bluuebunny/crossref_metadata_2025 huggingface dataset:
Współczynnik plonowania odmian ziemniaka uprawianych w dwóch systemach produkcji
Authors: Zarzyńska Krystyna , Boguszewska-Mańkowska Dominika , Barbaś Piotr
Published: January 2020

Badania przeprowadzono w latach 2014–2016 w dwóch miejscowościach w Polsce: Stacja Doświadczalna IUNG w Osinach na glebie kompleksu żytniego bardzo dobrego i w Instytucie Hodowli i Aklimatyzacji Roślin w Jadwisinie na glebie kompleksu żytniego słabego. Ziemniaki uprawiano w obu miejscowościach w dwóch systemach produkcji — ekologicznym i integrowanym. W badaniach oceniano 6 odmian ziemniaka należących do dwóch grup wczesności — wczesnych i średnio wczesnych. W pełni rozwoju roślin określano ich masę nadziemną, a w czasie zbioru wielkość plonu. Współczynnik plonowania określano jako udział masy bulw w całej masie nadziemnej i podziemnej. Stwierdzono, że na współczynnik plonowania roślin ziemniaka największy wpływ miał czynnik odmianowy. System produkcji i warunki glebowo-klimatyczne nie wpłynęły na wielkość tego wskaźnika. Zakres współczynnika plonowania był szeroki i wynosił w zależności od odmiany, warunków środowiska i systemu produkcji od 50 do 83%, co oznacza, że w sprzyjających warunkach aż 83% asymilatów może być ulokowane w bulwach
Faktor yang Berhubungan Terhadap Kejadian Partus Lama di Rumah Sakit AL Jala Ammari Makassar 2019
Authors: Ruqaiyah Ruqaiyah , Asrianingsih Dewi , Yusuf ST. Yustika
Published: January 2020

Berdasarkan data yang diperoleh dari hasil pencatatan dan pelaporan Rumah Sakit Angkatan Laut Jala Ammari Makassar menyatakan bahwa jumlah persalinan pada tahun 2017 periode Januari-Desember sebanyak 1.108, Pada tahun 2018 periode Januari-Desember sebanyak 1.258, Sedangkan pada tahun 2019 periode Januari-April sebanyak 76 orang. Tujuan dilakukan penelitian ini adalah untuk mengetahui hubungan antara Usia Ibu, Posis Janin, Berat Badan Bayi Lahir dan Paritas terhadap kejadian partus lama di Rumah Sakit AL Jala Ammari Makassar Januari – April 2019. Penelitian ini menggunakan metode penelitian dengan menggunakan pendekatan Cross Sectional Study untuk mengetahui hubungan antara usia ibu dan posisi janin terhadap kejadian partus lama Di Rumah Sakit AL Jala Ammari Makassar dengan jumlah  populasi sebanyak 76 orang dengan menggunakan teknik total sampling. Dari hasil uji statistic dengan menggunakan uji Chi-Square (pearson chi-square) diperoleh untuk variabel usia ibu nilai p = 0,000 < α = 0,05 artinya ada hubungan antara usia ibu dengan kejadian partus lama. Untuk variabel posisi janin nilai p = 0,000 < 0,050 artinya ada hubungan antara posisi janin dengan partus lama. Dari hasil uji statistik dengan menggunakan uji Chi-Square diperoleh untuk variabel hubungan berat bayi lahir dengan kejadian partus lama nilai P (0,000) >α = 0,05 artinya ada hubungan antara berat bayi lahir dengan kejadian partus lama. Untuk variabel hubungan paritas dengan kejadian partus lama nilai P (0,000) > α = 0,05 artinya ada hubungan antara paritas dengan kejadian partus lama.
In situ LA-ICP-MS U-Pb geochronology and trace element analysis of hydrothermal titanite from the Jiepai W-Cu deposit, South China: Implications for W mineralization
Authors: Li Jia Dai , Li Xiao Feng , Xiao Rong
Published: January 2020

Titanite is associated with scheelite in altered biotite granite, clinopyroxene skarn, actinolite skarn, clinozoisite skarn, and quartz veins in the Jiepai W-Cu deposit, South China. Textural and geochemical characteristics indicate a hydrothermal origin for the titanite. There is compositional variability with respect to the rare earth element (REE) and high field strength element (HFSE) components in titanite from the different rock types. Interstitial titanite from the clinopyroxene (-garnet-vesuvianite) skarn displays low to moderate concentrations of REE (1212–1693 ppm), Nb (1337–1911 ppm), Ta (16–24 ppm), and W (26–42 ppm); low LREE/HREE (0.36–0.47) yet high Nb/Ta (47–85) ratios; along with weak negative Eu (0.71–0.90) and positive Ce (1.1–1.2) anomalies. By contrast, titanite from the actinolite and clinozoisite skarns shows generally higher concentrations of REE (2721–11,550 ppm), Nb (4350–24,228 ppm), Ta (1346–11,781 ppm), and W (32–337 ppm); highly variable LREE/HREE (0.14–0.70) but lower Nb/Ta (0.61–5.6) ratios; along with stronger yet variable negative Eu (0.02–0.14) and positive Ce (1.2–1.6) anomalies. Furthermore, the quartz vein-hosted titanite differs from those occurring in retrograde skarns in its significantly higher LREE/HREE ratios (0.78–6.3) and distinct Eu anomalies, which vary from negative to positive (0.15–1.2). Accordingly, the shift from relatively oxidizing to reducing conditions, as recorded by δEu and δCe in titanite, together with the different LREE/HREE and Nb/Ta ratios of the mineralizing fluids, as constrained by fluid composition and fractional precipitation, took place during emplacement of the hydrothermal W mineralization. In situ LA-ICP-MS U-Pb dating of hydrothermal titanite from the mineralized clinozoisite skarn, quartz vein, and actinolite skarn, respectively, yielded weighted mean 207Pb-corrected 206Pb/238U ages of 427 ± 5 Ma, 427 ± 4 Ma, and 426 ± 7 Ma (1σ), indicative of the dominant Silurian W skarn mineralization at Jiepai. Our new U-Pb data are consistent with published ages for igneous and ore-forming activities in other major W (-polymetallic) deposits in the Miao'ershan-Yuechengling pluton, highlighting the capability of Early Paleozoic granites to develop W (-polymetallic) deposits in South China. Additionally, hydrothermal titanite carrying considerable concentrations of Nb, Ta, and W along with variable Nb/Ta ratios holds potential for deciphering the fluid chemistry and sources for W-skarn deposits elsewhere.
Andymcdonaldite (Fe3+2Te6+O6), a new ferric iron tellurate with inverse trirutile structure from the Detroit district, Juab County, Utah
Authors: Coolbaugh Mark F. , McCormack John K. , Raudsepp Mati , Czech Edith , McMillan Rhy , Kampf Anthony R.
Published: January 2020

