bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling Technological Parameters for Producing Combined Electrospark Deposition Coatings
Authors: Tarelnyk Viacheslav , Konoplianchenko Ievgen , Tarelnyk Nataliia , Kozachenko Aleksey
Published: August 2019

The paper represents a formalized methodology for solving the problem of creating fundamentally new materials, such as "base - coating" ones, which have increased surface wear resistance and relatively high strength and viscosity. Electrospark alloying (ESA) method is proposed as a process for depositing protective coatings on metal surfaces. There are considered the issues of improving the quality of the coatings formed by the ESA method. There is specified a feature of processing the surfaces having been treated with the use of the ESA method, which feature being associated with a relatively small thickness of the layers formed (tens of micrometers). Since to reduce the roughness of the surface, the process of grinding is difficult or even unacceptable to perform, it has been suggested to use the method of surface plastic deformation (SPD). One of the effective SPD methods for finishing the parts is a diamond smoothing process, which, in contrast to running-in with a ball or roller, allows processing the parts of very high hardness values. As a reserve to improve the quality of coatings formed by the ESA method, there is considered a process for producing combined electrospark deposition coatings (CEC) with hard wear-resistant and soft anti-friction metals integrated therein. There are represented the results of mass transfer process investigation performed at forming the CEC on the specimens of steel 45 with indium, tin and copper being used as soft antifriction metals, and tungsten and hard alloy of VK8 grade applied as wear-resistant materials. There is represented a mathematical model for calculating the main ESA technological parameters being necessary for forming the CEC and allowing to predict the weight gain (increase in weight) and size gain (increase in size) at the cathode (the part). It allows predicting the CEC main technological parameters for any electrode pair materials (substrate material and electrode materials making up the CEC).
Influence of Film-Forming Components on the Corrosion Resistance of Powder Coating
Authors: Gots Vladimir , Lastivka Oles , Tomin Oleksandr , Kovalchuk Olga
Published: August 2019

There are shown studies on influence of film-forming components on the corrosion resistance of powder coating. Protective and decorative powder coatings - one of the most promising types of paints and varnishes for industrial use. Their main advantages are: absence of solvents, practically waste-free coating technology (the degree of powder utilization during application is close to 100 relative simplicity and cost-effectiveness of the production process of coating. The study of protective properties of powder coatings is associated with the detection of high performance properties and high corrosion resistance of the material. Although corrosion resistance of powder coating performance continues to improve via the design of more effective film-forming components the nomenclature of which is wide enough.
Bearing Capacity of Structures Made of Materials with Different Tensile and Compression Strengths
Authors: Soroka Mykola
Published: August 2019

The paper considers the problem of the ultimate load finding for structures made of a material with different limits of tensile strength and compression. The modulus of elasticity under tension and compression is the same. It is assumed that upon reaching the ultimate strength, the material is deformed indefinitely. The calculations use a simplified material deformation diagram — Prandtl diagrams. The limiting state of a solid rectangular section under the action of a longitudinal force and a bending moment is considered. The dependences describing the boundary of the strength of a rectangular cross section are obtained. Formulas allowing the calculation of the values of the limit forces and under the action of which the cross section passes into the plastic state are derived. Examples of the analytical calculation of the maximum load for the frame and two-hinged arch are given. An algorithm is proposed and a program for calculating arbitrary flat rod systems according to the limit state using the finite element method is compiled. The proposed algorithm does not involve the use of iterative processes, which leads to an exact calculation of the maximum load within the accepted assumptions.
Study of Joint Work of Shell and Core of Tube Confined Concrete Elements with Strengthened Core
Authors: Palyvoda Olexandr , Lapenko Olexandr
Published: August 2019

At the present time, it is necessary to strengthen the economy mode, the resources efficiency and reduce the material consumption in construction. Modern building constructions must meet all the requirements of economy, resource conservation, which are required for construction. The main direction of their development is reducing the cost of steel (14-16%), saving cement (10-12%) and saving forest materials (12-14%). These tasks can be solved, including at the expense of reduction of material content and reduction of the cross-section of structures, due to the rational combination of concrete and steel in their joint work and through the use of high-strength materials. These requirements are satisfied with building constructions from tube confined concrete. With a relatively small cross-section, such structures can withstand significant efforts, while the concrete at the expense of a volumetric stressed state receives stresses that far exceed the prism strength, which saves steel and concrete. Applying high-strength concrete, concrete, compacted by pressing, centrifugation, it is possible to obtain significant cement savings, as due to industrial technological factors of sealing concrete mix significantly increases the concrete strength. It is possible to increase the concrete strength also due to the use of indirect reinforcement, which allows, at low cost of steel, to significantly increase the strength of structures. Improving the well-known effective methods of strengthening concrete in relation to tube confined concrete constructions with strengthened cores suitable for industrialization is an urgent and important task. The purpose of the research presented in this paper was the experimental study of tube confined concrete elements with reinforced in different methods concrete cores; the development of methods for calculating the carrying capacity and the stress-strain state of tube confined concrete elements with strengthened cores.
Influence of Structural Characteristics on Concrete Strength under Dynamic Effects
Authors: Plugin Andrii , Palant Olena , Plugin Dmytro , Miroshnichenko Sergii
Published: August 2019

