bluuebunny/crossref_metadata_2025 huggingface dataset:
Evolutionary force billiards
Authors: Fomenko Anatoly Timofeevich , Vedyushkina Viktoriya Viktorovna
Published: May 2023

A new class of integrable billiards has been introduced: evolutionary force billiards. They depend on a parameter and change their topology as energy (time) increases. It has been proved that they realize some important integrable systems with two degrees of freedom on the entire symplectic four-dimensional phase manifold at a time, rather than on only individual isoenergy 3-surfaces. For instance, this occurs in the Euler and Lagrange cases. It has also been proved that these two well-known systems are "billiard-equivalent", despite the fact that the former one is square integrable, and the latter one allows a linear integral.
Strong convergence of attractors of reaction-diffusion system with rapidly oscillating
terms in an orthotropic porous medium
Authors: Bekmaganbetov Kuanysh Abdrakhmanovich , Chepyzhov Vladimir Victorovich , Chechkin Gregory Aleksandrovich
Published: May 2023

A system of reaction-diffusion equations in a perforated domain with rapidly
oscillating terms in the equations and in the boundary conditions is
considered. It is
not assumed
that the uniqueness theorem conditions
are satisfied
for the corresponding initial-boundary value problem. We have proved
the strong convergence of the trajectory attractors of this system to the
trajectory attractors of the homogenized reaction-diffusion system with a ‘strange term’ (potential).
One class of quasilinear elliptic type equations with discontinuous nonlinearities
Authors: Pavlenko Vyacheslav Nikolaevich , Potapov Dmitriy Konstantinovich
Published: May 2023

In a bounded domain $\Omega\subset \mathbb{R}^n$, a class of quasilinear elliptic type boundary problems with parameter and
discontinuous nonlinearity is studied.
This class of problems includes the H. J. Kuiper conductor heating problem in a homogeneous electric field.
The topological method is applied to verify the existence of a continuum of generalized positive solutions
from the Sobolev space $W_p^2(\Omega)$ ($p>n$) connecting $(0,0)$ with $\infty$
in the space $\mathbb R\times C^{1,\alpha}(\overline\Omega)$, $\alpha\in (0,(p-n)/p)$. A sufficient condition
for semiregularity of generalized solutions of this problem is given.
The constraints on the discontinuous nonlinearity
are relaxed in comparison with those used by H. J. Kuiper and K. C. Chang.
Gelfand-Kirillov dimensions of simple modules over twisted group algebras $k \ast A$
Authors: Gupta Ashish , Arunachalam Umamaheswaran
Published: May 2023

For the $n$-dimensional multi-parameter quantum torus algebra $\Lambda_{\mathfrak q}$ over a field $k$ defined by a multiplicatively
antisymmetric matrix $\mathfrak q = (q_{ij})$ we show that, in the case when
the torsion-free rank of the subgroup of $k^\times$ generated by the $q_{ij}$
is large enough, there is a characteristic set of values (possibly with gaps)
from $0$ to $n$ that can occur as the Gelfand-Kirillov dimensions of simple
modules. The special case when $\mathrm{K}.\dim(\Lambda_{\mathfrak q}) = n - 1$
and $\Lambda_{\mathfrak q}$ is simple, studied in A. Gupta,
$\mathrm{GK}$-dimensions of simple modules over $K[X^{\pm 1},
\sigma]$, Comm. Algebra, 41(7) (2013), 2593-2597, is considered without
assuming the simplicity, and it is shown that a dichotomy still holds for the
GK dimension of simple modules.
On classification of Morse-Smale flows on projective-like manifolds
Authors: Grines Vyacheslav Zigmuntovich , Gurevich Elena Yakovlevna
Published: May 2023

In this paper, the problem of topological classification of gradient-like flows without heteroclinic intersections, given on a four-dimensional projective-like manifold, is solved. We show that a complete topological invariant for such flows is a bi-color graph that describes the mutual arrangement of closures of three-dimensional invariant manifolds of saddle equilibrium states. The problem of construction of a canonical representative in each topological equivalence class is solved.
On summable solutions of a class of nonlinear integral equations on the whole line
Authors: Khachatryan Khachatur Aghavardovich , Petrosyan Haykanush Samvelovna
Published: May 2023

In this paper, we study a class of nonlinear integral equations
with a noncompact monotone Hammerstein-Nemytskii operator on
the whole real line. This class of equations is widely used
in various fields of natural science. In particular, such equations
arise in mathematical biology and in the theory of radiative transfer.
A constructive existence theorem for a nonnegative
nontrivial summable and bounded solution is proved. We also study the asymptotic behavior of the solution at $\pm\infty$. At the end of the paper,
specific examples of the indicated equations are given, that satisfy all the
conditions of the proved existence theorem. In an important particular case, it is possible to prove a uniqueness theorem in a certain
class of essentially bounded functions.
Estimates for the
integrals of derivatives of rational functions in multiply connected
domains in the plane
Authors: Baranov Anton Dmitrievich , Kayumov Ilgiz Rifatovich
Published: May 2023

We obtain estimates for the
integrals of derivatives of rational functions in
multiply connected domains in the plane.
A sharp order of
growth is found for the integral of the modulus of the
derivative of a finite Blaschke product in the unit disc.
We also extend the results of
Dolzhenko about the integrals of the
derivatives of rational functions to a wider class of domains, namely, to
domains bounded by rectifiable curves without zero interior angles, and show
the sharpness of the results obtained.
Completeness of asymmetric products of harmonic functions and uniqueness of the solution
to the Lavrent'ev equation in inverse wave sounding problems
Authors: Kokurin Mikhail Yur'evich
Published: May 2023

