bluuebunny/crossref_metadata_2025 huggingface dataset:
Eguraldiaren gramatika euskaraz eta Gramatikaren Teoria / Meteorological expressions in Basque grammar and the Theory of Grammar
Authors: Arteatx Iñigo , Artiagoitia Xabier
Published: February 2019

Artikulu honek bi ekarpen esanguratsu egiten ditu euskarazko eguraldi espresioen alorrean: batetik, erakusten du Eriksen, Kittilä eta Kolehmainen (2010) tipologia lanaren argitara euskarak eguraldi espresioetan joera duela argumentu tipora jotzeko prezipitazio gertaerak eta gertaera dinamikoak adieraztekoan eta argumentu tipoa eta predikatu tipoa baliatzen dituela gainerako eguraldi gertaeretan; azpimarratzekoa da euskarak zenbait kasutan NOR-NORK motako egitura iragankorrak baliatzen dituela tipo bietan, tipologikoki bakana dena. Bestetik, Gramatika Teorian izan diren eztabaidagai nagusi biri dagokienez, erakusten dugu (a) euskaran eguraldi aditzak noiz ezakusatibo noiz ezergatibo zein iragankor izan daitezkeela Bleotuk (2015) oro har iradoki duen bezala; eta (b) egitura iragankorretan sumatzen den pro subjektu isila ez dela espletiboa, eta hurbil dagoela egiazko argumentua izatetik (Chomsky 1981, Krejci 2014).
Arabako herri izenen azentueraz / On the accentuation of Basque place names in Álava
Authors: De Olano Martinitz-Xil Garazi , Elordieta Gorka
Published: February 2019

Lan honetan Arabako herri izenek gazteleraz erakusten duten azentuera aztertzen da. Badira izen asko azentua hitzaren hasieratik gertuago dutenak hitz bukaeratik baino (adibidez Gardélegi, Etxábarri, Arrízala, Olábezar, Róitegi, Gújuli, eta abar). Beste izen askok, ordea, azentua azkenaurreko silaban dute: Aretxabaléta, Egiléta, Maturána, Urtupíña, Arenáza, Zubillága, Elorriága, Larrinóa, etab. Ezkerralderagoko azentuera ez dator bat gazteleraz nagusi den patroiarekin, hau da, azentua azkenaurreko silaban ezartzen duenarekin. Gure analisia da azentua euskal erroaren azken silaban ezartzen dela. Beraz, hitz elkartuen osaera duten toponimoetan, azentua lehen erroaren azken silaban ezartzen da, eta erro + atzizki(ak) egiturako toponimoetan, erroaren azken silaban. Erdal jatorrizko herri izen gehienek azkenaurreko silaban dute azentua, gazteleraz ohikoena den azentu kokagunean.
Hots-aldaketaren inguruan / About sound change
Authors: Oñederra Miren Lourdes
Published: February 2019

Hugo Schuchardtek «Über die Lautgesetze: Gegen die Junggrammatiker» lanean neogramatikoei egiten dien kritika du lan honek abiapuntu. Kritika horiek burutzeko arrazoibideetan badira egunerokotasunik galdu ez duten ideia interesgarri zenbait. Neogramatikoek aldarrikatutako hots aldaketen salbuespengabetasunaren aurka, Schuchardtek hizkuntzaren aldagarritasuna eta hots-aldaketen alderdi mentalak azpimarratzen ditu. Artikuluaren 3. atalean ahoskeraren esplikazio guztiz fonetikoen aurrean Fonologia Naturalak hots aldaketaren funts mentalaz dioena azaltzen da, Schuchardten argudioen gaurkotasuna nabarmenduz. Euskararen fonema inbentarioan gertatzen ari diren unitate gehitze edo murrizte batzuk aipatzen dira adibide moduan (§ 3.2). Azkenik (§ 4) hausnarketa laburra egiten da hots aldaketak irekita uzten dizkigun galderen inguruan.
La lengua del hierro. Nexos medievales entre Álava y la Demanda / The language of iron. Medieval links between Alava and the Demanda
Authors: Peterson David
Published: February 2019

In the early medieval documentation that refers to the Upper Ebro valley we encounter an abundance of references to both iron and smiths, but silence with regard to furnaces or forges. This leads us to a series of considerations about the essentially precarious and rural nature of early iron-working, in accordance with a series of recent studies on northern Iberia. In this same documentation we observe that, above all others, two areas on opposite flanks of the Ebro valley and separated by almost one hundred kilometres are repeatedly associated with iron-working: Álava and the Sierra de la Demanda. They are, moreover, two regions linked in this period by human migration, evidenced above all by its linguistic consequences: the Álava dialect flourishing in the Demanda in this period. We hypothesise that the influx of Alavese population into the Demanda might well have contributed to its metallurgical pre-eminence, although this is also clearly conditioned by the geology of the area.
Nondik datoz gaur egun hain ohikoak diren hipersentiberatasun-arazoak? Higienearen Hipotesia eta Mikrobiotaren Hipotesia
Authors: Soraluze Maider , Gurruchaga Haritz , Saenz del Burgo Laura
Published: February 2019