The article deals with theoretical and experimental research into dependency of crack resistance of concrete under dynamic effects on coefficients of grain separation of coarse and fine aggregates. It was established that these dependencies were of extreme nature. The research yielded the optimal values of coefficients of grain separation of coarse and fine aggregates, cement particles, and also water-to-cement ratio for the materials under study; these factors provided the best physical and mechanical properties of concrete, including its crack resistance under dynamic effects, both impacts and vibrations..
Specified Calculation of Steady-State Oscillations of Circular Transtropy Plates of Medium Thickness
Authors: Rotko Svitlana , Shvabyuk Volodymyr , Guda Oksana , Uzhehova Olha
Published: August 2019

Specified calculation of steady-state oscillations of circular transtropy plates of medium thickness was performed. The calculation considers transverse displacement deformation and transverse compression effect. Compared to other plate models, such clarifications highly increase calculation accuracy of their stress-strain state. While considering the influence of tangential loads and inertia forces, they do not change equations structure nor increase their order. Obtained equations deal with specification via certain parameters, which depend on characteristics of plate anisotropy and geometry. The calculation order of the equations remains the same, stresses and forces stay similar as in other plate models. At the same time, their accuracy highly increases and becomes close to the results of elasticity theory spatial problem. In case of hinged round plate, the solutions for the free oscillation frequencies are found. Obtained numeric results are compared with corresponding results of classic theory of Kirchhoff’s thin plates. On the basis of these comparisons, the conclusions about significant influence of transverse displacement and compression effects on the magnitude of oscillation frequencies in the direction of their significant decrease are made. This effect is especially noticeable at low transverse physical characteristics of the plate. This conclusion coincides with corresponding results, which were obtained in the monograph of V.T. Grinchenko for a thick plate in a spatial setting.
Calculation of Stresses near Holes in Welded Plates Taking Account of the Residual Deformations
Authors: Maksymovych Olesya , DZYUBYK Andriy , NAZAR Ihor , DZYUBYK Lyudmyla
Published: August 2019

An algorithm for determining the stress state of plates of different shapes with holes due to residual deformations was suggested. The residual stresses in the plates were determined using the calculation and experimental method. The algorithm for determining the stresses the near the holes in the plates due to residual deformations is based on the method of integral equations. The residual stresses and stresses near the holes were investigated. Stresses near circular holes with different distributions of plastic deformations were investigated. Cases were established, where at the boundary of holes, depending on their location, high compression or tensile stresses may arise. Particular, that high compression stresses appear at the point of intersection of the center of the weld with holes or outer boundary, which high compression stresses are approximately the same for all radii of the holes. In case of the radii of the holes that are smaller than the zone of plasticity, high tensile stresses appear, which decrease, when the size of the holes increases. In case of the radii of holes that are larger than the zone of plasticity, the maximum tensile stresses arise at points close to the boundary of the zone of plasticity.
Exact Solution of the Problem of Elastic Bending of a Multilayer Beam under the Action of a Normal Uniform Load
Authors: Koval’chuk Stanislav , Goryk Oleksii
Published: August 2019

An exact solution of the theory of elasticity is presented for the problem of a narrow multilayer bar section transverse bending under the action of a normal uniform load on longitudinal faces. The solution is built using the principle of superposition, by imposing common solutions to the problems of bending a multilayer cantilever with uniform loads on the longitudinal faces and an arbitrary load on the free end, and allows to take into account the orthotropy of the materials of the layers, as well as transverse shear deformation and compression. On the basis of a built-in general solution, a number of particular solutions are obtained for multi-layer beams with various ways of the ends fixing.
Mathematical Theory of Transversally Isotropic Shells of Arbitrary Thickness at Static Load
Authors: Zelensky Anatoly Grigorievich
Published: August 2019

Classical and non-classical refined theories of plates and shells, based on various hypotheses [1-7], for a wide class of boundary problems, can not describe with sufficient accuracy the SSS of plates and shells. These are boundary problems in which the plates and shells undergo local and burst loads, have openings, sharp changes in mechanical and geometric parameters (MGP). The problem also applies to such elements of constructions that have a considerable thickness or large gradient of SSS variations. The above theories in such cases yield results that can differ significantly from those obtained in a three-dimensional formulation. According to the logic in such theories, the accuracy of solving boundary problems is limited by accepted hypotheses and it is impossible to improve the accuracy in principle. SSS components are usually depicted in the form of a small number of members. The systems of differential equations (DE) obtained here have basically a low order. On the other hand, the solution of boundary value problems for non-thin elastic plates and shells in a three-dimensional formulation [8] is associated with great mathematical difficulties. Only in limited cases, the three-dimensional problem of the theory of elasticity for plates and shells provides an opportunity to find an analytical solution. The complexity of the solution in the exact three-dimensional formulation is greatly enhanced if complex boundary conditions or physically nonlinear problems are considered. Theories in which hypotheses are not used, and SSS components are depicted in the form of infinite series in transverse coordinates, will be called mathematical. The approximation of the SSS component can be adopted in the form of various lines [9-16], and the construction of a three-dimensional problem to two-dimensional can be accomplished by various methods: projective [9, 14, 16], variational [12, 13, 15, 17]. The effectiveness and accuracy of one or another variant of mathematical theory (MT) depends on the complex methodology for obtaining the basic equations.
Predictors of time to sputum culture conversion in multi-drug-resistant tuberculosis and extensively drug-resistant tuberculosis in patients at Tshepong-Klerksdorp Hospital
Authors: Ncha Relebohile , Variava Ebrahim , Otwombe Kennedy , Kawonga Mary , Martinson Neil A.
Published: August 2019