We prove that the family of all pairwise products of regular
harmonic functions in a domain $D \subset \mathbb{R}^3$ and
Newtonian potentials of points located on a ray outside $D$ is complete in $L_2(D)$.
This result is used for justification of uniqueness of a solution to the linear integral equation
to which inverse problems of wave sounding in $\mathbb{R}^3$ are reduced.
The corresponding inverse problems are shown to be uniquely solvable in spatially non-overdetermined settings where
the dimension of the spatial data support coincides with that of the support of the sought-for function.
Uniqueness theorems are used for establishing
that the axial symmetry of the input data for the inverse problems
under consideration implies that of the solutions to these problems.
Uniqueness sets of positive measure for the trigonometric system
Authors: Plotnikov Mikhail Gennadevich
Published: May 2023

There exists a family $\mathcal{B}$ of one-to-one mappings $B \colon \mathbb{Z}\to\mathbb{Z}$
satisfying the condition $B(-n) \equiv -B(n)$ such that for each $B \in \mathcal{B}$
there exists a perfect uniqueness set
of positive measure for the $B$-rearranged trigonometric system
$\{\exp(iB(n)x)\}$. For a certain wider class of rearrangements of the
trigonometric system, the strengthened assertion holds from the Stechkin-Ul'yanov
conjecture.
On the Karatsuba divisor problem
Authors: Iudelevich Vitalii Victorovich
Published: May 2023

We obtain an upper bound for the sum $$\Phi_a(x) = \sum_{p\leqslant x}\frac{1}{\tau(p+a)},$$ where $\tau(n)$ is the divisor function, $a\geqslant 1$ is a fixed integer, and $p$ runs through primes up to $x$.
When is the search of relatively maximal subgroups reduced to quotient groups?
Authors: Guo Wen Bin , Revin Danila Olegovich
Published: May 2023

Let $\mathfrak{X}$ be a class finite groups closed under taking subgroups, homomorphic images, and extensions, and
let $\mathrm{k}_{\mathfrak{X}}(G)$ be the number of conjugacy classes $\mathfrak{X}$-maximal subgroups of a finite group $G$.
The natural problem calling for a description, up to conjugacy, of
the $\mathfrak{X}$-maximal subgroups of a given finite group is not inductive.
In particular, generally speaking, the image of an $\mathfrak{X}$-maximal
subgroup is not $\mathfrak{X}$-maximal in the image of a homomorphism.
Nevertheless, there exist group homomorphisms that preserve the number of conjugacy classes of maximal
$\mathfrak{X}$-subgroups (for example, the homomorphisms whose kernels are $\mathfrak{X}$-groups).
Under such homomorphisms, the image of an $\mathfrak{X}$-maximal subgroup is always $\mathfrak{X}$-maximal,
and, moreover, there is a natural bijection between the conjugacy classes
of $\mathfrak{X}$-maximal subgroups of the image and preimage.
In the present paper, all such homomorphisms are
completely described.
More precisely, it is shown that, for a homomorphism $\phi$
from a group $G$,
the equality $\mathrm{k}_{\mathfrak{X}}(G)=\mathrm{k}_{\mathfrak{X}}(\operatorname{im} \phi)$
holds if and only if $\mathrm{k}_{\mathfrak{X}}(\ker \phi)=1$,
which in turn is equivalent to the fact that the composition factors of the kernel of
$\phi$ lie in an explicitly given list.
Topological classification of flows without heteroclinic intersections on a connected sum of manifolds $\mathbb{S}^{n-1}\times\mathbb{S}^{1}$
Authors: Grines Vyacheslav Zigmuntovich , Gurevich Elena Yakovlevna
Published: May 2023

In this paper, we announce a result on the possibility of obtaining sufficient conditions for topological conjugacy of gradient-like flows without heteroclinic intersections, given on a connected sum of products $S^{n-1}\times S^1$ in combinatorial terms.
Schubert calculus and intersection theory of flag manifolds
Authors: Duan Haibao , Zhao Xuezhi
Published: May 2023

Hilbert's 15th problem called for a rigorous foundation of Schubert calculus, of which a long-standing and challenging part is the Schubert problem of characteristics. In the course of securing a foundation for algebraic geometry, Van der Waerden and Weil attributed this problem to the intersection theory of flag manifolds.
This article surveys the background, content, and solution of the problem of characteristics. Our main results are a unified formula for the characteristics and a systematic description of the intersection rings of flag manifolds. We illustrate the effectiveness of the formula and the algorithm by explicit examples.
Bibliography: 71 titles.
The finite-gap method and the periodic Cauchy problem for $(2+1)$-dimensional anomalous waves for the focusing Davey-Stewartson $2$ equation
Authors: Grinevich Petr Georgievich , Santini Paolo Maria
Published: May 2023

The focusing nonlinear Schrödinger equation is the simplest universal model describing the modulation instability of $(1+1)$-dimensional quasi monochromatic waves in weakly nonlinear media, and modulation instability is considered to be the main physical mechanism for the appearance of anomalous (rogue) waves in nature. By analogy with the recently developed analytic theory of periodic anomalous waves of the focusing nonlinear Schrödinger equation, in this paper we extend these results to a $(2+1)$-dimensional context, concentrating on the focusing Davey-Stewartson $2$ equation, an integrable $(2+1)$-dimensional generalization of the focusing nonlinear Schrödinger equation. More precisely, we use the finite gap theory to solve, to the leading order, the doubly periodic Cauchy problem for the focusing Davey-Stewartson $2$ equation, for small initial perturbations of the unstable background solution, which we call the doubly periodic Cauchy problem for anomalous waves. As in the case of the nonlinear Schrödinger equation, we show that, to the leading order, the solution of this Cauchy problem is expressed in terms of elementary functions of the initial data.
Bibliography: 86 titles.
Hodge level of weighted complete intersections of general type
Authors: Przyjalkowski Victor Vladimirovich
Published: May 2023