Berrikuspen honetan, gaur egun geroz eta intzidentzia handiagoa duten eta herrialde garatuetako osasun-arazo garrantzitsu bilakatu diren hipersentiberatasun-arazoen jatorria aztertzen da. Horretarako, hipersentiberatasun-arazoen jatorriaren inguruan sortutako hipotesi nagusiak azaltzen dira: «Higienearen hipotesia» eta «Mikrobiotaren hipotesia» edo «Old Friends mechanism». Azken urteetan, Higienearen hipotesia atzean utzi, eta Mikrobiotaren hipotesia hobestera pasa izana argudiatzen da. Gainera, higiene-neurriek populazio handietako gaixotasun infekziosoen prebentzioan duten garrantzia, eta «higiene» kontzeptuaren gainean dagoen gaizki-ulertua argitzen dira. Azkenik, hipersentiberatasun-arazoen gainean eragiten duten faktore garrantzitsuenez hitz egiten da, antibiotikoen gehiegizko erabilera eta dieta desegokitik hasi eta faktore genetikoetaraino. Laburbilduz, hipersentiberatasun-arazoen jatorriaren gakoa gizakion modernizazio-prozesuan dagoela esan daiteke: urbanizazio eta industrializazio masiboan, bizi-ohitura desegokietan eta mediku praktika inbasiboen neurriz kanpoko erabileran, besteak beste.
Role of Multimodal Cardiac Imaging in Diagnosing a Primary Intimal Sarcoma of the Left Atrial Appendage
Authors: Raphael Kara L. , Martinez Anthony P. , Clements Stephen D. , Isiadinso Ijeoma
Published: February 2019

Primary cardiac tumors are rare, and most are benign. Intimal sarcomas are among the rarest of the malignant cardiac tumors; they are aggressive and associated with a poor prognosis. Whereas transesophageal echocardiography has been instrumental in evaluating cardiac masses, other imaging methods, such as cardiac magnetic resonance, have proved invaluable in accurately characterizing these masses. We present the case of a 49-year-old woman in whom we diagnosed a primary intimal sarcoma of the left atrial appendage, and we discuss the importance of multimodal imaging in the evaluation and diagnosis of cardiac masses.
Coxsackie B2 Virus Infection Causing Multiorgan Failure and Cardiogenic Shock in a 42-Year-Old Man
Authors: Hopkins Kali A. , Abdou Mahmoud H. , Hadi M. Azam
Published: February 2019

Infections from coxsackie B2 viruses often cause viral myocarditis and, only rarely, multisystem organ impairment. We present the unusual case of a 42-year-old man in whom coxsackie B2 virus infection caused multiorgan infection, necessitating distal pancreatectomy, splenectomy, renal dialysis, and venoarterial extracorporeal membrane oxygenation with mechanical ventilation. In addition, the patient had a rapid-eye-movement sleep–related conduction abnormality that caused frequent sinus pauses of longer than 10 s, presumably due to myocarditis from the coxsackievirus infection. He recovered after permanent pacemaker placement and was discharged from the hospital. We discuss our aggressive supportive care and the few other reports of multiorgan impairment from coxsackieviruses.
Surgical Repair of a 13-cm Infrarenal Abdominal Aortic Aneurysm with Aortocaval Fistula in a 63-Year-Old Tuba Player
Authors: Bitargil Macit , Bektas Nilufer , Omeroglu Sinan , Koramaz Ismail
Published: February 2019

Infrarenal abdominal aortic aneurysm with aortocaval fistula, a rare condition, can be fatal without prompt intervention. The clinical symptoms are complex and varied, so diagnosis is typically confirmed by use of contrast-enhanced multidetector computed tomography. We report our surgical repair of a 13-cm-diameter infrarenal abdominal aortic aneurysm and aortocaval fistula in a 63-year-old orchestral tuba player who had 2 classic symptoms of the condition. The unruptured aneurysm and fistula were complicated by acutely angled vessels, so we performed surgery rather than endovascular repair. The patient recovered fully and was discharged from the hospital. This infrarenal aneurysm with aortocaval fistula is perhaps the largest to have been treated successfully by means of open surgery. In addition to our patient's case, we discuss the history and treatment considerations of this rare combined condition.
Influence of ICT Media and Critical Thinking Ability to the Ability of Literacy Science Literacy Students Elementary School
Authors: Prawira Muhammad Jiyad , Cahyana Ucu , Bagaskorowati Riana
Published: February 2019

This study aims to find the influence of ICT media and the ability to think critically about science literacy skills of elementary school students. This research was conducted in class V SDN Kebon Kacang 01 Jakarta. The research design used
experimental method with treatment by level 2 x 2. Data analysis was carried out using 2-way variance analysis (ANOVA). The results of this study are (1) the existence of different literacy skills of students who learn to use ICT Flash media with ICT
Power Point Media. (2) There is an interaction between ICT media and critical thinking ability to science literacy ability of elementary school students. (3) Science literacy ability of students who have high critical thinking ability using ICT Flash
media is higher than students having high critical thinking ability using ICT Power Point Media. (4) science literacy ability of students with low critical thinking ability using ICT Flash media is lower than students having low critical thinking
ability using ICT Power Point Media.
Conservation in ongoing analogical change: The measurement and effect(s) oftokenfrequency
Authors: Krause-Lerche Anne
Published: February 2019

In a number of studies of analogical levelling, it has been found that the conservation of irregular formation patterns is typically correlated with the token frequency of the members of a changing class. Interestingly, although it was suggested decades ago that this “conserving effect” of high token frequency may also affect ongoing analogical change, only one case of a change-in-progress in morphology has been investigated so far. Moreover, instead of scrutinizing the concept of frequency, previous research has largely taken the importance of lemma token frequency for granted. The present contribution analyses a case of ongoing analogical levelling in the formation of the imperative singular of German strong verbs with e/i-gradation. A corpus-based study is used to test whether the phenomenon is rightly classified as ongoing change and whether and which frequency variables can explain the trajectory of this change. Evidence is presented that justifies the assumption of a conserving effect of token frequency in ongoing morphological change; however, the study stresses the importance of reconsidering the concept of frequency for different languages and different phenomena of change because even measures likelemma token frequencyare not as indisputable as they seem.
The "hot spots" conjecture on the Vicsek set
Authors: Ionescu Marius , Savage Thomas L.
Published: February 2019