Setting: Klerksdorp-Tshepong Hospital Complex MDR-TB Unit, North-West Province, South Africa.Background: To determine the time to sputum culture conversion (TTSCC) and factors predictive of TTSCC in patients with multi-drug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) in the North-West Province.Methods: A retrospective cohort study, abstracting patient demographic and clinical data, laboratory results, dates of sputum testing and sputum culture conversion results, from medical records of 526 MDR-TB and 47 XDR-TB patients started on TB treatment between 01 January 2012 and 31 December 2014. Predictors of TTSCC were determined by Cox proportional hazards regression.Results: The median age was 38 years (interquartile range 31–47) with 64% being male. Overall, 79% (449) were Human Immunodeficiency Virus (HIV)-infected. The median TTSCC was 56.5 days and 162.5 days for MDR-TB and XDR-TB patients, respectively. In the multivariate analysis, age [hazard ratio (HR): 0.89, 95% confidence interval (CI): 0.96–0.99], being underweight (HR: 0.631.61, 95% CI: 0.451.03–0.882.51), Acid Fast Bacilli (AFB) positivity (HR: 0.72, 95% CI: 0.51–1.01) and having XDR-TB (HR: 0.36. 95% CI: 0.19–0.69) were predictive of longer TTSCC.Conclusion: Predictors of TTSC allow for MDR-TB- and XDR-TB-diagnosed patients to be identified early for effective management. Those with risk factors for delayed sputum culture conversion which are being underweight and having XDR-TB should be monitored carefully during treatment so that they can achieve sputum culture conversion early.
Deficiencies in physiotherapy education
Authors: Beenhakker Johnlyne C.
Published: August 2019

A Study was undertaken to determine a curriculum which would best meet the health care needs of South Africa. From the results of the study, the competencies required for effective physiotherapy practice were determined. When comparing the proposed curriculum to training in South Africa, areas of weakness in the present curricula were established. These areas of deficiency are delineated and the methods for improving physiotherapy education are discussed.
The application and development of the objective structured practical examination in evaluating physiotherapy students’ performance at the University of Cape Town
Authors: Hulett Sherril , Gilder Narina
Published: August 2019

The purpose of this paper is to present the development and application of the Objective Structured Practical Examination (OSPE) in evaluating physiotherapy students’ practical performance. This is discussed in terms of station allocation, the circuit of tests and the method of evaluating these tasks. The effects on teaching and examining practical skills are analysed. Recommendations are made for implementation of the system. The goals of greater objectivity and efficiency in examining practical skills seem to be achieved by using OSPE, but these have as yet not been validated scientifically.
Alternative to Dispute Resolution: Ṣàngó and Amadioha and the Nigerian Criminal Justice System
Authors: Nwachukwu M.D. , Alala I.M. , Olua N.E.
Published: August 2019

Sango and Amadioha, the Yoruba and Igbo god of thunder and lightning are the administrators of justice within their domiciled cultural spaces. Before the advent of colonialism which introduces the British common law, African values and custom checkmated corruption and other forms of lawlessness. The adoption of the British legal system as the Nigerian legal system jettisons the African traditional justice system which manages disputes and conflicts within the African socio-cultural space through deities like Sango and Amadioha. The jettison of the African methods of conflict resolutions leads to some of the ambiguities and inconsistencies in the adjudication and delivery of justice experience today in Nigeria. The paper interrogated the modern methods of adjudication which takes its cue from the British common law in contradistinction with African traditional justice system governed by Sango and Amadioha through various texts and argues that the gods, Sango and Amadioha, are purveyors of justice and the standards of their adjudication are premised on the virtues of truth and impartiality; therefore should be adopted as an alternative to dispute resolution. Key Words: African traditional justice, Amadioha, British common law, Sango
Pilot Study of Let’s Get Organized: A Group Intervention for Improving Time Management
Authors: Holmefur Marie , Lidström-Holmqvist Kajsa , Roshanay Afsaneh Hayat , Arvidsson Patrik , White Suzanne , Janeslätt Gunnel
Published: August 2019

Importance: There is a need for evidence-based occupational therapy interventions to enhance time management in people with time management difficulties.