Andymcdonaldite is a new ferric-iron-tellurate mineral that occurs within Au-, Te-, and Bi-rich jasperoid at the Wildcat prospect in the Detroit district, Juab County, Utah. The mineral has a yellow-brown to brownish-black color, occurs as extremely cryptocrystalline (11–25 nm) material in thin films and breccia matrix fillings, and is associated with gold (native), tellurium (native), beyerite, clinobisvanite, and a variety of tellurium oxysalt minerals that include carlfriesite, eckhardite, frankhawthorneite, khinite, mcalpineite, paratellurite, tellurite, tlapallite, and xocolatlite. This is the first known natural occurrence of a phase with an ordered (tetragonal) inverse trirutile structure (A3+2B6+O6) which has many synthetic representatives. The B site in andymcdonaldite is occupied by Te and the A site is dominated by Fe with up to approximately 14 mole% substitution by other cations. An empirical formula of (Fe1.74Cu0.12Mn0.06Al0.05Mg0.05)Σ2.02Te1.01O6 was obtained from electron microprobe analyses.

Powder X-ray diffraction data, Raman spectra, and unit-cell dimensions for andymcdonaldite strongly resemble those for the synthetic analogue, Fe3+2Te6+O6. The strongest X-ray diffraction lines are [dobsÅ(Iobs)(hkl)]: 4.14(27)(101), 3.28(100)(110), 2.54(71)(103), 1.71(72)(213), and 1.37(39)(303,116). The strongest Raman bands are at 748, 643, and 417 cm–1. The space group is P42/mnm and the cell dimensions are a 4.622–4.630 Å, c 9.077–9.087 Å, and V = 193.94–194.80 Å3 (Z = 2).
Raza latina: immigration and decadence at the fin de siècle
Authors: Coletta Michela
Published: January 2020

This chapter explores the ways in which the incorporation of the notion of ‘Latinity’ was affected by changing representations of European civilisation. Through an analysis of the discourses that were created in the popular press, the key argument here is that shifting perceptions of the European immigrant deeply affected the debate on the Latin race: rather than being taken at face value, the possible implications of belonging to the cultural and political sphere of the Latin countries of Europe were long debated. More specifically, the chapter explores the idea of national degeneration in relation to responses to and perceptions of ‘Latin’ immigration at the turn of the century. The significant waves of immigration from Southern Europe fuelled discussions over the impact of a notion such as that of Latinity, which was becoming identified with ideas of progressive degeneration in the contemporary sociological literature. The civilising power of the immigrant was increasingly ambivalent as he was identified with a decadent civilisation whose values seemed to clash with nineteenth-century liberal ideals. So, contrary to the widely shared assumption that ‘Latin America’ was a uniform notion, this discussion shows the complex debates about Latinity and Anglo-Saxonness in each of the three national contexts.
Against the poetics of decadence: Latin America and the aesthetics of regeneration
Authors: Coletta Michela
Published: January 2020