We prove the “hot spots” conjecture on the Vicsek set. Specifically, we will show that every eigenfunction of the second smallest eigenvalue of the Neumann Laplacian on the Vicsek set attains its maximum and minimum on the boundary.
A generalized Walsh system for arbitrary matrices
Authors: Harding Steven N. , Picioroaga Gabriel
Published: February 2019

In this paper we study in detail a variation of the orthonormal bases (ONB) of L2[0, 1] introduced in [Dutkay D. E., Picioroaga G., Song M. S., Orthonormal bases generated by Cuntz algebras, J. Math. Anal. Appl., 2014, 409(2), 1128-1139] by means of representations of the Cuntz algebra ON on L2[0, 1]. For N = 2 one obtains the classic Walsh system which serves as a discrete analog of the Fourier system. We prove that the generalized Walsh system does not always display periodicity, or invertibility, with respect to function multiplication. After characterizing these two properties we also show that the transform implementing the generalized Walsh system is continuous with respect to filter variation. We consider such transforms in the case when the orthogonality conditions in Cuntz relations are removed. We show that these transforms which still recover information (due to remaining parts of the Cuntz relations) are suitable to use for signal compression, similar to the discrete wavelet transform.
Analytic functions in the unit ball of bounded L-index in joint variables and of bounded 𝐿-index in direction: a connection between these classes
Authors: Bandura Andriy , Skaskiv Oleh
Published: February 2019

We give negative answer to the question of Bordulyak and Sheremeta for more general classes of entire functions than in the original formulation: Does index boundedness in joint variables for an entire function F imply index boundedness in the variable zj for the function F? This question is addressed for entire functions of bounded L-index in joint variables and entire functions of bounded L-index in direction. We also present a class of analytic functions in the unit ball which has bounded L-index in joint variables and has unbounded l-index in the variables z1 and z2 for any positive continuous function l : B2 → C.
Pediatric faculty knowledge and comfort discussing diagnostic errors: a pilot survey to understand barriers to an educational program
Authors: Grubenhoff Joseph A. , Ziniel Sonja I. , Bajaj Lalit , Hyman Daniel
Published: February 2019

Background

Improving Diagnosis in Healthcare calls for improved training in diagnostic reasoning and establishing non-judgmental forums to learn from diagnostic errors arising from heuristic-driven reasoning. Little is known about pediatric providers’ familiarity with heuristics or the culture surrounding forums where diagnostic errors are discussed. This study aimed to describe pediatric providers’ familiarity with common heuristics and perceptions surrounding public discussions of diagnostic errors.

Methods

We surveyed pediatric providers at a university-affiliated children’s hospital. The survey asked participants to identify common heuristics used during clinical reasoning (five definitions; four exemplar clinical vignettes). Participants answered questions regarding comfort publicly discussing their own diagnostic errors and barriers to sharing them.

Results

Seventy (30.6% response rate) faculty completed the survey. The mean number of correctly selected heuristics was 1.60/5 [standard deviation (SD)=1.13] and 1.01/4 (SD=1.06) for the definitions and vignettes, respectively. A low but significant correlation existed between correctly identifying a definition and selecting the correct heuristic in vignettes (Spearman’s ρ=0.27, p=0.02). Clinicians were significantly less likely to be “pretty” or “very” comfortable discussing diagnostic errors in public vs. private conversations (28.3% vs. 74.3%, p<0.01). The most frequently cited barriers to discussing errors were loss of reputation (62.9%) and fear of knowledge-base (58.6%) or decision-making (57.1%) being judged.

Conclusions

Pediatric providers demonstrated limited familiarity with common heuristics leading to diagnostic error. Greater years in practice is associated with more comfort discussing diagnostic errors, but negative peer and personal perceptions of diagnostic performance are common barriers to discussing errors publicly.
Optimal Control of a Dispatchable Energy Source for Wind Energy Management
Authors: D’Amico Guglielmo , Petroni Filippo , Sobolewski Robert Adam
Published: February 2019

The major drawback of wind energy relies in its variability in time, which necessitates specific strategies to be settled. One such strategy can be the coordination of wind power production with a co-located power generation of dispatchable energy source (DES), e.g., thermal power station, combined heat and power plant, gas turbine or compressed air energy storage. In this paper, we consider an energy producer that generates power by means of a wind park and of a DES and sells the produced energy to an isolated grid. We determine the optimal quantity of energy produced by a DES, given the unit cost of this energy, that a power producer should buy and use to hedge against the risk inherent in the production of energy through wind turbines. We determine the optimal quantity by solving a static optimization problem taking into account the possible dependence between the amount of energy produced by wind turbines and electricity prices by using a copula function. Several particular cases are studied that allow the determination of the optimal solution in an analytical closed form. Finally, a numerical example concerning a real 48 MW wind farm located in Poland and Polish Power Exchange shows the possibility of implementing the model in real-life problems.
Solvability of interior transmission problem for the diffusion equation by constructing its Green function
Authors: Nakamura Gen , Wang Haibing
Published: February 2019