Objective: To pilot test the first part of the Let’s Get Organized (LGO) occupational therapy intervention in a Swedish context by exploring enhancements of time management skills, aspects of executive functioning, and satisfaction with daily occupations in people with time management difficulties because of neurodevelopmental or mental disorders.

Design: One-group pretest–posttest design with 3-mo follow-up.

Setting: Outpatient psychiatric and habilitation settings.

Participants: Fifty-five people with confirmed or suspected mental or neurodevelopmental disorder and self-reported difficulties with time management in daily life.

Intervention: Swedish version of Let’s Get Organized (LGO–S) Part 1, with structured training in the use of cognitive assistive techniques and strategies using trial-and-error learning strategies in 10 weekly group sessions of 1.5 hr.

Outcomes and Measures: Time management, organization and planning, and emotional regulation were measured with the Swedish version of the Assessment of Time Management Skills (ATMS–S). Executive functioning was measured with the Swedish version of the Weekly Calendar Planning Activity, and satisfaction with daily occupations was assessed with the Satisfaction With Daily Occupations measure.

Results: Participants displayed significantly improved time management, organization and planning skills, and emotional regulation, as well as satisfaction with daily occupations. Aspects of executive functioning were partly improved. ATMS–S results were sustained at 3-mo follow-up.

Conclusion and Relevance: LGO–S Part 1 is a promising intervention for improving time management skills and satisfaction with daily occupations and should be investigated further.

What This Article Adds: This study shows that LGO–S Part 1 is feasible for use in psychiatric and habilitation outpatient services. The results are promising for improved time management skills, organization and planning skills, and satisfaction with daily occupations and need to be confirmed in further studies.
Cloud macro-physical properties in Saharan-dust-laden and dust-free North Atlantic trade wind regimes: a lidar case study
Authors: Gutleben Manuel , Groß Silke , Wirth Martin
Published: August 2019

Abstract. The Next-generation Aircraft Remote-Sensing for Validation Studies (NARVAL) aimed at providing a better understanding of shallow marine trade wind clouds and their interplay with long-range-transported elevated Saharan dust layers over the subtropical North Atlantic Ocean.
Two airborne campaigns were conducted – the first one in December 2013 (winter) and the second one in August 2016, the latter one during the peak season of transatlantic Saharan dust transport (summer).
In this study airborne lidar measurements in the vicinity of Barbados performed during both campaigns are used to investigate possible differences between shallow marine cloud macro-physical properties in dust-free regions and regions comprising elevated Saharan dust layers as well as between different seasons.
The cloud top height distribution derived in dust-laden regions differs from the one derived in dust-free regions and indicates that there are less and shallower clouds in the dust-laden than in dust-free trades.
Additionally, a clear shift of the distribution to higher altitudes is observed in the dust-free winter season, compared to the summer season.
While during the summer season most cloud tops are observed in heights ranging from 0.5 to 1.0 km, most cloud tops in winter season are detected between 2.0 and 2.5 km.
Moreover, it is found that regions comprising elevated Saharan dust layers show a larger fraction of small clouds and larger cloud-free regions, compared to dust-free regions.
The cloud fraction in the dust-laden summer trades is only 14 % compared to a fraction of 31 % and 37 % in dust-free trades and the winter season.
Dropsonde measurements show that long-range-transported Saharan dust layers come along with two additional inversions which counteract convective development, stabilize the stratification and may lead to a decrease in convection in those areas.
Moreover, a decreasing trend of cloud fractions and cloud top heights with increasing dust layer vertical extent as well as aerosol optical depth is found.
Glaciohydraulic seismic tremors on an Alpine glacier
Authors: Lindner Fabian , Walter Fabian , Laske Gabi , Gimbert Florent
Published: August 2019

Abstract. Hydraulic processes impact viscous and brittle ice deformation. Water-driven fracturing as well as turbulent water flow within and beneath glaciers radiate seismic waves which provide insights into otherwise hard-to-access englacial and subglacial environments. In this study, we analyze glaciohydraulic tremors recorded by four seismic arrays installed in different parts of Glacier de la Plaine Morte, Switzerland. Data were recorded during the 2016 melt season including the sudden subglacial drainage of an ice-marginal lake. Together with our seismic data, discharge, lake level, and ice flow measurements provide constraints on glacier hydraulics. We find that the tremors are generated by subglacial water flow, in moulins, and by icequake bursts. The dominating process can vary on sub-kilometer and sub-daily scales. Consistent with field observations, continuous source tracking via matched-field processing suggests a gradual upglacier progression of an efficient drainage system as the melt season progresses. The ice-marginal lake likely connects to this drainage system via hydrofracturing, which is indicated by sustained icequake signals emitted from the proximity of the lake basin and starting roughly 24 hours prior to the lake drainage. To estimate the hydraulics associated with the drainage, we use tremor-discharge scaling relationships. Our analysis suggests a pressurization of the subglacial environment at the drainage onset, followed by an increase in the hydraulic radii of the conduits and a subsequent decrease in the subglacial water pressure as the capacity of the drainage system increases. The pressurization is in phase with the drop in the lake level and its retrieved maximum coincides with ice-uplift measured via GPS. Our results highlight the use of cryo-seismology for monitoring glacier hydraulics.
Cryoconite as an efficient monitor for the deposition of radioactive fallout in glacial environments
Authors: Baccolo Giovanni , Łokas Edyta , Gaca Paweł , Massabò Dario , Ambrosini Roberto , Azzoni Roberto S. , Clason Caroline , Di Mauro Biagio , Franzetti Andrea , Nastasi Massimiliano , Prata Michele , Prati Paolo , Previtali Ezio , Delmonte Barbara , Maggi Valter
Published: August 2019

