bluuebunny/crossref_metadata_2025 huggingface dataset:
Polyglot data management
Authors: Kiehn Felix , Schmidt Mareike , Glake Daniel , Panse Fabian , Wingerath Wolfram , Wollmer Benjamin , Poppinga Martin , Ritter Norbert
Published: September 2022

Due to the increasing variety of the current database landscape, polyglot data management has become a hot research topic in recent years. The underlying idea is to combine the benefits of different data stores behind a predefined set of common interfaces and thus address use cases that individual stores cannot meet. This can be accomplished using different approaches which vary greatly in terms of capabilities, functionality, and architectural concepts. This tutorial provides a detailed overview of the current state of research in polyglot data management. We motivate its use by showing the high diversity of existing data stores and discussing three use cases in which individual stores are insufficient. Thereafter, we present different taxonomies for classifying polyglot data systems and give a detailed review of a number of selected systems. Finally, we compare these systems based on their features and discuss open challenges that still need to be addressed in future research.
From BERT to GPT-3 codex
Authors: Trummer Immanuel
Published: September 2022

Large language models have recently advanced the state of the art on many natural language processing benchmarks. The newest generation of models can be applied to a variety of tasks with little to no specialized training. This technology creates various opportunities for applications in the context of data management.

The tutorial will introduce participants to basic background on language models, discuss different methods to use language models, and give an overview and short demonstration of available libraries and APIs. Models for generating natural language will be considered as well as models, such as GPT-3 Codex, which complete program code or generate code from natural language instructions. Finally, the tutorial will discuss recent research in the database community that exploits language models in the context of traditional database systems or proposes novel system architectures that are based on them.

The tutorial is targeted at database researchers. No prior background on language models is required. The goal of the tutorial is to introduce database researchers to the latest generation of language models, and to their use cases in the domain of data management.
The past, present and future of indexing on persistent memory
Authors: Huang Kaisong , He Yuliang , Wang Tianzheng
Published: September 2022

Persistent memory (PM) based indexing techniques have been proposed to build fast yet persistent indexes that sit on the memory bus. Over the past decade, numerous techniques have been proposed with various assumptions and different properties (e.g., some of them were proposed before real PM became available), making it hard for researchers and practitioners to gain a comprehensive understanding of the area.

In this tutorial, we give a comprehensive overview of PM indexing techniques, covering both range and hash indexes. We contrast the designs proposed before and after real PM became available, summarize the common and useful design techniques, and discuss potential future challenges and opportunities in this area.
Big graphs
Authors: Fan Wenfei
Published: September 2022

Big data is typically characterized with 4V's: Volume, Velocity, Variety and Veracity. When it comes to big graphs, these challenges become even more staggering. Each and every of the 4V's raises new questions, from theory to systems and practice. Is it possible to parallelize sequential graph algorithms and guarantee the correctness of the parallelized computations? Given a computational problem, does there exist a parallel algorithm for it that guarantees to reduce parallel runtime when more machines are used? Is there a systematic method for developing incremental algorithms with effectiveness guarantees in response to frequent updates? Is it possible to write queries across relational databases and semistructured graphs in SQL? Can we unify logic rules and machine learning, to improve the quality of graph-structured data, and deduce associations between entities? This paper aims to incite interest and curiosity in these topics. It raises as many questions as it answers.
Toward interpretable and actionable data analysis with explanations and causality
Authors: Roy Sudeepa
Published: September 2022

We live in a world dominated by data, where users from different fields routinely collect, study, and make decisions supported by data. To aid these users, the current trend in data analysis is to design tools that allow large-scale analytics, sophisticated predictive models, and beautiful visualizations. At this exciting time when both data and analytics tools are widely accessible to users, treating analyses as magical black boxes can painfully mislead users and make troubleshooting frustratingly time-consuming. For instance, although the perils of interpreting correlations inferred by predictive models as causation are well-documented, making such a distinction can be tricky for many users who do not have formal training in computer science or statistics. In this paper, we give an overview of our research toward bridging this gap along two main thrusts of
explanations
and
causality.
Explanations support a primary goal of data analysis - empowering users to be able to interpret the results in data analysis and troubleshoot the process. Causality complements explanations by supporting prescriptive or actionable analytics with counterfactuals and interventions, thereby helping sound decision making. In these thrusts, we explore the symbiotic relationship between core database techniques and complementary techniques from machine learning and statistics via interdisciplinary collaborations, and employ them to applications in domains like computer science education, law, and health.
Parameterized Simpson-like inequalities for differential s-convex functions
Authors: Mahmoudi Lilia , Meftah Badreddine
Published: September 2022

In this paper, we first prove a new parameterized identity that generates a
quadrature rule family similar to Simpson’s second formula, and then we
establish some new Simpson-like type inequalities for functions whose first
derivatives are s-convex in the second sense, from which we can deduce the
famous

3
8

{\frac{3}{8}}

-Simpson inequality. We end the article with some applications.
Influence of various class cleaning agents for prosthesis on Co–Cr alloy surface
Authors: Nowak Joanna , Steinberg Klaudia , Sokołowski Jerzy , Bociong Kinga
Published: September 2022

Introduction

Denture cleaners should not be harmful to dental prostheses elements, but immersions in cleaner solutions during a long time of using prosthesis may cause changes on Co–Cr alloy surfaces. There are five classes of denture cleaners: alkaline hypochlorites, alkaline peroxides, disinfectants, diluted acids, and enzymes. The aim of this work was to evaluate the influence of denture cleaners solutions on the surface properties of Co–Cr alloy.