Consider the interior transmission problem arising in inverse boundary value problems for the diffusion equation with discontinuous diffusion coefficients.
We prove the unique solvability of the interior transmission problem by constructing its Green function.
First, we construct a local parametrix for the interior transmission problem near the boundary in the Laplace domain, by using the theory of pseudo-differential operators with a large parameter.
Second, by carefully analyzing the analyticity of the local parametrix in the Laplace domain and estimating it there, a local parametrix for the original parabolic interior transmission problem is obtained via the inverse Laplace transform.
Finally, using a partition of unity, we patch all the local parametrices and the fundamental solution of the diffusion equation to generate a global parametrix for the parabolic interior transmission problem and then compensate it to get the Green function by the Levi method.
The uniqueness of the Green function is justified by using the duality argument, and then the unique solvability of the interior transmission problem is concluded.
We would like to emphasize that the Green function for the parabolic interior transmission problem is constructed for the first time in this paper.
It can be applied for active thermography and diffuse optical tomography modeled by diffusion equations to identify an unknown inclusion and its physical property.
Mackenzie River Peregrine Falcon Surveys 1966–2018
Authors: Hodson Keith
Published: February 2019

The author with assistants monitored the breeding distribution of Peregrine Falcons (Falco peregrinus) along the length of the Mackenzie River, Northwest Territories, Canada from 1966 to 2018. This river traverses a thousand miles (1600 km) of the western Canadian Arctic from Great Slave Lake to the Beaufort Sea and roughly parallels the eastern slope of the Mackenzie Mountain cordillera between latitudes 61 degrees N and 68 degrees N.

All potential nest sites have been checked on each survey and counts of nest sites occupied (at least one bird seen) decreased from the count of 12 sites in 1966 to the lowest count of 7 in 1972. In 1990 the count was 37 and up to 2018 the highest count was 75 in 2010.

A count of nest sites successfully producing young was variable with a low of 5 in 1972 to a high of 58 in 2011. Production of young averaged 2.43/successful site from 1990 until 2018 (excluding 2012). Production of young averaged 1.4/occupied site over this period. Recent increases in availability of passerine prey because of widespread fires in the last decades are felt to be the latest phenomena affecting these birds (pers.obs.) Prey utilized by Peregrines was studied over a period of four years and passerines composed 20% of their diet. Two species Lesser Scaup (Athya affinis) and Lesser Yellowlegs (Tringa flavipes) formed 25% of their diet.
Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034
Authors: Falk Knud , Møller Søren , Rigét Frank F. , Sørensen Peter B. , Vorkamp Katrin
Published: February 2019

The DDT-induced effects, eggshell thinning and breeding failure in Peregrine Falcon (Falco peregrinus) populations were reverted with restrictions on the use of the compound from the 1970s, and in most studied populations, the eggshell thickness is back to normal. In Greenland, a previous study of eggshell thinning in Peregrines found that shells had not yet reached pre-DDT levels. In this study, we extend the time series and reinterpret shell thinning data for 196 clutches covering a 45-year time span (1972–2017). There was a significant (P<0.001) increase in the eggshell thickness of 0.23% per year. This corresponds to a change in eggshell thinning from 14.5% to 5.4% in 2017 compared to the pre-DDT mean. With the current rate of change, pre-DDT shell thickness is predicted to be reached around the year 2034. However, a few clutches are still below the critical limit. The relatively slower recovery of the shell thickness in the Greenland population is likely indicative of the slower phasing out of DDT in the Greenlandic Peregrines’ wintering grounds in Latin America. The shell thinning in the Greenlandic population probably never crossed the 17% threshold associated with population declines, contrary to the populations in many other parts of the world.
Stimulus-Driven Brain Rhythms within the Alpha Band: The Attentional-Modulation Conundrum
Authors: Keitel Christian , Keitel Anne , Benwell Christopher S.Y. , Daube Christoph , Thut Gregor , Gross Joachim
Published: February 2019

Two largely independent research lines use rhythmic sensory stimulation to study visual processing. Despite the use of strikingly similar experimental paradigms, they differ crucially in their notion of the stimulus-driven periodic brain responses: one regards them mostly as synchronized (entrained) intrinsic brain rhythms; the other assumes they are predominantly evoked responses [classically termed steady-state responses (SSRs)] that add to the ongoing brain activity. This conceptual difference can produce contradictory predictions about, and interpretations of, experimental outcomes. The effect of spatial attention on brain rhythms in the alpha band (8–13 Hz) is one such instance: alpha-range SSRs have typically been found to increase in power when participants focus their spatial attention on laterally presented stimuli, in line with a gain control of the visual evoked response. In nearly identical experiments, retinotopic decreases in entrained alpha-band power have been reported, in line with the inhibitory function of intrinsic alpha. Here we reconcile these contradictory findings by showing that they result from a small but far-reaching difference between two common approaches to EEG spectral decomposition. In a new analysis of previously published human EEG data, recorded during bilateral rhythmic visual stimulation, we find the typical SSR gain effect when emphasizing stimulus-locked neural activity and the typical retinotopic alpha suppression when focusing on ongoing rhythms. These opposite but parallel effects suggest that spatial attention may bias the neural processing of dynamic visual stimulation via two complementary neural mechanisms.