In the late nineteenth century, sociological studies often functioned as a channel between the psychological and criminological sciences and the traditional field of literature. I argue that Nordau’s work, which drew as much upon Italian criminology as it did upon Jean-Marie Guyau’s sociological theory of aesthetics, constituted a major path by which ideas of degeneration taken from the medical and criminological sciences came to be a fundamental tool of interpretation of modern Latin American culture. One of the main lines of argument in this chapter is that social theories on the degeneration of modern art were useful to vast sectors of the late-nineteenth-century intellectual elites to identify with the values of modern civilisation. By linking the development of literary modernismo to the wider engagement with questions about the features of modern civilisation, this discussion offers a new reading of modernismo as a movement that in its boom phase helped foster ideas of modernity as an essentially urban − and therefore transnational − phenomenon through notions of refinement, disease and degeneration. The second part of the chapter shows how Rodó’s seminal essay Ariel marked a turning point from decadent civilisation to the idea of Latin American culture by building on a moral conception of aesthetics.
Imaging the 44 au Kuiper Belt Analog Debris Ring around HD 141569A with GPI Polarimetry
Authors: Bruzzone Juan Sebastián , Metchev Stanimir , Duchêne Gaspard , Millar-Blanchaer Maxwell A. , Dong Ruobing , Esposito Thomas M. , Wang Jason J. , Graham James R. , Mazoyer Johan , Wolff Schuyler , Ammons S. Mark , Schneider Adam C. , Greenbaum Alexandra Z. , Matthews Brenda C. , Arriaga Pauline , Bailey Vanessa P. , Barman Travis , Bulger Joanna , Chilcote Jeffrey , Cotten Tara , Rosa Robert J. De , Doyon Rene , Fitzgerald Michael P. , Follette Katherine B. , Gerard Benjamin L. , Goodsell Stephen J. , Hibon Pascale , Hom Justin , Hung Li-Wei , Ingraham Patrick , Kalas Paul , Konopacky Quinn , Larkin James E. , Macintosh Bruce , Maire Jérôme , Marchis Franck , Marois Christian , Morzinski Katie M. , Nielsen Eric L. , Oppenheimer Rebecca , Palmer David , Patel Rahul , Patience Jennifer , Perrin Marshall , Poyneer Lisa , Pueyo Laurent , Rajan Abhijith , Rameau Julien , Rantakyrö Fredrik T. , Savransky Dmitry , Sivaramakrishnan Anand , Song Inseok , Soummer Remi , Thomas Sandrine , Wallace J. Kent , Ward-Duong Kimberly , Wiktorowicz Sloane
Published: January 2020

We present the first polarimetric detection of the inner disk component around the pre-main-sequence B9.5 star HD 141569A. Gemini Planet Imager H-band (1.65 μm) polarimetric differential imaging reveals the highest signal-to-noise ratio detection of this ring yet attained and traces structure inward to 0.″25 (28 au at a distance of 111 pc). The radial polarized intensity image shows the east side of the disk, peaking in intensity at 0.″40 (44 au) and extending out to 0.″9 (100 au). There is a spiral arm–like enhancement to the south, reminiscent of the known spiral structures on the outer rings of the disk. The location of the spiral arm is coincident with 12CO J = 3–2 emission detected by ALMA and hints at a dynamically active inner circumstellar region. Our observations also show a portion of the middle dusty ring at ∼220 au known from previous observations of this system. We fit the polarized H-band emission with a continuum radiative transfer Mie model. Our best-fit model favors an optically thin disk with a minimum dust grain size close to the blowout size for this system, evidence of ongoing dust production in the inner reaches of the disk. The thermal emission from this model accounts for virtually all of the far-infrared and millimeter flux from the entire HD 141569A disk, in agreement with the lack of ALMA continuum and CO emission beyond ∼100 au. A remaining 8–30 μm thermal excess a factor of ∼2 above our model argues for an as-yet-unresolved warm innermost 5–15 au component of the disk.
Magnetic Inflation and Stellar Mass. V. Intensification and Saturation of M-dwarf Absorption Lines with Rossby Number
Authors: Muirhead Philip S. , Veyette Mark J. , Newton Elisabeth R. , Theissen Christopher A. , Mann Andrew W.
Published: January 2020

In young Sun-like stars and field M-dwarf stars, chromospheric and coronal magnetic activity indicators such as Hα, X-ray, and radio emission are known to saturate with low Rossby number (Ro ≲ 0.1), defined as the ratio of rotation period to convective turnover time. The mechanism for the saturation is unclear. In this paper, we use photospheric Ti i and Ca i absorption lines in the Y band to investigate magnetic field strength in M dwarfs for Rossby numbers between 0.01 and 1.0. The equivalent widths of the lines are magnetically enhanced by photospheric spots, a global field, or a combination of the two. The equivalent widths behave qualitatively similar to the chromospheric and coronal indicators: we see increasing equivalent widths (increasing absorption) with decreasing Ro and saturation of the equivalent widths for Ro ≲ 0.1. The majority of M dwarfs in this study are fully convective. The results add to mounting evidence that the magnetic saturation mechanism occurs at or beneath the stellar photosphere.
Prioritized Agenda for Mental Health Research in Pediatric Rheumatology from the Childhood Arthritis and Rheumatology Research Alliance Mental Health Workgroup
Authors: Rubinstein Tamar B. , Ogbu Ekemini A. , Rodriguez Martha , Waqar Lindsay , Woo Jennifer M.P. , Davis Alaina M. , Lapin William Blaine , Ng Lawrence , Treemarcki Erin , von Scheven Emily , Knight Andrea M.
Published: January 2020

Objective

Mental health problems are prevalent in youth with rheumatologic disease. Gaps in knowledge exist regarding their effect, as well as strategies for detection and effective treatment. To address these gaps, the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Mental Health Workgroup developed and prioritized an agenda of research topics.

Methods

We systematically reviewed the literature and identified 5 major research domains in further need of study: (A) mental health burden and relationship to pediatric rheumatologic disease, (B) effect of mental health disorders on outcomes, (C) mental health awareness and education, (D) mental health screening, and (E) mental health treatment. Research topics within these areas were developed by workgroup leaders and refined by the workgroup. Members were surveyed to prioritize the topics by importance, feasibility of study, and actionability.

Results

Fifty-nine members (57%) completed the survey. Among the proposed research topics, 31/33 were rated as highly important and 4/33 were rated highly for importance, feasibility, and actionability. Topics rated most important related to (A) mental health burden and relationship to rheumatologic disease, and (B) the effect of mental health on outcomes. Topics rated most feasible and actionable were related to (D) mental health screening.