Materials and method

Specimens cast from cobalt–chromium alloy were divided into eight groups: 1 – dry; 2 – ultrapure water; 3 – 20% wt/wt sodium; 4 – 20% chlorhexidine digluconate; 5 – Correga Tabs BioFormula; 6 – 20% wt/wt citric acid; 7 – 0.5% NaOCl; and 8 – 5.0% NaOCl. After immersion in 200 mL of cleaning agent solution at 45°C in 3 years, simulation of use, surface roughness, contact angle, surface free energy (SFE), and microscopic observation was performed.

Results

For citric acid and NaOCl, roughness (Ra) raised clearly. These cleaning agents also causedRq,Rv,Rp, andRSmto increase the most. The observed water contact angle after using denture cleaners, especially citric acid, and NaOCl decreases, and the values of SFE increase. Under a digital microscope, the harmful effect of citric acid and solutions of NaOCl was visible.

Conclusions

Diluted acids and alkaline hypochlorites in presented concentrations influence Co–Cr surface parameters like roughness and wettability. Other classes of denture cleaning agents do not affect surface roughness parameters which make them safer for the metallic components of removable partial dentures.
Novel implantable antenna with miniaturized footprint size for wideband biomedical telemetry applications
Authors: Ahmad Sarosh , Manzoor Bilal , Shair Muhammad Muzamil , Khan Shahid , Akram Ayesha , Ghaffar Adnan , Abdullah Al-Gburi Ahmed Jamal , Ali Esraa Mousa , Arpanaei Farhad , Alibakhshikenari Mohammad
Published: September 2022

Medical telemetry applications rely heavily on biomedical implanted antennas. These biomedical implanted devices can enhance and monitor patients’ daily life circumstances. A low-profile, downsized size implanted antenna operating at 915 MHz in the industrial, scientific, and medical (ISM) band is suggested in this research. The antenna is a simple slotted patch supplied by a 50-impedance coaxial probe. The radiator is made up of two slotted parasitic patches with one square-shaped outer radiator are manufactured on a Roger Droid RT5880 substrate with a standard height of 0.254 mm (ε
r = 2.2, tanδ = 0.0009). The entire dimension of the given antenna is 11 × 11 × 0.2514 mm with an electrical size of 0.049λ
g × 0.049λ
g × 0.0011λ
g. The antenna spans a bandwidth of 0.82–1.05 GHz when working inside muscle tissues (25.13 percent). The antenna’s calculations and experimental findings are quite similar. The computed specific absorption rate (SAR) values inside muscle of above 1 g mass tissue are 7.25 W/kg, according to the data. The stated SAR values are lower than the limit set by the Federal Communications Commission (FCC). As a result, the proposed small antenna is a strong contender for biological implantable applications.
Optimal conditions of solvability of periodic problem for systems of differential equations with argument deviation
Authors: Mukhigulashvili Sulkhan
Published: September 2022

In this paper, we study, on the interval

I
=

[
a
,
b
]

{I=[a,b]}

, the problem of the solvability and unique solvability of systems of higher-order differential equations with argument deviation

u
i

(

m
i

)

(
t
)

=

p
i

(
t
)

u

i
+
1

(

τ
i

(
t
)

)

+

q
i

(
t
)

 

(
i
=
1
,
…
,
n
)

u_{i}^{(m_{i})}(t)=p_{i}(t)u_{i+1}(\tau_{i}(t))+q_{i}(t)\quad(i=1,\ldots,n)

and

u
i

(

m
i

)

(
t
)

=

f
i

(
t
,

u

i
+
1

(

τ
i

(
t
)

)

)

+

q

0
⁢
i

(
t
)

 

(
i
=
1
,
…
,
n
)

,

u_{i}^{(m_{i})}(t)=f_{i}\bigl{(}t,u_{i+1}(\tau_{i}(t))\bigr{)}+q_{0i}(t)\quad(%
i=1,\ldots,n),

under the periodic boundary conditions

u
i

(
j
)

(
b
)

-

u
i

(
j
)

(
a
)

=

c

i
⁢
j

 

(
i
=
1
,
…
,
n
,
j
=
0
,
…
,

m
i

-
1
)

,

u_{i}^{(j)}(b)-u_{i}^{(j)}(a)=c_{ij}\quad(i=1,\ldots,n,\,j=0,\ldots,m_{i}-1),

where

u

n
+
1

=

u
1

{u_{n+1}=u_{1}}

,

n
≥
2

{n\geq 2}

,

m
i

≥
1

{m_{i}\geq 1}

,

p
i

∈

L
∞

⁢

(
I
;
R
)

{p_{i}\in L_{\infty}(I;R)}

,

q

0
⁢
i

∈

L
⁢

(
I
;
R
)

{q_{0i}\in L(I;R)}

,

f
i

:

I
×
R

→
R

{f_{i}:I\times R\to R}

are Carathéodory class functions, and

τ
i

:

