bluuebunny/crossref_metadata_2025 huggingface dataset:
Monitoring Mentions of COVID-19 Vaccine Side Effects from Japanese and Indonesian Twitter: Infodemiological Study (Preprint)
Authors: Ferawati Kiki , Liew Kongmeng , Aramaki Eiji , Wakamiya Shoko
Published: May 2022

BACKGROUND

2021 was marked by vaccinations against COVID-19, and spurred a wider discussion from the general population, with some in favor and some against it. Twitter, a popular social media platform, was instrumental in providing information about the COVID-19 vaccine, and has been effective in observing public reactions. We focus on tweets from Japan and Indonesia, two countries with a large Twitter-using population, where concerns about side effects were consistently stated as a strong reason for vaccine hesitancy.

OBJECTIVE

This study aimed to investigate the reporting of vaccine side effects on Twitter, and to compare the side effects from two mRNA vaccines types, Pfizer and Moderna, in Japan and Indonesia.

METHODS

A final data were obtained from Twitter from January 1, 2021, to December 31, 2021, and consisted of N = 433,024 tweets (Japan) and N = 16,282 tweets (Indonesia). Logistic regression models were used to compare the side effects for Pfizer and Moderna for each country. We also compared these results to side effect ratios in public reports (press releases) released by Pfizer and Moderna after clinical trials.

RESULTS

There were some differences in the ratio between the public reports and tweets. Specifically, fever was mentioned much more frequently in tweets than what would be expected based on the public reports. For logistic regression results, all side effects were significant for Japanese tweets (P value<.001), and all but two were significant in Indonesian tweets (P value <.01). The odds ratio suggested that the terms for side effects were more frequent in Moderna than Pfizer tweets.

CONCLUSIONS

Fever was the most prevalent side effects mentioned in Japanese and Indonesian tweets. Compared to Pfizer, side effects were observed more frequently in Moderna tweets. We note possible applications for COVID-19 vaccine side effect surveillance on Twitter, but caution that there is a need for additional resources to establish validity.
Disputas de poder en la vitivinicultura chilena: Valles del Biobío bajo las sombras del desarrollo
Authors: Erices Castro José , Escalona Ulloa Miguel
Published: May 2022

El exponencial desarrollo vitivinícola chileno logrado en los últimos años ha traído una serie de consecuencias negativas, afectando principalmente los valles del Itata y Biobío. Este artículo analiza las relaciones de poder de los agentes (Vinos de Chile, Coalición Nacional de Viñateros, instituciones públicas) implicados en el desarrollo vinícola de estas zonas, a través del análisis e interpretación de discursos y narrativas vinculadas al lenguaje. Uno de los hallazgos más relevantes es la relación de “exclusión inclusiva”, manifestándose en la condición de dominación y dependencia de los pequeños y medianos productores por parte la gran industria.
Polar Question Particle Ke in Bagri
Authors: Syopat Syopat
Published: May 2022

The aim of this paper is to provide an account for the unique properties of the polar question particle (PQP) Ke in Bagri. Being a dialect of Hindi, this PQP is similar to its Hindi counterpart Kyaa in many aspects: optional occurrence in polar (Yes/No) questions, selectiveness in embedded polar questions, information structural effects. However, unlike Hindi, it is restricted to only polar Y/N questions and cannot occur in a clause-initial position, similar to PQP Ki in Bangla and Odia. Since Ke in Bagri meets all the necessary conditions explicitly laid out in Bhatt and Dayal (2018), we argue that this lexical item qualifies as a PQP residing in ForceP and has a presuppositional requirement that its complement must be a singleton-set question. Moreover, Ke is enclitic in nature requiring some phonological element to be present to its left.
Review of Challenges and Solutions in Web Based Vehicle Breakdown Assistance System
Authors: Sharma Ritu , . Deepak , Singh Divyansh , Sharma Harsh , Nishad Prashant
Published: May 2022

Abstract: At this point individuals prefer own vehicle for travelling to stay off from trouble. But just in case of any disruption during travelling, it’s very strenuous to go looking mechanic in anonymous location. Therefore, to work out this trouble we come up with an online based assistance system. During this system car and bike mechanics are ready to record yourself with their assistance information. The website will trace client’s live location automatically when he’s online. Based on client’s live location, system will develop a listing of the closest mechanics. When the client look for the mechanics then the list are going to be visible, so if user’s vehicle breakdown, then he is going to be ready to view the closest mechanics. This website is employed to seek out the closest mechanics while we instantaneously stuck on the rural area because of vehicle breakdown. It’s an adequate solution for the client who hunt for help within the rural areas. Here, only verified mechanics are entered in this website. As well, mechanics are examined by the admin for not asking unspecified top off charge against the client. This probably observed through the tech team over the client response supported their assistance. The certified client can attain this website. This website will assist to chop down client time to detect an accurate mechanic. This website will acknowledge client to pay the bill for a vehicle fixing in an appropriate charge. Keywords: Live Location, Client, Mechanic, Vehicle Disruption/Breakdown, Issue.
“Bus Pass System”
Authors: Shete Raviraj Vardhaman , Patil Sangharsh Sunil , Pujari Sarang Krushna , Chougale Pravin Raju , Kodulkar Prof. R. J.
Published: May 2022

