bluuebunny/crossref_metadata_2025 huggingface dataset:
THE PERFORMANCE OF CONSTRUCTION HEALTH AND SAFETY AGENTS
Authors: Smallwood John , Deacon Claire
Published: March 2020

Clients may appoint construction health and safety agents (CHSAs) in terms of fulfilling their requirements in terms of the South African Construction Regulations. Previous research findings and anecdotal evidence indicate that CHSAs are lacking in terms of performance. However, due to the recent requirement for CHSAs to register, research findings relative to their performance are limited. The objectives of the study were to determine the performance of CHSAs, and barriers to CHSAs’ contribution to construction and construction health and safety (H&S). Registered CHSAs constituted the sample stratum, and were subjected to an e-mail delivered self-administered questionnaire survey. The salient findings include: CHSAs are generally appointed during project initiation and briefing, tender documentation and procurement, and construction documentation and management; CHSAs have contributed to and impacted on H&S a range of factors constitute a barrier to CHSAs contributing to H&S, particularly inadequate knowledge and experience; CHSAs rate themselves as good relative to most composite knowledge areas and composite skills areas; the contribution of CHSAs to H&S could be improved, and a range of interventions could contribute to an improvement in the contribution of CHSAs to H&S. Conclusions include: CHSAs may not be viewed as being able to contribute during project initiation and briefing, concept and feasibility, and design development; CHSAs have contributed to and impacted on H&S inadequate knowledge and experience due to a lack of appropriate tertiary education lead to their limited status, exclusion from decision making and management of the project, and not being consulted.
WORKING WITH AVAILABLE RESOURCES TO DEVELOP LOCAL KNOWLEDGE TO SUSTAIN DEVELOPMENT DURING CRISES
Authors: Villacis Enrique , Rodriguez Maria Lorena , Ayarza Cynthia
Published: March 2020

This past April 2016 the coast of Ecuador suffered a devastating magnitude 7.8 earthquake. The automatic response was to run to the disaster area and help, not knowing that most of the time these unskilled volunteers became another casualty. Months later, government, universities etc. are working nonstop in order to responsibly restore the area. Nonetheless, are we being efficient in order to prevent the possible effects of disasters to come? Almost 70% of Latin America is built on informality, and almost 80% of the destroyed and demolished infrastructure was due the lack of technical support. As professionals and academics, are we acting where it is necessary? A crisis creates opportunities, and knowing that most of Ecuador is in constant danger because of probable natural disasters, acting local may be more effective and can have a long lasting effect, rather than focus all the resources and effort in the disaster areas. These two academic case studies, one which took place just a couple of days after the earthquake which required immediate attention and the other several months later which required a local analysis, value the endogenous work in order to build a consciousness about our reality as a stronger service than simply rebuilding.
A LINEAR PROGRAMMING APPLICATION AND SOLUTION FOR MINIMIZING CLASS SCHEDULING CONFLICTS
Authors: Humphrey Melissa , Singh Amarjit
Published: March 2020

College course scheduling plays a pivotal role in a student’s development, academically and professionally. Schools without a standardized class scheduling system can generate many scheduling conflicts – some with the potential to seriously impact the student’s course progression, and thus delay their graduation dates. The optimization model proposed in this article can identify and eliminate those scheduling conflicts through the use of visual modeling and linear programming. Constraints for this model were taken from the individual department’s requirements and prerequisites, and instructor preferences, while allowing for the maximum number of available classes by minimizing and/or eliminating the number of class overlaps. An iterative process of analyzing and improving the schedule between visual modeling and linear programming enables the optimal result to be attained. This modeling system was applied to eight different semester schedules at an ABET-accredited university. The applied methodology yielded results of improved scheduling by an average of 83.46% over the original schedule, with a statistical confidence of 95.14%. By reducing the overall number of possible scheduling conflicts, it provides the students with more options and the ability to succeed. This type of class scheduling technique is not known to exist outside this study. The success rate of this technique far outstrips any success rate by any other documented method.
THE IMPORTANCE OF ISO 55000 IN SMALL AND MEDIUM SIZED ENTERPRISES
Authors: Paris Desiree , Severino Manuel
Published: March 2020

All sectors are facing an increasing competitive situation, therefore economic analyzes are increasing in importance in asset management. The market dynamics tends to a continuous improvement. The objectives of profitability and life cycle costs have a significant influence on the strategy of assets and strategic decisions in the organization, so it is important to analyze capex and opex to be able to define the strategies to take. What happens when we are in a medium or small company? Generally, the answer to this is that asset management only takes place on large companies. In this research, the application of an international standard model, such as ISO 55000 in asset management, for medium and small companies, becomes relevant. This standard covers a whole concept of control, monitoring and improvement, which explains what should be done. The application of a management model based on the standard allows meeting specific requirements and characteristics. Our conclusion is that any entity, regardless of its size should establish a strategy in its asset management and ISO 55000 could help them in developing that strategy.
ANALYSIS OF EMPIRICAL COMPRESSION INDEX EQUATIONS USING THE WATER CONTENT
Authors: Al-Khafaji Amir W. , Maillacheruvu Krishnanand Y. , Hoerber Melissa
Published: March 2020