Abstract. Cryoconite is extremely rich in natural and artificial radionuclides, but a comprehensive discussion about its ability to accumulate radioactivity is lacking. A characterization of cryoconite from two Alpine glaciers is presented and discussed. Results confirm that cryoconite is among the most radioactive environmental matrices, with activity concentrations exceeding 10,000 Bq kg−1 for single radionuclides. Atomic and activity ratios of Pu and Cs radioactive isotopes reveal that the artificial radioactivity of Alpine cryoconite is mostly related to the stratospheric fallout from nuclear weapon tests and to the 1986 Chernobyl accidents. The signature of cryoconite radioactivity is thus influenced by both local and more widespread events. The extreme accumulation of radioactivity in cryoconite can be explained only considering the glacial environment as a whole, and particularly the interaction between ice, meltwater, cryoconite and atmospheric deposition. Cryoconite is an ideal monitor to investigate the deposition and occurrence of natural and artificial radioactive species in glacial environment.
Brief communication: A double Gaussian wake model
Authors: Schreiber Johannes , Balbaa Amr , Bottasso Carlo L.
Published: August 2019

Abstract. In this paper, an analytical wake model with a double Gaussian velocity distribution is presented, improving on a similar formulation by Keane et al. The choice of a double Gaussian shape function is motivated by the behavior of the near wake region, observed in numerical simulations and experimental measurements. The method is based on the conservation of momentum principle, while stream-tube theory is used to determine the wake expansion at the tube outlet. The model is calibrated and validated using large eddy simulations replicating scaled wind turbine experiments. Results show that the tuned double Gaussian model is superior to a single Gaussian formulation in the near wake region.
Student Responses to a Tough Early Assessment: A Useful “Kick up the Bum”?
Authors: Wilson Kate , Wilson Kate F
Published: August 2019

First year is a delicate time for students. Many have little idea what to expect of university, and their sense of identity as tertiary students is fragile. A diagnostic assessment early in first semester may reassure students that they have chosen the right path. However, some academics, particularly in engineering, argue that this early assessment should be very demanding – so tough, in fact, that some students fail - in order to alert students to the hard work required to pass the course. This study uses a mixed methods design (weekly surveys and in-depth interviews) to explore the effects of a purposefully tough early assessment on first year engineering students at an Australian university. We find that, across the cohort, the high failure rate was not associated with a significant slump or spike in motivation. Although some students were initially dismayed by their results, most went on to address their study with resilience, and appreciated the “kick up the bum”, as they described it.
Ellipsis licensing and redundancy reduction: A focus-based approach
Authors: Barros Matthew , Kotek Hadas
Published: August 2019

The focus of this paper is the characterization of the identity condition on sluicing. While the formulation of this condition remains an open issue, recent work suggests that sluices are anaphoric to an implicit question or issue that the antecedent raises in the discourse (Q-equivalence approaches, Ginzburg & Sag 2000; AnderBois 2011; 2014; 2016; Barros 2014; Weir 2014; Kotek & Barros 2018). We highlight several challenges to Q-equivalence accounts, and argue instead for a return to focus-based accounts (Rooth 1992a; Romero 1998; Fox 2000; Merchant 2001). Under such an approach, antecedents are importantly not responsible for raising any particular issue/question themselves, a point we show to be a critical challenge to Q-equivalence accounts. We propose instead that sluicing is possible provided that the antecedent and sluice have the same focus-theoretic propositional content. We show that this account is similar to, but improves upon, Merchant’s (2001) influential e-GIVENness account. We extend this account to cases of VP ellipsis, and moreover argue in support of the idea that the theory of ellipsis licensing should be integrated into a more general theory of redundancy reduction. In other words, that the semantic condition on identity in ellipsis is the same as the semantic condition on deaccenting (Rooth 1992a; Tancredi 1992). We propose a generalized condition on redundancy reduction, which may replace Schwarzschild’s (1999) GIVENness condition.
Avaliação de Resultados de Psicoterapia Psicodinâmica Breve em Contextos Institucionais
Authors: Dotta Patricia , Serralta Fernanda Barcellos
Published: August 2019

