bluuebunny/crossref_metadata_2025 huggingface dataset:
Frequency noise correlation between the offset frequency and the mode spacing in a mid-infrared quantum cascade laser frequency comb
Authors: Shehzad Atif , Brochard Pierre , Matthey Renaud , Kapsalidis Filippos , Shahmohammadi Mehran , Beck Mattias , Hugi Andreas , Jouy Pierre , Faist Jérôme , Südmeyer Thomas , Schilt Stéphane
Published: February 2020

The generation of frequency combs in the mid-infrared (MIR) spectral range by quantum cascade lasers (QCLs) has the potential for revolutionizing dual-comb multi-heterodyne spectroscopy in the molecular fingerprint region. However, in contrast to frequency combs based on passively mode-locked ultrafast lasers, their operation relies on a completely different mechanism resulting from a four-wave mixing process occurring in the semiconductor gain medium that locks the modes together. As a result, these lasers do not emit pulses and no direct self-referencing of a QCL comb spectrum has been achieved so far. Here, we present a detailed frequency noise characterization of a MIR QCL frequency comb operating at a wavelength of 8 µm with a mode spacing of ∼7.4 GHz. Using a beat measurement with a narrow-linewidth single-mode QCL in combination with a dedicated electrical scheme, we measured the frequency noise properties of an optical mode of the QCL comb, and indirectly of its offset frequency for the first time, without detecting it by the standard approach of nonlinear interferometry applied to ultrafast mode-locked lasers. In addition, we also separately measured the noise of the comb mode spacing extracted electrically from the QCL. We observed a strong anti-correlation between the frequency fluctuations of the offset frequency and mode spacing, leading to optical modes with a linewidth slightly below 1 MHz in the free-running QCL comb (at 1-s integration time), which is narrower than the individual contributions of the offset frequency and mode spacing that are at least 2 MHz each.
Novel tunable graphene-encoded metasurfaces on an uneven substrate for beam-steering in far-field at the terahertz frequencies
Authors: Xiao Binggang , Zhang Ying , Tong Shengjun , Yu JiaBin , Xiao Lihua
Published: February 2020

In this paper, we present a novel tunable graphene coding metasurface structure using a circular graphene patch on an uneven substrate. By changing the Fermi level of graphene or the thickness of the substrate, we can achieve obvious phase variation. Firstly, we put forward two construction methods of 1-bit coding metasurface based on this mechanism. The first method is to change the thickness of the substrate when the Fermi levels of the two-unit cells are the same, so that the two-unit cells exhibit different digital states of ‘0’ and ‘1’. Furthermore, we change the working frequency band in real-time by switching the Fermi level from 0.05 eV to 0.85 eV. The second method is to change the Fermi level of graphene on the two-unit cells when the physical structure is fixed, so that the two-unit cells exhibit different digital states of ‘0’ and ‘1’. In this case, we can achieve the regulation of the direction and number of far-field reflected waves in the frequency range of 2.65 THz ∼ 2.85THz. Then, to obtain a single beam of reflected waves deviating from the normal direction, we create a 2-bit method in combination with two 1-bit construction methods. At 1.9 THz, the four-cell structures have a phase difference of approximately 90° and the same reflection coefficient. We also set several coding modes to analyse the control of the reflected wave on the 2-bit coding metasurface. Finally, we realized the real-time regulation of the reflected wave in eight directions from 0° to 360° by controlling the Fermi level of the graphene. Therefore, this article proposes a potentially effective approach to the design of functional devices for beam splitting and beam deflection.
High peak-power and narrow-linewidth all-fiber Raman nanosecond laser in 1.65 µm waveband
Authors: Yin Taoce , Qi Zhangni , Chen Feihong , Song Yufu , He Sailing
Published: February 2020

A high peak-power and narrow-linewidth all-fiber Raman pulsed laser operating around 1.65 µm is introduced. A 1541 nm laser seed is modulated into pulse trains, which will be used as the Raman pump laser, by driving a reflective semiconductor optical amplifier (RSOA) with a continuous periodic square-wave voltage. A homemade high peak-power 1541 nm pulsed laser is employed to modulate and amplify a 1653.7 nm distributed feedback laser (DFB) seed synchronously in a segment of the 52-meter-long highly germania-doped fiber (HGDF). The repetition-rate and the pulse-width of the 1653.7 nm pulsed laser are 100 kHz and 31 ns, respectively. The peak power is estimated to be as high as about 30.85 W, and a 3-dB linewidth as narrow as less than 0.08 nm is achieved when the average power of 1541 nm pump is 3.1 W. The wavelength of Raman pulsed laser can be tuned from 1652.0 nm to 1654.0 nm continuously with an optical signal-to-noise ratio (OSNR) of more than 35 dB.
Investigation of aerosol absorption with dual-polarization lidar observations
Authors: Huang Zhongwei , Qi Siqi , Zhou Tian , Dong Qingqing , Ma Xiaojun , Zhang Shuang , Bi Jianrong , Shi Jinsen
Published: February 2020