This paper proposes a new method to evaluate the reliability of published empirical formulas in terms of accuracy and applicability to different soil types. Different empirical models are proposed to properly approximate the compression index for a wide range of water contents and soil types. They were developed using a unique technique and a substantial number of published regression equations and compression data. Familiar empirical equations were examined for their reliability in predicting the compression index of clay for any water content. A comparison was made between available and newly-proposed empirical formulas using combined regression data sets compiled independently by several authors. The newly proposed empirical compression index equations are applicable to a wide range of clay soils, and in validating other published relationships. The degree of scatter and variations in the computed compression index values are minimized for any water content.
ESTIMATION OF DYNAMIC RESPONSES ON CONTOURS OF SEVERAL ROUND CUTS AT THIN PLATE VIBRATIONS
Authors: Kolesnikov Aleksey , Popov Vladimir
Published: March 2020

According to most theoretical and experimental researches, wave models quite fully and accurately describe the process of foundation vibration in the soil ground. Thus, solutions obtained for the vibration of an infinite plate with a circular cut are successfully used today to determine the amplitude-frequency characteristics of the pile foundations; however, the results of the cases with more than one cut are practically needed. In this paper, analytical expressions are found for dynamic stiffness within the wave model framework regarding the vertical vibrations of an infinitely thin plate with circular cuts, their mutual alignment being regarded. Determined expressions take into account the distance between piles located in a row or in a group. Obtained results can be used for the calculations of amplitude-frequency characteristics of pile foundations.
CALCULATION OF THE LABOR CONSUMPTION RATE FOR SHUTTERING WORKS WHILST CONSIDERING UNCERTAINTIES
Authors: Kummer Markus
Published: March 2020

Calculating construction costs and times is one of the most important and demanding tasks in construction management and economics. To arrive at a realistic calculation base, valid data and information is constantly being sought for labor consumption rates, output rates, productivity, material consumption, volumes in stock, number of transport cycles, and cost and time parameters that must be estimated or calculated ex ante. Ultimately, final cost and time parameters must be determined on the basis of such considerations and calculations. Accurate figures must be stated or submitted at the end of any analysis. These depend on the complexity of the building and on the conditions prevailing at the actual work stages and rely on more or less uncertain input data. One possible solution to this issue is to consider ranges that can deliver final conclusions on determined values. To systematically consider ranges in input parameters, this paper concentrates on applying probabilistic calculation methods based on Monte Carlo simulations. Key outcomes of probabilistic calculations include histograms that are used to directly capture the chance/risk ratio relative to a specific (selected) parameter. This paper presents a practical example of calculating the labor consumption rate for shuttering works to highlight the significance of the chosen chance/risk ratio and to show how it can be integrated into the systematic decision-making process adopted by the parties involved in the project.
ROBUST IFC FILES TO IMPROVE INFORMATION EXCHANGE: AN APPLICATION FOR THERMAL ENERGY SIMULATION
Authors: Chen Qian , Harmanci Yunus Emre , Ou Yaowen , Garcia de Soto Borja
Published: March 2020

Despite many efforts from software vendors, AEC community and researchers, interoperability is still one of the main issues regarding reliable and robust transfer of information among different applications. In most cases, the Industry Foundation Classes (IFC) files fail to provide proper interoperability between geometric building models (architects) and thermal simulation software (engineers). This causes time consuming interactions and manual corrections prompt to errors. This paper evaluated two approaches for an efficient and robust transfer of IFC models considering space boundary characteristics to conduct thermal energy simulation (TES). The first approach was a multi-platform process which IFC files could be used by different TES tools. The second consisted of a single-platform process in which a single CAD software with built-in energy simulation capabilities was used. The two processes were tested with a simple residential building. Results indicated that the first process still required manual corrections and its performance was influenced by the TES tool used. The second approach addressed the interoperability problems, but caused “software dependency”. It was found that geometry data reflecting different levels of space boundaries significantly influenced energy simulation results, indicating that proper definition of space boundaries improved the robustness of IFC files. This showed that IFC files can be enhanced to facilitate TES. This study also showed opportunities for improvement regarding interoperability and suggested other ways to tackle this problem.
VEHICLE CONTROL OF VEHICLES SEPARATING FROM VEHICLE PLATOON
Authors: Kita Eisuke , Sato Ryoma , Yamada Miichiro , Tamaki Tatsuhiro
Published: March 2020

Vehicle platoon is very important techniques for increasing the traffic flow safely and effectively. The electric and mechanical systems are necessary for effective vehicle platoon. Several systems have been studied for control vehicles in the platoon. This paper focuses on the velocity control of the vehicles separating from the vehicle platoon. The velocity control model is defined according to the vehicle following model and then, the parameters are determined by minimizing the objective function. The model with the optimized parameters is applied for the vehicle platoon experiment of LEGO Mindstorms NXT. The experimental results are compared with the simulation results in order to confirm the validity of the model. Although the experimental results finally converge to the simulation results, there exists the difference between the computational simulation and the experimental results because of the error of the sensor and the others.
PROJECT CONDITIONS JUSTIFYING TIME-AT-LARGE CLAIMS
Authors: Abdul-Malak Mohamed-Asem , Jaber Abed Elkhalek
Published: March 2020

The time for completion on a construction project is of great importance and is sometimes referred to as being of the essence. Having a known completion date that the contractor shall be willing to commit to carries both advantages and implications. That is, if the contractor inexcusably overruns this completion date, he becomes liable for delay damages which usually take the form of liquidated damages (LD). During the course of construction, several circumstances may surface which have the effect of the time for completion to be said to have become at large, a situation that can hinder the triggering of the LD clause by employers. This paper aims to explain the concept of time at large and its reasons and implications, while viewing its applicability under both the common and civil law systems. It highlights the conditions whose prevalence justifies the time on the construction contract to be called to have become at large. The work represents the foundation for constructing a method that can aid in systematically testing if such a calling can be viewed as justifiable.
THE EFFECT OF EARTHQUAKE ACCELERATION RECORDS AND THEIR EQUIVALENT DYNAMIC LOADS ON EARTH-DAM RESPONSES
Authors: Mamani Sara , Yazdani Siamak
Published: March 2020