SIGNIFICANCE STATEMENTAttending to a visual stimulus strengthens its representation in visual cortex and leads to a retinotopic suppression of spontaneous alpha rhythms. To further investigate this process, researchers often attempt to phase lock, or entrain, alpha through rhythmic visual stimulation under the assumption that this entrained alpha retains the characteristics of spontaneous alpha. Instead, we show that the part of the brain response that is phase locked to the visual stimulation increased with attention (as do steady-state evoked potentials), while the typical suppression was only present in non-stimulus-locked alpha activity. The opposite signs of these effects suggest that attentional modulation of dynamic visual stimulation relies on two parallel cortical mechanisms—retinotopic alpha suppression and increased temporal tracking.
Planificación de un sistema de gestión integrado para una organización de investigación agropecuaria
Authors: Zambrano Farías José Iván
Published: February 2019

This research paper shows the approach to structure a quality management and integrated environmental management system under the technical standards ISO 9001:2015 and ISO 14001:2015, in a public agricultural research organization that produces seeds and studies to contribute to Ecuador’s food safety. The importance of the research lies in the social impact that the organization has on the production of seeds, which will become food for the population. Through the structuring of an integrated management system, the image will be consolidated before the interested parties, generating confidence and guaranteeing that the products and services they deliver comply with international standards of environmental and quality management. To achieve the structuring of the Integrated Management System (SGI), an individual analysis of the environmental management and quality management models is conducted to find convergences enabling the proposal of an integrated management model, under the requirements of technical standards ISO 9001:2015 and ISO 14001:2015. Then, a situational diagnosis is made to the organization, to determine the current status regarding quality and environmental management, in accordance with the requirements established by the technical standards ISO 9001:2015 and ISO 14001:2015, becoming a starting point for structuring the system and its subsequent implementation. As a result, an integrated management system with four phases that must be applied sequentially, is obtained. Two phases were applied in the present research study.
Medición del work engagement y su relación con la comunicación, liderazgo y TIC en una empresa editorial mexicana
Authors: Pérez Juárez Javier , Pedraza-Nájar Ximena Lucía
Published: February 2019

The purpose of this paper is to analyze the importance of Work Engagement (called from now on Work Commitment) and its relationship with communication, leadership and the information and communication technologies’ use, variables that influence the workers behavior. These variables require statistical analysis validated by the analysis of the Cronbach's alpha coefficient, subsequently the variables rank correlation concerning the commitment at work within a Spearman's rho correlation coefficient, finally the range identification and its checking general measurement. The mixed research method was used because of its characteristics, since the qualitative and quantitative approach helps to explain clearly the executed phenomenon. The results obtained shows that two of the variables analyzed have significant influence on the commitment at work, which gives a guideline to the Publishing Company to perform corrective actions looking to improve the workers commitment.
Estrategia de responsabilidad social empresarial de una terminal portuaria en Barranquilla, Colombia
Authors: Lechuga-Cardozo Jorge Isaac
Published: February 2019

El presente artículo es producto de una investigación cuyo objetivo es caracterizar las acciones en responsabilidad social empresarial que practica una terminal portuaria para posteriormente proponer acciones correctivas que ayuden al sostenimiento de este tipo de iniciativas. Se aplicó el método de análisis, con un enfoque cualitativo, de tipo descriptivo bajo un diseño documental, bibliográfico. Tras el análisis de los datos se encontró que la compañía goza de un marco ético basado en valores y principios corporativos alineados a su actividad económica, realizando acciones sociales desde cuatro pilares que responden a las dimensiones social, económica y ambiental; no obstante, se requiere fortalecer la instrumentación de medios interactivos y mediáticos. Como conclusión se sugiere a la terminal replicar los modelos de Bolívar y Sucre que le han hecho merecedores de distinciones, e integrar la inteligencia colectiva en su estrategia de responsabilidad social que le permita desarrollar en los empleados competencias como: la cooperación, el trabajo en equipo y el enfoque integrativo.
EVALUATION OF THE METROLOGICAL PARAMETERS OF METHODS FOR QUANTITATIVE DETERMINATION OF ACTIVE MICROBIAL STRAINS OF GENERA PSEUDOMONAS AND BACILLUS IN THE AIR OF BIOTECHNOLOGICAL PRODUCTION ZONE
Authors: Dudchik Natalia , Filаnyuk Vasiliy , Shevlyakov Vitaliy , Sychik Sergei
Published: February 2019

Provision of safety and sanitary-hygienic control of biotechnological processes poses a special medical-biological challenge requiring elaboration and metrological assessment of quantitative methods, which determine concentrations of microorganisms-producers in air of manufacturing zone in compliance with the criteria of the International Organization for Standardization. The results of experimental modeling of microbial sprays comprising bacteria of genera Bacillus and Pseudomonas in air of the production zone as the risk factor affecting health of bioindustry employees have enabled to calculate metrological parameters of methods to control microorganisms-constituents of monocomponent and bicomponent biological preparations. Such metrological parameters (standard deviation of repeatability, standard deviation of intermediate precision, expanded uncertainty) match the requirements set to the measurement methods at the accepted confidential probability level p=95 % and ensure proper control of biotechnological processes.
THE IN VITRO EFFECT OF THE ORIGANUM VULGARE EXTRACT ON SEMEN
Authors: Ďuračka Michal , Galovičová Lucia , Slávik Marek , Árvay JÃºlius , Tvrdá Eva
Published: February 2019