I
→
I

{\tau_{i}:I\to I}

are measurable functions.
The optimal conditions are obtained, which guarantee the unique solvability of the linear problem and take into account the effect of argument deviation. Based on these results, the optimal conditions of the solvability and unique solvability are proved for the nonlinear problem.
On linear spline algorithms of computerized tomography in the space of n-orbits
Authors: Ugulava Duglas , Zarnadze David
Published: September 2022

We fix a continuous linear operator

A
:

H
→
M

{A:H\rightarrow M}

acting between the Hilbert spaces H and M that admits a singular value decomposition (SVD). We consider the following ill-posed problem: for an element

f
∈
M

{f\in M}

, find

u
∈
H

{u\in H}

such that

A
⁢
u

=
f

{Au=f}

and a generalized solution
in the sense of Moore–Penrose u is sought that satisfies the equation

A
*

⁢
A
⁢
u

=

A
*

⁢
f

{A^{*}Au=A^{*}f}

. Moreover, we fix an integer

n
∈

ℕ
0

=

{
0
,
1
,
2
,
…
}

{n\in\mathbb{N}_{0}=\{0,1,2,\dots\}}

and transfer this equation to a special Hilbert space

D
⁢

(

(

A
*

⁢
A

)

-
n

)

{D((A^{*}A)^{-n})}

of n-orbits. For an approximate solution of this equation in the case of a nonadaptive information on the right-hand side f, a linear spline algorithm is constructed.
The specificity of the considered norm is that the approximate solution is the truncated singular value decomposition (TSVD) and does not depend on n. In the case

n
=
0

{n=0}

, the space

D
⁢

(

(

A
*

⁢
A

)

-
n

)

{D((A^{*}A)^{-n})}

coincides with H and we obtain the results for the latter space. In the limiting case of the Fréchet–Hilbert space of all orbits

D
⁢

(

(

A
*

⁢
A

)

-
∞

)

{D((A^{*}A)^{-\infty})}

, the equation

A
*

⁢
A
⁢
u

=

A
*

⁢
f

{A^{*}Au=A^{*}f}

becomes well-posed and was considered in
[D. Ugulava and D. Zarnadze,
On a linear generalized central spline algorithm of computerized tomography,
Proc. A. Razmadze Math. Inst. 168 2015, 129–148].
It is also noted that the space

D
⁢

(

(

A
*

⁢
A

)

-
∞

)

{D((A^{*}A)^{-\infty})}

is the projective limit of the sequence of Hilbert spaces

{

D
⁢

(

(

A
*

⁢
A

)

-
n

)

}

{\{D((A^{*}A)^{-n})\}}

. The application of the obtained results for the computerized tomography problem, i.e., for the inversion of the Radon transform

ℜ

{\mathfrak{R}}

with the SVD of Louis
[A. K. Louis,
Orthogonal function series expansions and the null space of the Radon transform,
SIAM J. Math. Anal. 15 1984, 3, 621–633]
in the space

D

(

(

ℜ
*

ℜ
)

-
n

)

)

{D((\mathfrak{R}^{*}\mathfrak{R})^{-n}))}

is given.
In-situ leakage behavior of polymer-metal hybrids under mechanical load
Authors: Ott Constantin , Drummer Dietmar
Published: September 2022

Tightness against media is a frequent requirement for technical components. Despite various standardized test procedures, failure regularly occurs during use. Often, no clear cause for failure can be determined afterwards. In this article, a new test setup is presented and applied, which allows an in-situ measurement during a mechanical load. A flow meter with a measuring range of 0.02 mL/min to 5 mL/min is used for this purpose. This makes it possible to determine leakage rates with time resolution and thus to identify the moment of failure or the causal failure load. This new method was applied directly to different aluminum inserts with a polyamide 66 (PA66) overmold. It was shown that no increase in leakage occurs until a maximum force is reached, even with multiple loads. This maximum force depends only on the pretreatment of the inserts and can be determined in a simple pull-out test independently of the test setup used here and can therefore be used for the design of assemblies. In the test, a maximum force of 100 N was achieved for untreated inserts, 140 N for adhesion promoter-coated parts and 600 N for etched inserts with a contact area of 48 mm2. With this results, a new link between adhesion and tightness can be shown, which of course is only valid for initial tight parts.
Comparing the influence of foot reflexology and fasting mimicking diet on quality of life and sleep quality in obesity hypoventilation syndrome
Authors: Elbanna Rana Hesham Mohamed , Elabd Sherif Osama Abdelsalam , Alghitany Salma Ibrahim Abdelmohsen
Published: September 2022

Objectives

Obesity hypoventilation syndrome is one of the most serious outcomes of obesity-related respiratory difficulties, resulting in higher healthcare costs as well as increased cardio-respiratory morbidity and mortality.

Methods

Sixty-two males who had a high risk of obstructive sleep apnea according to the STOP-BANG Sleep Apnea Questionnaire were enrolled in the study. Their age is 50–60 years old, and they have a BMI of 35–40 kg/m2, daytime hypercapnia, and sleep breathing problems. The patients were divided into two equal groups at random reflexology fasting-mimicking diet groups. Weight, height, waist, and neck circumference were assessed at the beginning of the study and after two months of the intervention. Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI), which is used to evaluate sleep quality. The Maugeri Obstructive Sleep Apnea Syndrome (MOSAS) questionnaire was used to assess a patient’s quality of life.