We show that smooth varieties of general type that are well-formed weighted complete intersections of Cartier divisors have the maximal Hodge level, that is, their rightmost middle Hodge numbers do not vanish. We show that this does not hold in the quasi-smooth case.
Bibliography: 23 titles.
Henselian division algebras and reduced unitary Whitehead groups for outer forms of anisotropic algebraic groups of the type $A_n$
Authors: Yanchevskii Vyacheslav Ivanovich
Published: May 2023

Some results on the structure of involutorial (that is, having an involution) Henselian tamely ramified division algebras are obtained. These results are then used to derive formulae for the computation of the reduced unitary Whitehead groups for outer forms of anisotropic algebraic groups of type $A_n$.
Bibliography: 46 titles.
Integrable billiards on a Minkowski hyperboloid: extremal polynomials and topology
Authors: Dragovic Vladimir Il'ich , Gasiorek Sean , Radnovic Milena
Published: May 2023

We consider billiard systems within compact domains bounded by confocal conics on a hyperboloid of one sheet in the Minkowski space. We derive conditions for elliptic periodicity for such billiards. We describe the topology of these billiard systems in terms of Fomenko invariants. Then we provide periodicity conditions in terms of functional Pell equations and related extremal polynomials.
Several examples are computed in terms of elliptic functions and classical Chebyshev and Zolotarev polynomials, as extremal polynomials over one or two intervals. These results are contrasted with the cases of billiards on the Minkowski and Euclidean planes.
Dedicated to R. Baxter on the occasion of his 80th anniversary.
Bibliography: 51 titles.
Inner functions of matrix argument and conjugacy classes in unitary groups
Authors: Neretin Yurii Aleksandrovich
Published: May 2023

Let $\mathrm{B}_n$ denote the set of complex square matrices of order $n$ whose Euclidean operator norms are less than one. Its Shilov boundary is the set $\operatorname{U}(n)$ of all unitary matrices. A holomorphic map $\mathrm{B}_m\to\mathrm{B}_n$ is inner if it sends $\operatorname{U}(m)$ to $\operatorname{U}(n)$. On the other hand we consider the group $\operatorname{U}(n+mj)$ and its subgroup $\operatorname{U}(j)$ that is embedded in $\operatorname{U}(n+mj)$ in the block-diagonal way ($m$ blocks $\operatorname{U}(j)$ and a unit block of size $n$). To any conjugacy class of $\operatorname{U}(n+mj)$ with respect to $\operatorname{U}(j)$ we assign a ‘characteristic function’, which is a rational inner map $\mathrm{B}_m\to\mathrm{B}_n$. We show that the class of inner functions that can be obtained as ‘characteristic functions’ is closed with respect to such natural operations as pointwise direct sums, pointwise products, compositions, substitutions into finite-dimensional representations of general linear groups and so on. We also describe explicitly the corresponding operations on conjugacy classes.
Bibliography: 24 titles.
The Hartogs extension phenomenon in almost homogeneous algebraic varieties
Authors: Feklistov Sergei Viktorovich
Published: May 2023

We study the Hartogs extension phenomenon in noncompact almost homogeneous algebraic varieties, and we prove a cohomological and a weight criterion for the Hartogs phenomenon. In the case of spherical varieties we prove a criterion for the Hartogs phenomenon in terms of coloured fans.
Bibliography: 28 titles.
Формы поверхностей дель Пеццо степеней $5$ и $6$
Authors: Zaitsev Alexandr Vladimirovich
Published: May 2023

В этой работе получено необходимое и достаточное условие для существования поверхностей дель Пеццо степеней 5 и 6 над полем $K$ с заданным действием абсолютной группы Галуа $\operatorname{Gal} ( K^{\mathrm{sep}}/K )$ на графе $(-1)$-кривых. Также вычислены группы автоморфизмов поверхностей дель Пеццо степени 5 над произвольными полями.
Библиография: 19 названий.
Proper cyclic symmetries of multidimensional continued fractions
Authors: Tlyustangelov Ibragim Aslanovich
Published: May 2023

We show that palindromic continued fractions exist in an arbitrary dimension. For dimension $n=4$ we also prove a criterion for an algebraic continued fraction to have a proper cyclic palindromic symmetry. Klein polyhedra are considered as multidimensional generalizations of continued fractions.
Bibliography: 11 titles.
Counting lattice triangulations: Fredholm equations in combinatorics
Authors: Orevkov Stepan Yur'evich
Published: May 2023

Let $f(m,n)$ be the number of primitive lattice triangulations of an $m\times n$ rectangle. We compute the limits $\lim_n f(m,n)^{1/n}$ for $m=2,3$. For $m=2$ we obtain the exact value of the limit, which is $(611+\sqrt{73})/36$. For $m=3$ we express the limit in terms of a certain Fredholm integral equation for generating functions. This provides a polynomial-time algorithm (with respect to the number of computed digits) for the computation of the limit with any prescribed precision.
Bibliography: 13 titles.
Isometric embeddings of bounded metric spaces in the Gromov-Hausdorff class
Authors: Ivanov Alexandr Olegovich , Tuzhilin Alexey Avgustinovich
Published: May 2023

We show that any bounded metric space can be embedded isometrically in the Gromov-Hausdorff metric class $\operatorname{\mathcal{GH}}$. This is a consequence of the description of the local geometry of $\operatorname{\mathcal{GH}}$ in a sufficiently small neighbourhood of a generic metric space, which is of independent interest. We use the techniques of optimal correspondences and their distortions.
Bibliography: 22 titles.
Conformality in the sense of Gromov and holomorphy
Authors: Zorich Vladimir Antonovich
Published: May 2023