Esse estudo de casos múltiplos investigou a efetividade da psicoterapia psicodinâmica breve (PPB) e o processo de mudança intra e interpessoal de pacientes atendidos em uma empresa. Participaram do estudo 03 funcionários com queixas psicológicas diversas. A coleta dos dados incluiu medidas de auto relato para a avaliação da mudança da psicoterapia (OQ-45 - Outcome Questionnaire), sintomas psicopatológicos (BSI - Brief Symptom Inventory), mecanismos de defesa (DSQ- 40-Defensive Style Questionnaire) e empatia (EMRI-Escala Multidimensional de Reatividade Interpessoal), aplicadas na 1ª, 6ª e na 12ª sessão (término do tratamento). Em todos os casos foi constatado abrandamento sintomatológico e melhora nos relacionamentos interpessoais e em dois casos as mudanças sintomáticas foram clinicamente significativas e confiáveis. O estudo sugere que a PPB pode promover mudanças significativas na saúde mental dos trabalhadores e que as intervenções mais efetivas são aquelas que incidem sobre crises. Estudos em maior escala são necessários para generalizar os achados.
Efeitos de tarefas de seleção na nomeação de figuras com crianças pequenas de 19 a 29 meses
Authors: Aniceto Gabriela , Postalli Lidia Maria Marson
Published: August 2019

Investigou-se a exposição às tarefas de seleção de figuras diante palavras ditadas seria condição suficiente para emergência de nomeação de figuras. Participaram quatro crianças na faixa etária de 19 a 29 meses com desenvolvimento típico. O delineamento utilizado foi o de múltiplas sondagens entre categorias (animais, frutas e brinquedos). Inicialmente, foi realizada a avaliação de nomeação com os estímulos das categorias; em seguida, as crianças realizaram sessões de ensino da relação entre palavra ditada e figura e sonda de nomeação com a primeira categoria. Após o critério estabelecido, foi realizada a avaliação de nomeação. O procedimento foi repetido com as duas demais categorias. Os resultados demonstraram que o ensino de seleção pode favorecer a nomeação de figuras. Verificou-se variabilidade intra e interparticipantes no desempenho em uma mesma categoria e entre categorias. Sugere-se replicações para avaliar a generalidade dos resultados e as variáveis que contribuam com o aprimoramento do procedimento de ensino.
Envelhecimento e Espiritualidade: o Papel do Coping Espiritual/Religioso em Idosos Hospitalizados
Authors: Esperandio Mary Rute Gomes , Escudero Fabiana Thiele , Fanini Lucille , Macedo Elaine Pinheiro Neves de
Published: August 2019

Embora o índice de envelhecimento da população mundial venha crescendo, isso não implica, necessariamente, longevidade saudável. Estudos que apontem as variáveis que interferem nos resultados em saúde de idosos são relevantes nesse contexto. Com base nos referenciais da Psicologia da Religião sobre envelhecimento e sobre coping espiritual/religioso, foi empreendido um estudo junto a idosos hospitalizados com o objetivo de evidenciar o funcionamento da espiritualidade/religiosidade (E/R) nesse contexto de saúde ameaçada. A metodologia utilizada foi de abordagem quantitativa, descritiva, de corte transversal. Os instrumentos utilizados foram: Escala Breve de Coping Espiritual/Religioso (CER), Escala da Centralidade da Religiosidade, e Questionário para levantamento dos dados sociodemográficos. Participaram do estudo 51 idosos, com média de idade de 71,76 anos, baixa renda econômica (86,3%), predominantemente católicos (68,6%); seguidos dos Evangélicos (23,5%). Os idosos são altamente religiosos (m= 4,3) e 80,4% fazem utilização alta/altíssima de CER Positivo. A despeito da relevância da E/R, 87,3% deles nunca foram abordados sobre questões ligadas à E/R e 41,2% afirmam que gostariam de ter sido. Os resultados confirmam as teorias sobre o papel da E/R nessa fase da vida e indica ser esta uma dimensão relevante a ser integrada na terapêutica por toda a equipe de saúde.
Morphological and germination capacity of Argania spinosa’s (L) Skeels of Algeria South-West population: variability of fruit and stone morphotypes
Authors: Berka Souhila , Himrane Hocine , Maamar Kouidri Kaddour , Taguemount Djamel , Aid Fatiha
Published: August 2019

Aim of study: The purpose of our study is the highlighting of phenotypic variability within the natural population of Argania spinosa (L.) Skeels by morphological characterization of fruits and stones and by evaluation germination capacity of stones.Area of study: The Argan tree stand is located in southwest of Algeria (Tindouf).Material and Methods: The fruits were collected on a sample of 30 mother trees for three consecutive years. We carried out the morpho-biometric characterization (shapes, dimensions and weight) of thirty fruits and thirty stones from each mother-tree, and assessed the germination capacity of the different morphotypes.Main results: We found high variability of morphological characters of fruits and stones between trees. Five fruits shapes (oval, avoid, rounded, spherical and very spherical) and three different stones shapes (oval, avoid and spherical) were identified in mother-trees. The rounded, spherical and very spherical shapes of fruits are the most abundant (82%). High variability in the germination capacity of the different Argan tree genotypes and strong correlation were emphasised between capacity germination and stones shape and dimensions. Multivariate analysis showed that trees with small-sized, spherical stones showed better germination (98%) than trees with larger and elongated (oval) stones (51%). However, no significant difference was found between harvest years for any studied trait.Research highlights: Results of this research allows the selection of mother- trees to improve the production of seedlings in nursery, to successful regeneration and to ensure conservation and sustainable use of the genetic resources of this rare and endangered species.Keywords: Argania spinosa; variability; morphological; fruits; stones; germination capacity.
Understanding Alumni Relations Programs in Community Colleges
Authors: Smith Everrett A. , Gearhart G. David , Miller Michael T.
Published: August 2019