This paper studies the dynamic behavior of a typical earth-dam using non-linear dynamic analysis under different earthquake records. One of the most important components in non-linear dynamic analysis of earth-dams is the evaluation of their stability considering the permanent displacement as a performance indicator. Varieties in acceleration time histories coupled with various geometry and heterogeneous material properties of the earth structures lead to diversity in non-linear responses under different real accelerograms. In this study, an equivalent harmonic load related to earthquake records with specific magnitude and frequency is defined and is applied to a 70m tall earth-dam during four real acceleration time histories. The induced-displacements were then measured under each real time record along with their defined harmonic loads at the dam crest. The resulting displacements and their harmonic equivalent loads are compared showing a good agreement in their deformations at the crest. Appropriate parameters including equivalent number of cycles and peak ground acceleration (PGA) for unique equivalent harmonic load were obtained based on the response analyses.
EVALUATION OF THE HIRSCH MODEL FOR DYNAMIC MODULUS ESTIMATION OF ASPHALT MIXTURES
Authors: Malekzehtab Hassan , Nikraz Hamid
Published: March 2020

The dynamic modulus of the asphalt mixtures is an important factor in designing or analyzing an asphalt concrete pavement, but it is expensive and time consuming to measure. Therefore, it is important to develop a model to predict this value. In this regard, the Hirsch model is a popular model, however, it is developed based on a range of U.S. asphalt mixtures and standards. Therefore, it is not certain that it can be used for asphalt mixtures based on materials and codes other than U.S. This article investigated whether this model performs satisfactorily with two typical asphalt mixtures in Western Australia (WA) containing 0, 10, 20, and 30% of recycled asphalt pavement. To do so, cylindrical samples were made with materials and locally established standards in Western Australia and then tested in Asphalt Mixture Performance Tester (AMPT) machine to acquire their dynamic modulus and phase angle values in different loading frequencies (0.01 to 10 Hz) and temperatures (4 to 40°C). Meanwhile, the results are estimated by the Hirsch model using some properties of the mixture and binder. The properties of the binder in different test conditions are obtained using a dynamic shear rheometer. The comparison of the results showed that the dynamic modulus underestimation or overestimation error can reach to 50 and 280% respectively. Generally, this model did not perform well in this study.
MECHANICAL PROPERTIES OF COCONUT FIBER-REINFORCED CONCRETE
Authors: Ng Gino , Urgessa Girum , Shifferaw Yared , Hardjasaputra Harianto
Published: March 2020

The use of natural fibers in concrete has significantly increased in recent years as a result of the push for sustainable construction. Coconut fibers, also known as coir fibers, have been used as natural fibers in concrete, particularly in some parts of Asia. This paper presents an experimental study that investigates the use of coconut fibers in concrete. Two baseline concrete mix designs were selected based on design standards with a water-cement ratio of 0.4 and 0.5 respectively. For each baseline mix design, four 20 cm x 20 cm x 1 cm concrete plates were constructed by varying the percentage of coconut fibers by weight of cement. The fiber contents studied are 0%, 0.1%, 0.175%, and 0.25%. The concrete plates were then tested to determine the mechanical properties of the coconut fiber-reinforced concrete and comparisons were made with the mix designs with 0% coconut fiber content. The results show that adding coconut fibers increases the flexural strength of concrete plates. This is particularly beneficial for low scale construction applications such as those in concrete tile production. For both mix designs, adding 0.25% of coconut fibers increased the flexural strength of the concrete plates by 90% when compared to concrete with no coconut fibers.
THERMAL RESISTANCE OF ALKALI ACTIVATED SLAG CONCRETE
Authors: Behfarnia Kiacher , Shahbaz Mohammad
Published: March 2020

This study investigated the thermal resistance of Alkali Activated Slag (AAS) concrete. Alkali Activated Slag cement is an environmentally friendly alternative to Portland cement, which can be produced by using an alkaline solution to activate the binding effect of the blast furnace slag. Heat from fire changes the physical and mechanical properties of concrete. Given the decisive role of thermal resistance in the operation and performance of structures, it is necessary to evaluate the effect of heat on the performance of AAS concrete. In this study, a series of tests were arranged to examine the effect of slag percentage on thermal resistance of AAS concrete. AAS concrete samples from mixes, with different slag percentage, were subjected to 20, 200, 400, 600, and 800˚C temperature and change in their compressive strength were measured and compared with that of samples made by ordinary Portland cement concrete. The results show that the thermal resistance of AAS concrete is higher than ordinary concrete.
Positive newborn screen: a case of a novel variant in DCLRE1C in a patient with SCID
Authors: Choe Noreen , Brick Lauren , Kozenko Mariya , Chakraborty Pranesh , Kernohan Kristin D. , Bulman Dennis , Brager Rae
Published: March 2020

Background: Artemis enzyme, encoded by the DCLRE1C gene, is essential to V(D)J recombination in both T and B lymphocytes. Artemis functions as an important component of the nonhomologous end-joining DNA double-strand break repair pathway. Artemis deficiency leads to a T-B-NK+ severe combined immune deficiency (SCID) associated with radiosensitivity.