Abstract: Online Student Bus Pass Generation system is a web application for students to get bus passes through online. Before this application implementation the manual process is used to do the process of issuing the Bus pass to the students. This Manual process requires man power and more time consuming. The system is intended to develop an application to perform functions like accessing basic information for authentication and provide passes without the need to wait in any queue. Online bus pass generation system is for students to get pass through online. Before this application implementation the manual process is used to do the process of issuing the bus pass to the students. To avoid such difficulties, we implemented this system.
"The Greatest Freedom Show on Earth": Emancipation Celebrations in Windsor, Ontario, 1957-1968
Authors: Campbell Victoria
Published: May 2022

Between the mid-1930s and the mid-1960s, Emancipation Celebrations in Windsor, Ontario were referred to in the city as "The Greatest Freedom Show on Earth." This article explores debates between Emancipation organizers and Windsor city officials between 1957 and 1968 to demonstrate that distance from the era of slavery did not eradicate the contested nature of Emancipation celebrations as sites of political and social agitation, but resulted in new arguments about the position of African Canadians in the community. As Emancipation Day became increasingly associated with the Freedom Movement across the border, Windsor City Council and the Windsor Police Department began to push against the celebrations, eventually culminating to the celebration's cancellations in 1967 and 1968 in reaction to the Detroit Riot. The responses of Emancipation Day organizers and their supporters to this treatment will demonstrate how African Canadians in Windsor attempted to uncover city officials' claims to race neutrality and attempted to define themselves rather than be defined by others.
"Not of the Nation": Canadian History Textbooks and the Impossibility of an African-Canadian Identity
Authors: Poole Carmen
Published: May 2022

The historical experience of blacks in Canada has continued to be one of partial remembrance and recognition set against a highly developed and dominant Anglo portrayal of Canadian history. This partiality has greatly limited the development of identity for Canadian blacks due to general non-recognition of them on the part of the white Canadian majority. Historiographically, the historical presence of blacks in Canada has been constructed as distinctly provisional. This study will illustrate the historical exclusion of black Canadians from the Canadian historical narrative by examining pre-Confederation Canadian black history as it appeared in thirty-two intermediate level (grades 7-10) textbooks authorized for use in Ontario between 1950 and 1985. These textbooks were evaluated based on their coverage of slavery in Canada, the Loyalist migration, the War of 1812, the Rebellions of 1837, and the Underground Railroad. These events are helpful in this assessment because they exist at the intersection of noteworthy events in Canadian history and significant moments in the history of black migration and black contribution to the nation. By uncovering these omissions, this study will also discuss the extent to which "black Canadian-ness" was constructed within these texts as a contradiction in terms. Informed by anti-racist pedagogy concerning the hegemonic effects of curricula on racial identity formation, it will focus on where such exclusions affected the process of identity formation of Canadian blacks and how it contributed to the alienation of black children's sense of belonging to the Canadian nation, curtailing the development of an identifiably black and Canadian identity for indigenous black.
Экспериментальное и численное исследование отклика на низкоскоростной удар сандвичконструкций с сердцевиной из полипропилена, армированной графеном
Authors:   Department of Mechanical Engineering, University of Tabriz, Тофиги M. Багери , Биглари Х. , Шокри M. M. ,   Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology
Published: May 2022

Ударное поведение сандвич-конструкций изучали экспериментальными и численными методами. Испытали сандвич-конструкции с алюминиевыми лицевыми слоями и сердцевиной из чистого полипропилена (ПП) и наполненнного 0,5% по массе графена (ПП/0,5% Г). Испытания на удар показали, что наноармированные конструкции выдерживают большее контактное усилие и имеют меньшую продолжительность контакта, чем конструкции с неармированной сердцевиной. Наноармированные конструкции имели меньшую площадь повреждения и глубину вмятины. Неармированные сандвич-конструкции поглощали больше энергии удара в силу большего количества произошедших в них повреждений. Для дальнейшего исследования ударного отклика сандвич-конструкций разработали и реализовали в программном обеспечении ABAQUS трехмерную конечно-элементную модель. Ударное поведение сердцевины и лицевых слоев алюминия, ПП и ПП/Г в зависимости от скорости деформации исследовали с помощью модели материала Джонсона–Кука. Результаты моделирования сравнили с экспериментальными и установили хорошее согласование между ними. Апробированную конечноэлементную модель использовали при оценке влияния геометрических и материальных параметров, в том числе толщины слоев алюминия и полипропилена, массового содержания наночастиц и механических свойств слоев алюминия, на ударную прочность сандвич-конструкций. Введение в ПП 0,5% по массе графена обеспечило максимальные характеристики при ударе, на которые существенно влияли предел текучести и модуль упругости алюминиевых слоев.
Reflexiones sobre la técnica: el mito de la Gorgona como la Medusa moderna
Authors: Cortés Alice Andrea , Saavedra Edwin Camilo
Published: May 2022