Conclusion

Addressing gaps in knowledge regarding mental health in youth with rheumatologic disease is essential for improving care. We have identified high priority research topics regarding mental health of pediatric rheumatology patients in need of further investigation that are feasible to study and believed to lead to actionable results in patient care.
Bidirectional Relationship Between Primary Sjögren Syndrome and Non-Hodgkin Lymphoma: A Nationwide Taiwanese Population-based Study
Authors: Wang Li-Hui , Wang Wei-Ming , Lin Chun-Yu , Lin Sheng-Hsiang , Shieh Chi-Chang
Published: January 2020

Objective.

Bidirectional relationships between some autoimmune diseases and non-Hodgkin lymphoma (NHL) may exist. We conducted this nationwide population-based study in Taiwan to investigate whether there is a bidirectional relationship between primary Sjögren syndrome (pSS) and NHL.

Methods.

Using the National Health Insurance Research Database of Taiwan, we identified 15,636 patients with new-onset pSS without previous cancer and 25,074 patients with new-onset NHL without previous pSS as 2 non-overlapping cohorts from 1998 to 2012, and followed them until 2013. Standardized incidence ratios (SIR) for NHL in the patients with pSS and SIR for pSS in the patients with NHL were compared with the general population.

Results.

Among the 15,636 patients with pSS, 741 developed cancers, including 51 with NHL. The highest SIR of specific cancer risk in patients with pSS was that for NHL (SIR 4.6, 95% CI 3.4–6.0). Among the 25,074 patients with NHL, 49 developed pSS; the SIR was also increased (SIR 3.2, 95% CI 2.4–4.2). The risk was highest within 1 year after the diagnosis of each disease.

Conclusion.

This nationwide population-based study is the first to report a bidirectional relationship between pSS and NHL. Our findings suggest being alert for patients with pSS or NHL who have early signs of the other disease in clinical care. The underlying mechanisms of the bidirectional relationship merit further investigation.
Management of Borderline Personality Disorder
Authors: Czelusta Kim-Lan , Idicula Sindhu , Laney Elizabeth , Nazir Saad , Udoetuk Sade
Published: January 2020

The management of borderline personality disorder (BPD) can be difficult, and specialized psychotherapy remains the core component of treatment with the most robust evidence. Dialectical-behavioral therapy and mentalization-based therapy are the most studied and commonly used among the specialized psychotherapy treatment options. Pharmacotherapy has more limited evidence and should be used primarily to address specific symptom alleviation. Inpatient hospitalization should be used cautiously to minimize unintended, unproductive consequences. Day hospital or intensive outpatient programs are good alternatives between hospitalization and routine outpatient visits for many patients. Because the rate of nonsuicidal self-injury is high among people with BPD, safety assessments by clinicians are an ongoing part of treatment and often involve family and loved ones.

[
Psychiatr Ann
. 2020;50(1):24–28.]
Student Interpersonal Connection in Nursing Education: A Concept Analysis
Authors: Cornine Amanda E.
Published: January 2020

Background:

A sense of connection is central to nursing education and is associated with positive student outcomes. The aim of this concept analysis was to clarify the meaning of student interpersonal connection in nursing education.

Method:

Walker's and Avant's method of concept analysis was used. Google
TM
and ancestry searches identified uses of “connection” across disciplines. PubMed
®
and ancestry searches identified 24 relevant manuscripts from nursing education, and two concept analyses related to connection in general nursing contexts; these informed the core of the analysis.

Results:

Across disciplines, connection had varied uses; these informed the analysis. Student interpersonal connection in nursing education was tentatively defined as a nursing student's evolving perception of mutually valuing, feeling close to, feeling comfortable with, and being cared about by others he or she encounters in education.

Conclusion:

The evolving nature and importance of this concept support the need for further scholarship in this area.

[
J Nurs Educ
. 2020;59(1):15–21.]
Design and Implementation of a Computer Aided Intelligent Examination System
Authors: Alghamdi Abdulrahman Abdullah , Alanezi Mohammed Ateeq , Khan Faizal
Published: January 2020

Developing a computer based system for examinations are the substitute for the current examination system based on paper. In recent days, the e-learning has become more popular because of its adaptability, integrity and user friendliness. In terms of the paper based examinations, major challenge is the proctoring techniques used. In this paper, a novel method to avoid the presence of a proctor throughout the examination is proposed by an intelligent based examination system. This method is proposed to improve the e-learning using intelligent question bank and examination system. The system is designed with different complexity levels among the questions and also it acts as a tool to assessing the understanding of student from the teaching materials. This system can be timesaving and more efficient with an adequate level of security. The proposed methodology can be classified in to two main phases such as the design of question bank along with its database, design of the Artificial Intelligence (AI) based system for examination and its evaluation in order to improve the e-learning. Future works in this system can be the addition of theory-based questions and the integration of biometric based systems for enhancing the level of security.
The Effect of Non-Monetary Rewards on Employee Performance in Massive Open Online Courses
Authors: Sureephong Pradorn , Dahlan Winai , Chernbumroong Suepphong , Tongpaeng Yootthapong
Published: January 2020

A challenge for organizations is to increase employee performance and motivation, since the most crucial asset of every organization is manpower. Many companies and factories have started implementing online training platforms under the concept of “Massive Open Online Courses (MOOCs)” in their workplace to foster employee performance. Previously, the mobile application called “HSC MOOC” which is provided by the Halal Science Center, Chulalongkorn Univer-sity, Thailand functioned as a solution that encourages self-learning on online platforms at companies in Thailand. However, the main barrier or risk that occurs when implementing an online platform is the user’s motivation, since the dropout rate is considered as a serious issue regarding MOOCs. Thus, incentive and re-ward were added to online training programs which aimed to motivate employees. Many types of rewards were provided for employees who had met their own company’s expectations. Recently, psychology research papers have illustrated that non-monetary rewards seem to provide greater results on the side of employee’s motivation. However, not all types of non-monetary rewards provide positive impact on employee’s motivation. Therefore, the aim of this research is to present the effect of different non-monetary rewards on employee performance.