Polarization lidar has been widely used in recent decades to observe the vertical structures of aerosols and clouds in the atmosphere. We developed a dual-polarization lidar system that can detect polarization measurements simultaneously at 355 nm and 532 nm. Dust events and haze episodes over northern China in 2014 were observed by the developed lidar. The results showed that the dust-dominated aerosol depolarization ratios at 532 nm were larger than those at 355 nm, but those of the air pollutants were smaller, indicating that this tool could provide a more accurate classification of aerosols. Moreover, we found a good relationship between the absorption coefficient of aerosols and the ratio of depolarization ratios at 532 nm and 355 nm for dust aerosols. Our results imply that aerosol absorption from polarization measurements may be determined by lidar at the ultraviolet and visible wavelengths.
Avaliação dos impactos do metrô na acessibilidade da população de baixa renda aos postos de trabalho em Fortaleza
Authors: Freire Renan Monteiro Carioca , Loureiro Carlos Felipe Grangeiro , Lopes André Soares , Sousa Francelio Franco Leite de Matos
Published: February 2020

O paradigma de planejamento de transportes vigente, cujo foco reside não só na mobilidade das pessoas mas especialmente na sua acessibilidade às atividades urbanas, se baseia em princípios de sustentabilidade e equidade visando reduzir desigualdades socioespaciais, promovendo assim melhor qualidade de vida e justiça social. Nesse contexto de tomada de decisão, este trabalho teve o objetivo de avaliar os impactos advindos das melhorias operacionais propostas nas linhas Sul e Oeste do Metrofor sobre a problemática do acesso aos postos de trabalho da população de baixa renda em Fortaleza. O método de avaliação ex-ante proposto, assumindo a premissa social do igualitarismo, emprega indicadores de acessibilidade baseados em utilidade, obtidos através do logsum, para levantar hipóteses relacionadas à distribuição espacial das zonas mais ou menos beneficiadas pela intervenção, assim como a dispersão dos impactos sobre o grupo socialmente mais vulnerável. Conclui-se que as ações propostas são eficazes ao elevar os níveis de acessibilidade das zonas consideradas críticas, embora com efeitos limitados se não acompanhadas de políticas públicas de uso do solo.
Determining Fracture Pressure Gradients from Well Logs
Authors: K. I Udo , N. J George , A. O Akankpo , G. B Azuoko , M.U Aka
Published: February 2020

Fracture pressure gradient is one of the essential parameters used in determining mud weight profiles during drilling operations. We have determined fracture pressure gradients from well logs obtained from three producing wells in Onshore Niger Delta using an empirical model. Key logs needed for the prediction were conditioned and quality controlled to meet the standard required for reliable results. The true vertical stress, normal compaction trend and compressional shale velocity trends were generated from the logs (density and sonic logs). Poison’s ratio was obtained from compressional and shear wave velocities derived from sonic log. Pore pressures in the three wells were then predicted using Eaton’s Method. The predicted pore pressures, overburden pressures and poison’s ratio were used to determine fracture pressures using Ben Eaton’s Model. Results showed that there is a suitable drilling margin at all depths only in well G-005. Drilling well A-001 to a depth of 10962.81 ft and K-001 to a depth of 12626.9 ft will fracture the formations because the fluid pressures at those depths approximate the fracture pressures of 8536.7psi and 9506 psi with corresponding gradients of 0.78 psi/ft and 0.75 psi/ft respectively. The implication is that drilling deeper in the field will results in very low seal capacity magnitudes, thereby presenting a higher risk of top-seal failure.
Programmable view update strategies on relations
Authors: Tran Van-Dang , Kato Hiroyuki , Hu Zhenjiang
Published: February 2020

View update is an important mechanism that allows updates on a view by translating them into the corresponding updates on the base relations. The existing literature has shown the ambiguity of translating view updates. To address this ambiguity, we propose a robust language-based approach for making view update strategies programmable and validatable. Specifically, we introduce a novel approach to use Datalog to describe these update strategies. We propose a validation algorithm to check the well-behavedness of the written Datalog programs. We present a fragment of the Datalog language for which our validation is both sound and complete. This fragment not only has good properties in theory but is also useful for solving practical view updates. Furthermore, we develop an algorithm for optimizing user-written programs to efficiently implement updatable views in relational database management systems. We have implemented our proposed approach. The experimental results show that our framework is feasible and efficient in practice.
College Assignment Problems Under Constrained Choice, Private Preferences, and Risk Aversion
Authors: Hernandez-Chanto Allan
Published: February 2020

Many countries use a centralized admission system for admitting students to universities. Typically, each student reports a ranking of his preferred colleges to a planner, and the planner allocates students to colleges according to the rules of a predefined mechanism. A recurrent feature in these admission systems is that students are constrained in the number of colleges that they can rank. In addition, students normally have private preferences over colleges and are risk-averse. Hence, they face a strategic decision under uncertainty to determine their optimal reports to the planner. We characterize students’ equilibrium behavior when the planner uses a Serial Dictatorship (SD) mechanism by solving an endogenous decision problem. We show that if students are sufficiently risk-averse, their optimal strategy is to truthfully report the “portfolio of colleges” with the highest probabilities of being available. We then analyze the welfare implications of constraining student choice by stressing the differences between the so-called consideration and conditional-allocation effects.
Dynamics of Online Collective Attention as Hawkes Self-exciting Process
Authors: Li Zhenpeng , Xijin Tang
Published: February 2020