El propósito de este artículo fue mostrar cómo, a partir de las reflexiones de Heidegger sobre la técnica, y desde la psicología arquetipal de Hillman, se puede interpretar el mito de Medusa con el fenómeno de la técnica moderna, evidenciando que esta es un destino del acaecer, o, en términos heideggerianos, das Geschick, es decir, lo proyectado, lo destinado, que llega en el camino, pues, cuando el fenómeno de la técnica moderna se impone sobre la naturaleza, petrifica como Medusa, quita vida con su mirada, convirtiendo lo que mira en un objeto. Tanto la técnica, como Medusa, tienen el destino de petrificar lo natural y su entorno.  La razón instrumental, con el desarrollo de la técnica moderna, ha reflejado hasta nuestros días la imagen de esa Medusa que petrifica la naturaleza. Heidegger concibe el fenómeno de la técnica en su concepto Gestell (estructura de emplazamiento tecnológico), que se puede traducir en diferentes fases, como imponer, disponer y componer, crear y liberar de la técnica y las nuevas tecnologías, con las diferentes fases del mito de Medusa descrito por Ovidio Nasón en la Metamorfosis. Este estudio, en tanto, expondrá la correspondencia de cada una de ellas. Se concluye, entonces, cómo la técnica moderna, en cada una de las fases anteriormente mencionadas, se emplaza en la naturaleza yendo de la mano de la razón instrumental; a su vez, Heidegger y Hillman nos ofrecen una interpretación de la téchne griega y el mito de la Medusa en el acontecer tecnológico que estamos viviendo.
From the diffusion to the appropriation of cost accounting in a French university: Between institutional pressures and actors game
Authors: El Kaddouri Hamza
Published: May 2022

This article presents the results of research conducted on the diffusion and appropriation of cost accounting at a French university (Hatchuel & Weil, 1992). Following the reforms put in place after the adoption of the LRU (Liberties and Responsibilities of Universities — Law on Universities) in 2007, this university adopted the SIFAC (Système d’Information Financier Analytique et Comptable — Analytical and Accounting Financial Information System) management tool, whose objective was to deeply modify the accounting and budgetary practices and allow the implementation of a cost accounting system (DiMaggio & Powel, 1983). But concretely, nine years after the implementation of the SIFAC tool, we noticed that, if technically, the accounting and budgetary practices have improved, the adoption of this tool did not lead to the implementation of a real cost accounting system. The findings showed that this situation could be explained by three factors: factors related to the tool itself, factors related to the specificity of the host organization, and factors related to the priorities of the actors within this university
Intersectionality of social and philosophical frameworks with technology: could ethical AI restore equality of opportunities in academia?
Authors: Morimoto Juliano
Published: May 2022

Academia is far from a meritocratic distribution of opportunities. This
leads to inequalities, lack of diversity, and unfairness. The objective
of this conceptual paper is to propose an integrative framework to help
the academic community address the pervasive but persistent inequalities
of opportunities. The framework emerges from the intersections of
Bourdieu, Bronfenbrenner, and Rawls frameworks and propose the use of
ethical Artificial Intelligence (AI) to contextualise merit and generate
true equality of opportunities. More specifically, I argue that academia
has structures and doxa that may be inaccessible to individuals from
different social origins, and perpetuated by those privileged
individuals who achieve positions of power within academia.  The
privileged individuals inherit and are exposed to opportunities to
acquire capital from early life, resulting in the continuation of
status quo practices and alienation of minorities that do not
share – or do not have the ability to acquire – capital. I argue that
this process occurs from as a result of the social origins of the
individual and that Bronfenbrennian framework suggests that not only
disadvantaged individuals lack (inherited) capital, but also lack the
ability and opportunities to acquire capital relative to privileged
counterparts. I argue that the only way to mitigate this inequitable
system is to retrieve the Rawlsian original position of ignorance (veil
of ignorance) in the allocation of academic capital based on merit,
which can only be objectively quantified relative to social origins of
individuals. As opposed to current subjective assessments (e.g.,
peer-review) or lottery systems, I propose the use of Big Data and
ethical AI to reconstruct the position of ignorance and contextualise
merit based on the expected merit given individuals’ social origins. I
also discuss the concept of ‘years post-PhD’ as it is used to introduce
fairness in allocation of academic capital, and propose a different and
less relativistic landmark that accounts for the years post-first
authorship publication. This is a novel conceptual framework which can
stimulate further research into the ecology of social justice.
Waveguide integration of a >4.7-THz quantum-cascade laser
Authors: Nuttall Eleanor , Han Yingjun , Pardo Diego , Kondawar Sanchit , Brewster Nick , Salih Mohammed , Li Lianhe , Horbury Michael , Davies Giles , Linfield Edmund , Wang Hui , Dean Paul , Ellison Brian , Valavanis Alexander
Published: May 2022

We have demonstrated waveguide integration of terahertz quantum cascade
lasers (THz QCLs) at frequencies above 4.7 THz. A precision
micromachining technique, followed by diamond-turning and
electroless-plating has been used to manufacture hollow rectangular
waveguides with integrated diagonal feedhorns. We show that surface
roughness at the 1μm level is achieved, enabling outcoupling of
radiation in the 4.75–5.05 THz band, with a divergence angle of 5°
along the plane of the QCL substrate.
High thermal tolerance in high elevation species and laboratory-reared colonies of tropical bumble bees
Authors: Betancourt Victor Hugo Gonzalez , Oyen Kennan , Aguilar Marlene , Herrera Andres , Martin Ruben , Ospina Rodulfo
Published: May 2022