Ninety volunteer employees from a food manufacturing company in Chiang Mai, Thailand participated in this research. The experiment was divided into two sections. The first section aimed to measure the motivation of employees which based on different non-monetary rewards. The questionnaire for measuring Valence, Instrumentality, and Expectancy variables (VIE theory) was deployed to test employee motivation in 3 different groups; “Tangible Non-Monetary Re-wards”, “Social Non-Monetary Rewards” and “Job Related Non-Monetary Re-wards”. The test consisted of 10 items using a 5-point Likert scale. The second experiment aimed to reveal which type of non-monetary reward is the most suitable for motivating employees in participating and completing the course in MOOCs. Participants in different groups were assigned to learn via MOOCs on their mobile device within a period of 30 days. Different types of non-monetary rewards were provided only for participants who had completed certain conditions in MOOCs. The overall results showed that the group of tangible non-monetary rewards reached the significant highest score on the VIE questionnaire and over 60% of participants exposed to tangible non-monetary rewards completed the course’s conditions in MOOCs.
River Otter Status, Management, and Distribution in the United States: Evidence of Large-Scale Population Increase and Range Expansion
Authors: Roberts Nathan M. , Lovallo Matthew J. , Crimmins Shawn M.
Published: January 2020

River otter Lontra canadensis populations in the United States have expanded during the past 50 y as a result of improvements in habitat quality and effective management programs implemented by state and federal agencies and native tribes. Periodic assessments of river otter status, population trends, and geographic distribution are needed to detect changes in populations, assess management approaches, and to identify and prioritize conservation efforts. We surveyed state wildlife agency experts to assess the current population and regulatory status of river otters in their jurisdictions. River otters were legally harvested in 40 states as of 2016. Twenty-two states reported increasing populations while 25 reported stable populations. Most states used multiple methods to monitor river otter populations including harvest-based surveys, presence–absence surveys, and empirically derived population model predictions; harvest-based surveys were the most commonly used monitoring approach. As populations have expanded, river otter reintroduction efforts have become less frequent; two additional states had conducted reintroductions since 1998 and only one state had conducted a reintroduction since 2010. We estimated that river otter distribution increased by 10.2% in the continental United States and by 13.7% in the contiguous United States during an 18-y period. Although populations may continue to increase numerically, river otters may be approaching their potential maximum geographic distribution in the United States.
De la poupée mécanique à la machine reproductrice
Authors: Gutiérrez Beatriz Gómez
Published: January 2020

L’étude de l’œuvre d’Espinosa devient un outil inestimable pour le déchiffrage de certains paradigmes féminins de son époque. Quatre archétypes de femme, prédominants dans la littérature fin de siècle et celle des premières décennies du xxe siècle, séduiront l’auteur : La « femme fatale » du « modernismo » espagnol ; la « poupée surréaliste », dénomination choisie d’après une longue lignée de poupées artistiques : Kokoshka en 1918, Lotte Pritzel en 1919, Hans Bellmer en 1933 ; la « Femme futuriste », inspirée des archétypes féminins des années vingt, générés par des films comme Metropolis de Fritz Lang et, finalement, la femme phalangiste, semblable à celles du Futurisme italien et modèle de référence pour les membres de la section féminine – branche de la phalange espagnole créée en 1934.
Youth as actors and mediators in Tuareg theater and social life (Urban Niger and Mali)
Authors: Rasmussen Susan
Published: January 2020

Valuable studies of youth in anthropology consider local concepts of what it means to be “youth” in relation to changing intergenerational relationships. However, there is still the need to convey more nuanced concepts of age as relational, dynamic, and debated, rather than categorical or consensual. In northern Niger and Mali, West Africa, droughts, settling of some nomads in towns, return of labor migrants, marginal employment, and recurrent armed conflicts have prompted different generations of Tuareg (also known as Kel Tamajaq, or “people who speak Tamajaq”)—traditionally semi-nomadic, stratified, and predominantly Muslim—to reflect on dangers and opportunities for the different generations in these upheavals. In particular, there is widespread preoccupation with what many refer to as the experience of youth. This essay analyzes enactments and reformulations of the meanings of youth and intergenerational relationships in popular play plots in Agadez, Niger, and Kidal, Mali, explores what it means to be culturally defined, among Tuareg, as “youth(s),” and examines the connections between acting and its performing specialists, many of whom are culturally defined as “youthful” in emerging new plays considered by many local audiences as “modern.” The goal is to contribute to anthropological studies of how youth and age more generally are socially constructed, as revealed through popular culture.
The new frontier of age limits, or youthoods among the Meru (Kenya)
Authors: Peatrik Anne-Marie
Published: January 2020