Understanding the dynamic formation mechanism of online collective attention has been attracted diversified interests such as Internet memes, viral videos, or social media platforms and Web-based businesses, and has practical application in the area of marketing and advertising, propagation of information. Bulletin Board System, or BBS can be regarded as an ecosystem of digital resources connected and shaped by collective successive behaviors of users. Clicks and replies of the posts quantify the degree of collective attention. For example, the collective clicking behavior of users on BBS gives rise to the up and down of focus on posts, and transporting attention between topics, the ratio between clicks and replies measure the heat degree of a post. We analyzed the dynamics of collective attention millions of users on an interactive Tianya Zatan BBS. By analyzing the dynamics of clicks we uncovered a non-trivial Hawkes process self-exciting regularity concerning the impact of novelty exponential decay mechanism. Here, it able to explain the empirical data of BBS remarkably well, such as popular topics are observed in time frequently cluster, asymptotic normality of clicks. Our findings indicate that collective attention among large populations decays with a exponential decaying law, suggest the existence of a natural time scale over novelty fades. Importantly, we show that self-exciting point processes can be used for the purpose of collective attention modeling.
Developing a Scale to Measure Interprofessional Collaboration in HIV Prevention and Care: Implications for Research on Patient Access and Retention in the HIV Continuum of Care
Authors: Pinto Rogério M. , Choi C. Jean , Wall Melanie M.
Published: February 2020

To adapt and validate a scale for measuring interprofessional collaboration in HIV prevention and care (IPC-HIV), primary survey data were collected (2012–2017) from 577 HIV service providers in 60 organizations in New York, New Jersey, and Michigan. Cross-sectional training data were used to develop the IPC-HIV scale. The model was validated by fitting the five-factor confirmatory factor-analysis model to a 30-item set. The scale measures five domains with reliable alpha coefficients: Interdependence, Professional Activities, Flexibility, Collective Ownership, and Reflection on Process. Correlations between subscales were significant (p < .05). The strongest correlation was between Reflection on Process and Collective Ownership subscale scores. Mean scores ranged lfrom 4.070 to 4.880, with the highest score for Flexibility across all locations. IPC-HIV is valid and reliable among HIV-prevention and care workers, and is recommended for examining the effect of IPC on patient access to HIV testing and primary care.
Diet-induced weight loss alters hepatic glucocorticoid metabolism in type 2 diabetes mellitus
Authors: Stomby Andreas , Otten Julia , Ryberg Mats , Andrew Ruth , Walker Brian R , Olsson Tommy
Published: February 2020

Context

Altered tissue-specific glucocorticoid metabolism has been described in uncomplicated obesity and type 2 diabetes. We hypothesized that weight loss induced by diet and exercise, which has previously been shown to reverse abnormal cortisol metabolism in uncomplicated obesity, also normalizes cortisol metabolism in patients with type 2 diabetes.

Objective

Test the effects of a diet intervention with added exercise on glucocorticoid metabolism.

Design

Two groups followed a Paleolithic diet (PD) for 12 weeks with added 180 min of structured aerobic and resistance exercise per week in one randomized group (PDEX).

Setting

Umeå University Hospital.

Participants

Men and women with type 2 diabetes treated with lifestyle modification ± metformin were included. Twenty-eight participants (PD, n = 15; PDEX, n = 13) completed measurements of glucocorticoid metabolism.

Main outcome measures

Changes in glucocorticoid metabolite levels in 24-h urine samples, expression of HSD11B1 mRNA in s.c. adipose tissue and conversion of orally administered cortisone to cortisol measured in plasma. Body composition and insulin sensitivity were measured using a hyperinsulinemic-euglycemic clamp, and liver fat was measured by magnetic resonance spectroscopy.

Results

Both groups lost weight and improved insulin sensitivity. Conversion of orally taken cortisone to plasma cortisol and the ratio of 5α-THF + 5β-THF/THE in urine increased in both groups.

Conclusions

These interventions caused weight loss and improved insulin sensitivity with concomitant increases in the conversion of cortisone to cortisol, which is an estimate of hepatic HSD11B1 activity. This suggests that dysregulation of liver glucocorticoid metabolism in these patients is a consequence rather than a cause of metabolic dysfunction.
Conceptual foundations for the development of J.G.Turner’s general sociological theory: metatheoretical ideas, basic concepts and analytical scheme
Authors: Reznik Volodymyr
Published: February 2020

The article discusses the conceptual foundations of the development of the general sociological theory of J.G. Turner. In this case, foundations should be understood as metatheoretical ideas formulated by the researcher, basic concepts, and the analytical scheme itself. Turner began to develop a general sociological theory with a synthesis of metatheoretical ideas of social forces and social selection. He formulated a synthetic metatheoretical statement, according to which there are certain social forces that exert pressure on the choice of individuals and force them to change the models of their social organization and create new types of socio-cultural entities, which is designed to ensure survival under conditions of this kind of pressure. Starting to systematize the basic concepts of his theorizing, Turner proceeded from the rationale for the differentiation of micro-, mezo- and macro-levels of social reality. Such an approach made it possible to build a substantiation of a simple conceptual scheme of social dynamics based on these principles. According to this scheme, it becomes clear how the forces of macro-social dynamics of the population, production, distribution, regulation and reproduction cause social evolution. Thus, Turner showed how these forces force individual and corporate actors to structurally adapt their communities in changing circumstances. Such adaptation helps to overcome or avoid the disintegration consequences of these forces. The initial stage of Turner's general theorizing is a kind of audit, modification, modernization and systematization of the conceptual apparatus of sociology. The initial results obtained by the scientist became the basis for the development of Turner's concept of the dynamics of functional selection in the social world.
Radial Basis Neural Network for Availability Analysis
Authors: Deepika Garg  , Naresh Sharma
Published: February 2020