Results

There was a significant change in the MOSAS and PSQI questionnaires for both groups post-intervention, as the p-value was less than 0.05. The percentage change in the MOSAS questionnaire score and PSQI questionnaire was higher in the mimic diet group than in the reflexology group. Also, the mimic diet group’s weight and neck circumference were considerably reduced after the intervention, with no change in the reflexology group.

Conclusions

Reflexology and a fasting-mimicking diet were found to have a substantial impact on enhancing the quality of life and sleep in people with obesity hypoventilation syndrome.
Maternal knowledge of recommendations for safe infant sleep and intentions for implementation – a cross sectional analysis of data from the KUNO-Kids birth cohort study
Authors: Fill Malfertheiner Sara , Postpischil Janina , Gaertner Vincent D. , Brandstetter Susanne , Metcalfe Alan J. , Seelbach-Göbel Birgit , Apfelbacher Christian , Melter Michael , Kabesch Michael , Kerzel Sebastian
Published: September 2022

Objectives

Despite major advances in prevention, sudden infant death syndrome (SIDS) remains an important cause of infant mortality. The aim of our study was to determine actual knowledge and intentions to implement SIDS prevention measures among new mothers and to identify potential knowledge gaps for improved postpartum counselling strategies.

Methods

Data was collected in a standardized interview from participants of the KUNO-Kids birth cohort study before discharge from maternity ward. The mothers did not receive any specific teaching prior to the interview.

Results

The majority of 2,526 interviewed mothers were able to actively report important recommendations for safe infant sleep, including the exclusive face-up position. However, 154 mothers (9%) intended to position the newborn face-down sometimes or often. The most frequently envisaged sleeping furniture was a bedside sleeper (n=1,144, 47%), but 2.2% of mothers indicated that the intended default sleeping place for the newborn would be the parents’ bed (which is discouraged by the recommendations). For 43% of the infants (n=1,079), mothers planned to have loose objects in the bed and 189 mothers (7%) intended to use a loose blanket. 22% of infants (n=554) will live in a household with a smoker. Multivariate regression showed a significant association of “good knowledge” with maternal age and with not being a single parent, whereas the household size was negatively associated.

Conclusion

Although the majority of mothers in our birth cohort were aware of many recommendations for safe infant sleep, our data also uncovered weaknesses in SIDS prevention knowledge and point to specific areas with potential for improved counselling.
A (Long) Tale of Two Leaders: Charting the Spatial and Sectoral Roles of the West and China in Shaping Past, Present and Future Economic Globalization(s)
Authors: Chen Xiangming
Published: September 2022

Globalization has run into two intersected momentous shifts over the past decade. One is an accelerating retreat in the Western-led economic globalization. The other is the continued surge of China as a leader of alternative economic globalization, via the Belt and Road Initiative. These two powerful trends are complicated by COVID-19 and the Ukraine war with their disruptions of global geopolitics, plus a potential technological decoupling between China and the United States as great-power rivals. This unprecedented combination of challenges and crises occasions a fresh analysis of the roles of the West versus China in shaping economic globalization past and present. Against the state-centric approach to globalization, I develop a historically-informed framework to couple spatial and sectoral analyses of the trajectories of economic globalization shaped by the West and China. I first examine the cross-regional dimensions of economic globalization across Eurasia featuring China’s primary role in driving the China-Europe Freight Train. I then explore China’s exceptional strength in delivering overseas infrastructure projects, as embodied by the China-Laos Railway, relative to the West’s sectoral advantages bearing on economic globalization. Lastly, I summarily discuss the past and present roles of the West versus China in producing new divergence in future economic globalization.
A new rate of convergence estimate for homogeneous discrete-time nonlinear Markov chains
Authors: Shchegolev Aleksandr A.
Published: September 2022

In the paper, we study a new rate of convergence estimate for homogeneous discrete-time nonlinear Markov chains based on the Markov–Dobrushin condition. This result generalizes the convergence estimates for any positive number of transition steps. An example of a class of processes is provided to point that such estimates considering several transition steps may be applicable when one transition can not guarantee any convergence. Moreover, a better estimate can be obtained for a higher number of transitions steps. A law of large numbers is presented for a class of ergodic nonlinear Markov chains with finite state space that may serve as a basis for nonparametric estimation and other statistics.
Trends in extreme precipitation events (SW Hungary) based on a high-density monitoring network
Authors: Schmeller Gabriella , Nagy Gábor , Sarkadi Noémi , Cséplő Anikó , Pirkhoffer Ervin , Geresdi István , Balogh Richárd , Ronczyk Levente , Czigány Szabolcs
Published: September 2022