1. Bumble bees are key pollinators with some species reared in captivity
at a commercial scale, but with evidence of population declines and with
alarming predictions under climate change scenarios. While studies on
the thermal biology of temperate species are still limited, they are
entirely absent from the tropics where the effects of climate change are
expected to be greater. 2. Herein we test if tropical bumble bees’ lower
(CTMin) and upper (CTMax) critical thermal limits decrease with
elevation and if the stable optimal conditions used in laboratory-reared
colonies reduces their thermal tolerance. 3. We assessed changes in
CTMin and CTMax of four species at two elevations (2600 and 3600 m) in
the Colombian Andes and of laboratory-reared individuals of B.
pauloensis. In addition, we examined the effect of body size and
compiled information on bumble bees’ thermal limits from the literature
to assess potential predictors for broad-scale patterns of variation. 4.
CTMin decreased with elevation while CTMax did not. CTMax was slightly
higher (0.84 °C) in laboratory-reared than in wild-caught bees while
CTMin was similar. CTMin decreased with increasing body size while CTMax
did not. Latitude is a good predictor for variations in CTMin while
annual mean temperature and extreme monthly temperatures are good
predictors for both CTMin and CTMax. 5. The stronger response in CTMin
with increasing elevation supports Brett’s heat-invariant hypothesis.
Tropical bumble bees appear to be about as heat tolerant as those from
temperate areas, suggesting that other aspects of climate besides
temperature (e.g., water balance) might be more determinant
environmental factors for these species under global warming.
Laboratory-reared colonies are adequate surrogates for addressing
questions on thermal tolerance and global warming impacts.
Tonsillectomy in Adults -- Increased Pain Scores are Correlated with Risk of Bleeding
Authors: Noy Roee , Ostrovsky Dmitry , Shkedy Yotam
Published: May 2022

Objective: Tonsillectomy is one of the most common surgeries worldwide,
mostly indicated for recurrent throat infections and sleep-disordered
breathing. The most significant complication is post-tonsillectomy
bleeding. Although several risk factors for post-tonsillectomy bleeding
in adults have been described, the role of post-operative pain as a risk
factor for hemorrhage has not been described in this patient population.
Design: Retrospective cohort study of adult patients (18 years and
older) who underwent tonsillectomy in a tertiary referral center.
Multi-variable logistic regression model was used to test correlation
between the independent variables and post-tonsillectomy bleeding.
Results: 305 patients (male to female ratio 1:1) with a mean age of 30.5
years old (18-82, ± 12). Mean body mass index was 26.6 (16-42, ±5) and
13% of patients were current smokers. Post-tonsillectomy pain on
post-operative day 1 and 2 was associated with increased risk of
bleeding (adjusted odds ratio 2.18, 95% confidence interval 1.73-2.44).
Other factors that were associated with increased risk of
post-tonsillectomy bleeding were male sex, young age (18-30 years old),
smoking, recurrent throat infections as an indication for surgery and
the usage of hot technique (p < 0.05). Conclusions: Increased
post-operative pain following tonsillectomy is associated with increased
risk of bleeding in adults. Other factors such as younger age group,
males, smoking, previous throat infections and using hot dissection
technique are also associated with risk of post-tonsillectomy bleeding.
Further studies should explore the effect of strict pain control
regimens on post-tonsillectomy bleeding in adults.
Relatively exact controllability of fractional stochastic delay system driven by Lévy noise
Authors: Huang Jizhao , Luo Danfeng
Published: May 2022

In this article, we consider the relatively exact controllability of
fractional stochastic delay system (FSDS) driven by Lévy noise. Firstly,
we derive the solution of linear FSDS via delayed matrix functions of
Mittag-Leffler (M-L). Subsequently, by virtue of the controllability
Grammian matrix, we explore the relatively exact controllability of
linear FSDS. In addition, with the aid of Jensen’s inequality, Hölder’s
inequality and Itô’s isometry, the existence and uniqueness of the
considered nonlinear FSDS are investigated by employing Banach
contraction principle.Thereafter, the relatively exact controllability
of nonlinear FSDS is discussed. Finally, the theoretical results are
supported through an example.
Deep Foci RF ablation using 3830 Medtronic pacemaker lead: proof of concept
Authors: AYALA-VALANI Luciano Martin , MELANCON Sebastien , EVANS Matilde , AUGER-MESSIER Mannix , Paredes Felix Ayala
Published: May 2022

Introduction Radiofrequency (RF) is the preferred thermal energy used in
electrophysiology. RF catheter must deliver the energy close to
arrhythmia foci. A new method to deliver RF to deeper locations using a
pacemaker lead is explored. Methods A Medtronic 3830 lead screwed in
chicken breasts delivered 50 watts RF energy in three methods: A) direct
fashion (RF catheter touching the proximal end of the 3830 lead, acting
as an extension of RF catheter), or B) 3830 lead as a return patch (RF
delivered in the bath without contact), or C) 3830 lead as a return
patch (RF delivered touching the breast surface close to the 3830 lead
screwed deep in the flesh). Different power settings were also tested.
Lesion surface area is reported in cm2. Results 76 measurements were
available. Bigger lesions were obtained at 10W method A (0.78cm2), 50W
method C (0.72cm2) and 5W method B (0.44cm2). High impedances were noted
at 10W and 50W with tissue remaining attached to the lead when removed.
Conclusion RF can be delivered to deeper foci through a 3830-pacemaker
lead with maximum size lesion formation using proximal unipolar direct
delivery and proximal close bipolar as the return patch. In humans, it
opens a path to attain deep septal foci (LV summit) or epicardial
structures (vein of Marshall, transmural ablation from RF endocardial to
LV coronary sinus lead as return patch): using standard, 4F pacemaker
leads, and 2F small EP catheters or even isolated guidewires.
Asymptotic behavior for textiles with loose contact
Authors: Falconi Riccardo , GRISO Georges , Orlik Julia , Wackerle Stephan
Published: May 2022