The appliance of radial basis neural network is demostrated in this paper. The method applies failure and repair rate signals to learn the hidden relationship presented into the input pattern. Statistics of availability of several years is considered and collected from the management of concern plant. This data is considered to train and calidate the radial basis neural network (RBNN). Subsequently validated RBNN is used to estimate the availability of concern plant. The main objective of using neural network approach is that it’s not require assumption, nor explicit coding of the problem and also not require the complete knowledge of interdependencies, only requirement is raw data of system functioning.
Influence of Mathematical and Astronomical Developments in Medieval Kerala on Vāstuśāstra
Authors: Rajasekhar P  , Babu T Jose
Published: February 2020

The contribution in the field of mathematics is unparalleled. The concept of zero and the place value system is alone sufficed to place India in a high pedestal. Historians were generally under the impression that Indian supremacy in Mathematics came to an end with Bhaskaracharya (1114–1185) who is also known as Bhaskara II.Recent researches and publications of books like ‘Crest of the peacock’ written by George Gheverghese Joseph, has brought out the marvelous achievements of Southern India, especially Kerala region after the period of Bhaskaracharya which produced many results surpassing the Europeans in its indigenous style till the advent of Western Education system in early 19th Cent. This medieval contribution includes mathematical analysis and first steps in Calculus and many outstanding discoveries in astronomy. These contributions in Mathematics as well as in Astronomy are now grouped and studied under the title “Kerala School”. Accordingly, Sangamagrama Madhava (14th Cent.), doyen of Kerala School, is recognized as the ‘Father of infinitesimal Analysis’.In this paper the attempt is made to analyse the influence of Kerala School in the development of traditional building science and architecture. This branch of knowledge is generally categorized under the term ‘Vāstuśāstra’.`
Czy nietypowe groby odkrywane na wczesnośredniowiecznych stanowiskach archeologicznych z terenu Polski to pochówki wampirów?
Authors: Kubicka Anna
Published: February 2020

Niniejszy artykuł poruszać będzie zagadnienia związane z obrzędowością czasów wczesnego średniowiecza. Autorka skupi się na omówieniu nietypowych pochówków wczesnośredniowiecznych lokalizowanych na terenie Polski, które często w literaturze występują pod nazwą „pochówków antywampirycznych”. Przeanalizowane zostaną zarówno praktyki dotyczące jamy grobowej jak i bezpośrednio ciała zmarłego. W dalszej części referatu podjęte będą również próby wyjaśnienia, z jakich przyczyn część z pochówków odnajdowanych na cmentarzyskach datowanych na X – XIII w. różni się od powszechnie przyjętej normy. Autorka postara się także udzielić odpowiedzi na pytanie, czy rzeczywiście są to miejsca spoczynku istot, które tradycja ludowa nazywa wampirami lub strzygami.
Rola mediów w konflikcie wietnamskim
Authors: Pietrygała Robert
Published: February 2020

Konflikt wietnamski 1964-1975 był najobszerniej filmowaną i najdokładniej relacjonowaną wojną w historii. Konflikt wietnamski pokazywany przez lata, w sposób wyrazisty, często przesadny, odmienny od podawanego przez rządzących rozbudził w społeczeństwie amerykańskim głębokie rozczarowanie. Wojna w Wietnamie ukazana oczami dziennikarzy pokazuje siłę mediów, wpływ na nastroje społeczne i sposób utrwalania przekazywanych wiadomości. Pokazuje siłę dziennikarskiej propagandy oraz fakt, że w każdej chwili media są w stanie zmienić się z powszechnie przyjętej „czwartej władzy” w władzę pierwszą.
Depozyt nieprawidłowy – aspekty podatkowe
Authors: Hnatów Anna
Published: February 2020

Depozyt nieprawidłowy wywołuje kontrowersje nie tylko w prawie cywilnym, ale także podatkowym. W artykule starano się przedstawić (z punktu widzenia konsekwencji podatkowych) granice pomiędzy depozytem nieprawidłowym, przechowaniem a pożyczką. Przedstawiono również skutki podatkowe depozytu nieprawidłowego na tle podatku od czynności cywilnoprawnych oraz postępowania w przedmiocie nieujawnionych źródeł przychodu.
Constructing Social Attitudes and Religious Tolerance in Emerald Diversity through te Teaching of Religion and Cultural Values
Authors: Arifin Ilfiana Firzaq , Musaddad Akmad Arif , Sudiyanto Sudiyanto
Published: February 2020

Diversity is already common place in Indonesia as a country that is nicknamed as the Emerald diversity. Indonesian state menghiasai diversity is seen as something that is very unique, but foreigners do not know that it is actually in it churned a result of lack of tolerance. SMK Nurul Ulum is a school that is not wished for it to happen. Therefore, this school creates an attitude of tolerance among human beings, which is based on the teachings of Islam, Christianity, Hindu-Buddhist and cultural values Pendhalungan. The method used in this article is using qualitative descriptive analysis techniques and observation. Descriptive analysis is done by reviewing a wide range of journals, books, articles and other sources that support. While the observation conducted at SMK Nurul Ulum Jember namely by conducting in-depth interviews to the relevant school. The results showed that with the use of the teachings of tolerance of various religious and cultural values Pendhalungan and use a good strategy, tolerance can be built effectively in this school.
Enhancing Elementary School Students’ Learning Outcomes in the Field of Social Sciences Studies through Problem Based Learning Method
Authors: Ningsih Sita Ratna , Sumantri Mohamad Syarif , Nurjanah Nurjanah , Utomo Erry
Published: February 2020