Climate change is commonly associated with extreme weather phenomena. Extreme weather patterns may bring prolonged drought periods, more intense runoff and increased severity of floods. Rainfall distribution is extremely erratic both in space and time, particularly in areas of rugged topography and heterogeneous land use. Therefore, locating major rainfall events and predicting their hydrological consequences is challenging. Hence, our study aimed at exploring the spatial and temporal patterns of daily rainfall totals of R ≥ 20 mm, R ≥ 30 mm and R ≥ 40 mm (extreme precipitation events, EPE) in Pécs (SW Hungary) by a hydrometeorological network (PHN) of 10 weather stations and the gridded database of the Hungarian Meteorological Service (OMSZ). Our results revealed that (a) OMSZ datasets indicated increasing frequencies of EPEs for the period of 1971–2020 in Pécs, (b) the OMSZ dataset generally underestimated EPE frequencies, particularly for R ≥ 40 mm EPEs, for the period of 2013 to 2020, and (c) PHN indicated a slight orographic effect, demonstrating spatial differences of EPEs between the two datasets both annually and seasonally for 2013–2020. Our results pointed out the adequacy of interpolated datasets for mesoscale detection of EPE distribution. However, topographically representative monitoring networks provide more detailed microscale data for the hydrological management of urban areas. Data from dense rain-gauge networks may complement interpolated datasets, facilitating complex environmental management actions and precautionary measures, particularly during weather-related calamities.
Age-group-based evaluation of residents’ urban green space provision: Szeged, Hungary. A case study
Authors: Kolcsár Ronald András , Csete Ákos K. , Kovács-Győri Anna , Szilassi Péter
Published: September 2022

Analysis of urban green space (UGS) provision is becoming increasingly important from an urban-planning perspective, as processes related to climate change tend to worsen the urban heat-island effect. In the present study, we aimed to map the UGS provision of Szeged, Hungary, using a GIS-based complex approach. Different age groups, especially the elderly, have different demands on the ecosystem services and infrastructure of UGSs. To provide an in-depth assessment of UGS provision for planners, we analysed the UGS availability and accessibility, using subblock-level population data, which includes not only the total number of residents but also provides information about the age-group distribution for each building of the city. We delineated areas having different UGS provision levels (called provision zones) and assessed the age distribution of the residents living in each zone. We found that the residents within 2-min walking distance to public green spaces are older than expected by comparison to the age distribution of Szeged. In provision zones with abundant locally available UGSs (measured as UGS per capita within 50-m buffers), we found that the youngest (0–18 years) and oldest (≥ 61 years) inhabitants are overrepresented age groups, while the age group 19–40 has the lowest overall UGS provision within the city of Szeged. Our research, which has the potential to be adapted to other settlements, contributes to the identification of UGS-deficit areas in a city, thereby providing essential information for urban planners about where increases in UGS are most needed and helping to assess infrastructural enhancements that would be adequate for the locally most-dominant age groups.
A Rare Case of a Primary Cardiac Tumor Presenting as Fatal Ventricular Tachycardia
Authors: Wang Xiaomei , Guo Xueya
Published: September 2022

Primary cardiac tumors are extremely uncommon. Here, we report the case of a patient with a primary left ventricular interstitial tumor presenting with hemodynamically unstable ventricular tachycardia. In response to hemodynamically unstable ventricular tachycardia, an implantable cardioverter-defibrillator was inserted. One month after defibrillator implantation, the patient developed episodes of high ventricular tachycardia that could not be effectively terminated by catheter radiofrequency ablation, thus further confirming that the ventricular tachycardia was induced by the left ventricular interstitial tumor. The patient is doing well on medical therapy to date.
Comparative design and performance of surface water irrigation pumps for smallholder farmers in South and Southeast Asia
Authors: Sanghirun Witthawat , Asvapoositkul Wanchai
Published: September 2022

An experimental study on the performance of various Thai irrigation pump impellers and a newly design conical hollow-shaped impeller was investigated. They were tested experimentally. The design pump based on a similar theory was developed. The objectives of this experiment were to provide data for comparison of Thai irrigation pump impellers, to evaluate, and to improve the current design of Thai irrigation pumps in a cost-effective and energy-efficient manner. The efficiency and design variables of Thai irrigation pump impellers were presented as a function of dimensionless specific speed in the range, 2.1 < Ns < 4.1. The geometric and design variables as functions of the specific speed and the specific diameter or Cordier diagram presented in this paper could be used as a practical design guide for Thai irrigation pump impellers. This is a preliminary design phase of Thai irrigation pump impellers and the result from this study is intended to make a modest contribution. However, they are facing new challenges that require pump performance improvement and innovative design.
Creative Problem Solving (CPS) Learning to Improve Ability an Strudent’s Critical and Creative Thinking on Science Materials
Authors: Fahrisa Nur , Parmin Parmin
Published: September 2022

This study aims to determine the effectiveness of using the CPS (Creative Problem Solving) learning model to improve students' critical and creative thinking skills. This research is an experimental study using a quasi-experimental research design with a non-equivalent control group design. The sampling technique used purposive sampling and obtained class VIII A and VIII F. Improving students' critical thinking skills based on T-Test test data pretest and posttest were 4.01 in the control class and 10.29 in the experimental class, both of which were higher than the Ttable, which was 1.99. Improving students' creative thinking skills based on the STUDENT WORKSHEET T-Test Test of 5.035 in the control class and 10,041 in the experimental class, and the T-Test mind mapping of 6,428 in the control class and 6,240 in the experimental class. From the test results, it was found that H0 was rejected so that there was an increase in students' critical and creative thinking skills. Thus, the application of the CPS (Creative Problem Solving) model on the Science material is effectively used to improve students' critical and creative thinking skills.
Preparation and Characterization of Edible Straw Made from Dragon Fruit Peel to Solve The Problem of Plastic Waste
Authors: Darmawan Melissa Salma , Daeni Fitri , Kurniawan Tessa Surya , Listiaji Prasetyo
Published: September 2022