The paper is dedicated to the modeling and asymptotic investigation of a
linear elasticity problem, in the form of variational inequality, for a
textile structure. The textile is made of long and thin fibers crossing
each others, forming a periodic squared domain. The domain is clamped
only partially and an in plane sliding between the fibers is bounded by
a contact function, which is chosen to be loose. We also assume a
non-penetration condition for the fibers. Both partial clamp and loose
contact arise a domain split, leading to different behaviors in each of
the four parts. The homogenization is made via unfolding method, with an
additional dimension reduction to further simplify the problem. The four
cell problems are inequalities heavily coupled by the outer plane
macro-micro constraints, while the macroscopic limit problem results to
be an inequality of Leray-Lions type with only macro in plane
constraints. On both scales, no uniqueness is expected.
ABA-insensitivity of Alfalfa ( Medicago sativa L.) during seed germination associate with plant drought tolerance
Authors: Zhang Wanjun , Liu Yanrong , Jiang Dedai , Yan Jianping , Wang Kexin , Lin Shiwen
Published: May 2022

Abscisic acid (ABA) is a vital stress resistant hormone of plant in
coping with adverse environmental conditions, such as drought stress.
Sensitivity of seed germination to exogenous ABA treatment could link to
different drought tolerance ability of different plant species. Here, we
selected alfalfa seedlings (S0-50) from seeds germinated under 50 μM ABA
treatment. The S0-50 plant showed more sensitivity in stomatal closure
to exogenous ABA and PEG treatments, and also stronger drought tolerance
than the plant of ABA-sensitive seed during germination (S0-0). Testing
of ABA content in leaf indicated that the S0-50 had a higher ABA content
in normal and under drought stress growth conditions than that of the
S0-0 plants. The seed of S0-50 next generation (S1-50) showed
significantly higher germination ratio under 50 μM ABA treatment, and
also had longer root after 15% PEG6000 treatment than the segregated
ABA-sensitive seed (S1-0). We found a cytosol-nucleus dual-localized PPR
protein gene MsSOAR1 was significantly highly expressed in S0-50
than in S0-0 plant. Overexpression of AtSOAR1, a negative
regulator in ABA-mediated Arabidopsis seed germination inhibition, and
also a homologous gene of MsSOAR1, significantly improved alfalfa
drought tolerance, branch number and plant height, and reduced the
expression level of ABA receptors MsPYL5 and MsPYL6. The
results suggest that ABA-insensitive during seed germination could
associate with repression of ABA signaling transduction. Selection of
alfalfa seedling during seed germination with exogenous ABA could be a
way to obtain drought tolerance germplasm, at least in ‘Zhongmu No.1’
alfalfa cultivar the plant material we used in the experiment.
Fatigue life prediction in presence of mean stresses using domain knowledge-integrated ensemble of extreme learning machines
Authors: Gan Lei , Wu Hao , Zhong Zheng
Published: May 2022

An accurate and stable data-driven model is proposed in this work for
fatigue life prediction in presence of mean stresses. In the model,
multiple independent extreme learning machines are trained using
different training data and neural network configurations, and are then
combined equally in an ensemble to model the complex correlations
between fatigue life, material properties and mechanical responses.
Meanwhile, theoretical prediction, as a representation of domain
knowledge, is integrated to optimize the data-driven processes of model
training and prediction, diversifying the information source of fatigue
life modeling. Extensive experimental results covering thirteen metallic
materials and a wide range of mean stress levels are collected from the
open literature for model training and evaluation. The results
demonstrate that the proposed model can achieve high accuracy and good
stability [simultaneously](javascript:;), even with a small training
dataset, showing great applicability for fatigue life prediction under
mean stress loading conditions.
Generating view models of monotone polyhedrons for visual identification. Presentation of results of the PhD thesis
Authors: Salamończyk Andrzej , Mokrzycki Wojciech
Published: May 2022

Main results the PhD dissertation are presented in which the goals were: to develop appropriate methods and algorithms in order to obtain a complete view representation of the object using the idea of the viewing sphere with the perspective projection, to compare and select the best algorithm for this task, and to show how the viewing models can be matched with objects extracted from range images. It was proved that it is possible to obtain the approximate view representation of a monotone polyhedron using the algorithm with the complexity of O(n2) and that the minimum number of matching view representations of a monotone polyhedron given with the data from range images is O(n2). The methods of generating view representations of monotone polyhedrons are investigated for the purpose of visual recognition systems and some of them are presented. View representations are used in many areas including identification tasks, e.g. as an element of visual channel in automation and robotics. The 3D view representation of objects can be constructed offline and saved in a database for further use in the recognition task.
Dynamic deorbit of small-sized space debris in near-Earth orbit in view of space-based pulse laser
Authors: Fang Yingwu
Published: May 2022