In the much-changed context of the present-day lives of the Tigania-Igembe Meru (agro-herders living north-east of Mount Kenya who once had a political generation-set system), the article examines the differentiation of categories of youth and the modalities of age limits. Contrary to common perceptions, the transition to the next grade was neither automatic nor devoid of strong tensions, and youth was something other than that intermediate phase between childhood and adulthood, as the society and culture under consideration testifies to, through narratives, rules and a special vocabulary for the purpose. Nowadays, under the effect of widespread schooling, new youth classifications have appeared, overlapping or replacing old ones. The still-significant key question of initiations has shifted, causing a major de-synchronisation between the paths of girls and boys. The article offers a contribution to an anthropology of youth, viewed here from the perspective of its limits, and aims to put the rite of passage back in its rightful place within processes that concern both complex trajectories and the crucial junctions of existence.
Potential User Groups of Mobility as a Service in Finland
Authors: Liljamo Timo , Liimatainen Heikki , Pöllänen Markus , Utriainen Roni , Viri Riku
Published: January 2020

With a mobility as a service (MaaS) offering, the transport needs of the end customer may be fulfilled in a way, which may challenge the car dominant mobility practices of today. Up to now, there has been few studies focusing on the interest of end users towards MaaS. This chapter presents results from a survey in Finland (N=1,176) and focuses on the interest towards MaaS services among 18-64 year olds and especially the potential of MaaS in different user groups. The authors found that particularly the respondents who currently use public transport, the respondents living in households without a car, the respondents aged 25-34, and the respondents with higher education were more interested to adopt MaaS services. They also found that people living in urban areas and in apartment houses indicated a higher interest towards MaaS. The same groups had also more often no need or will for car ownership if a competitive MaaS service would be available. Continuing urbanisation offers increasing potential for MaaS as there are many mobility services, which can be bundled into a MaaS offerings in cities.
Mobility on Demand
Authors: Shaheen Susan A. , Cohen Adam , Farrar Emily
Published: January 2020

For as long as there have been cities, there have been suburbs. Shared mobility—the shared use of a vehicle, bicycle, or other travel mode—is an innovative transportation strategy that enables users to have short-term access to a transportation mode on an as-needed basis. Shared mobility can enhance access and reduce social exclusion in lower-density environments and provide transportation options to carless and public transit-dependent households, particularly in areas without high-quality, fixed-route public transportation service. This chapter discusses the design and evolution of suburbs and how this impacts the transportation network. Additionally, this chapter reviews suburban applications of shared mobility services and provides a case study of shared mobility service deployments in Northern Virginia. The chapter concludes with key takeaways and a discussion of the potential future of shared mobility services in lower-density built environments.
The Future of Mobility as a Service (MaaS)
Authors: Baltazar Sara , Amaral António , Barreto Luís , Silva João Pedro , Gonçalves Luísa
Published: January 2020

The environmental concerns together with social inclusion issues and the need to promote economic equity in the society have profound implications regarding the sustainable mobility concept. This allied to a technological (r)evolution leads to the path of the internet of mobility (IoM). On the other hand, we are witnessing the prosperity of mobility associated with services, mobility as a service (MaaS), which also aims at the integration of different transport modes. Linking together IoM and MaaS, the internet of mobility as a service (IoMaaS) concept is introduced, which can learn from the end user experiences and behaviors, enabling the reduction of ease of use and sustainable mobility, while supporting a much-needed cultural shift regarding mobility habits.
The Value of the Mature Worker
Authors: Myers Jonna
Published: January 2020

The purpose of this chapter is to explore the literature that addresses the knowledge management (KM) of mature workers, namely Baby Boomers, in the workforce and how that KM helps employees and organizations achieve career goals. This chapter considers the time-sensitive nature of organizational implementation of effective KM practices as they pertain to this population. Additionally, two key themes are drawn out and discussed: frequent and active integration of KM and community as the vehicle for KM. This chapters concludes with suggestions for future research to addresses existing gaps in the literature.
Neuroscientific Approaches for Maintaining, Balancing, and Developing Mature Workers
Authors: Lim Doo Hun , Park Sunyoung , Park Cho Hyun , Jang Chang Sung
Published: January 2020

As the aging population is rapidly increasing worldwide, keeping older workers to address the skilled labor shortage has been an important economic issue. This study pursues the current status of the older workforce in the U.S., identifies organizational support systems for mature workers, and proposes neuroscientific approaches and methods to maintain and develop effective mature workers through an integrative review of recent research findings in neuroscience and brain-based learning and development.
Supporting Workforce Wisdom in a Global Economy
Authors: Allen Jeff M. , Bracey Pamela Scott , Aguilar Mariya Gavrilova , Zimmerman Tara D.
Published: January 2020

An aging workforce brings unique challenges and opportunities, requiring an understanding of how different age groups approach the workplace and employ thoughtful strategies to bridge generation gaps. It is crucial to identify wisdom held by experienced workers and develop strategies for passing knowledge on to less experienced employees. Training mature workers for the 21st century workplace is important; however, helping all employees to unlearn outdated processes or beliefs is equally vital to ensure growth and innovation. Organizations need to foster a climate of acceptance and appreciation for all workers and their contributions regardless of age. Workplace policies and procedures should be reviewed and updated to ensure no bias against mature workers is present. Community and public resources can be accessed to train and support mature workers as well. Recognizing the element of wisdom in the workforce and learning how to leverage that wisdom is key to success in the knowledge economy.
Nickel Cobaltite Nanoneedle/Porous Graphene Nanosheets Network Nanocomposite Electrodes with Ultra-High Specific Capacitance for Energy Storage Applications
Authors: Yang Chih Chieh , Lee Chia-Hong , Tseng Tseung Yuen
Published: January 2020