Clinical presentation: We present a case of a positive newborn screen for SCID in a patient who was subsequently shown to have a T-B-NK+ phenotype. Further immune evaluation showed profound T and B lymphopenia, near-absent response to mitogen stimulation, and absent immunoglobulins A and M. Genetic investigation demonstrated a novel and putative pathogenic variant in the DCLRE1C gene.

Conclusion: This case identifies a novel variant in the DCLRE1C gene in a patient with SCID identified by newborn screening.

Statement of novelty: This case report identifies a novel variant in the DCLRE1C gene in a patient with T-B-NK+ SCID.
Bell–Sheffer exponential polynomials of the second kind
Authors: Natalini Pierpaolo , Ricci Paolo Emilio
Published: March 2020

In recent papers, new sets of Sheffer
and Brenke polynomials based on higher order Bell numbers
and several integer sequences related to them have been studied.
In the present paper, new sets of Bell–Sheffer polynomials
are introduced. Connections with Bell numbers are shown.
Establishment of a Peace Regime on the Korean Peninsula: Definition, Process, and Cooperation
Authors: Lee Jootaek
Published: March 2020

Depending on how we define a peace regime, we can determine whether we have reached a peace regime on the Korean peninsula, or what and how we have to pursue to reach a peace regime. A new definition of a regime should not be too broad to admit the current balance of powers based on hegemonies and states’ patterns of behaviors, or too restrictive and formal to codify as a multi-national treaty; a simple peace treaty cannot cover everything a peace regime needs to have and reflect the complicated process of peace building, cooperation and tension-reduction. In this paper, I will attempt to find the most-realistic definition for a peace regime to provide an ultimate peace on the Korean peninsula. Further, I will think about how to reach the newly defined peace regime on the Korean peninsula and the obstacles to overcome to reach this peace regime, including: (1) Denuclearization; and (2) How a peace regime can be transnationally supported and peacefully digested and incorporated into the domestic level processes and norms, especially considering that reaching a regime reflecting national interests is a daunting task. Lastly, I will conclude with recommendations for states surrounding the Korean peninsula.
Reimagining Law and the Constitution: Carl Schmitt and American Constitutional Scholarship
Authors: Ding Xiaodong
Published: March 2020

This article studies the debate between Schmitt’s theory and legal positivism, which Schmitt identifies as a typical liberal theory of law. Schmitt’s theory, I argue, provides a powerful critique of legal positivism, while offering a meaningful, alternative understanding of law that begins not with norms, but with the will of a legitimate decider. To demonstrate the continuing relevance of the debate Schmitt had with legal positivism, I turn to what I describe as a similar legal positivism/Schmitt debate in American constitutional scholarship. Ultimately, I take a side in this debate, arguing for a fully Schmittian understanding of the Constitution as the will or continuous decision of the people, rather than as positive constitutional norms existing independently of politics.
Groups in which the centralizer of any non-central element is maximal
Authors: Zhao Xianhe , Chen Ruifang , Guo Xiuyun
Published: March 2020

Let x be an element of a finite group G.
It is clear that

〈
x
〉

≤

C
G

⁢

(
x
)

≤
G

{\langle x\rangle\leq C_{G}(x)\leq G}

.
For the cases where

C
G

⁢

(
x
)

=
G

{C_{G}(x)=G}

and

C
G

⁢

(
x
)

=

〈
x
〉

{C_{G}(x)=\langle x\rangle}

for any element x of G, the structure of G is easily decided.
In this paper, we investigate the case where

C
G

⁢

(
x
)

{C_{G}(x)}

is maximal in G and obtain the structure of G.
Coset posets of infinite groups
Authors: Bux Kai-Uwe , Welsch Cora
Published: March 2020

We consider the coset poset associated with the families of proper subgroups, proper subgroups of finite index and proper normal subgroups of finite index.
We investigate under which conditions those coset posets have contractible geometric realizations.
Identification of the diffusion coefficient in a time fractional diffusion equation
Authors: Salehi Shayegan Amir Hossein , Zakeri Ali , Bodaghi Soheila , Heshmati M.
Published: March 2020

In this paper, we study the existence and uniqueness of a quasi solution to a time fractional diffusion equation related to

D
t
α

C

⁢
u

-

∇
⋅

(

k
⁢

(
x
)

⁢

∇
⁡
u

)

=
f

{{}^{C}D_{t}^{\alpha}u-\nabla\cdot(k(x)\nabla u)=f}

, where the function

k
=

k
⁢

(
x
)

{k=k(x)}

is unknown.
We consider a methodology, involving minimization of a least squares cost functional, to identify the unknown function k.
At the first step of the methodology, we give a stability result corresponding to connectivity of k and u which leads to the continuity
of the cost functional.
We next construct an appropriate class of admissible functions and show that a solution of the minimization problem exists for the continuous cost functional.
At the end, convexity of the introduced cost functional and subsequently the uniqueness theorem of the quasi solution are given.
Direct and inverse source problems for degenerate parabolic equations
Authors: Hussein M. S. , Lesnic Daniel , Kamynin Vitaly L. , Kostin Andrey B.
Published: March 2020