The objective of this work is to address active deorbit of small-sized space debris in the near-Earth orbit by a space-based pulse laser. A dynamic deorbit model based on perigee altitude was established during space-based laser pulse irradiating the debris. The effects of orbital eccentricity, perigee altitude, true anomaly, and action distance of the debris with the number of pulse lasers and laser powers were obtained. Furthermore, the whole deceleration process of the debris removal irradiated by a pulse laser was intuitively described, and the evolution rules of the debris movement in the whole stage of active deorbit were also demonstrated. As a result, the three-dimensional visualization scene of the debris movement and the complete period evolution images of the debris deorbit were displayed. Finally, the results of numerical computations were consistent with the outcomes of visual simulations based on the given conditions. That is, when the laser power was 500 kW and the number of pulses was 965, the purpose of debris deorbit was completed by four laser irradiations, and the semimajor axis and eccentricity of the debris reached were 9915.4 km and 0.338 at the moment. These results can provide an important reference for the integrated research on space-based pulse laser active removal and clearance evaluation of small-sized space debris.
Electricity Generation from Waste Tomatoes, Banana, Pineapple Fruits and Peels Using Single Chamber Microbial Fuel Cells (SMFC)
Authors: IA Kalagbor
Published: May 2022

Green Chemistry is gaining prominence in environmental and technological processes. Generating electricity from agro wastes comprising of waste vegetables and fruits are new sources of clean energy. Scientists need to develop technological methods of converting these agro wastes to useful resources especially in developing countries. Fruit wastes are generated in large quantities globally from processing plants. Defective tomatoes rejected and damaged banana fruits as well as unusable pineapple fruits and peels constitute part of the agro waste biomass generated annually. Effective management of this biomass is still ongoing. This research focuses on the conversion of these agro wastes to bioelectricity (green energy) using single microbial fuel cells (SMFCs) technology. Fruits wastes of 5kg, 10kg, 15kg and 20k were used. Results showed that the higher the quantity of substrate, the higher the electricity produced. The maximum voltage outputs generated on day 1 were 4.2V, 3.1V and 3.0V from tomatoes, banana and pineapple (fruit and peel) wastes respectively. The values obtained for current readings were significantly proportional to the voltage readings. The physiochemical parameters; pH, Conductivity, BOD, COD and DO were consistent with those from similar studies. The conversion of tomatoes, banana and pineapple fruit waste to bioelectricity was achieved. Reduction of this biomass by biodegradation using the SMFC technology is one way of removing these agro wastes from the ecosystem to maintain a clean, healthy, pollution-free environment.
Determination of Residual Chlorine in Uasin Gishu’s Country Water Supply
Authors: CK Kiprop
Published: May 2022

The knowledge of residual chlorine (RC) is important at final check to the quality of water supplied to consumers. World Health Organization (WHO) recommends a standard at 0.2 - 0.3 mg/L of RC allowable. According to the Centers for Disease Control and Prevention (2020), RC is important for it shows that a significant amount chlorine was initially added to the water to inactivate bacteria and also that the water is safe from recontamination. Given the current discussion on the global effects of chlorine to health, it would be of great importance to determine the levels of RC on the water that is consumed by households in Uasin Gishu County. This research work was set to evaluate the concentration of RC within the water supply of Uasin Gishu County in Kenya. Ten points were chosen at strategic points where tap drinking water were to be sampled for tests between the month of January and March 2021. The samples were tested using a comparator which showed exactly how much chlorine (in mg/L) is in the water if present. Several factors may affect the amount of residual chlorine in water which include pH, temperature and chlorine decay. These factors greatly dictates the results depending on the time and conditions in which the sample is kept before the testing. This shows why water tests differently at different distance points from the treatment plant. The results were tabulated in excel spreadsheets while graphs and charts were used to show comparison of residual chlorine at different sampling points.
Banco de Leite Humano
Authors: Feitosa Antonio Lucas Ferreira , Da Silva Maria Gabriella Pacheco
Published: May 2022

Introdução: os bancos de leite humano foram criados para apoiar e incentivar o aleitamento materno, atuando como estratégia de política pública na redução da mortalidade neonatal e proteção à saúde do binômio. Por se tratar de um espaço de atuação multidisciplinar, os bancos de leite tornam-se um ambiente ideal para a atuação do fonoaudiólogo, profissional que contribui no suporte às mães, especialmente durante o estabelecimento da amamentação exclusiva. Objetivo: relatar as possibilidades de atuação fonoaudiológica em um banco de leite humano. Descrição da experiência: estudo de abordagem qualitativa descritiva do tipo relato de experiência, realizado entre os meses de março e julho de 2020, em um Banco de Leite Humano de uma maternidade pública do Nordeste, credenciada na Iniciativa Hospital Amigo da Criança. A vivência compreendeu dois seguimentos: atuação técnica e atuação assistencial. As experiências foram apresentadas por meio da narração discursiva. O espaço de atuação da Fonoaudiologia em um banco de leite humano pode ser diversificado, pois abrange a atuação técnica e assistencial, desde o recebimento do leite humano doado à assistência a puérpera e ao recém-nascido. É necessário capacitação específica para que o profissional seja inserido dentro da equipe de um banco de leite humano. Considerações finais: Foi possível identificar, por meio da experiência, o papel do fonoaudiólogo no banco de leite humano, bem como compreender a necessidade da sua inserção na equipe deste setor no âmbito hospitalar.
Processamento fonológico e leitura em crianças com dificuldade de aprendizagem em escolas bilíngues português-inglês
Authors: Rocha Thayane Amanda de Lima , Medeiros Ana Carolina Dantas de , Messias Bárbara Louise Costa , Azevedo Anna Irenne de Lima , Salgado-Azoni Cíntia Alves
Published: May 2022

