, narrative interviews, genograms, ecomaps and an instrument called calendar routine. The analysis of the data resulted in different family interpretations about the changes resulting from the storm and compared life before and after the disaster. The loss of homes and loved ones, migration, unemployment, and losses from the farm were the main changes associated with new development tasks. The experiences of family transition after the disaster revealed that losses influenced social lives, daily routines and the preservation of cultural values.
¿El contexto geográfico importa en la mortalidad por diabetes mellitus? Tendencias espacio-temporales en Argentina, 1990-2012
Authors: Leveau Carlos M. ,   Universidad Nacional de Lanús, Argentina, Marro M. Jimena , Alonso Valeria , Lawrynowicz Alicia E. B. ,   Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán", Argentina
Published: February 2017

Resumen: El objetivo de esta investigación fue identificar conglomerados espacio-temporales de alta y baja mortalidad por diabetes mellitus durante el período 1990-2012 en Argentina. Se realizó un estudio ecológico retrospectivo espacio-temporal. Se consideró la población mayor de 34 años residente en Argentina, según sexo, durante el período 1990-2012. Las unidades espaciales de análisis estuvieron conformadas por departamentos más la Ciudad Autónoma de Buenos Aires. Se empleó la técnica de exploración espacio-temporal para la detección de conglomerados de alta y baja mortalidad. Se encontraron áreas de elevada mortalidad por diabetes mellitus en el centro-oeste del país, y zonas de baja mortalidad en la región costera de la provincia de Buenos Aires y Patagonia. Los conglomerados de alta mortalidad ocuparon un período comprendido entre 1995 y 2008; los de baja mortalidad se desplazaron hacia los años 2002-2012. El descenso reciente en la mortalidad por diabetes mellitus no fue geográficamente homogéneo, con una disminución marcada en el este de la Provincia de Buenos Aires y la Ciudad Autónoma de Buenos Aires.
Electrical conductivity of the nutrient solution and plant density in aeroponic production of seed potato under tropical conditions (winter/spring)
Authors: Calori Alex Humberto , Factor Thiago Leandro , Feltran José Carlos , Watanabe Eduardo Yuji , Moraes Carolina Cinto de , Purquerio Luís Felipe Villani
Published: February 2017

ABSTRACT The recent introduction in Brazil of production of quality seed potatoes in hydroponic systems, such as aeroponics, demands studies on the nutritional and crop management. Thus, this study evaluated the influence of electrical conductivity of the nutrient solution and plant density on the seed potato minitubers production in aeroponics system. The Agata and Asterix cultivars were produced in a greenhouse under tropical conditions (winter/spring). The experimental design was a randomized block in a split-split plot design. The plot consisted of 4 electrical conductivities of the nutrient solution (1.0; 2.0; 3.0; and 4.0 dS∙m−1); the subplot, of 4 plant densities (25; 44; 66; and 100 plants∙m−2); and the subsubplot, of the 2 potato cultivars (Ágata and Asterix), totaling 4 blocks. The 2.2 and 2.1 dS∙m−1 electrical conductivities yielded the highest productivity of seed potato minitubers, for Ágata and Asterix cultivars, respectively, regardless of plant density. For both cultivars, the highest yield was observed for the 100 plants∙m−2 density.
Variability of physical properties of soil and rice grown under cover crops in crop-livestock integrated system
Authors: Trevisan Rodrigo Gonçalves , Freddi Onã da Silva , Wruck Flávio Jesus , Tavanti Renan Rimoldi , Peres Fernanda Salles Cunha
Published: February 2017

ABSTRACT The production systems of upland rice culture in Mato Grosso are not consolidated yet while the effects of soil physical properties and their correlation with rice yield in crop-livestock integrated systems are not defined as well. Therefore, this study determined the spatial variability of physical properties of soil and rice cultivated in no-tillage system under different cover crops, using principal components analysis and geostatistics. The experiment was conducted in Santa Carmen, northern Mato Grosso. A regular grid with 100 sample points distributed in an area of 26,400 m2 was installed. Soil and rice samples were collected to determine rice variables and soil physical properties. The average rice yield was 1.70 Mg∙ha−1, ranging from 0.70 to 3.12 Mg∙ha−1. The highest yields were observed in consortium with cowpea and brachiaria and were associated with lower incidence of grain spots, despite higher soil density and penetration resistance. The consortium with brachiaria, crotalaria, and sudangrass had lower yields, which was associated with higher incidence of grain spots, despite higher soil macroporosity and total porosity.
Sistemas de preparo do solo para o cultivo da batata-doce
Authors: Rós Amarílis Beraldo
Published: February 2017