The purpose for conducting the study was to explore and describe the use of alumni societies and associations in community colleges, particularly focusing on the intended outcome of their implementation. To collect data for the study, a research-team developed survey instrument was distributed electronically to 250 community college advancement senior leaders. A total of 106 (42%) usable surveys were returned for use in the study. The results of the data collection and analysis described community college expectations for alumni societies, and that this expectation was primarily focused on fundraising. The societies were also critical, however, in career placement for students, developing career-oriented programs, and reviewing curricula. Survey results also indicated that many community college leaders use alumni societies in creative ways, including assisting in faculty searches, hosting recruitment events, and teaching community education (lifelong learning) courses. Study findings are critical for college leaders who are often faced with difficulties in funding existing or new programing. The respondents to the study illustrated how alumni societies can serve as critical catalysts for improving existing programs and expanding the reach and value of the institution. Findings also suggest that alumni societies are perceived to be strong gateways to developing philanthropic support for institutions.
An Evaluation of the Prevalence of Substance Abuse among Students of Higher Education Institutions in Benue State, North- Central Nigeria: Implications for Counseling
Authors: Onoyase Anna
Published: August 2019

The Investigation was directed towards the prevalence of substance abuse among students of higher education institutions, Benue State North – Central Nigeria. In order to undertake the research, one research question and one hypothesis were formulated to guide the study. The researcher made use of “Prevalence of Substance Abuse among Students Questionnaire” (POSAASQ) to obtain information for the research. The instrument was made up of twenty items. Students responded to substances abused by ticking always (A) 4 points, often (0) 3 points, sometimes (S) 2 points and never (N), 1 point. The reliability coefficient of the instrument was 0.89 while it had content validity and language appropriateness. Six research Assistants were used by the researcher to administer copies of the instrument on the respondents in colleges of education, polytechnics and universities. The mean and standard deviation were used to analyse the data, items 1 – 20. The One – Way Analysis of Variance (ANOVA) was used to test the hypothesis. One of the findings revealed that, there is prevalence of substance abuse among students in colleges of education, polytechnics and universities. Another finding showed that, there is significant difference among students in colleges of education, polytechnics and universities in the prevalence of substance abuse. Some of the recommendations include; the government should formulate laws to guide the consumption of different substances in Nigeria so as to prevent abuse, Authorities of Higher Education Institutions should sensitize students on the dangers of substance abuse through the use of posters and handbills.
The Predictability of Synchronicity Experience: Results from a Survey of Jungian Analysts
Authors: Sacco Robert G.
Published: August 2019

Fibonacci time patterns may predict future synchronistic events (SEs) by forecasting nonlinear dynamical interactions. This study examined if there were differences between observed distributions of Fibonacci time patterns matching SEs compared to expected distributions based on chance. An online survey link was e-mailed to a random sample of Jungian analysts drawn from membership lists of the International Association for Analytical Psychology (IAAP). Two experiments tested the hypothesis that Fibonacci algorithms would predict increased synchronicity matches compared to chance. The two Fibonacci algorithms studied were a golden section model (GSM) and harmonic model (HM). Participants reported a total of 41 synchronicities. Statistical analysis showed a significant difference (p < .001) between observed and expected frequencies of matches based on chance for the HM algorithm, and no significant difference in matches predicted by the GSM algorithm. Synchronicity dynamics were found to exhibit a horizon of predictability between ±34 and ±89 days. The article discusses, among other issues, what these findings might mean for theoretical explanations of synchronicity and clinical practice.
Sustentabilidade em organizações públicas: estudo de uma instituição federal de ensino brasileira
Authors: Dotto Dalva Maria Righi , Feltrin Thiago Schirmer Feltrin , Denardin Adriele Carine Menezes , Ruiz Lúcio de Medeiros Ruiz De Medeiros
Published: August 2019