Origanum vulgare is a medicinal and aromatic plant that has found its use all over the world. Male reproduction involves complicated morphological and physiological processes such as spermatogenesis and gamete transport into the male genital organs. The aim of this study is focused on the in vitro effect of the Origamium vulgaris on the motility, vitality and evaluation of the formation of free radicals. The heterospermic rabbit samples were diluted with culture medium supplemented with the extract of Origamium vulgaris at concentrations of 37.5; 75; 150 and 300 μg/mL evaluated at time intervals of 0, 2 and 8h. Selected chemical compounds were determined through HPLC-DAD method. From the analysed phenolic acids, rosmarinic acid was the predominant component, from flavonoids it was Cynarosid. Sperm motility was analysed using CASA (Computer-aided Sperm Analysis). The viability was analysed by the MTT (Mitochondrial Toxicity Test) test.
The determination of ROS (Reactive Oxygen Species) quantity was observed through luminol method. The results showed significant decreases of motility and viability at concentrations of 300 and 150 μg/mL in various time periods and the ROS quantity was without any significant differences during all the experiment. We conclude that chemical composition of the Origanum extract may damage structure and function of spermatozoa. Based on this findings, we did not suggest the Origanum extract as a supplement in spermatozoa medium.
DEVELOPMENT OF BISCUITS BY PARTIAL SUBSTITUTION OF REFINED WHEAT FLOUR WITH CHICKPEA FLOUR AND DATE POWDER
Authors: Dhankhar Jyotika , Vashistha Neha , Sharma Asha
Published: February 2019

The current investigation was undertaken to optimize the process for development of biscuits using composite flours prepared by addition of chickpea flour and date powder to refined wheat flour. Composite flours utilized in biscuit manufacture were obtained by mixing refined wheat flour, chickpea flour and date powder in different ratios as 100:0:0 (T¬0), 80:10:10 (T¬1), 60:20:20 (T¬2), 40:30:30 (T¬3) and 20:40:40 (T¬4) respectively. The flours were analyzed for their physico-chemical as well as functional properties. Of all the flours studied, chickpea flour had the highest value for ash, fat and protein content as 3.30%, 5.40 % and 21.88% respectively. Date powder contained highest crude fiber content (9.05%) but lowest protein content (1.96%). Refined wheat flour had highest values for most functional properties like water absorption capacity (158%), oil absorption capacity (139.60%) and bulk density (0.95 g/ml). Foaming capacity and LGC were observed to be highest for chickpea and date powder respectively. There was no significant difference (p>0.05) was observed in diameter and thickness of different biscuit samples however, spread ratio and spread factor differed significantly (p
Suitability of texture parameters for characterization of Hajdú cheese ripening
Authors: Bara-Herczegh O. , Horváth-Almássy K. , Csanádi J. , Örsi F.
Published: February 2019

The objectives of this study were to monitor the changes in texture parameters of Hajdú cheese during ripening and shelf-life, and to determine the correlations between the changes in instrumental texture parameters and the age or sensory properties of the product. The mechanical parameters of Hajdú cheese samples made by 5 different manufacturing processes were determined with a QTS 25 Texture Profile Analyser. In addition to mechanical tests, composition analyses and sensory tests were performed. The empirical results of the mechanical tests were evaluated with statistical methods (single-valued and multivariate analysis). The age of the product can be estimated from the texture parameters and processed data as well, despite the sample inhomogeneity, which is due to the manufacturing processes.
Beneficial properties of black radish root (Raphanus sativus L. Var. niger) squeezed juice in hyperlipidemic rats: Biochemical and chemiluminescence measurements
Authors: Kocsis I. , Lugasi A. , Hagymási K. , Kéry Á. , Fehér J. , Szõke É. , Blázovics A.
Published: February 2019

In in vitro studies it was detected that the juice from the choleretic black radish root had hydrogen donating and d-field element-chelating abilities. The juice exhibited strong reducing power property and radical scavenging effect in H2O2/∙OH luminol system.

With the help of short term animal experiment we examined the in vivo effect of Raphanus sativus root juice on hyperlipidemia in rats.

A chemiluminescent study was applied to determine the total scavenger activity (TSC) of erythrocytes and plasma of untreated and treated animals. We also determined the different liver enzyme activities: alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) and metabolite concentrations (cholesterol, triacylglycerols, total bilirubin, glucose) by spectrophotometry in the sera.

In our study, using experimental hyperlipidemic condition, it has been detected that black radish root juice could moderate the injurious effect of lipid rich diet in rats in vivo.
Uma Revisão de Literatura sobre o Uso da Experimentação Investigativa no Ensino de Química
Authors: Pereira Neves Gonçalves Raquel , Jappe Goi Mara Elisângela
Published: February 2019

Este trabalho apresenta uma revisão de literatura sobre a Experimentação Investigativa no Ensino de Química nos artigos do Encontro Nacional de Pesquisa em Educação em Ciências (ENPEC) de 2011, 2013 e 2015. Para essa revisão foram realizadas as leituras nos artigos relacionados com a temática em que emergiram quatro categorias de análise: (i) Experimentação Investigativa; (ii) Revisão de Literatura sobre Experimentação; (iii) Experimentação na Formação Inicial e Continuada de Professores e (iiii) Experimentação no Ensino de Química a partir de Temática Específica. Nesta investigação foram encontrados cinquenta (50) artigos sobre Experimentação Investigativa em Química. Com a leitura dos artigos, pode-se constatar que a Experimentação Investigativa está sendo implementada na Educação Básica. Nesse documento tratar-se-á de duas das categorias sinalizadas: Experimentação na Formação Inicial e Continuada de Professores e Experimentação no Ensino de Química a partir de Temáticas Específicas. Os resultados permitem uma reflexão sobre o uso da Experimentação Investigativa no Ensino de Química e demonstram o seu potencial no processo de ensino e de aprendizagem.
Editorial
Authors: Assumpção Maria Rita Pontes
Published: February 2019