RESUMO É crescente a adoção de preparos reduzidos do solo e de plantio direto; no entanto, estudos em solos cultivados com raízes e tubérculos são escassos e apresentam resultados controversos. Este trabalho teve por objetivo avaliar o impacto de sistemas de preparo em propriedades físicas de um Argissolo Vermelho-Amarelo, bem como a produtividade e o formato de raízes tuberosas de batata-doce cultivada nesse solo. Foi instalado experimento em blocos ao acaso, em esquema de parcelas subdivididas. As parcelas corresponderam aos tratamentos: preparo com aração e gradagem (PAG), preparo com aração, gradagem e confecção de leira (PAG + L), confecção de leiras sem revolvimento prévio do solo (Leira), preparo reduzido (PR) e preparo reduzido com palha superficial (PRCP); e as subparcelas, a 4 épocas de coleta: 90; 120; 150 e 180 dias após plantio da batata-doce. A confecção de leira (Leira e PAG + L), em oposição ao preparo reduzido, promoveu menores valores de densidade do solo, resistência do solo à penetração e microporosidade, maiores valores de porosidade total e macroporosidade, além de maiores produtividades comerciais de raízes tuberosas, bem como maior porcentagem de massa seca. Logo, o preparo do solo altera as características físicas de maneira expressiva e, para a confecção de leiras, são desnecessárias as etapas de aração e gradagem, visto que Leira e PAG + L apresentam valores semelhantes nas propriedades físicas estudadas e na produtividade comercial.
The Relationship Between Perceptual Motor Skills and Attention
Authors: Sousa Vanessa de , Rueda Fabián J. M.
Published: February 2017

Abstract: Although the relationship between perceptual motor skills and attention is reported in the literature, few studies have empirically explored this association. Thus, the objective of this study was to investigate the relationship between these constructs, using the Bender-Gestalt Test: Gradual Scoring System (B-SPG) and the Psychological Battery for Attention Assessment (BPA). The participants were 320 children from four public schools in a city located in the South of the state of Minas Gerais, with ages ranging from seven to 10 years (M = 8.39, SD = 1.10) and 196 (55.9 %) female. The results showed negative, moderate and significant correlations between the total scores of the instruments, indicating the relationship between the constructs. Although the data has confirmed the existence of a relationship between perceptual motor skills and attention, further studies with samples from other regions are necessary.
Adolescent Perceptions of Stress and Future Expectations
Authors: Florêncio Cybelle Bezerra Sousa , Ramos Maély Ferreira Holanda , Silva Simone Souza da Costa
Published: February 2017

Abstract: Adolescence has been described as a developmental phase marked by challenges, tensions, and uncertainties that can generate stress and lower adolescents' future expectations. This study aims to describe adolescent perceptions of stress and future expectations.It is a mixed-methods study of 17 high school students, selected from a sample of 295 adolescents, aged 14 to 18 years, who are pupils in a private school system in the metropolitan region of Belém do Pará. The Stress Scale for Adolescents was used, in addition to focus groups. The results indicated higher stress levels in female adolescents. The participants who had no stress had good family relationships and well-defined future expectations. However, the adolescents who had stress associated their family context with stressors and had no expectations for the future.
Media Competencies for the Citizenship Training of Teachers from Andean America: Colombia and Ecuador
Authors: Rivera-Rogel Diana , Zuluaga-Arias Ligia I. , Ramírez Nélida María Montoya , Romero-Rodríguez Luis M , Aguaded Ignacio
Published: February 2017

Abstract: In an increasingly saturated information and infoxicated world, Media Literacy emerges as a necessity for effective filtering of the vast amount of information we consume. The present research aims to quantitatively analyze the level of media competencies of Colombian(Medellin) and Ecuadorian (Loja and Zamora) teachers by means of the application of an adaptation of the taxonomy from the media competencies model, which consists of 6 dimensions and a total of 12 indicators. The total analyzed sample was comprised of 654 teachers from 81 public and private institutions. A data-gathering instrument was used with the aim of determining their level of media competencies from each of the dimensions. The results showed a low to medium level of media competency knowledge, which illustrated the need for priority interventions based on local, regional and international works, namely those that mobilize scientific, academic and political collaboration to improve the performance of a population that should lead the general training of citizens in media competencies.
Analysis of Gender Equality Competence Present in Cultural Positions
Authors: Mimbrero Mallado Concepción , Silva Joilson Pereira da , Espinosa Leonor María Cantera
Published: February 2017