The learning outcomes of the Social Sciences study at the Elementary School level in Indonesia in general have not shown maximum results, this is because the social studies field includes subjects that are less attractive to students. This study aims to determine the effect of Problem Based Learning learning method and Conventional learning method as well as the ability to think logically towards learning outcomes in Social Sciences. This research was conducted on class VI students of the State Ibtidaiyah Madrasah in Ciputat, with a total of 60 students. This study uses treatment by level 2 x 2. The data analysis technique is the analysis of two-way variance (ANAVA). The results of the study showed that: (1) Student learning outcomes in social studies subjects taught using PBL learning method were higher than students taught using conventional method, (2) for students who have high logical thinking skills, the learning outcomes of students taught using the Problem Based Learning method are higher than those taught using conventional method, (3) for students who have low logical thinking skills, student learning outcomes are taught using the PBL method lower than students taught using conventional method.(4) there was an interaction effect between PBL learning method and logical thinking skills.
Glikopirróniummal kezelt középsúlyos és súlyos krónikus obstruktív tüdőbetegek állapotának kérdőíves értékelése valós körülmények között. AMULET-vizsgálat
Authors: Tamási Lilla , Speer Gábor , Orlovszki Viktória Csilla Éva Margit Judit Ág
Published: February 2020

Absztrakt:

Bevezetés: A krónikus obstruktív tüdőbetegség (COPD) sok
szervrendszert érint, ezért a légúti áramlás korlátozottságának mértéke
önmagában nem tükrözi a COPD teljes betegségterhét. Magyarországon nincsenek a
járóbeteg-ellátásban alkalmazott COPD-kérdőívekről országos adatok, így arról
sem, hogy a betegek mennyire találják könnyűnek vagy nehéznek a kitöltést.
Célkitűzés és módszer: A vizsgálat célkitűzése az egészségi
állapotra vonatkozó, beteg által kitöltött, irányelvek javasolta kérdőívek (CCQ,
CAT, mMRC, EQ-5D-5L) eredményeinek értékelése olyan COPD-s betegeknél, akik a
mindennapos betegellátásban, 16 hetes kezelési szakaszban
glikopirrónium-bromid-terápiát kaptak (korábban terápiában nem részesültek, vagy
kiegészítő kombinációban más hörgőtágítókkal kapták, vagy váltás történt egyéb
terápiáról). A vizsgálat nyílt elrendezésű, multicentrikus, beavatkozással nem
járó, megfigyeléses volt. Eredmények: A vizsgálatba vont 527
beteg átlagéletkora 63,8 ± 9,64 év, az átlagos FEV1 59,8 ± 15,12%
volt. Az első és az utolsó vizit között, mindhárom kezelési csoportban,
klinikailag jelentősen csökkentek a CCQ-átlagpontszámok, az összes
CCQ-alpontszám, a CAT- és az mMRC-pontszámok, növekedtek ugyanakkor az EQ-5D-5L-
és a VAS-pontszámok. A vizsgálók szerint a CAT-teszt jobban tükrözte a betegek
állapotát (84,7%), mint a CCQ vagy az mMRC. A betegek szerint is a CAT-teszt a
legegyszerűbb és a legkönnyebben érthető (83,2%). Az utolsó viziten szignifikáns
különbség volt a CCQ- és a CAT- (rs = 0,711, p<0,001), a CCQ- és
az mMRC- (rs = 0,524, p<0,001), illetve a CAT- és az mMRC-
(rs = 0,475, p<0,001) pontszámok között.
Következtetés: Eredményeink azt igazolták, hogy a CAT-teszt
a legkönnyebben érthető a betegeknek, és a vizsgálóorvosok szerint is a CAT
tükrözte a legjobban betegeik állapotát, így a CAT-teszt tűnik a legígéretesebb
eszköznek a COPD tüneteinek értékelésében. Orv Hetil. 2020; 161(8): 295–305.
Effect of different fermentation processes on the phytochemical properties of green table Olives
Authors: Rababah Taha M. , Al- u’datt Muhammad , Al-Mahasneh Majdi , Gammoh Sana , Mahili Hana’a , Ajouly Tha’er
Published: February 2020

Abstract Most olive varieties are grown in Jordan using Baladi, Nabali, Crosodi and k18 table olives. This study evaluated the effect of de-bittering fermentation methods on the total phenolic, flavonoid contents, and antioxidants. The phytochemical results of fresh and fermented table olives showed significant decrease after fermentation process and during three months of storage. Baladi fresh table olive presented the highest phenol content (350.9mg GAE/100g) followed by Nabali, Crosodi and k18 varieties, respectively. The highest antioxidant value was found in Baladi variety (42.2%) followed by k18, Crosodi and Nabali varieties, respectively. Crosodi fresh table olive presented the highest flavonoid content (107.4 mg CE/100G), followed by k18, Nabali and Baladi varieties, respectively. The storage results showed that total phenol content decreased and significantly varied among de-bittering fermentation methods in all storage periods. Higher content in fresh olives was found, followed by those treated with NaOH, ticked and scratchy, respectively. The antioxidant activity and flavonoid content decreased during fermentation periods. The results of de-bittering fermentation methods varied among storage periods and showed that higher antioxidant activities and flavonoid contents were found in olives treated with NaOH followed by ticked, scratchy, and fresh olives, respectively.
Construção e Avaliação para 15 Listas de Palavras Baseadas no Paradigma Deese-Roediger-McDermott
Authors: Hong Patricia , Parente Maria Alice de Mattos Pimenta , Claessens Peter Maurice Erna , Galduróz Ruth Ferreira
Published: February 2020