Plastic waste is a global environmental problem that is being faced by the world, especially Indonesia. In addition, Indonesia is ranked 4th in producing plastic straw waste. This problem needs to be taken seriously because the waste generated through plastic straws is difficult to recycle. One effort that can be done is to replace plastic straws with edible straws. Red dragon fruit peel contains nutrients such as carbohydrates, fat, protein, and dietary fiber but is often only thrown away and considered as waste. This study aims to utilize dragon fruit peel as a basic material for making edible straws and to analyze the characteristics of edible straws. The study used quantitative experimental methods by testing temperature resistance and water absorption. The results showed that edible straw has good temperature resistance at a temperature of 10℃-20℃, where at that temperature there is an increase in mass of about 2-3 grams. As for water absorption, a good temperature range is 20℃-80℃ where absorption occurs between 0.38%-7.46%.
Polyurethane foams from liquefied Eucalyptus globulus branches
Authors: Domingos Idalina J. , Fernandes Ana P. , Ferreira José , Cruz-Lopes Luísa , Esteves Bruno M.
Published: September 2022

Currently, polyurethane (PU) production is completely dependent upon fossil oil, as the two primary reagents necessary for PU production, polyol and isocyanate, are derived from fossil fuels. Eucalyptus branches are waste products for most forest management companies. In this work, polyols obtained by the liquefaction of eucalyptus branches were used for foam production. The influence of the isocyanate, catalyst, surfactant, and blowing agent contents on the foam properties was studied. Overall the amount of each chemical used in the production of PU foams had a noticeable effect on the density and compressive properties. The amount of water (blowing agent) had the strongest effect and decreased the density and compressive properties because of higher foam expansion. The other chemicals increased or decreased the density and compressive stress depending on the amount used. The density of the produced foams ranged from 36 kg/m3 to 108 kg/m3, the compressive stress ranged from 15 kPa to 149 kPa, and the Young’s modulus ranged from 64 kPa to 2100 kPa. The results showed that it is possible to convert these forest residues into PU foams with properties somewhat similar to those of commercial foams, although with a lower compressive strength.
The effect of mechano-enzymatic treatment on the characteristics of cellulose nanofiber obtained from kenaf (Hibiscus cannabinus L.) bark
Authors: Narkpiban Koranat , Sakdaronnarong Chularat , Nimchua Thidarat , Pinmanee Phitsanu , Thongkred Paweena , Poonsawat Thitivara
Published: September 2022

Cellulose nanofiber (CNF) was successfully isolated from kenaf bark by microfluidization at 20,000 psi for 40 passes. The combination of hydrothermal process and xylanase treatment prior to CNF isolation led to effective cellulose purification. The fiber used for enzymatic pretreatment for CNF isolation had an 85.9% whiteness index and 85.1% cellulose content. The crystallinity of the cellulose extracted from the kenaf bark continued to increase with successive treatments, as indicated by X-ray diffraction analysis. In addition, the enzyme-treated fiber showed increased thermal stability, as shown by thermogravimetric analysis. After CNF isolation, morphological characterization of the CNF was performed via field emission-scanning electron microscopy and transmission electron microscopy. The CNF had an average diameter that ranged from 5 to 10 nm and no undesired elemental contamination, as evidenced by energy dispersive X-ray spectroscopy. The mechano-enzymatic treatments used in this work to obtain CNF were judged to be a promising technique for the fabrication of biomedical and other high-value materials.
The History of the Latin-graphic Book of Psalms in the Church Slavonic Language from Norov´s Book Collection
Authors: Celunova Jelena
Published: September 2022

This article is devoted to the research of the History of the Book of Psalms manuscript from A.S.Norovʼs book collection stored in the Department of manuscripts of the Russian State Library. The manuscript was written at the beginning of the 18th century in Church Slavonic language Polish letters by two nuns from the East Slavic region of the Polish-Lithuanian Commonwealth who moved to Russia at that time. Very few such texts have survived, and almost all of them were created in the Polish-Lithuanian Commonwealth. Records by the owners of the manuscript indicate that the manuscript was found at the estate of Prince Andrei Dolgorukov near Moscow — in the village of Bogorodskoye located in the immediate vicinity of the Moscow Ascension maiden Monastery. It is suggested that the creator of the manuscript could be a village nun of this monastery who lived in the village of Bogorodskoye. The article analyzes indirect information about the authors of the manuscript and draws a conclusion about their use of certain symbols characteristic of the cultural and theological environment of the Polish-Lithuanian Commonwealth.
Configuración de la violencia intrafamiliar como problemática sanitaria en la Revista Colombiana de Psiquiatría (1964-1996)
Authors: Ramírez-Cuervo Geraldine , Urrego Mendoza Zulma Consuelo
Published: September 2022