Degenerate parabolic partial differential equations (PDEs) with vanishing or unbounded leading coefficient make the PDE non-uniformly parabolic, and new theories need to be developed in the context of practical applications of such rather unstudied mathematical models arising in porous media, population dynamics, financial mathematics, etc.
With this new challenge in mind, this paper considers investigating newly formulated direct and inverse problems associated with non-uniform parabolic PDEs where the leading space- and time-dependent coefficient is allowed to vanish on a non-empty, but zero measure, kernel set.
In the context of inverse analysis, we consider the linear but ill-posed identification of a space-dependent source from a time-integral observation of the weighted main dependent variable.
For both, this inverse source problem as well as its corresponding direct formulation, we rigorously investigate the question of well-posedness.
We also give examples of inverse problems for which sufficient conditions guaranteeing the unique solvability are fulfilled, and present the results of numerical simulations.
It is hoped that the analysis initiated in this study will open up new avenues for research in the field of direct and inverse problems for degenerate parabolic equations with applications.
Wild sets in global function fields
Authors: Czogała Alfred , Koprowski Przemysław , Rothkegel Beata
Published: March 2020

Given a self-equivalence of a global function field, its wild set is the set of points where the self-equivalence fails to preserve parity of valuation. In this paper we describe structure of finite wild sets.
Strongly increasing solutions of higher-order quasilinear ordinary differential equations
Authors: Naito Manabu , Usami Hiroyuki
Published: March 2020

In this paper we discuss the existence and asymptotic behavior of strongly increasing solutions of quasilinear ordinary differential equations of the form

D
(

α
n

,

α

n
−
1

,
…
,

α
1

)
x
=
p
(
t
)

|

x

|

β

 sgn 
x
,

t
≥
a
.

$$\begin{array}{}
\displaystyle D(\alpha_n, \alpha_{n-1}, \dots, \alpha_1)x = p(t)|x|^{\beta}\text{ sgn } x, \quad t \geq a.
\end{array} $$

(1.1)

It will be shown that there is an explicit difference between the cases α
1
α
2 ⋯ αn
≥ β and α
1
α
2 ⋯ αn
< β for the structure of the totality of strongly increasing solutions of (1.1).
The lattices of families of regular sets in topological spaces
Authors: Przemska Emilia
Published: March 2020

The question as to the number of sets obtainable from a given subset of a topological space using the operators derived by composing members of the set {b, i, ∨, ∧}, where b, i, ∨ and ∧ denote the closure operator, the interior operator, the binary operators corresponding to union and intersection, respectively, is called the Kuratowski {b, i, ∨, ∧}-problem. This problem has been solved independently by Sherman [21] and, Gardner and Jackson [13], where the resulting 34 plus identity operators were depicted in the Hasse diagram. In this paper we investigate the sets of fixed points of these operators. We show that there are at most 23 such families of subsets. Twelve of them are the topology, the family of all closed subsets plus, well known generalizations of open sets, plus the families of their complements. Each of the other 11 families forms a complete complemented lattice under the operations of join, meet and negation defined according to a uniform procedure. Two of them are the well known Boolean algebras formed by the regular open sets and regular closed sets, any of the others in general need not be a Boolean algebras.
Investigation of Pigments on an Indian Palm Leaf Manuscript (18th – 19th century) by SEM-EDX and other Techniques
Authors: Singh M. R. , Sharma Deepakshi
Published: March 2020

This paper discusses pigments used in Indian palm leaf manuscripts. Formerly it was believed that pigments for palm leaf illustrations were mostly sourced from plant extracts – a believe that is still widespread in India. This paper reports the identification of pigments of an illustrated palm leaf manuscript (eighteenth – nineteenth century) collected from the east coast of India. As Raman spectra of many pigments gave too high background noise, the identification was mostly accomplished through SEM-EDX and FTIR spectroscopy. The analytical findings indicated that both mineral colours and plant extracts were sourced for Indian palm-leaf manuscripts. Analysis indicated the use of lamp black for black, indigo for blue, vermillion for red, orpiment for yellow, china clay for white and a mixture of orpiment and indigo for green coloration in the illustrations. The data has improved our knowledge of historic pigments used in palm leaf illustrations. As some of the pigments are either photosensitive or darken due to atmospheric pollution, necessary preventive conservation measures need to be adopted.
A esperança da revolução representada pela figura de Luiz Carlos Prestes no filme Olga
Authors: Barbosa Vinicius Sales
Published: March 2020

O presente artigo consiste na análise do filme Olga (2004), que conta a história de Olga Benário em sua luta como militante comunista, prisioneira do regime nazista e, principalmente, sua relação com o Cavaleiro da Esperança, Luiz Carlos Prestes. Ainda que a obra aborde a biografia de Olga, o intuito desta pesquisa é destrinchar o filme em três pontos essenciais para o entendimento de sua estrutura e, posteriormente, apresentar as perspectivas historiográficas a respeito da Intentona Comunista, o papel da Aliança Nacional Libertadora (ANL) e do Partido Comunista Brasileiro (PCB) no movimento e, como objetivo central, trabalhar a esperança da revolução que o filme confere à figura de Luiz Carlos Prestes.Palavras-Chave: Olga, Cinema, História, Religião.AbstractThis article analyzes the movie Olga (2004), which tells the story of Olga Benário in her fight as a communist militant, a prisoner of the Nazi regime, and especially her relationship with the Knight of Hope, Luiz Carlos Prestes. Although the work approaches the biography of Olga, the intention of this research is to unravel the film in three essential points for the understanding of its structure and, later, to present the historiographical perspectives regarding the Communist Uprising of 1935, the role of the National Liberating Alliance (ANL) and the Brazilian Communist Party (PCB) in the movement and, as a central objective, to study the hope of the revolution that the film confers to the figure of Luiz Carlos Prestes..Keywords: Olga, Cinema, History, Religion.
O uso da Cultura Pop nas aulas de História
Authors: Lobo Renato Fernandes
Published: March 2020