We consider a mapping $w=f(z_1, …,z_n) $ that is conformal in the sense of Gromov and indicate a criterion for it to be holomorphic.
Bibliography: 5 titles.
Finite groups of bimeromorphic self-maps of nonuniruled Kähler threefolds
Authors: Prokhorov Yuri Gennadievich , Shramov Constantin Aleksandrovich
Published: May 2023

We prove the Jordan property for groups of bimeromorphic self-maps of three-dimensional compact Kähler varieties of nonnegative Kodaira dimension and positive irregularity.
Bibliography: 32 titles.
A generalization of the discrete Rodrigues formula for Meixner polynomials
Authors: Sorokin Vladimir Nikolaevich
Published: May 2023

A generalization of Meixner polynomials leading to a new construction of Apéry approximations is put forward. The limiting distribution of the zeros of scaled polynomials is described in terms of algebraic functions. The resulting distribution is shown to be a solution of some vector equilibrium problem in the theory of logarithmic potential.
Bibliography: 21 titles.
Realization of geodesic flows with a linear first integral by billiards with slipping
Authors: Vedyushkina Viktoriya Viktorovna , Zav'yalov Vladimir Nikolaevich
Published: May 2023

An arbitrary geodesic flow on the projective plane or Klein bottle with an additional, linear in the momentum, first integral is modelled using billiards with slipping on table complexes. The requisite table of a circular topological billiard with slipping is constructed algorithmically. Furthermore, linear integrals of geodesic flows can be reduced to the same canonical integral of a circular planar billiard.
Bibliography: 36 titles.
О мультипликативном процессе Чанг-Диакониса-Грэма
Authors: Shkredov Ilya Dmitrievich
Published: May 2023

Изучается ленивая цепь Маркова на $\mathbb {F}_p$, заданная формулой $X_{n+1}=X_n$ с вероятностью $1/2$ и в противном случае $X_{n+1}=f(X_n) \cdot \varepsilon_{n+1}$, где случайные величины $\varepsilon_n$ равномерно распределены на $\{\gamma, \gamma^{-1}\}$. Здесь $\gamma$ - первообразный корень и функция $f(x)=x/(x-1)$ или же $f(x)=\mathrm{ind} (x)$. Показано, что время перемешивания такой цепи $X_n$ есть $\exp(O(\log p \cdot \log \log \log p/ \log \log p))$. Также мы получаем приложение разработанной техники к одному аддитивно-комбинаторному вопросу о множествах Сидоновского типа.
Библиография: 34 названия.
Prevalence and Risk Factors for Mycobacterium tuberculosis Infection among Health Workers in HIV Treatment Centers in North Central, Nigeria
Authors: Okpokoro Evaezi , Lesosky Maia , Osa-Afiana Chinye , Bada Florence , Okwor Uzoamaka , Odonye George , Igbinomwanhia Victoria , Abdurrahman Saddiq , Medugu Nubwa , Kagina Benjamin , Abimiku Alash’le , Adams Shahieda
Published: May 2023

Mycobacterium tuberculosis and HIV constitute a public health challenge. Health workers (HWs) in HIV clinics maybe at greater risk of M. tuberculosis infection, considering the high rates of HIV/tuberculosis (TB) coinfection among patients. Hence, we measured the prevalence of M. tuberculosis infection and the effect of working in an HIV clinic. We conducted a cross-sectional study in high-HIV burden health-care facilities in Abuja and Nasarawa states and recruited HWs over 4 months. We administered questionnaires and screened for M. tuberculosis infection using QuantiFERON-TB Gold-Plus. A total of 1,043 HWs were enrolled, with the majority being clinical staff (77.4%). Prevalence of interferon gamma release assay (IGRA) positivity was 44.8% (43.8% among HWs from HIV clinic and 45.3% from non-HIV clinics, P = 0.24). Nonoccupational factors such as living in a moderately (odds ratio [OR] = 0.71] or sparsely populated neighborhood (OR = 0.56), remained associated with a reduced risk of IGRA positivity, whereas male gender (OR = 1.37) and having high blood pressure (HBP) (OR = 1.52) remained associated with an increased risk after adjusting. Occupational factors such as length of career as a HW of 10 to 20 years (OR = 1.45) or 20 to 30 years (OR = 1.74) remained associated with an increased risk of IGRA positivity after adjusting. In a final multivariate model, the factors of age between 20 to < 30 years (OR = 0.61), having HBP (OR = 1.56), having a length of career as a HW of 10 to 20 years (OR = 1.66) or 20 to 30 years (OR = 2.09) and being a clinical HW (OR = 0.62) remained associated with IGRA positivity. There is a high prevalence of IGRA positivity among HWs in Nigeria. Working in HIV clinics, however, is not associated with increased risk.
Variation in Price of Cardiovascular and Diabetes Medicine in Indonesia, and Relationship with Quality: A Mixed Methods Study in East Java
Authors: Pisani Elizabeth , Dewi Aksari , Palagyi Anna , Praveen Devarsetty , Ihsan Bachtiar Rifai Pratita , Lawuningtyas Hariadini Ayuk , Lyrawati Diana , Sujarwoto  , Maharani Asri , Tampubolon Gindo , Patel Anushka
Published: May 2023