Abstract: Articulating the gender dimension in organizations is not easy because their members have to be trained to adopt positions that facilitate the implementation of solutions that help to combat inequalities. The aim of this article was to identify the gender equality competence present in the three types of cultural positions Castells proposed in members of a City CouncilinSevilla-Spain, who wanted to implement gender mainstreaming. The participants were 27 people (16 women and 11 men). The method used was discourse analysis. The obtained results show that, while all competences were present in the project position,in the resistance position, there was none. In the legitimizers, we observed inconsistency in the discourse presented. This arouses considerations on the importance of knowing the gender equality competences in order to implement gender mainstreaming in organizations.
The Predictors of Graduation: Social Skills, Mental Health, Academic Characteristics
Authors: Brandão Alessandra Salina , Bolsoni-Silva Alessandra Turini , Loureiro Sonia Regina
Published: February 2017

Abstract: Not completing the undergraduate course in the time expected in the curricula can put the universities and students at a disadvantage, with a delay to enter the labor market. The aim was to identify predictors of graduation, considering social skills, mental health, initial academic performance and socio-demographic and academic characteristics. In total, 287 students participated, of both genders and from the humanities, exact and biological areas, who answered the instruments: Social Skills, Behaviors and Context Assessment Questionnaire for University Students, Short version of the Social Phobia Inventory, Beck Depression Inventory, and Structured Clinical Interview for DSM-IV. Predictors were: female, humanities area and average or above-average initial academic performance. The social skills and mental health differentiated the groups in the univariate analyses. This data suggests a need for attention to academic performance in the initial stages of the course, and preventive measures for male students of the exact and biological areas.
Heavy metal contents in Latosols cultivated with vegetable crops1
Authors: Silva Laércio Santos ,   Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil, Galindo Izabel Cristina de Luna , Nascimento Clístenes Williams Araújo do , Gomes Romário Pimenta , Campos Milton Cesar Costa , Freitas Ludmila de , Oliveira Ivanildo Amorim de ,   Universidade Federal Rural de Pernambuco, Brazil,   Universidade Federal do Amazonas, Brazil
Published: February 2017

ABSTRACT Heavy metals are naturally found in soils, but their levels may increase as a result of anthropogenic actions. This study aimed at determining the concentrations of Cd, Cu, Mn, Ni, Pb and Zn in Yellow Latosol from vegetable crops areas, as well as the influence of the cultivation and position in the landscape on the accumulation of these elements. Soil samples were collected from five farming areas and four areas with natural vegetation, which served as a reference. Soil was collected along the planting rows from three transect positions (upper, middle and lower sections of the slope), as well as from the upper portion of forest areas, at three depths (0.0-0.10 m, 0.10-0.30 m and 0.30-0.60 m). The results from the chemical analyses indicated that Cd, Cu, Mn, Pb and Zn levels in the soil increased as a result of cultivation. Only Cd and Cu concentrations were above the quality reference values for the Pernambuco State. The multivariate analysis techniques used were efficient at separating the environments and at differentiating the origin of the metals. Soils from forest areas were clearly separated from croplands, demonstrating the effect of agricultural practices on the metal contents in the soils. The principal component analysis indicated a predominantly anthropogenic origin (phosphate fertilizing) for Cd, in more superficial soil samples.
Agronomic performance and soil chemical attributes in a banana tree orchard fertigated with humic substances1
Authors: Melo Diego Magalhães de ,   Universidade Federal do Recôncavo da Bahia, Brazil, Coelho Eugênio Ferreira , Borges Ana Lúcia , Pereira Bruno Laecio da Silva , Campos Marcos Sousa ,   Empresa Brasileira de Pesquisa Agropecuária, Brazil
Published: February 2017