Resumo Com base nos estudos conduzidos de acordo com o paradigma Deese-Roediger-McDermott (DRM), em quais palavras de uma lista tendem a evocar outros itens relacionados, utilizado em pesquisas de falsas memórias, neste estudo elaborou-se 15 listas de palavras semanticamente relacionadas para o português. Para a elaboração das listas, foram considerados critérios como frequência de palavras no corpus de português brasileiro e extensão de palavras. A pré-seleção guiada por características linguísticas visava controlar possíveis vieses por parte dos voluntários. Testes de associação semântica e concretude de palavras foram realizados para apurar a conveniência dos itens selecionados, e um teste de recordação livre foi conduzido para avaliar características de evocação. Sugerimos a utilização das listas de palavras em pesquisas que avaliem falsas memórias.
Hematological parameters of three species of the peacock bass (Cichla spp.) from Balbina lake, Presidente Figueiredo, Amazonas, Brazil
Authors: Castro P. D. S. , Ladislau D. S. , Ribeiro M. W. S. , Lopes A. C. C. , Lavander H. D. , Bassul L. A. , Mattos D. C. , Liebl A. R. S. , Aride P. H. R. , Oliveira A. T.
Published: February 2020

Abstract The objective of this study was to characterize and compare the hematological variables (erythrogram, thrombogram, leukogram and plasma metabolites) of three cichlid species: Cichla monoculus, Cichla temensis and Cichla vazzoleri. A total of 45 specimens were captured in Balbina lake, Presidente Figueiredo, Amazonas, Brazil, with the aid of a rod and reel or hand line, with natural or artificial bait: 15 C. monoculus, 15 C. temensis and 15 C. vazzoleri. Their blood was removed by means of caudal puncture of the dorsal aorta, and hematological data were determined in accordance with methodology previously described in the literature. The erythrogram showed similarities between the species, while the thrombogram showed differences between C. vazzoleri and the other species studied (C. monoculus and C. temensis). The total leukocyte counts for C. temensis and C. vazzoleri were higher than those of C. monoculus. The predominant leukocyte in C. temensis and C. vazzoleri was lymphocytes, whereas it was monocytes in C. monoculus. The plasma metabolites showed differences between the three cichlid species, regarding their glucose, cholesterol, urea and potassium levels. It is concluded that these three species present hematological differentiation, thus indicating that they have differentiated blood-cell immune responses and plasma metabolite physiology.
The effects of stretching on muscle morphometry of ovariectomized rats
Authors: Vidal Regiane , Volkweis Gabriela , Ywazaki Julye Leiko , Randi Marco Antonio Ferreira , Loureiro Ana Paula Cunha , Gomes Anna Raquel Silveira
Published: February 2020

Abstract Introduction: Ageing is responsible for structural alterations, declining of all physiological variables, including range of motion and skeletal muscle function, known as sarcopenia. Objective: The aim of the study was to evaluate the effects of stretching on muscle morphometry in ovariectomized rats. Method: 21 female Wistar rats (12 weeks, 218 ± 22 g) were divided into 4 groups: control (CONTROL, n = 3) intact; ovariectomized and hysterectomized (OH, n = 6); Stretching (STRET, n = 6); ovariectomized and hysterectomized and stretching (OHS, n = 6). The rats were subjected to ovariectomy and hysterectomy. The stretching protocol of the soleus muscle lasted 10 repetitions of 1 minute with 45s interval between each repetition performed 3 times a week for 3 weeks. After 3 weeks, the rats were weighed and the muscles of both hind limbs were removed weighed and analyzed at muscle length; serial sarcomere number; sarcomere length; muscle fiber cross-sectional area (MFCSA) and percentage of connective tissue. Results: The final body weight increased in all groups. The serial sarcomere number of STRET was greater than the OH. The muscle fibers’ cross-sectional area of OHS was higher than CONTROL. Conclusion: It can be concluded that ovariectomy and hysterectomy prevented sarcomerogenesis even when stretching was applied. However, the stretching protocol enhanced muscle trophismof ovariectomized and hysterectomized rats. It might be suggested that longitudinal growth (serial sarcomeres) and radial (ASTFM) are differently regulated by stretching in intact and/or estrogen depleted (ovariectomy and hysterectomy) skeletal muscle.
Representações das emoções do trabalho docente em uma perspectiva histórica
Authors: Costa Marina Mendes da , Lugli Rosario Silvana Genta
Published: February 2020

Resumo Este artigo apresenta os resultados de um estudo cujo objetivo foi identificar as representações, compreendidas na acepção de Chartier, a respeito das dimensões emocionais do trabalho dos professores primários em São Paulo, entre as décadas de 1950 e 1970. Utilizaram-se, para tanto, romances autobiográficos de professoras que exerceram o magistério no período, as revistas produzidas pelo Centro do Professorado Paulista - CPP, bem como as produções da Revista Brasileira de Estudos Pedagógicos – RBEP, como forma de comparar as representações acerca das dimensões emocionais do trabalho docente produzidas pelos próprios professores e as representações produzidas pelos pesquisadores em educação, divulgadas pela RBEP. As emoções são definidas, a partir de Estrela e Damásio, como um sistema dinâmico que proporciona o lidar com o desconhecido e tomadas de consciência, além do julgamento constante (inconsciente e consciente) das ameaças e das oportunidades do cotidiano. As dimensões emocionais do trabalho docente são entendidas como um conjunto de emoções resultantes das interações dos professores no exercício da docência: a relação com os alunos, família, os demais profissionais do ambiente escolar, bem como as emoções decorrentes das condições de trabalho e as mudanças na estrutura educacional. A análise das fontes permitiu identificar em que medida as representações sobre as emoções no trabalho docente estavam relacionadas com a produção do discurso acerca da formação e da prática do professor primário, bem como com a constituição e divulgação da representação do professor primário pelo CPP.
Microscopy techniques for determining water–cement (w/c) ratio in hardened concrete: a round-robin assessment
Authors: Wong H. S. , Poole A. B. , Wells B. , Eden M. , Barnes R. , Ferrari J. , Fox R. , Yio M. H. N. , Copuroglu O. , Guðmundsson G. , Hardie R. , Jakobsen U. H. , Makoubi K. , Mitchinson A. , Raybould P. , Strongman J. , Buenfeld N. R.
Published: February 2020