Esta edição volta-se, novamente, com exclusividade, à área de Engenharia de Produção. Os trabalhos apresentam uma diversidade em termos metodológicos e de setores de aplicação.
Barreiras à implementação da Logística Reversa e do Green Supply Chain Management (GSCM)
Authors: Marchesini Márcia Maria Penteado , Lizarelli Fabiane Letícia
Published: February 2019

O GSCM (Green Suppy Chain Management) surgiu para integrar a preocupação ambiental com a SCM e requer que, além de atividades da cadeia de suprimentos direta adequadas ambientalmente, que tais atividades sejam estendidas para incluir cadeias de suprimentos reversas. No “fechamento do ciclo” da cadeia, materiais em seus finais de vida são trazidos de volta ao sistema para serem recuperados, sendo a Logística Reversa somente parte do conceito de GSCM. A literatura indica os benefícios da implantação de práticas do GSCM, mas o meio empresarial ainda tem muitos desafios para estabelecer cadeias de suprimentos verdadeiramente sustentáveis, tendo que lidar com barreiras de implementação. As empresas precisam remover essas barreiras, mas se observa que ainda há pouca avaliação sistematizada da literatura sobre essa questão. Diante dessa lacuna de pesquisa, o objetivo do artigo é levantar na literatura, por meio da Revisão Bibliográfica Sistemática, as barreiras para a implementação efetiva da Logística Reversa e do GSCM. Através deste método, foram encontradas 59 barreiras à implementação da LR e/ou GSCM, enquadradas em sete diferentes categorias: gestão, financeiras, stakeholders, infraestrutura e tecnologia, ciclo de vida, conhecimento e cultura, revelando a grande variedade de fatores que podem dificultar a implementação de ações ambientalmente sustentáveis nas organizações.
Editorial
Authors: Assumpção Maria Rita Pontes , Robles Léo Tadeu , Cutrim Sérgio Sampaio
Published: February 2019

Esta edição inicia a realização de parcerias entre a Revista Ciência e Tecnologia e outras Instituições com o objetivo de divulgar trabalhos aprovados em Congressos Científicos. A primeira parceria é com a Universidade Federal do Maranhão - UFMA, representada pelo Grupo de Estudos em Logística, Negócios e Engenharia Portuária – GELNEP.
Caso: análise da estivagem de celulose no Porto do Itaqui, em São Luís (MA)
Authors: Santos Vitor Renato Pereira , Melo Alvino Oliveira
Published: February 2019

Este artigo analisa o processo de estivagem de celulose no Porto do Itaqui localizado em São Luís (MA) para determinação de ações para se reduzir estes custos pelo menor tempo de carregamento, aumentando a rotatividade de navios no porto e a rentabilidade da operação, contribuindo para que a empresa seja mais competitiva no mercado marítimo. Para tanto, foram estudadas técnicas de estivagem, observando as diversas operações de carregamento de celulose em diferentes regimes de trabalho. Da mesma forma, acompanhou-se as diversas interrupções ocorridas durante as operações relativas a intervenções para manutenção das máquinas e equipamentos (guindastes, lifting frames ou spreaders). A eficiência da cadeia de estivagem foi medida com a utilização da ferramenta Overhaul Equipment Effectiveness - OEE, que permite a estimativa da eficácia dos equipamentos e da operação. Concluímos pela necessidade de desenvolvimento e implantação de técnicas e tecnologias inovadoras na melhoria da qualidade do andamento deste tipo de operação portuária e da gestão da empresa, com a utilização de indicadores que conectem os envolvidos no processo produtivo.
Quantum physics and consciousness: a (strong) defense of panpsychism
Authors: Maldonado Carlos Eduardo
Published: February 2019

Abstract: Probably the crux of quantum science is the relationship between consciousness and reality. The name for that relation is varied, and points out to a most fundamental problem, namely the possibility to overcome dualism. In science and philosophy at large, determinism and reductionism have already been tackled, if not superseded. The trouble though remains with dualism. This paper argues in favor of a radical relationship between reality and consciousness based on quantum theory. Such a relation is panpsychism, which can be translated and grasped in various other forms. The arguments are provided and some conclusions are drawn.
Cooking Skills Index: Development and reliability assessment
Authors: MARTINS Carla Adriano , BARALDI Larissa Galastri , SCAGLIUSI Fernanda Baeza , VILLAR Betzabeth Slater , MONTEIRO Carlos Augusto
Published: February 2019

Abstract Objective Describe the development and the reliability assessment of an index that evaluates the confidence in performing cooking skills considered relevant in Brazil. Methods The development of the Cooking Skills Index was based on the self-efficacy beliefs and its theoretical reference was the Dietary Guidelines for the Brazilian Population. It measures, from zero to 100, the degree of confidence in performing ten cooking skills considered as facilitators for the implementation of Brazilian Dietary Guidelines recommendations. Experts (face validity) evaluated the index. A pilot study (n=10) and a test-retest (n=51) was conducted by telephone interviews and computerized assistance with adults responsible for food preparation at home in São Paulo. Reliability was assessed by Cronbach’s alpha, quadratic weighted kappa and prevalence and bias adjusted kappa. Results The Cooking Skills Index was coherent with the adopted theoretical framework according to the experts. It was fast and easy to apply to the participants. It showed a good internal consistency (Cronbach’s alpha >0.70) and an acceptable to excellent reproducibility (weighted kappa=0.55, adjusted kappa=0.89). Conclusion The Cooking Skills Index has a good reliability and is therefore recommended to evaluate cooking skills confidence in Brazilian studies developed in contexts similar to those of this study.
Non-destructive measurement of leaf area and leaf pigments in feijoa trees
Authors: Sachet Marcos R. , Citadin Idemir , Guerrezi Marieli T. , Pertille Rafael H. , Donazzolo Joel , Nodari Rubens O.
Published: February 2019