O artigo expõe argumentos convenientes ao emprego de produtos da cultura pop em sala de aula, considerando seu potencial lúdico ao processo pedagógico, principalmente na disciplina de História. Nesse sentido, o pensamento de Umberto Eco (1990) sobre Cultura de Massa e as reflexões de Waldomiro Vergueiro (2014) sobre o uso dos quadrinhos no ambiente escolar, possibilitaram a criação de uma base teórica para o desenvolvimento de projetos que relacionem temas transversais, como a defesa dos direitos humanos, com o universo dos quadrinhos de super-heróis.Palavras-Chave: Cultura Pop, Cultura de Massa, Quadrinhos.Abstract:The article presents convenient arguments to the use of pop culture products in the classroom, considering its ludic potential to the pedagogical process, especially in the discipline of history. In this sense, the thoughts of Umberto Eco (1990) on mass culture and the reflections of Waldomiro Vergueiro (2014) on the use of comic books in the school environment enabled the creation of a theoretical basis for the development of projects that relate transversal themes, such as the defence of human rights, with the universe of superhero comic books.Keywords: Pop Culture, Mass Culture, Comic books.
A guerra contra a escravidão: Lutas pela liberdade no Pernambuco Imperial (1850-1870)
Authors: Souza Arthur Danillo Castelo Branco de
Published: March 2020

As fugas escravas podem ser consideradas o aspecto mais comum de resistência à dominação escravista em toda história da escravidão. A formação de quilombos acontecia após uma fuga inicial por parte dos cativos que viriam a ser denominados quilombolas. As pequenas fugas para visitar parentes, amigos, cônjuges, possibilitaram aos cativos espaços e fragmentos de “liberdade” para poderem resistir e existir em cativeiro ao longo de suas vidas. Neste trabalho procuramos analisar, a partir dos anúncios de escravos fugidos retirados do Diário de Pernambuco e do Jornal do Recife, como as fugas individuais e coletivas atormentaram a instituição escravista brasileira em anos de desagregação do sistema escravista.Palavras-chave: Escravidão, Fugas, Pernambuco.AbstractRunaway slaves can be considered one of the most common resistance aspects to slavery throughout its history. The formation of quilombos happened after an initial escape by the captives that would then be called quilombolas. The little escapes to visit family, friends and loved ones made possible to the captives spaces and fragments of ‘liberty’ so they could resist and exist in captivity during their lives. In this paper we seek to analyze, from the advertisements of runaway slaves taken from the Diário de Pernambuco and Jornal do Recife, how individual and collective escapes plagued the Brazilian slave institution in years of disintegration of the slave system.Keywords: Slavery, Escapes, Pernambuco.
Harry Potter e Bestiários: A fênix enquanto representação do “Salvador”
Authors: Borges Dandriel Henrique Da Silva
Published: March 2020

em diferentes tempos: durante o final do Medievo (na cronologia da Europa Ocidental), no entorno do século XII, e na contemporaneidade, retratada pelo universo cinematográfico da saga Harry Potter. Para entender seu papel no medievo serão analisadas versões traduzidas para o inglês de dois bestiários datados do entorno do século XII, Book of Beasts e Aberdeen Bestiary, enquanto sua representação contemporânea será analisada a partir de cenas dos seguintes filmes: Harry Potter e a Câmara Secreta, Harry Potter e a Ordem da Fênix e Harry Potter e as Relíquias da Morte: Parte 2. A partir do entendimento do papel social das narrativas sobre essa figura no final da Idade Média serão então traçados paralelos com o que fora retratado nos filmes, buscando analisar se houve a reapropriação de suas características e funções.Palavras-chaves: Harry Potter, Bestiários, Book of Beasts e Aberdeen BestiaryAbstractThis paper proposes to make an analysis of how the fantastic figure of the phoenix had been worked at different times: during the end of Middle Ages (in Western European chronology), around the twelfth century, and contemporaneously, portrayed by the cinematographic universe of the Harry Potter saga. In order to understand its role in the Middle Ages, versions translated into English of two bestiaries dated from the twelfth century will be analyzed, Book of Beasts and Aberdeen Bestiary, while their contemporary representation will be analyzed from scenes from the following films: Harry Potter and the Chamber of Secrets , Harry Potter and the Order of the Phoenix and Harry Potter and the Deathly Hallows: Part 2. From the understanding of the social role of the narratives about this figure in the late Middle Ages a parallel will be drawn to what was portrayed in the films, seeking to analyze whether there was a reappropriation of its characteristics and functions.Keywords: Harry Potter, Bestiaries, Book of Beasts e Aberdeen Bestiary
A Tolerantia no século XIII: uma breve revisão bibliográfica sobre as Minorias na Península Ibérica
Authors: Lacerda Léo Araújo
Published: March 2020