ABSTRACT Fertigation with humic substances products has been adopted in commercial banana tree plantations. However, there are few studies on the procedure to confirm its technical feasibility. This study aimed at assessing the effects of fertigation with humic substances on the chemical attributes of a Dystric Densic Xantic Ferralsol cultivated with the 'BRS Princesa' banana tree cultivar and on the agronomic performance of the orchard. The experiment was conducted using a randomized blocks design, with six treatments and four replications. Treatments consisted of a monthly application of humic substances doses based on the commercially recommended reference dose for the banana plantation (12.09 kg ha-1 cycle-1). The doses used were equivalent to percentages of the reference dose (100 %, 150 %, 200 %, 250 % and 300 %), in addition to the control. No significant effects of the fertigation with humic substances that could justify the use of the product at the doses assessed were observed on the soil chemical attributes, banana growth and yield.
Probing behavior of Dysmicoccus brevipes mealybug in pineapple plants1
Authors: Santa-Cecília Lenira Viana Costa ,   Empresa de Pesquisa Agropecuária de Minas Gerais, Brazil, Prado Ernesto , Souza Brígida ,   Universidade Federal de Lavras, Brazil
Published: February 2017

ABSTRACT Differences in susceptibility to viruses in plants may be partially explained by the insect vector probing behavior and by the presence of phenolic compounds, which are often associated with defense strategies. This study aimed at detecting barriers that may difficult the probing activity of the Dysmicoccus brevipes (Pseudococcidae) pineapple mealybug, a vector of the pineapple mealybug wilt-associated virus, as well as evaluating the phenolic content of plants, in order to verify any possible relationship with the probing behavior, by using the electrical penetration graphs (EPG) technique. Seedlings of 'Smooth Cayenne' and 'Pérola' pineapple cultivars were used in the experiments. Only 28 % and 21 % of the mealybugs reached the phloem of the 'Smooth Cayenne' and 'Pérola' cultivars, respectively, over 16 h of recording, with an average of 9 h to reach the phloem vessels. The xylem phase was extended in both cultivars and represented approximately 31 % ('Smooth Cayenne') and 44 % ('Pérola') of the recording time. The phenolic contents of both cultivars were similar.
Production of gladiolus submitted to gibberellic acid in a protected environment1
Authors: Carvalho-Zanão Maristela Pereira ,   Universidade Estadual do Oeste do Paraná, Brazil, Villa Fabíola , Tsutsumi Claudio Yuji , Pereira Natália ,   Universidade Estadual do Oeste do Paraná, Brazil
Published: February 2017

ABSTRACT Gladiolus is an important cut flower commercialized in Brazil, and the use of gibberellic acid (GA3) to cultivate it in a protected environment may promote the production of high quality flower spikes. This study aimed at evaluating the production of flower spikes and corms of gladiolus ('White Friendship' cultivar) submitted to high concentrations and application methods of gibberellic acid, in a protected environment. The experimental design was randomized blocks, in a 2 x 4 factorial arrangement, being two application methods (foliar spraying and corm soaking) and four concentrations (0 mg L-1, 250 mg L-1, 500 mg L-1 and 1,000 mg L-1) of gibberellic acid, with six replications and two plants per experimental unit. The following traits were evaluated: plant height, number of leaves per plant, marketable harvest point of flower spikes, number of florets per flower spike, flower panicle length, stem and floret diameter, corm perimeter, number of cormels per plant and production of corm fresh matter and leaf dry matter, flower spikes, corms and cormels. High concentrations of GA3 are not recommended for the production of flower spikes and corms of the gladiolus 'White Friendship' cultivar. The corm soaking application method anticipates the harvest of flower spikes and produces a higher number of cormels per plant. Regardless of the application method, the concentration of 550 mg L-1 of GA3 increases the cormel yield of the 'White Friendship' cultivar.
Selection of tomato accessions resistant to Verticilium wilt1
Authors: Carrer Filho Renato ,   Universidade Federal de Goiás, Brazil, Oliveira Renata Maria , Dias Vanessa Duarte , Rocha Geisiane Alves , Dianese Érico de Campos , Cunha Marcos Gomes da
Published: February 2017