Lower-middle income Indonesia, the world’s fourth most populous country, has struggled to contain costs in its mandatory, single-payer public health insurance system since the system’s inception in 2014. Public procurement policies radically reduced prices of most medicines in public facilities and the wider market. However, professional associations and the press have questioned the quality of these low-cost, unbranded generic medicines. We collected 204 samples of four cardiovascular and one antidiabetic medicines from health facilities and retail outlets in East Java. We collected amlodipine, captopril, furosemide, simvastatin, and glibenclamide, sampling to reflect patients’ likelihood of exposure to specific brands and outlets. We recorded sales prices and maximum retail prices and tested medicines for dissolution and percentage of labeled content using high-performance liquid chromatography. We conducted in-depth interviews with supply chain actors. All samples, including those provided free in public facilities, met quality specifications. Most manufacturers make both branded and unbranded medicines. Retail prices varied widely. The median ratio of price to the lowest price for an equivalent product was 5.1, and a few brands sold for over 100 times the minimum price. Prices also varied between outlets for identical products because retail pharmacies set prices to maximize profit. Because very-low-cost medicines were universally available and of good quality, we believe richer patients who chose to buy branded products effectively protected medicine quality for poorer patients in Indonesia because manufacturers cross-subsidize between branded and unbranded versions of the same medicine.
Is Hip Abductor Muscle Strenghth Related to Functional Capabilities in Patients with Hip Osteoarthritis?
Authors: ŞAHİNOĞLU Dilek , AKSU Burak Çağrı , BEK Nilgün , YAZICIOĞLU Fatma Gül
Published: May 2023

Objective: The aim of this study is to investigate the relationship between hip abductor muscle strength and functionality in individuals with hip osteoarthritis.
Method: Forty-four individuals with end-stage unilateral hip osteoarthritis having a mean age of 63.45±10.50 were included in this study. Oxford hip score (OHS), abductor muscle strength test of both hips, visual analogue scale, and timed up and go test were applied to all individuals.
Results: The correlation analysis revealed a moderate level and statistically significant relation between the muscle strength of the healthy hip and the OHS (r:0.28 p:0.03), pain during activity (r:-0.41 p:0.003), and pain at rest (r:-0.33 p:0.01).
Conclusion: In patients with unilateral hip osteoarthritis, a moderate relationship between healthy hip abductor muscle strength and the OHS and visual analogue scale was found. To increase the functional level of patients with hip osteoarthritis, which is reduced due to pain-related limitations of motion, strengthening the healthy hip is crucial. In addition, the reduction of pain due to hip osteoarthritis is key to achieve functionality.
Maternal Obezitenin Anne-Bebek Sağlığına Etkileri: Sistematik Derleme ve Meta-Analiz
Authors: Kurnaz Döndü , Karaçam Zekiye
Published: May 2023

Amaç: Bu çalışma, birincil çalışmalara dayalı olarak, maternal obezitenin anne-bebek sağlığına etkilerinin belirlemesi amacı ile yapılmıştır.
Yöntem: Sistematik derleme ve meta-analiz niteliğinde olan bu çalışmada, PRISMA kontrol listeleri kullanılmıştır. Çalışma için taramalar Eylül-Ekim 2021 tarihlerinde yapılmış ve Aralık 2022’de güncellenmiştir. Taramalar, PubMed, MEDLINE, theCochrane Library, EBSCO, Web of Science, Ulusal Tez MerkeziveDergiPark arama motorlarından yapılmıştır. Taramalarda obesity* AND (pregnancy*OR “babieshealth” OR “maternalHealth” OR management) kelime ve kelime grupları kullanılmıştır. Araştırmaların metodolojik kalitesi, JoannaBriggsInstitute tarafından geliştirilen “Kritik Değerlendirme Kontrol Listeleri” ile değerlendirilmiştir. Veriler meta-analiz yöntemleri ile sentez edilmiştir.
Bulgular: Çalışmaya 2013-2022 yıllarında yayımlanmış 38araştırma dahil edilmiştir. Araştırmaların toplam örneklem hacmi 784265’tir. Yapılan meta-analizlerde maternal obezitenin istatistiksel olarak anlamlı bir şekilde, gestasyonel diyabet oluşumunu 4.09 kat (z=12.07, p<0.00001), gebelikte hipertansiyonu 4.83 kat (z=11.25, p<0.00001) ve preeklampsiyi ise3.34 kat (z=37.91, p<0,00001) arttırdığı saptanmıştır. Ayrıca maternal obezitenin sezaryen doğum, doğumda indüksiyon kullanımı, bebeğin doğum ağırlığı, preterm doğum, gebelik ayına göre iri bebek, makrozomi ve postpartum kanama gelişme olasılığını istatistiksel olarak anlamlı bir şekilde arttırdığı, spontan vajinal doğum vegebelik ayına göre küçük bebek olasılığını azalttığı saptanmıştır.
Sonuç: Bu çalışmada, maternal obezitenin anne-bebek sağlığı ile ilgili birçok parametrede olumsuz sonuçları olduğu sonucuna ulaşılmıştır. Kadınların gebeliğe normal kilo ile başlamalarının ve gebelik sürecinde maternal obezitenin yönetiminin sağlanması, anne-bebek sağlığının gelişimine katkıda bulunulabilir
O POTENCIAL DE DESENVOLVIMENTO DOS APRENDENTES: ASPETOS SOCIAIS E AFETIVOS DA APRENDIZAGEM DE UMA LÍNGUA ESTRANGEIRA
Authors: Chaves Rita
Published: May 2023