Este artigo objetiva elaborar uma breve revisão bibliográfica sobre a temática das minorias étnico-religiosas, sefarditas e mudéjares, no século XIII, no contexto Ibérico, ao mesmo tempo em que apresenta algumas discussões referentes à tolerância atribuída à Alfonso X, rei de Castela e Leão (1252-1284). Com isso, procura-se expor os limites da (in)tolerância manifestada pelo rei Sábio a fim de aprofundar o debate ressaltando os aspectos conflitivos do relacionamento entre cristãos, judeus e muçulmanos.Palavras-chaves: Tolerância; Convivência; Espanha Medieval; Século XIII.AbstractThis article aims to elaborate a brief bibliographical review about the theme of ethnic-religious, Sephardic and Mudejar minorities in the 13th century, in the Iberian context, while presenting some discussions regarding the tolerance attributed to Alfonso X, king of Castile and León (1252-1284). In this way, we seek to expose the limits of (in) tolerance manifested by the Wise King in order to deepen the debate by highlighting the conflicting aspects of the relationship between Christians, Jews and Muslims.Keywords: Tolerance; Coexistence; Medieval Spain; 13th Century.
A representação dos negros na História do Brasil: narrativas de manuais didáticos na construção nacional e identitária brasileira
Authors: Assis Cristina Ferreira de
Published: March 2020

O presente trabalho visa discutir e apresentar os resultados iniciais de uma investigação acerca da representação dos negros nos primeiros manuais didáticos de História do Brasil na Primeira República. Optou-se pelo período compreendido entre 1914 e 1925 em virtude do contexto pós-abolicionista e de introdução das ideias republicanas. A opção pelos manuais se alicerça na observação de que as obras didáticas foram importantes meios de divulgação de valores, assim como não estavam isentas de concepções do período no qual foram elaboradas. Alguns dos resultados da pesquisa revelam um período onde a classe intelectual dominante, especialmente a partir do Instituto Histórico e Geográfico Brasileiro, queria extirpar do Brasil toda a lembrança da África que respectivamente se remetia ao período escravocrata.Palavras-chave: manuais de História do Brasil, negros, naçãoAbstractThe present paper aims to discuss and present the initial results of an investigation about the representation of blacks in the first didactic manuals of History of Brazil in the First Republic. The period between 1914 and 1925 was chosen because of the post-abolitionist context and the introduction of republican ideas. The option of the manuals is based on the observation that the didactic materials were important means of disseminating values, as well as were not exempt from conceptions of the period in which they were elaborated. Some of the results of the research reveal a period in which the dominant intellectual class, especially from the Brazilian Historical and Geographical Institute, wanted to extirpate from Brazil all the remembrance of Africa that was reminiscent from the slave period.Keywords: History of Brazil manuals, blacks, nation.
Apresentação - Vol. 4, nº 6
Authors: Ofícios de Clio Equipe
Published: March 2020

Apresentação - Vol. 4, nº 6 - Equipe Ofícios de Clio
The UCSF Mouse Inventory Database Application, an Open Source Web App for Sharing Mutant Mice Within a Research Community
Authors: Wall Estelle , Scoles Jonathan , Joo Adriane , Klein Ophir , Quinonez Carlo , Bush Jeffrey O , Martin Gail R , Laird Diana J
Published: March 2020

The UCSF Mouse Inventory Database Application is an open-source Web App that provides information about the mutant alleles, transgenes, and inbred strains maintained by investigators at the university and facilitates sharing of these resources within the university community. The Application is designed to promote collaboration, decrease the costs associated with obtaining genetically-modified mice, and increase access to mouse lines that are difficult to obtain. An inventory of the genetically-modified mice on campus and the investigators who maintain them is compiled from records of purchases from external sources, transfers from researchers within and outside the university, and from data provided by users. These data are verified and augmented with relevant information harvested from public databases, and stored in a succinct, searchable database secured on the university network. Here we describe this resource and provide information about how to implement and maintain such a mouse inventory database application at other institutions.
Characterization and determination of antimicrobial and metal resistant profiles of Xanthomonas strains isolated from natural environments
Authors: Velásquez Cristóbal Lárez , Rojas Maura , Peña Milibeth , Peña-Vera María José , Sulbarán Miguel , Pérez Elizabeth
Published: March 2020

Three Xanthomonas strains were isolated from natural environments in Venezuela and studied morphologically, subjected to biochemical characterization and microbiologically and molecularly identified. In order to reconfirm the identity of these strains, the production of xanthan was induced for Xanthomonas campestris and Xanthomonas vesicatoria isolates, obtaining a yield of 7 and 35mg/100mL of culture, respectively; the characterization by FTIR spectroscopy of the obtained products confirmed the formation of xanthan during the growth of the strains. Characterized strains were submitted to resistance studies to 14 commercial antibiotics of clinical use as well as to 10 metal salts were carried out in Luria Bertani (LB) medium, which disturbingly confirmed these Xantho-monas strains present important percentages of resistance to the antibiotics (79%) and to the salts (50%) tested.
Linking Out Loud (LOL): Developing critical thinking
Authors: Foster Wendy , Sweet Linda , McNeill Liz
Published: March 2020

This article was migrated. The article was marked as recommended. Background: Developing critical thinking in health care education is pivotal in student development and patient outcomes. Gamification and learning through play within health care education is rising in popularity and may assist to develop problem-solving and critical thinking skills. Aim: To develop and enhance students' capacity to rapidly recall and communicate critical links in practice through a modified 'snap' game. Method: Students are provided decks of cards depicting clinical pictures (syringe, bath, blood, medications etc). Turning over two cards at a time, the students race to link the two concepts together. Findings: Linking Out Loud was well received by students and worked to develop knowledge, critical thinking, communication and problem-solving. Linking Out Loud could be easily replicated for all health disciplines.
Review of Intervention in the Brain: Politics, Ethics, and Policy by Robert H. Blank
Authors: Charney Evan
Published: March 2020