Water to cement (w/c) ratio is usually the most important parameter specified in concrete design and is sometimes the subject of dispute when a shortfall in concrete strength or durability is an issue. However, determination of w/c ratio in hardened concrete by testing is very difficult once the concrete has set. This paper presents the results from an inter-laboratory round-robin study organised by the Applied Petrography Group to evaluate and compare microscopy methods for measuring w/c ratio in hardened concrete. Five concrete prisms with w/c ratios ranging from 0.35 to 0.55, but otherwise identical in mix design were prepared independently and distributed to 11 participating petrographic laboratories across Europe. Participants used a range of methods routine to their laboratory and these are broadly divided into visual assessment, measurement of fluorescent intensity and quantitative backscattered electron microscopy. Some participants determined w/c ratio using more than one method or operator. Consequently, 100 individual w/c ratio determinations were collected, representing the largest study of its type ever undertaken. The majority (81%) of the results are accurate to within ± 0.1 of the target mix w/c ratios, 58% come to within ± 0.05 and 37% are within ± 0.025. The study shows that microscopy-based methods are more accurate and reliable compared to the BS 1881-124 physicochemical method for determining w/c ratio. The practical significance, potential sources of errors and limitations are discussed with the view to inform future applications.
Basics of Criminal Policy: from Theoretical Discourse to De Lege Ferеnda
Authors: Endoltseva Аlla , Endoltseva Yulia , Platonova Natalya
Published: February 2020

The authors analyze publications in criminal policy, study its understanding by scholars of criminal and criminal procedure law and criminology, and present their own vision of different aspects of the development and implementation of criminal policy in the Russian Federation. They examine criminal policy as a complex pheno­menon which has law enforcement and human rights dimensions aimed at counteracting crime, as a system which includes criminal law, criminal procedure, investigation, penitentiary and criminological policies; the authors present arguments in favor of using such an approach. Criminal policy cannot be designed independently from state legal policy; it should be developed with the participation of civil society institutions and should be approved by it. The main goal of this work is to determine the basics (the principles) of Russian criminal policy, to describe their contents, interconnections and interpenetration. The authors examine and analyze different approaches to specifying the principles of criminal policy. They come to the conclusion that the principles of criminal policy differ from the principles of anti-criminal branches of law, but the latter should determine the basic clauses of criminal and criminal procedure law. It is stressed that a system of principles focusing on a common goal — crime counteraction — can only be discussed within the framework of criminal policy. The authors study the international experience of criminal policy in different countries and determine four fundamental principles of criminal policy in the member states of the Council of Europe. The analysis of modern criminal law and criminal procedure legislation with its numerous changes and amendments, the identified lack of coordination and inconsistency of the actions of lawmakers allow the authors to discuss the necessity of developing a unified criminal law, criminal procedure and penitentiary policy, i.e. criminal policy in a broad sense. They conclude that it is necessary to design a document, officially recognized at the state level, that would stipulate and reflect the basics (the principles), goals and tasks, as well as the priority directions for developing the criminal policy.
Reversing perverted development: magical realism in Moses, Citizen & Me
Authors: Addei Cecilia
Published: February 2020

This paper focuses on reimagining the developmental process of the child soldier who has developed abnormally into adulthood and bringing him back into normal childhood. In particular, it considers how the attention of Delia Jarrett-Macauley’s novel, Moses, Citizen & Me (2005) is directed at restoring the childhood of the child soldier. The novel achieves this aim through employing creative narrative techniques to take the monstrous adult that the child has become, through a reverse-development, back to childhood from which the child may be re-educated and re-formed. The novel thus represents how the child soldier whose experience has turned him into some kind of ‘monster’ may be restored to humanity. The paper argues that magical realism in Moses, Citizen & Me encompasses a therapeutic tendency that represents a form of healing for child soldiers.
Análise descritiva dos acidentes graves de trabalho relacionado a pescadores artesanais do Brasil
Authors: Lima Ariane De Jesus Pereira , Bernardes Santos Kionna Kionna Oliveira
Published: February 2020