Objetivo Identificar el modo en que se configuró la violencia intrafamiliar como problema sanitario para la psiquiatría colombiana entre 1964 y 1996. Materiales y Métodos Investigación con enfoque histórico que exploró acervos documentales de la Revista Colombiana de Psiquiatría en el período estudiado. Se identificaron 33 artículos relevantes que fueron analizados buscando el modo en que la violencia intrafamiliar se fue constituyendo un problema de interés para el abordaje en salud mental en Colombia. Resultados La visión de los académicos de la época permite comprender la relación constante y circular entre las categorías violencia social y familia, estableciendo una primacía para abordar la violencia intrafamiliar que refleja el interés por la salud mental y las dinámicas que se desarrollan en la familia en reflejo del contexto. Discusión Se obtiene una perspectiva de la familia y la sociedad colombiana en la segunda mitad del siglo XX en relación con la configuración problemática progresiva de la violencia intrafamiliar como asunto a tratar desde la psiquiatría.
La salud pública en Colombia (1991-2021). Promoción de la salud y prevención: una revisión
Authors: Franco-Giraldo Álvaro
Published: September 2022

Objetivo Este artículo se propone realizar un balance de la promoción de la salud durante el desempeño del sistema de salud, a partir de la reforma constitucional de 1991. Métodos Se parte de una revisión temática, en bases de datos de PubMed, SciELO, Google Scholar, a través de los términos y operadores booleanos (“promoción de la salud” or “prevención”) and (“Colombia”), en los últimos 10 años (2011-2021); y la legislación sobre promoción de la salud de los últimos 30 años en Colombia, seleccionando la más relevante. Discusión Se analiza la trayectoria regulatoria de la salud pública, derivada de la Ley 100 de 1993, destacando la confusión que entre promoción y prevención se dio en el sistema. Se discuten varias fases de desarrollo de la salud pública en este período, con grandes falencias en la primera década de la reforma, mejorando después del 2005, pero sin lograr su cometido, dadas las contradicciones con el modelo de mercado que rige el sistema. No se logran desarrollar los niveles colectivos y comunitarios de la promoción de la salud, como tampoco la perspectiva estratégica de la atención primaria en salud (APS). Conclusión La promoción de la salud y la prevención no lograron ser desarrolladas de manera cabal en Colombia, a pesar del entorno internacional proclive a su implementación mediante la atención primaria en salud. Muchos de los postulados teóricos de la legislación se han quedado en la retórica y pendientes de aplicación, muy a pesar del amplio marco regulatorio que se dio en estos treinta años.
Factores asociados al reingreso hospitalario en pacientes con trastorno bipolar, Valle del Cauca-Colombia
Authors: Casas López Andrea C. , Rangel Quintero María A. , Mora Diana. M. , Hernández Carrillo Mauricio , Miranda Bastidas Carlos A.
Published: September 2022

Objetivo Identificar factores asociados con el reingreso hospitalario en pacientes con trastorno bipolar (TB) en un hospital psiquiátrico y desarrollar un modelo explicativo del riesgo de reingreso.
Método Estudio observacional longitudinal retrospectivo a partir de base de datos secundaria aportada por el Hospital Psiquiátrico Departamental Universitario del Valle. Estadística: análisis de supervivencia utilizando un modelo de regresión Cox. Se definió como variable dependiente el riesgo de reingreso y como variables independientes algunas sociodemográficas y clínicas.
Resultados Se obtuvo una asociación estadísticamente significativa entre el riesgo de reingreso y las variables: falta de red de apoyo al no tener acudiente HR=1,33 [IC 95% 1,02-1,72; (p=0,034)] y falta de adherencia al tratamiento HR=2,33 [IC 95% 1,87-2,90; (p=0,000)].
Conclusión Para disminuir el reingreso hospitalario por TB, se deben priorizar las intervenciones en los casos de pacientes que no tengan acudiente y haya inadecuada adherencia al tratamiento; esta última, a partir de la percepción por parte del médico especialista. Enfocarse sobre estos dos factores puede incidir sobre los reingresos.
Self-Assessment of Pedagogical Abilities in the Professional Training of Elementary School Teachers
Authors: Mazilov Vladimir A. , Kudenko Irina A.
Published: September 2022

Introduction. The article analyzes the development of self-esteem of the pedagogical abilities of students – future primary school teachers. The relevance of the study is determined by the ambiguity of modern data on the nature of the influence of self-esteem on the professional training of teachers and the need to manage the development of the personality and activities of the future teacher in the context of the introduction of updated educational standards. The purpose of the article is to establish the psychological features of the development of self-esteem of the pedagogical abilities of students, as well as the nature of its connection with the motivation for learning and the reflection of educational and professional activities.
Materials and Methods. The study sample consisted of 1st–4th year undergraduate students of the Pedagogical University studying in the field of “Primary Education” (n = 104). In order to study the psychological characteristics of self-esteem of pedagogical abilities, motivation for learning and reflection of activity, self-assessment scales and standardized questionnaires were used. Processing of the results was carried out by methods of primary descriptive statistics, methods of comparison and correlation analysis.
Results. The dynamics of changes in the perceptions of students - future primary school teachers about the correspondence of their abilities to the teaching profession is analyzed. The role of self-esteem of abilities in the development of learning motivation at the university and reflection of educational and professional activities is shown. It has been established that a high self-esteem of pedagogical abilities has a negative impact on adaptation to study at a university and the adoption of new means and methods of educational and professional activities for a school graduate. The psychological mechanism for launching the development of a professional educational program is the realization of the discrepancy between the developed methods of educational activity and the requirements of the university.
Discussion and Conclusion. The results of the study contribute to pedagogical psychology, the psychology of the teacher’s work and his professional training. The conclusions and generalizations presented in the article make it possible to improve not only the process of professional pedagogical education, but also the system of psychological and pedagogical support for the development of students – future primary school teachers.
The Influence of Stakeholders on the Environmental Investment of Companies in the Arctic Zone of the Russian Federation
Authors: Karginova-Gubinova Valentina V.
Published: September 2022

Introduction. The need to transition towards sustainable development of companies in the Arctic regions of Russia and their low level of investment in environmental protection make it relevant to study the factors determining the volume of environmental investment. The purpose of the study has been to analyze the impact of certain groups of financial stakeholders on the level of environmental investments of the company.