Introdução: Há influência positiva no desenvolvimento da linguagem, quando ocorre a exposição a um novo idioma. No entanto, quando se considera esse contexto em crianças com dificuldade de aprendizagem, o deficit apresentado na primeira língua pode ser transferido para o aprendizado da segunda. Objetivo: O objetivo do presente estudo é caracterizar o desempenho em processamento fonológico e leitura em três crianças com dificuldade de aprendizagem em escolas bilíngues português-inglês. Método: Os dados gerais sobre o desenvolvimento e desempenho nas habilidades de consciência fonológica, memória de trabalho fonológica, acesso ao léxico mental e leitura em três crianças de 8 a 9 anos de idade, cursando 2º e 3º ano do ensino fundamental foram descritos; todos com, ao menos, dois anos de exposição à escola bilíngue, especialmente na alfabetização. Na avaliação, foram aplicados os protocolos CONFIAS, Memória de Trabalho Fonológica, TENA, RAN e Protocolo de Avaliação da Compreensão Leitora de Textos Expositivos. Resultado: as crianças apresentaram desempenho aquém do esperado nas habilidades do processamento fonológico, na fluência da leitura oral, bem como na compreensão leitora. Conclusão: esses resultados podem contribuir tanto para a compreensão de aspectos da linguagem escrita na atuação do fonoaudiólogo com crianças bilíngues, quanto para as implicações clínicas e educacionais, haja vista a escassez de estudos nessa área, no Brasil.
Núcleo Ampliado de Saúde da Família como espaço estratégico de aprendizagem interprofissional em saúde
Authors: Macêdo Pedro Henrique Silva de , Lima Bárbara Patrícia da Silva , Arce Vladimir Andrei Rodrigues
Published: May 2022

Introdução: Experiências de formação interprofissional no âmbito dos Núcleos Ampliados de Saúde da Família – Atenção Básica (NASF-AB) podem representar uma importante estratégia de contraposição à fragmentação do trabalho em saúde e, consequentemente, do cuidado, favorecendo a uma atuação em saúde mais eficiente, a partir das necessidades de saúde da comunidade. Objetivo: Discutir a experiência de formação interdisciplinar e interprofissional em saúde de um estudante de Fonoaudiologia vivenciada em um estágio curricular no contexto de um NASF-AB em Salvador, Bahia, Brasil. Descrição: As atividades dos estudantes foram organizadas em 5 frentes de trabalho, a saber: 1. Discussão de casos com profissionais com vistas à atualização do Planejamento Terapêutico Singular; 2. Grupos educativos voltados à prevenção; 3. Atendimentos individuais; 4. Programa Saúde na Escola; e 5. Intervenção pedagógica com profissionais. Considerações finais: A experiência de formação interprofissional no contexto do NASF-AB permitiu o desenvolvimento de competências colaborativas para o trabalho em equipe interprofissional, como a comunicação interprofissional, a clarificação de papéis, e a responsabilidade e trabalho em equipe, fundamentais para o alcance da integralidade do cuidado em saúde. Ademais, permitiu refletir sobre os limites da formação essencialmente clínica e fragmentada que hegemoniza a Fonoaudiologia no Brasil, bem como sobre sua insuficiente inserção na Atenção Primária em Saúde. Durante a experiência, outras reflexões foram suscitadas e permitiram a compreensão de conceitos importantes através da articulação teórico-prática possibilitada pela vivência em campo.
Protocolo Consensus Auditory-perceptual Evaluation of Voice (CAPE-V) e GRBASI
Authors: Borges Vitor Sérgio , Bergami Ester Grammeliski , Azevedo Elma Heitmann Mares , Guimarães Michelle Ferreira
Published: May 2022

Introdução: As escalas de avaliação perceptivo-auditiva são amplamente utilizadas na clínica vocal. O objetivo desta comunicação é apresentar uma proposta de ferramenta para análise digital do CAPE-V e da escala GRBASI. Descrição: O protocolo digital foi elaborado utilizando o software Microsoft Excel® para Microsoft 365® com base na versão adaptada culturalmente do CAPE-V para o português brasileiro e na escala japonesa GRBASI. A ferramenta foi organizada em quatro planilhas conjuntas, sendo uma de dados gerais, duas para anotar as avaliações dos parâmetros e uma para comparar as avaliações pré- e pós-intervenção. Considerações finais: Em relação ao CAPE-V, a ferramenta produzida é capaz de mensurar, de forma automática, as escalas analógico-visuais de cada parâmetro avaliado e realizar as somatórias necessárias. Com a GRBASI é possível o preenchimento da escala considerando-se os graus dos parâmetros alterados, que podem variar de ausente (zero) a acentuado (três). São gerados gráficos e tabelas que auxiliam nas análises clínicas tanto do CAPE-V como da GRBASI. Acreditamos que esta ferramenta possa contribuir de diversas formas, como: ferramenta acessível e digital para uso clínico e para pesquisa; pode ser utilizada para treinamento perceptivo-auditivo; pode ser útil para demonstrar ao paciente, por meio dos gráficos gerados, o feedback sobre sua evolução em fonoterapia; pode facilitar o fluxo de informações obtidas na avaliação, além de contribuir para a redução do uso de papel. O download está disponível gratuitamente.
Respon Pertumbuhan Bibit Tanaman Jambu Biji 'Kristal' (Psidium guajava L.) pada Dua Jenis Media Tanam dan Beberapa Jenis Mikroorganisme Lokal (MOL) Limbah Pertanian
Authors: Pratama Diki Bayu , Widyatuti R. A. Diana , Yelli Fitri , Hendarto Kus
Published: May 2022