Nickel cobaltite has become a popular energy storage material in recent years for high performance energy storage devices because of its low lost, high electronic conductivity, high electrochemical activity and environmental benignity. Nickel cobaltite (NCO)/porous graphene nanosheets network (PG) composites were synthesized via the two-steps hydrothermal method to enhance electrochemical properties in this study. The NCO/PG composite electrode demonstrated high specific capacitance of 3965 F g-1 at the current density of 1 A g-1 compared with the value of NCO that capacitance is 644 F g-1, and it maintained the 72% of the original capacitance after 3,000 charge-discharge cycles. It showed the maximum energy density of 46.3 Wh kg-1 and maximum power density of 1450 W kg-1. The NCO/GO composite has high potential as a psudocapacitance material for energy storage devices.
Literature Review of Gallium: Conductive Ink Alternative?
Authors: Aguilar-Banegas Alejandro David , Reyes-Cruz Fredy David , Vargas-Pineda Jesús Antonio , Ortega-Jimenez Cesar Humberto
Published: January 2020

Although there are currently different applications for gallium in microelectronics, literature is sparse about its applications in the area of conductive inks. The important characteristics to consider from the ink are viscosity, corrosion and surface tension. The importance of viscosity is a critical parameter in the printing ink mixture, which requires a metal to fulfill the function of conductor, such as gold, copper, and silver. Gallium as a conductor replacement is proposed due to the high cost of such metals currently used. The valence electrons are discussed in this paper due to the direct relation that has with metal conductivity, to provide a justified analysis about gallium application in conductive ink. The application of gallium could mean a significant change in conductive ink elaboration process. Thus, the aim of this research is to analyze the application of gallium as conductive ink, which is done by a literature review on gallium as a semi-conductor because of his valence electrons. Results about gallium as a potential conductive ink show that there is evidence that gallium shares similar properties as the current of materials conductive inks being adopted. This first literature review has some implications on the potential use of gallium as a conductive ink, requiring further experimental research to better test for conducting efficiency.
Appraisal on Different Sustainable Road Stabilization Techniques for Different Road Condition and Materials
Authors: Masirin Mohd Idrus Mohd , Hamid Halina Abdul , Rahman Raha Abdul , Wagiman Abdullah , Mustapa Mohammad Sukri , Hamid Norashikin Abdul
Published: January 2020

Road condition in term of road surface condition depends on the subgrade soil strength. Therefore, a weak subgrade condition requires improvements in stabilization. Soil stabilization is the alteration of one or more geotechnical properties to create an improved soil material possessing the desired engineering properties. The main purpose of the soil stabilization is to increase the shear strength of an existing ground condition to enhance its load-bearing capacity, achieve a desired improved permeability and enhance the durability of the soil to resistance to the process of weathering, and traffic usage among others. Three method in soil stabilization considered in this study are chemical admixture, mechanical and geosynthetics methods. The difference in soil stabilization methods depends on the different road surface conditions. Road condition with weakness subgrade is more appropriate and economical in used stabilization chemical method. In this paper, discussing the road condition requires the ground improvement through soil stabilization
Numerical and Experimental Analysis on Runner and Gate Positioning for Magnesium Alloy Die-Casted Test Piece
Authors: Ibrahim Mohd Danial , Tan Ger Lian , Roslan Lidyana , Kashiwabara Yuki , Jendia Jasmine , Sunami Yuta
Published: January 2020

High Pressure Die Casting (HPDC) is a manufacturing process producing complex and precise products by injecting molten material into mold cavity at top speed and pressure. The quality of product is highly related with mold cavity design. Casting defects due to inappropriate mold design will affect mechanical properties, surface quality and product life cycle. Optimization of runner system is essential to manufacture complex and precision product design with minimal defects. The combination of runner and gating system is investigated in this paper. This paper investigated the effect of runner and gating optimization in reducing the gas porosity inside casting by evaluating the fluid and thermal distribution behavior in experimental and Computational Fluid Dynamic (CFD). The gas porosity generated in the molten magnesium alloy is due to the turbulent flow and the inconsistency of the fluid flow to push the gas bubble away from the main casting. This paper includes an X-ray of a sample product that shows correlation between gas porosity and CFD results. Results show that localize porosity gathered at the bottom of the main casting. Based on localized porosity position, runner and gating system is modified and numerical simulation is carried out for analysis. An inspection instrument step-type test piece is taken as an investigation sample to illustrate the technique of design modifications and improvements. Process parameters considered in this paper are injection speed, injection pressure, melt temperature and mold temperature. This paper proposed new runner designs that can generate balanced velocity and temperature distribution inside mold cavity, improving the solidification process aimed for reducing casting defects.
Friction and Wear Properties of Oriented Fe2B with Different Cr Additions under Water-Lubricated Condition
Authors: Li Ke Min , Huang Zhi Fu , Qin Chao Feng , Ma Han Wen , Zhang Wei Yao
Published: January 2020