Politics, Policy, and Ethics contains informative chapters on the history of psychiatric “brain intervention” from lobotomies to deep brain stimulation; how advances in neuroscience have impacted the definition of death; and the commercial and military applications of new neuroscience technologies. The bulk of the book, however, is devoted to making the argument that advances in neuroscience have significantly advanced our understanding of social, political, and moral behavior.
Review of Two Presidents Are Better Than One: The Case for a Bipartisan Executive Branch by David Orentlicher
Authors: Dowdle Andrew
Published: March 2020

In Two Presidents Are Better Than One, David Orentlicher begins by identifying the growth of the imperial presidency and the rising polarization between the two major political parties as two of the major systemic problems plaguing national politics. He proposes a unique solution that metaphorically kills both of the birds with one stone: a dual presidency.
GRUP PİYANO EĞİTİMİNİN ÖĞRENCİ GÖRÜŞLERİ ÇERÇEVESİNDE DEĞERLENDİRİLMESİ
Authors: ÖZALP Uğur , ÖZDEMİR Gökhan
Published: March 2020

Bu araştırmanın amacı, grup piyano eğitiminden elde edilen kişisel kazanımları, piyano becerilerini ve sosyal/kültürel kazanımları öğrenci görüşlerine dayalı olarak belirlemek ve bazı değişkenlere göre istatistiksel olarak anlamlı farklılaşmaların olup olmadığını incelemektir. Araştırma tarama modeline uygun betimsel niteliktedir. Araştırmanın çalışma grubu, Mehmet Akif Ersoy Üniversitesi grup piyano laboratuvarı ile Akdeniz Üniversitesi grup piyano laboratuvarında öğrenim gören 71 öğrenciden oluşmaktadır. Araştırmanın verileri, araştırmacı tarafından alan uzmanlarının görüşleri ve literatür taraması yapılarak oluşturulan yapılandırılmış görüşme formu ile toplanmıştır. Verilerin analizi için yüzde, frekans, ortalama ve standart sapma hesaplanmış, gruplar arası farkın belirlenmesi için anova ve t testinden yararlanılmıştır. Araştırma sonuçlarına göre, öğrencilerin grup piyano eğitiminden kazandıkları kişisel kazanımlara, piyano becerilerine ve sosyal/kültürel kazanımlara ilişkin görüşlerinin “yüksek” ve “oldukça yüksek” düzeyde olduğu, cinsiyet, yaş, eğitim ve düzey değişkenine göre de anlamlı farklılık göstermediği tespit edilmiştir.
TÜBİTAK 4004 DOĞA LAB: DOĞADA SORGULAMA TEMELLİ BİLİM PROJESİNİN ÖĞRENCİLERİN BİLİM İNSANI İMAJ VE GÖRÜŞLERİNE ETKİSİ
Authors: SEZEN VEKLİ Gülşah , ÇİLSALAR SAGNAK Hatice , YAMAN Fatma
Published: March 2020

Bilimsel araştırma; doğada yaşanan olayların sırrını çözmeyle
ilgili sorgulama yaparak kanıtlar toplama sürecidir. Bu
kapsamda “Doğa_Lab: Doğada Sorgulama Temelli Bilim” isimli proje;
gizemi, doğada yaşanan olaylara uyarlayarak bilimi eğlenceli bir öğrenme/keşif
etkinliğine dönüştürmeyi hedeflemektedir. Projede, doğada sorgulama temelli
bilim etkinlikleriyle öğrencilerin olay ve olguları bilimsel bir bakış açısıyla
algılamaları, bilime ve bilim insanına merak ve ilgilerinin artırılması ve
sorgulayıcı öğrenme becerilerinin geliştirilmesi amaçlanmaktadır. Bu amaçları
gerçekleştirmek için 24 ortaöğretim 8. sınıf öğrencisi ve farklı üniversitelerde
öğrenim gören 12 fen bilgisi öğretmen adayı Yozgat Milli Parkı’nda kampa
alınmıştır. Kamp çalışmaları 7 gün süreyi kapsamakta olup, toplamda 36 öğrenci
ve öğretmen adayının katılımıyla gerçekleştirilmiştir. Kamp programında;
biyoçeşitlilik, iklim değişikliği, su hayattır, doğada enerji, kirleticiler
temaları çerçevesinde sorgulama temelli bilim etkinliklerine yer verilmiştir.
Proje, eylem araştırması yöntemiyle yürütülmüştür. Bu çalışmada projenin
ortaokul öğrencilerinin bilim insanı imaj ve görüşlerine etkisi incelendiği
için Bilim İnsanı Görüş Anketi ve DAST’tan elde edilen veriler analiz
edilmiştir. Nicel veriler SPSS 20 programında parametrik olmayan testlerden
Wilcoxon testi kullanılarak, nitel veriler ise içerik analizine tabi tutularak
analiz edilmiştir. Çalışma sonucunda; öğrencilerin bilim insanının cinsiyeti,
yaptığı çalışmalar ve bilim insanının karakteri, duyguları, özellikleri ve
çalışma hayatıyla ilgili düşüncelerinde kamp öncesi ve sonrasında anlamlı
düzeyde bir farklılığın olmadığı belirlenmiştir. Bununla birlikte öğrencilerin
bilim insanının, yaşı, cinsiyeti ve sosyal faaliyetleri ile ilgili geleneksel
görüşlerinin olumlu yönde değiştiği görülmektedir.