This study aims to determine the effect of various planting media and local microorganisms on the growth of 'Kristal' guava seedlings and the interaction between the provision of various planting media and local microorganisms on the growth of 'Kristal' guava seedlings. This research was conducted at the Integrated Field Laboratory, Faculty of Agriculture, University of Lampung from August 2020 to March 2021. The treatments were arranged in a factorial (2x4) in a completely randomized design (CRD) which was repeated 3 times. The first factor was planting media (M) which consisted of (M1) soil and rice husks, (M2) soil and mushroom baglog. The second factor is types of local microorganisms (MOL) (P) which consists of 4 levels, namely (P1) local microorganisms EM4, (P2) local microorganisms of stale rice, (P3) local microorganisms of oil palm empty fruit bunches, and (P4) local microorganisms of fruit and vegetables. rotten vegetables. The results of research that have been processed by analysis of variance on all observational variables state that the provision of different planting media affects the observation variables, namely the number of leaves, number of shoots, stem diameter of 200 mm from grafting eye, dry weight of the trunk, leaf area and content of chlorophyll content but not significantly different in plant height while the treatment of different local microorganisms as well as the interaction of the treatment of various planting media and local microorganisms did not show a significant effect on all existing observation variables.Keywords : Guava, growing media, local microorganisms, growth
Studi Bahan Kemasan terhadap Viabilitas Benih Kedelai (Glycine max [L.] Merril) Pascasimpan Dua Belas Bulan di Ruang Simpan Suhu Rendah
Authors: Ermawati Ermawati , Nurmauli Niar , Timotiwu Paul Benjamin , Bimantara Restu Deni
Published: May 2022

Soybean is a commodity that is a source of vegetable protein that is easily obtained at a low price. The factor that affects low soybean productivity in Indonesia is the lack of use of quality seeds by farmers. Efforts to maintain the shelf life of soybean seeds can be done by using good packaging materials. The purpose of this study was to determine the effect of packaging materials that have different characteristics under low temperature storage conditions on the viability of soybean seeds after twelve months of storage. This research was carried out at the Seed and Plant Breeding Laboratory, Faculty, Agriculture, University of Lampung from October 2019 to June 2020. The treatment design was a single and unstructured factor, namely packaging material (b). The treatment of packaging materials consisted of aluminum foil (b1), polyethylene (b2), polypropylene (b3), brown envelope paper (b4), ordinary plastic (b5), calico fabric (b6). The packaging materials for six treatments were arranged in a randomized block design (RAK) with four replications. The results of this study showed that the viability of seeds was high in aluminum foil, polyethylene, polypropylene, ordinary plastic, envelope paper, and calico packaging materials in low temperature storage in an air-conditioned storage room after twelve months of storage. Twelve months post-stored seed viability was indicated by the germination rate of 87.48%; maximum growth potential of 96.25%; germination speed 30.96%; strong normal sprouts 81.19%; hypocotyl length 11.99 cm; dry weight of normal sprouts 31.82 mg; water content 7.30%; and electrical conductivity of 244.96 S/cm. Key words: viability, soybean seed, storage, packaging material, low temperature
Pengaruh Dosis Pupuk NPK Phonska Plus dan Trichoderma terhadap Pertumbuhan dan Produksi Tanaman Melon (Cucumis melo L.)
Authors: Situmorang Restua Mahardday , Hendarto Kus , Ginting Yohannes Cahya , Widyastuti R.A. Diana
Published: May 2022

This study aims to evaluate the growth and production of melons due to the administration of trichoderma sp and the addition of a dose of NPK fertilizer and the interaction of trichoderma sp. with Phonska NPK fertilizer. This research was conducted in the Integrated Field Laboratory, Faculty of Agriculture, University of Lampung from January to March 2021. The treatments were arranged in a 2x4 factorial with 3 replications in a Randomized Block Design (RAK). The first factor is the first factor is trichoderma (without trichoderma and 20 g/plant), the second factor is Phonska NPK fertilizer dose (without NPK, 30 g/plant, 60 g/plant and 90 g/plant). The results showed (1) Application of trichoderma 20 g/plant increased plant stem length (124.45), melon diameter (104.39 mm) higher than without trichoderma application, plant stem length (122.74cm), melon diameter (100, 13 mm), as well as melon weight per plant increased from 666.10 g (without trichoderma application) to 717.05 g (20 g/plant). (2) Application of NPK phonska fertilizer at a dose of 60 g/plant increased plant stem length (125.10 cm), melon diameter (108.70 mm) higher than without NPK application (123.23 cm) (95.82 mm), Likewise, melon weight per plant increased from 649.83 g (without NPK fertilizer) to 748.18 g. (3) Application of trichoderma sp. 20 g/plant in synergy with the application of NPK phonska fertilizer at a dose of 60 g/plant gave the best results based on the variables of plant stem length (127.30 cm), melon diameter (115.00 mm) and melon weight (795.63 g) compared to without application of trichoderma sp and without application of fertilizer the average length of plant stems (123.17 cm), melon diameter (92.77 mm) and melon weight (663.10 g).Keywords : Melon, fertilizer,yield, trichoderma