ABSTRACT Leaf area (cm2 per leaf) and leaf pigment content are important traits that can be used to better understand a plants physiology. In this study, empirical non-destructive models for leaf area and leaf pigment based on the leaf dimensions, length (L) and width (W) in centimeters, and chlorophyll meter readings were developed for feijoa (Acca sellowiana). The experiment was carried out during January 2016 using five-year-old trees of 60 genotypes, grown under field conditions in the state of Paraná, Brazil. The proposed leaf area (LA) model was L A = 0 . 0022 L 3 + 0 . 1482 W 2 + 0 . 6159 L W + 0 . 1076 (R2 = 0.99). Three current leaf area models found in the literature were also assessed. All of the already created models were less accurate than the model proposed in this article. The proposed leaf pigment models were based on the Falker Chlorophyll Index for Chlorophyll a (A) and b (B), these were C h l a = 2 . 564 A + 13 . 098 B - 42 . 605 (R2 = 0.94), C h l b = 1 . 538 A + 3 . 287 B + 8 . 847 (R2 = 0.86) and C a r o t e n o i d s = 0 . 947 B + 8 . 943 (R2 = 0.88) expressed as µmol m-2 of leaf blade. In conclusion, the proposed models in this study were shown to be a reliable non-destructivel way of estimating A. sellowiana leaf area and leaf pigment.
Partitioning of rainfall into throughfall, stemflow, and interception loss in the Brazilian Northeastern Atlantic Forest
Authors: Ribeiro Filho Jacques C. , Lemos Filho Luis C. de A. , Santos Julio C. N. dos , Brasil José B. , Palácio Helba A. de Q.
Published: February 2019

ABSTRACT Information on hydrology, and vegetation distribution is essential for the development of techniques and strategies to cope with droughts in semi-arid environments. The objective of this study was to evaluate the partitioning of gross rainfall into throughfall, stemflow, and interception loss in the Brazilian Northeastern Atlantic Forest, and its correlations with rainfall characteristics. The study was conducted in the Bica watershed, in Portalegre, state of Rio Grande do Norte, Brazil. The work was carried out in 2017, with monitoring of the throughfall, stemflow, and interception loss in an area of 10 × 20 m. Total rainfall depths (TRD) and wind speed were measured, and the evapotranspiration (ET0) was estimated. Based on this information, the intensity (I), kinetic energy (KE) and intensity at intervals of 5, 10, 20, 30, 45, and 60 min of each rainfall event were measured. Twenty rainfall events occurred during the study period. The vegetation showed interception of 44.9%, throughfall of 52.9%, and stemflow of 2.2% of the total rainfall. Three principal components (PC) were formed in the PC Analysis, explaining more than 84% of the total variance. PC1, PC2, and PC3 encompassed variables related to rainfall energy to overcome the vegetation physical barrier, inflow and outflow, and variables dependent on the rainfall duration, respectively.
Gas exchanges and photochemical efficiency of hydroponic bell pepper under salinity and plant density
Authors: Cavalcante Antônio R. , Santos Júnior José A. , Furtado Guilherme de F. , Chaves Lúcia H. G.
Published: February 2019

ABSTRACT Gas exchanges and chlorophyll a fluorescence are ways to physiologically analyze the response of plants to salt stress. In this context, the present work was conducted between August and November 2016 in a greenhouse at the Federal University of Campina Grande (7°12’52” S, 35°54’24” W, mean altitude of 550 m), using bell pepper plants cv. All Big, exposed to levels of nutrient solution electrical conductivity (1.7, 3.7, 5.7, 7.7, 9.7 and 11.7 dS m-1) and cultivated in hydroponic system, spaced by 0.2 and 0.3 m, focusing on the analysis of gas exchanges and photochemical efficiency. The experimental design was completely randomized, in a 6 x 2 factorial scheme, with five replicates. Plant density influenced the sensitivity of the gas exchanges to salinity and, when reduced, mitigated its effects at higher salinity levels. Increasing plant density at high levels of electrical conductivity caused damage to the photosynthetic apparatus and even reduced the levels of efficiency of the photosystem II from 3.98 dS m-1.
Response of vegetation to sheep dung addition in a degraded Cerrado area
Authors: Teixeira Danilo S. , Rezende Andreia A. , Lannes Luciola S.
Published: February 2019

ABSTRACT Cerrado is the second largest biome in Brazil and is classified as a biodiversity hotspot. The establishment of hydroelectric power stations in Brazil originated degraded areas due to the removal of soil for construction of dams, in which native vegetation sometimes fails to reestablish due to the bad soil conditions. Sheep excrete most of the nutrients they ingest, such as phosphorus, calcium, potassium and nitrogen. This study aimed at investigating whether sheep dung contributes to the improvement of soil quality and stimulates the process of ecological succession in areas affected by the construction of the hydroelectric power station of Ilha Solteira. Four areas were selected, located at the Experimental Farm of Unesp Ilha Solteira/SP, and ten plots of 1 m2 each were established. From October 2014 to December 2015, five replicates received 150 g fresh sheep dung every 15 days. In December 2015 soil sample from top 0.10 m was collected for the determination of soil attributes. Aboveground biomass was also collected, separated into four functional groups, oven-dried and weighed. Data were analysed to check the effect of dung addition upon soil and vegetation variables. Dung addition stimulated the development of several functional groups and changed soil nutrient concentrations in all four studied areas.