Objetivo do estudo: verificar a efetividade das ações do Plano de Gestão de Logística Sustentável (PLS) da Universidade Federal de Santa Maria na comunidade acadêmica, através da percepção de seus colaboradores e alunos.  Metodologia/abordagem: pesquisa descritiva, com abordagem quantitativa.Originalidade/relevância: a importância deste estudo concentra-se na perspectiva de contribuir com informações para subsidiar a adequação do PLS da Universidade e, também, para a ampliação da prática de ações sustentáveis.Principais resultados: os resultados apontaram como principal ponto negativo o desconhecimento de um percentual elevado de pesquisados sobre o PLS existente na Instituição e, também, da webpage em que são divulgadas as ações já realizadas e as ações previstas na temática ambiental. Porém, a grande maioria afirma ser importante praticar ações sustentáveis e considera relevante o tema, o que possibilita a exploração dessa tendência positiva de aceitação e participação da comunidade acadêmica para ampliar ações ambientalmente corretas nesta Instituição.Contribuições teóricas/metodológicas: considerando a importância de incluir práticas sustentáveis nas organizações, destacadamente as de caráter público, os resultados do estudo podem ser utilizados por outras organizações públicas, no intuito de que as práticas e os projetos desenvolvidos estejam alinhados com a sustentabilidade.Conclusão: a sustentabilidade nas organizações públicas tem sido praticada de forma mais abrangente com ações que englobam a racionalização do uso de materiais e serviços e, além disso, observa-se um avanço na legislação brasileira com regramento referente a sustentabilidade para uma atuação proativa, com o objetivo de otimizar a utilização dos recursos e proporcionar benefícios para a sociedade.Palavras chave: Sustentabilidade. Plano de Gestão de Logística Sustentável (PLS), organizações públicas. Instituição Federal de Ensino.
Drążenie tuneli technologią TBM
Authors: Komór Kinga , Kołaczyńska Magda , Kosylak Dominika
Published: August 2019

W artykule została scharakteryzowana
metoda wykonania tunelu z wykorzystaniem
technologii TBM. Na przykładzie linii
metra warszawskiego zaprezentowany został
schemat wykonywania prac ta metoda
oraz monitoring bezpieczenstwa przylegajacej
infrastruktury. Metoda ta jest równie
z powodzeniem wykorzystywana do draenia
tuneli drogowych, wodociagowych, kanalizacyjnych,
hydroenergetycznych czy
wielozadaniowych. Za pomoca technologii
TBM utworzono ju 369 projektów tuneli metra
o długosci ponad 880 km, 440 km tuneli
kolejowych i 171 km drogowych. Łacznie ta
technologia wydraono ponad 1900 km tuneli
na całym swiecie [7].
Przewanie jest ona bardziej ekonomiczna
i efektywna w stosunku do metod tradycyjnych
(odkrywkowych). Nie powoduje nadmiernych
utrudnien w komunikacji transportu
ulicznego, a w ciagu doby może powstac
nawet trzykrotnie dłuższy tunel, aniżeli ten
wykonany w tradycyjny sposób. Ponadto, co
istotne z punktu widzenia ekonomicznego,
całkowity koszt wydrażenia metra technologia
TBM jest niższy [7].
Digitization in construction
Authors: Tryfon-Bojarska Anna , Wińska Ewelina
Published: August 2019

The fourth industrial revolution leads to a comprehensive digital transformation of enterprises. Its nine pillars also affect the construction industry. This article presents the impact of digital transformation on innovative projects which are implemented in the construction industry. It describes examples of digital innovations that are used in the life cycle of a property development undertaking, as well as examples and case studies of applied innovative project management models.
Effects of Astragalus membranaceus roots supplementation on growth performance, serum antioxidant and immune response in finishing lambs
Authors: Hao Xiaoyan , Wang Pengju , Ren Youshe , Liu Gentang , Zhang Jianxin , Leury Brian , Zhang Chunxiang
Published: August 2019

Objective: Astragalus membranaceus root is a well-known traditional Chinese herbal medicine with many biological active constituents. This study was conducted to examine the effects of Astragalus membranaceus root powder (AMP) on growth performance, serum antioxidant and immune response in finishing lambs.Methods: A total of thirty-six Guangling fat-tailed ram lambs (body weight = 19±2 kg, mean ±standard deviation) were randomly assigned to one of six treatments for a 40 d feeding period, with the first 10 d for adaptation. Treatments consisted of the lambs’ basal diets with addition of 0, 5, 10, 15, 20, and 30 g/kg of diet of AMP.Results: Response to supplementation level of AMP was quadratic (p≤0.032) for final weight and ADG with the greatest at 10 g/kg of diet, but dry matter intake was not affected (p≥0.227) by treatments. The increase of AMP supplementation resulted in a quadratic response in contents of triglyceride and creatinine (p<0.05), with the lowest values for 10 and 20 g/kg of diet, respectively. A linear and quadratic decrease was observed in activity of alkaline phosphatase in serum of lambs. As the AMP supplementation increased, the activities of total superoxide dismutase and total antioxidant capacity increased linearly (p≤0.018) and hydroxyl radical (OH–) decreased linearly (p = 0.002). For catalase (CAT) and malondialdehyde (MDA), quadratic (p≤0.001) effects were observed among treatments, with the greatest CAT and lowest MDA values at 10 g/kg AMP. Additionally, supplementing AMP up to a level of 10 or 15 g/kg of diet quadratically increased immunoglobulin and interleukin contents in the serum.Conclusion: The results indicated that AMP can be used as natural feed additive in the ration of lambs to improve ADG, antioxidant status, and immune functions, and the optimal dose was 10 g/kg of diet under the condition of this experiment.