ABSTRACT Vascular wilting in tomato plants is an important disease caused by soil-inhabiting pathogens, especially Verticillium dahliae, which results in significant production losses. Control measures against this disease are difficult to implement due to intrinsic pathogen characteristics, such as high adaptability to the subterranean environment, in association with the host, and development of resistance structures that remain viable in the soil for long periods. The introgression of genes that express resistance is the main control measure and requires a continuous characterization program of resistant accessions. This study aimed at identifying tomato (Solanum lycopersicum) accessions resistant to V. dahlia, by using the phenotypic and genotypic methods. The reaction of 33 tomato accessions to different V. dahliae isolates was reinforced by molecular analysis, through markers linked to Ve resistance genes. The combination of bioassays and specific molecular markers showed a high correlation (94.3 %), with the selection of 25 accessions resistant to V. dahliae.
A aplicação do Parcelamento, Edificação ou Utilização Compulsórios (PEUC)
Authors: Denaldi Rosana , Brajato Dânia , Souza Claudia Virginia Cabral de , Frota Henrique Botelho
Published: February 2017

Resumo Este trabalho trata da aplicação do Parcelamento, Edificação ou Utilização Compulsórios (PEUC), um dos principais instrumentos previstos na Constituição Federal de 1988 e no Estatuto da Cidade para fazer cumprir a função social da propriedade urbana. Apresentam-se os resultados de uma pesquisa realizada em 2014 que, tomando como objeto de análise oito municípios que experimentaram a aplicação do instrumento após a edição do Estatuto da Cidade, identificou as estratégias e os procedimentos administrativos adotados na implementação do PEUC. A pesquisa revela a importância de definição de uma estratégia espaço-temporal que dirija a aplicação do instrumento para que sua finalidade de ordenamento do território e de democratização do acesso à terra seja cumprida. Em parte dos municípios, o PEUC não dialoga com as condições de infraestrutura urbana e a demanda para a utilização do conjunto notificado. Além disso, há poucos casos de combinação do PEUC com outros instrumentos urbanísticos, como as Zonas Especiais de Interesse Social (ZEIS). Conclui-se que o planejamento e a gestão da aplicação do PEUC, destacando-se os procedimentos de monitoramento e de controle das ações pós-notificação, bastante complexos, não têm recebido a devida atenção dos gestores municipais, o que dificulta ainda mais o alcance dos objetivos do instrumento.
LIBROS DE TEXTO Y CONTROL DEL CURRICULUM EN EL CONTEXTO DE LA SOCIEDAD DIGITAL
Authors: Rodríguez Jesús Rodríguez ,   Universidad de Santiago de Compostela, Spain, Bonafé Jaume Martínez ,   Universidad de Valencia, Spain
Published: February 2017

RESUMEN: Los libros de texto - tanto en formato impreso como digital - manifiestan una presencia muy notable en los sistemas educativos actuales. En este artículo pretendemos analizar las razones que, en plena era digital, justifican la hegemonía de este recurso y su notable contribución en los procesos de control del currriculum. Presentaremos los resultados de algunas investigaciones recientes relacionadas con los libros de texto digitales y podremos constatar si se han producido cambios significativos en relación con su significado, interpretación y uso en la escuela.
ESTANDARIZACIÓN Y RACIONALIDAD POLÍTICA NEOLIBERAL: BASES CURRICULARES DE CHILE
Authors: Oliva María Angélica ,   Universidad de Playa Ancha,  Chile, Gascón Felip ,   Universidad de Playa Ancha,  Chile
Published: February 2017

RESUMEN: La política educativa chilena 2001-2016 descubre una matriz cuyos dispositivos configuran una racionalidad técnico-instrumental. La medición fundamenta la estandarización en las Bases Curriculares Nacionales, estableciendo un régimen de verdad funcional al orden neoliberal. Se tensiona la relación estandarización/calidad de la educación/racionalidad política neoliberal, develando los nodos de su compleja red en las políticas educativas.
EFECTOS INDESEADOS DE LA MEDICIÓN DE LA CALIDAD EDUCATIVA EN CHILE. LA RESPUESTA DE LA SOCIEDAD CIVIL
Authors: Campos-Martínez Javier ,   Universidad de Massachusetts, USA, Morales Patricia Guerrero ,   Universidad Central de Chile, Chile
Published: February 2017

RESUMEN: Con el avance de reformas que usan pruebas estandarizadas para evaluar y gestionar a las escuelas, sus efectos se hacen cada vez más presentes mientras las experiencias de resistencia se multiplican. El presente artículo utiliza técnicas cualitativas aplicadas durante un período de cinco años en tres escuelas de Santiago de Chile para explorar los efectos indeseados de este tipo de pruebas y el impacto de una campaña educativa que busca terminar con ellos.