Neste artigo partilhamos a nossa visão de que o ensino das línguas estrangeiras deverá ter como objetivo contribuir para incrementar o potencial de desenvolvimento dos aprendentes de uma forma holística, nomeadamente no que respeita à interação social, indo assim mais além do que a simples promoção das competências linguísticas e comunicativas. Tal implica não descurar os aspetos sociais e afetivos da aprendizagem de uma língua estrangeira, bem como contribuir para a progressiva autonomização do aprendente. Consequentemente, iremos demonstrar, na senda do que Araújo e Sá (2013) defende, que a aquisição e desenvolvimento da linguagem não deverão ser desassociados das práticas sociais que comummente os acompanham. Assim, o desenvolvimento de competências em sala de aula terá a beneficiar com contextos que promovam a interação social, pelo que com este artigo pretendemos revelar alguns dos aspetos que se evidenciaram no decorrer de uma investigação centrada nos aprendentes, a qual permitiu conhecer melhor de que forma se processa a aprendizagem na aula de língua estrangeira, no que respeita à vertente da interação social e afetiva.
O PROFESSOR-MENTOR E O FEEDBACK, PROMOTORES DA APRENDIZAGEM CONSCIENTE DA ESCRITA
Authors: Ferreira Paula
Published: May 2023

Na sociedade e no contexto educativo, urge modificar a atuação do professor de modo a torná-la mais interativa e promotora da construção do saber e do ser. Em Portugal, o Perfil dos Alunos à Saída da Escolaridade Obrigatória norteia a premência desta mudança educativa, na medida em que se prevê a edificação de um sujeito, envolvido na construção do seu próprio processo de aprendizagem e na sua formação cívica e humana. Apresenta-se um estudo sobre o professor, transmissor de conhecimento, também professor-mentor, mediador de saber e orientador da cidadania do aluno, responsável pela promoção da consciência, autonomia e responsabilidade. O estudo foi aplicado a jovens do 7.º ano de escolaridade, na disciplina de Português, visando a promoção da competência de escrita, com o recurso ao mentoring do professor e ao feedback escrito, dirigido ao processo, à tarefa e à regulação da escrita. O feedback à produção escrita surge como estratégia para auxiliar na determinação do aluno aquando da correção e melhoramento de texto. Revela-se particularmente profícuo o feedback dirigido à tarefa e ao processo, pois nas produções textuais seguintes as incorreções inicialmente anotadas reduziram significativamente. O feedback, construtivo e positivo, mostra-se uma estratégia pedagógica promissora para a promoção da escrita e do sucesso do sujeito aprendente.
Interprofessional Poverty Simulation Affects Student Attitudes Toward Poverty and Interprofessional Relationships
Authors: Wise Barbara , Sneed Katti , Eby Ruth , Oldham Rhonda
Published: May 2023

Purpose: Poverty simulations in health professions education involving multiple disciplines have been studied, but the impact of poverty simulations on interprofessional attitudes has been surprisingly neglected. The purpose of this study was to determine the impact of the Cost of Poverty Experience simulation on attitudes toward interprofessional communication, learning, and collaboration, while still positively impacting attitudes toward poverty. Methods: Poverty simulations were held annually at a private midwestern university involving students from multiple disciplines inside and outside healthcare. Debriefing questions related to professional roles and teamwork were used to promote discussions between students from different professions about caring for clients experiencing poverty. Data from the 2017-19 events are detailed in this article. Over the three years, 325 students participated in the study. The University of West England Interprofessional Questionnaire and the Attitudes Toward Poverty Short Form were administered pre-and post-intervention. Results: The University of West England Interprofessional Questionnaire showed a significant (ppConclusions: The interprofessional poverty simulation experience positively impacted attitudes toward interprofessional communication and relationships while still significantly improving attitudes toward poverty. This finding adds to the literature by demonstrating that interprofessional poverty simulations can positively impact attitudes toward interprofessional communication and relationships when debriefing questions guide discussions about interprofessional roles and teams in caring for those living in poverty.
Burnout Syndrome Among Respiratory Therapists in Saudi Arabia
Authors: Asiri Waleed , Culbreth Rachel , Gardenhire Douglas
Published: May 2023

Background: Burnout (BO) is a consequence of chronic work-related stress exposure and impacts healthcare workers' performance, efficiency, and quality of care. Purpose: The study aimed to assess the BO among respiratory therapists (RTs) in Saudi Arabia and examine the association between BO and sociodemographic data and professional satisfaction. Methods: A cross-sectional study involving a convenience sample of RTs in Saudi Arabia was conducted utilizing the Maslach Burnout Inventory (MBI) in addition to questions regarding sociodemographic information and professional satisfaction. Three dimensions typify BO syndrome in the MBI questionnaire: emotional exhaustion, depersonalization, and low personal accomplishment. Statistical Package for the Social Sciences (SPSS) version 27.0 was used to analyse the data. To make comparisons between two continuous variables, independent samples t-tests were used. A one-way ANOVA test was used for factors with more than two categories. Two hundred thirty-six RTs (N=236) were surveyed in this study. The majority of the respondents were male n=130 (55.1%), single n=140 (59.3%), and lived in the central region n=136 (57.6%). The age of the participating RTs in the study ranged from 20 to 58 years, with an average of 28.5 years (SD±5.08). Results: The results showed that RTs had a high level of emotional exhaustion with a mean of 31.97, a moderate level for depersonalization with a mean of 11.39, and a moderate level for lack of personal accomplishment with a mean of 33.58. Age, gender, the role of the RTs, hours of work, and shift schedule of the participants were associated with BO. The workload was the most work factor among RTs associated with BO. Professional satisfaction of work-life balance, the current job, and monthly income were related to the burnout levels across the three subscales. Conclusion: This study was the first to explore BO by MBI and related factors among RTs in Saudi Arabia. Burnout seemed to be a common problem among RTs in Saudi Arabia and was associated with sociodemographic information and professional satisfaction. The findings may help to develop effective intervention strategies to limit and prevent BO. More prospective studies are required with a larger number of participants of RTs.
Preceptors’ Experiences Training Public Health Interns in Remote Workplace Settings
Authors: Anderson Olivia , August Ella
Published: May 2023