INTRODUÇÃO A pesca artesanal é uma atividade complexa e popular. Os acidentes de trabalho mais frequentes entre pescadores destacam-se: afogamento; ferimento com materiais perfuro cortantes, além de acidentes com animais terrestres e marinhos. OBJETIVO Descrever o número de acidente grave relacionado ao trabalho de pescadores artesanais no País. MÉTODOS Trata-se de um estudo descritivo de vigilância da amostra de acidente grave relacionado ao trabalho de pescadores artesanais. A análise foi realizada através do Sistema de Informação de Agravos e Notificações (SINAN), dentre o período de 2014 a 2016. As variáveis da pesquisa foram: dados sociodemográficos e características do acidente. RESULTADOS Foram encontrados 216 casos no SINAN. O perfil das vítimas de acidente grave relacionado a pescadores eram trabalhadores do sexo masculino, média de idade foi de 42 anos, não brancos, baixo nível de escolaridade, naturais da Bahia, sem informações sobre tempo de trabalho, trabalhavam de maneira informal. Muitos acidentes ocorreram em vias públicas, no turno da tarde, quase todos os acidentes registrados tiveram atendimento médico, os acometimentos foram em: membro superior (35,3%); membros inferiores (14,8%); mais de um membro (12%). A maioria não realizou a comunicação de acidente no trabalho (41,6%). CONCLUSÃO: Foi observado um perfil de trabalhadores do sexo masculino, em sua maioria moradores de estados do Nordeste, que estudaram até o nível fundamental e sem registro profissional. Encontrou-se um grande número de subnotificação de informações principalmente com relação ao tempo de trabalho.
Marchantia genotyping (quick and dirty genomic DNA extraction) v1
Authors: Frangedakis Eftychis , Tomaselli Marta , Rebmann Marius , Sauret-Gueto Susana
Published: February 2020

This protocol allows for quick and dirty genomic DNA extraction. It can easily be used for genotyping with PCR. The quality of the genomic DNA extracted is not suitable for any other application. It has been widely used in different plant species including Marchantia as in https://www.nature.com/articles/srep01532
O monitoramento do espaço escolar: a utilização de câmeras de vigilância nas aulas de geografia
Authors: Cano Fernando Camillo Santos
Published: February 2020

RESUMO: A sociedade contemporânea a partir do meio técnico-cientifico-informacional difundiu novas tecnologias garantindo o maior acesso a informação e ao conhecimento. O conhecimento garantiu a evolução e desenvolvimento das relações socioeconômicas, que ao mesmo tempo, impôs formas de vigilância e controle sobre a sociedade. As câmeras de segurança e/ou vigilância se encontram, cada vez mais, presentes no cotidiano das pessoas, principalmente, motivadas pela cultura do medo e insegurança, onde ser monitorado se faz necessário para assegurar a reprodução humana em meio ao aprofundamento das desigualdades sócio-espaciais. Tendo como recorte espacial e de inserção uma rede particular de ensino do município de Rio Claro-SP objetiva-se no presente artigo estabelecer o relato e caracterização da utilização de câmeras de vigilância durante o processo de ensino-aprendizagem nas aulas de Geografia. A partir de uma abordagem qualitativa e dialética, utilizando-se da observação, descrição, compreensão e significado dos conhecimentos e analisar como a presença das câmeras de vídeo de monitoramento atrapalham os processos de desenvolvimento, interação e aprendizagem dos alunos do Ensino Fundamental II. Assim sendo, a presente pesquisa foi realizada inlocus em 2017, durante a disciplina de Estágio Supervisionado IV do Programa de Graduação do Instituto Biociências da UNESP, Rio Claro-SP, Brasil.

PALAVRAS-CHAVE: Vigilância por câmeras, Vigilância em escolas, Ensino de Geografia.
A aplicação do software Google eart pro como possibilidade de geotecnologia para o ensino de cartografia escolar em Geografia
Authors: Silva Ívia Rejane Ferreira , Lima Roberval Felippe Pereira de
Published: February 2020

RESUMO: Este trabalho de pesquisa tem como objetivo demostrar a importância do conhecimento da Cartográfica Escolar a partir da utilização das Geotecnologias nas aulas de Geografia, aplicando o software Google Earth Pro como uma Geotecnologia possível ao ensino de Cartografia Escolar. As Geotecnologias inseridas na Geografia Escolar podem ser uma ferramenta bastante eficaz no que se refere ao desenvolvimento do ensino-aprendizagem. A interação entre Geografia, Cartografia e Geotecnologias no processo de ensino-aprendizagem de Geografia Escolar, pode estabelecer as condições ideais para o estudo e conhecimento do espaço geográfico. Definindo-se como pesquisa qualitativa, utilizamos como técnica de pesquisa a pesquisa-ação associada ao questionário como instrumento de pesquisa. As atividades propostas pretenderam estimular o aprendizado dos alunos do terceiro ano do Ensino Médio acerca da Cartografia Escolar e das Geotecnologias através da utilização do software Google Earth Pro. Nosso intuito foi o de disponibilizar aos professores e estudantes novas possibilidades para melhoria do ensino-aprendizagem. 

PALAVRAS-CHAVE: Google Eart Pro. Cartografia Escolar. Ensino de Geografia.
Classification of EEG Signals in Depressed Patients
Authors: ERALDEMİR Server Göksel , KILIÇ Ümit , KAYA KELEŞ Mümine , DEMİRKOL Mehmet Emin , YILDIRIM Esen , TAMAM Lut
Published: February 2020

Electroencephalography
(EEG) are electrical signals that occur in every activity of the brain.
Investigation of normal and abnormal changes that take place in the human brain
using EEG signals is a widely used method in recent years. The World Health
Organization (WHO) states that one of the most important health problems in
today's society is depressive disorders. Nowadays, various scales are used in
the diagnosis of depressive disorder in individuals. These scales are based on
the declaration of the individual. In recent studies, EEG has been used as a
biomarker for the diagnosis of depression. In this study, EEG signals from 30
patients with clinical depressive disorder have been recorded. EEG signals have
been collected for 1 minute with eyes open and closed. The collected data have
been divided into attributes by continuous wavelet transform which is used in
many studies in processing non-stationary signals such as EEG. Obtained
attributes have been classified with kNN classification method. As a result, it
was observed that EEG signals, collected from subjects with depression while
eyes are open and closed, can be classified with an accuracy of 91.30%.