Materials and Methods. The methodology of the work is based on the theory of stakeholders. The indicators of investment activity of companies in the north-western Arctic regions of Russia were considered, methods of descriptive statistics were used, hierarchical cluster and discriminant analyses were carried out.

Results. The results of the study showed that the companies of the studied territory are characterized by a low volume of environmental investments, but it is higher than the national average. The direction and strength of the influence of individual stakeholders on investing in environmental protection is differentiated by environmental areas. At the same time, all the identified groups of stakeholders have a positive, albeit different, impact on the level of investment in environmental protection in all areas in the aggregate. To the greatest extent, the current volume of environmental investments is because of the interests of corporate creditors and federal authorities, to the least – owners, especially foreign ones.

Discussion and Conclusion. Considering the results obtained, recommendations are given to increase the current level of environmental investment activity of companies. The theoretical significance of the work is determined by clarifying the theory of stakeholders and the concept of green finance. The practical significance lies in obtaining possibility to develop targeted measures to support interested investors and increase the orientation of other persons to environmental protection.
Az orvostanhallgatók mentális egészségét kedvezőtlenül befolyásoló tényezők és a beavatkozások lehetséges pontjai hallgatói szemszögből
Authors: Oláh Barnabás , Rádi Bence Márk , Kósa Karolina
Published: September 2022

Elméleti háttér: Az orvostanhallgatók kedvezőtlen mentális egészségi állapotára kutatások széle köre mutat rá világszerte. A háttérben álló tényezők és a szükséges beavatkozások megismerése azonban már kevesebb vizsgálatnak került a fókuszába, és különösen kevés a kvalitatív módszert alkalmazó kutatás. Célkitűzés: A Debreceni Egyetem magyar és angol nyelvű orvosképzésében részt vevő hallgatók mentális egészségét kedvezőtlenül befolyásoló egyetemi és egyéni szinten megjelenő tényezők azonosítása, a hallgatók által javasolt beavatkozások megismerése. Módszerek: 26 fő (13 magyar és 13 angol nyelven tanuló), I–VI. éves orvostanhallgatóval készítettünk fókuszcsoportos interjúkat, amelyeket hang-felvételen rögzítettünk. Az interjúk átírását követően az összesen 46 874 szószám terjedelmű anyagon tartalomelemzést végeztünk az NVivo szoftver segítségével, azt manuálisan ellenőrizve. Eredmények: Legfőbb stresszorokként a tananyag mennyiségét, a vizsgáztatás sajátosságait (tisztázatlan követelmények, vizsgáztatói szubjektivitás, észlelt igazságtalanság), az oktatási segédanyagok, valamint a gyakorlati képzés hiányosságait, illetve az egyetemen belüli információáramlás problémáit fogalmazták meg a hallgatók. A magyarok körében kiemelt stresszforrásként jelent meg az évismétlés és az önköltséges képzési formába való átsorolás veszélye. A tananyag nagy mennyisége miatt a hallgatók tanulásmódszertani, időbeosztási készségek fejlesztését célzó intervenciókat szeretnének, továbbá igényük lenne a stresszkezelési és kudarctűrési képességük fejlesztését célzó segítségre is. Sokak szakmai jövőképe bizonytalan, amelyet a hatékony karrier-tanácsadás tudna enyhíteni. Következtetés: Az orvostanhallgatók mentális egészségére számos szervezeti és egyéni tényező jelent kockázatot, amelyeket az egyetem elsősorban rendszerszintű beavatkozásokkal tudna csökkenteni.
Spanning Tree Protocol (STP) Based Computer Network Performance Analysis on BPDU Config Attacks and Take Over Root Bridge Using the Linear Regression Method
Authors: Indrianingsih Yuliani , Wintolo Hero , Saputri Eviana Yulianti
Published: September 2022

Spanning Tree Protocol (STP) is used in manageable switch devices that apply more than one path to the connection between switches. This study aims to assist engineer staff in improving STP network security. Furthermore, the benefit is to improve the STP network security system by using the Spanning Tree Protocol and Virtual Local Area Network (VLAN) trunking mitigation techniques. The results of testing data before STP is attacked, after STP attacked, and anticipatory data. Then a simple linear regression analysis is carried out by the result of that there is not a significant relationship between time and size in the DoS attack, which Â 48.6% of the time variable is influenced by the size of Â variable, while Â the remaining 51.4% by other variables. Root attack is 43.8%-time variable is influenced by size variable, the remaining 56.2% by other variables. Correlation between Karl Pearson DoS and root, there is a significant relationship between time and size, with the DoS correlation coefficient (-0.697) in contrast root (-0.662), and paired sample t-test (paired sample t-test) can be concluded the anticipation which is done by using BPDU guard and root guard mitigation.