In the present study, pure oriented Fe2B with Cr addition were prepared. The friction and wear properties of oriented Fe2B with different Cr additions were investigated by optical microscopy, scanning electron microscopy and 3D laser scanning microscope. Results indicate that fracture toughness of the cross section is higher than that of the longitudinal section invariably with the same Cr addition. Both cross and longitudinal sections, the fracture toughness value increases from 1Cr to 2Cr and decreases from 2Cr to 3Cr. Friction coefficient and wear loss of cross section are lower than those of the longitudinal section under the same Cr addition. For the identical grain orientation, the friction coefficient and wear loss rise from 1Cr to 2Cr and then drop from 2Cr to 3Cr. 2Cr-C sample has the lowest friction coefficient and wear loss. On the contrary, the friction coefficient and wear loss of 3Cr-L sample are the highest. Wear mechanisms of Fe2B alloy are brittle rupture and abrasive wear.
Development Carbonated Hydroxyapatite Powders from Oyster Shells (Crassostrea gigas) by Carbonate Content Variations
Authors: Almukarramah Almukarramah , Yusuf Yusril
Published: January 2020

Carbonated hydroxyapatite (CHAp) is an inorganic mineral that more closely resembles the main component of composing human hard tissue in 2-8 wt% carbonate content. CHAp powders have been synthesized from oyster shells using the precipitation method. Oyster shells are one type of shellfish from the bivalve class which is rich in calcium carbonate content. In this research, CaO from oyster shells obtained from the decomposition process of CaCO3 was used as a source of calcium and diammonium hydrogen phosphate and ammonium bicarbonate as well as a precursor of phosphate and carbonate, respectively. In addition, carbonate content variations were x = 0, 0.3, 0.8 and 1.2 which were characterized by fourier transform infrared spectroscopy (FTIR), X-ray diffractometer (XRD), and scanning electron microscope-energy dispersive X-Ray (SEM-EDX) to determine the functional groups, crystallographic properties, morphology and Ca/P molar ratio, respectively. Carbonate ion substitution in the hydroxyapatite crystal structure is known to decrease crystallinity and crystallite size. The theory is in accordance with the results obtained in this study with the crystallite size is 74.322, 46.933, 37.727, and 31.499 nm for 0.95, 2.7, 5.7, and 9.35 wt.% carbonate content, respectively.
Strength and Bioactivity of Hydroxyapatite/White Portland Cement (HAp/WPC) under Simulated Body Fluid (SBF) Solution
Authors: Taptimdee Weerapol , Chindaprasirt Prinya , Otsuka Yuichi , Mutoh Yoshiharu , Laonapakul Teerawat
Published: January 2020

In this study, the effects of curing white Portland cement (WPC) and hydroxyapatite mixed with white Portland cement (HAp/WPC) pastes in water and the in vitro biological environment on the compressive strength and bone-like apatite formation were examined. The compressive strength of both WPC and HAp/WPC pastes increased with longer curing periods in water. The compressive strength of WPC and HAp/WPC pastes was 51.88 and 25.67 MPa, respectively, after curing in water for 28 days. The compressive strength of both samples continuously increased during in vitro testing in a simulated body fluid (SBF). After 4 weeks of immersion in a SBF, the strengths of cured WPC and HAp/WPC samples were 59.01 and 28.06 MPa, respectively. It is due to continued hydration of WPC. The addition of HAp to WPC decreased the compressive strength of the sample. Alternatively, it enhanced bone-like apatite formation on the surface of the samples.
Simulation Study on Erosion Wear Rule of Aluminium Brass Throttling Ring of Artillery Based on Finite Element Method
Authors: Cui Kai Bo , Sun Hai Tao , Jiang You Cai , Huang Yun Peng
Published: January 2020

Erosion wear is the main failure cause of the throttling ring in artillery, which will lead to the reduction of the reliability of the throttling ring, which also will lead to degradation of the performance of recoil brake. According to the working conditions and environmental characteristics of the throttling ring, the finite element model of the erosion wear of the throttling ring is established, and the erosion wear simulation test is carried out to study the erosion wear rules of the throttling ring under different influencing factors, so as to evaluate the reliability of the throttling ring reasonably. It is of great theoretical and practical value to obtain the reliability information of the throttling ring under different working conditions and to ensure the normal performance of the recoil brake.
MHC Class II (DRB) Promoter Polymorphism and Its Role in Parasite Control among Malaria Patients
Authors: Sar Pranati , Agarwal Aarushi , Vadodariya Devansi Hansrajbhai , Kariya Hiral , Khuman Jaydipbhai , Dalai Sarat
Published: January 2020

MHC class II (MHCII) molecules are cell surface glycoproteins that play an important role to develop adaptive immune responses. MHCII-disease association is not restricted to structural variation alone but also may extend to genetic variations, which may modulate gene expression. The observed variations in class II gene expression make it possible that the association of MHCII polymorphism with diseases may relate to the level of gene expression in addition to the restriction of response to Ag. Understanding the extent of, and the mechanisms underlying, transcription factor DNA binding variation is therefore key to elucidate the molecular determinants of complex phenotypes. In this study, we investigated whether single nucleotide polymorphisms in MHCII-DRB regulatory gene may be associated with clinical outcomes of malaria in Plasmodium-infected individuals. To this end, we conducted a case-control study to compare patients who had mild malaria with those patients who had asymptomatic Plasmodium infection. It demonstrates that GTAT haplotype exerts an increased DRB transcriptional activity, resulting in higher DRB expression and subsequently perturbed Ag presentation and T cell activation, higher TLR-mediated innate immune gene expression, and Ag clearance, so low parasitemia in comparison with haplotypes other than GTAT (GTAC, GGGT). Hence, we hypothesized that DRB gene promoter polymorphism might lead to altered DRB gene expression, which could possibly affect the TLR-triggered innate immune responses in malaria patients. These genetic findings may contribute to the understanding of the pathogenesis of malaria and will facilitate the rational vaccine design for malaria.