Background: The discourse around COVID-19 related challenges to classroom instruction has been highly visible, but little has been published on learning experiences outside the classroom that prepare students to work in the “real world.” Method: We interviewed five Master of Public Health internship preceptors about their experience in 2020 with student interns to formulate pertinent survey questions to distribute to a larger sample. Our questionnaire included closed- and open-ended questions regarding student attributes and skills that shaped the success of the internship. Data were collected from internships sites of one midwestern university. Results: Nearly all 26 preceptors that responded to our survey supervised fully remote internships. Internship sites included academic centers, private companies, non-profits, health systems, and others. Self-motivation, flexibility and organizational skills were considered key student attributes essential to succeed in a remote internship. Being uncomfortable in an online environment or being hesitant or passive were considered student attributes that made remote internships challenging. Preceptors reported that 2020 interns developed different skills compared to previous years, notably, those related to working in an online environment, intrapersonal skills like resilience, and technical skills, such as spatial analysis. Conclusion: As modes of learning and work continue to evolve, internship preceptors will need to learn and adapt to what it takes to support interns to develop relevant skills for remote or hybrid public health work environments. In the meantime, offering clear communication, support, and normalizing remote work cultures may enhance interns’ ability to fully engage and while maintaining the attributes necessary to make internships a success.
PENERAPAN UU NO. 3 TAHUN 2022 TENTANG IBU KOTA NEGARA DAN KONFLIK LAHAN DI IBUKOTA NEGARA BARU
Authors: Khair Otti Ilham , Sitohang Vayireh , Setianingsih Susiana , Usuma Gede Wijaya K
Published: May 2023

ABSTRAK

Pemindahan Ibukota Negara kini menjadi suatu kepastian dengan terbitnya Undang-Undang Nomor 3 Tahun 2022. Dengan berbagai dinamika sosial,politik dan hukum akhirnya rencana pemindahan ibukota negara dan persetujuan bersama dengan Dewan Perwakilan Rakyat, ibukota negara dipastikan akan berpiundah ke Provinsi Kalimantan Timur. Namun demikian tentu saja rencana pembangunan ibukota akan mengalami konflik lahan dengan beralihnya fungsi dan kepemilikan di wilayah tersebut. Status tanah yang sebelumnya dapat berupa hak pengusahaan hutan dan hak ulayat atau tanah adat tentu saja akan berubah fungsi.Tujuan penelitian in adalah untu menganalisis bagaimana Undang-Undang Ibukota Negara menagakomodir tentang penyelesaian konflik tanah yang akan terjadi. Metode penelitian pada penulisan ini adalah melalui metode penelitian kualitiatif dengan pendekatan desktriptif serta diperoleh melalui studi pustaka. Hasil penelitian yang ditemukan adalah Undanh-undang Ibukota Negara tidak mencantumkan Undang-Undang Pokok Agraria sebagai bahan pertimbangan dalam penyelenggaraan lahan dan dan tidak tegas terkait soal penguasaan, pengelolaan dan pemanfaatan lahan IKN.Dengan demikian diperlukan evaluasi terhadap aturan yang ada atau dengan memnyusun aturan turunan yang lebih menjelaskan dan menegaskan penyelesaian pertanahan yang ada.
“ALL TRUTH IS RELATIVE” OR HOW TO NOT BE FOOLED IN THE POST-TRUTH AGE?
Authors: Sargsyan Mariana
Published: May 2023

The term “fake news” is not a new phenomenon. Before the advent of the Internet, people read news from reliable sources which were required to adhere to strict standards of professional ethics. However, due to the ease of access to the Internet and social media there have emerged new ways of publishing, sharing and consuming news and information, in the meanwhile, the control over the quality and editorial norms have declined significantly. This has changed the way fake news is created and distributed. People now prefer to read the information on social media and other online sources. However, it is not always easy to determine which content is true and which is not. The paper argues that fake news employs specific language and graphic patterns which are meant to generate an emotional response. Knowing the language features of fake news may help readers become less susceptible to fake content. The study is built on the hypothesis that a critical analysis of how the information is represented activates a process of reasoning that helps spot fake content.
DECODING MULTIMODAL TEXTS OF MEDIA DISCOURSE
Authors: Harutyunyan Narine
Published: May 2023

In modern print and online media, the verbal text is increasingly being replaced by a multicode material, whose verbal component is illustrated, supplemented, and multiplied by the visual component. At the same time, the value and impact of the visual component increases immeasurably: vivid images are imprinted in the mind, making a powerful effect on readers and viewers. Since most media texts being multicode, special studies of such texts have become especially relevant today. Hence, based on the descriptive, analytical, non-verbal-culturological methods of research, this article discusses the role and relationship of visual and verbal texts, the advantages of the visual code as a carrier of implicit information on the covers of periodicals. The decoding of the multimodal text from The Economist magazine demonstrates clearly that, as a rule, the non-verbal component attracts more attention and inspires more confidence in the recipient. Because the non-verbal component is quite difficult for the addressee to track consciously, the additional manipulative potential of the metaphorical image is used in the text.
RULE OF POWER IN WILLIAM GOLDING’S "LORD OF THE FLIES"
Authors: Tchaparian Vicky
Published: May 2023

The rule of power is the concept around which William Golding’s Nobel Prize Winner novel Lord of the Flies turns. It is Golding’s literary masterpiece which is translated into more than 30 languages and hailed as one of the classics of the 20th century. The novel which tells the story of a group of young boys who find themselves alone on a deserted island, develop rules and a system of organization, but without any adults to serve as a civilizing impulse. The children eventually become violent and brutal. In the context of the novel, the tale of the boys’ descent into chaos suggests that human nature is fundamentally savage. Accordingly, Golding’s boys keep on fighting and choosing one leader after another making their choices depend on the most powerful boy among them all to rule. William Golding himself, as an allied officer who fought in World War II, experienced the destructive effect of the war first-person. After this devastation he witnessed, he published his first novel Lord of the Flies, which symbolically expressed his thoughts on human nature, rule of power, and the constant conflict between the good and evil. The aim of this article is to reveal the fact that according to Golding in the conflict between the good and evil, man’s nature tends more toward savagery and evil. The methodology used includes basic criticism regarding the concept of good versing evil in the human nature according to philosophy as well as religion. The hypothesis that the article rests upon points out that although human beings might try to act in a good manner, yet they are often heartless evils. Thus, a human being is always in need of social rules to be tamed and is always ready to worship something/someone stronger than himself/herself until he/she is saved by the “Messiah”.
SCIENTIFIC AND POLITICAL SIGNIFICANCE OF TEXTBOOKS ON HISTORY (objective history vs falsification)
Authors: Melkonyan Ashot
Published: May 2023

This article presents the process of creating new school textbooks on Armenian history in the post-Soviet years. The author emphasizes the necessity to revise a number of issues in Armenian historiography related to the ideological attitudes of the Soviet epoch. The revision of many issues by Armenian historians during the years of independence, such as periodization, the first state formations on the territory of the Armenian Highlands, the Armenian political parties, the First Republic of 1918-1920, Sovietization, etc., is reflected in the new history textbooks. The article provides examples of the distortion of Armenian and Russian history in various textbooks and emphasizes the importance of presenting the objective history in school textbooks for educating the younger generation.
LINGUO-STYLISTIC STRATIFICATION AS IDENTIFICATION OF FEMININITY IN THE NOVELS “SIRANUSH” BY SRBUHI TYUSAB AND “A GIRL’S HEART” BY SIPIL
Authors: Hambardzumyan Naira , Parsadanyan Siranush
Published: May 2023

The paper investigates the linguo-stylistic stratifications in the novels of Western Armenian women authors of the second half of the 19th century, in particular, Srbuhi Tyusab’s Siranush (1884) and Sipil’s A Girl’s Heart (1891), as well as their characteristic features and interpenetrations. The study aims to pinpoint those stratifications as a technique of female writing through the study of the linguistic features of the novels under analysis. The problem of the research is to interpret the literary techniques and devices (comparison, metaphor, oxymoron, ellipses, morphological and syntactic means) used in the mentioned works from a new perspective, clearly highlighting the male-female worldviews and world-images in the fictional works of the female authors. The illustrative material was analyzed with an application of linguistic, literary and comparative methods observing the linguo-styistic stratifications as identification of femininity in a single domain. The mentioned novels have so far not been analysed in terms of linguo-stylistic stratification. The study is important and relevant not only from the point of view of interdisciplinarity, but also that of the analysis of women’s issues in Armenological Studies.
Концептуальна модель когнітивного управління проєктами та програмами підготовки фахівців в умовах невизначеності
Authors: Chernova Lb.S. , Zhuravel I.A. , Zhuravel A.V.
Published: May 2023

Розглянуто концептуальну модель когнітивного управління программами та проєктами підготовки фахівців, яка була побудована автором і представлена як набор моделей і методів, сприяючих ефективності реалізації програм підготовки фахівців в умовах невизначеності. Охарактеризовано етапи життєвого циклу проєктів та програм, на яких реалізуються пов’язані між собою цілі та задачі. Впровадження концептуальної моделі із застосуванням когнітивних механізмів перетворення інформації сприяє досягненню певної мети в удосконаленні трансформації поточних знань та прий-няття управлінських рішень в умовах невизначеності або ризиків.
Про зміну параметрів морських контейнерів
Authors: Kirillova V. , Tykhonin V. , Tykhoninа І. , Romakh V.
Published: May 2023

Розглянуті застосовані на морському транспорті вантажні контейнери. Надана класифікація ІСО контейнерів по призначенню, конструкції, розмірам та масі. Приведені данні щодо до частки використання при морському перевезенню основних видів великотоннажних контейнерів. Наводиться поняття «контейнерного модуля ІСО» та аналіз його застосування для контейнерів, які використовуються при вантажних перевезеннях. Розглянуті певні недоліки контейнерного перевезення генеральних вантажів та вплив цих вад на розвиток вимог та конструктивних особливостей контейнерів. Надані введені при міжнародних морських перевезеннях «групові коди» контейнерів, які використовуються для зручності їхньої ідентифікації. Наведено аналіз впливу «контейнерного модуля ІСО» на конструктивні особливості морських суден, та виходячи з цього на розповсюдженість великотоннажних контейнерів певного розміру. Наведено перелік контейнерів різноманітної довжини, що використовуються при морськиперевезеннях, які не відповідають стандарту ІСО. Наводиться припущення, яке обґрунтовує появу такого різноманіття. Звертається увага на зміну з часом класифікації контейнерів за стандартами ІСО та появі в них певної невизначеності щодо до їх маси. Що призводить до постійної необхідності перевіряти маркування контейнерів з фактичною їх масою брутто. Розглядається вплив росту вантажопідйомності контейнеровозів та розвитку перевантажного обладнання на вимоги до міцності контейнерів та можливої висоти їхнього складування. Робляться висновки, що не зважаючи на наявність широкої номенклатури контейнерів, найбільшу їх кількість складають контейнери обмеженого типу. Вимоги до міцності, а відповідно й маса контейнерів, будуть більшуватися.