bluuebunny/crossref_metadata_2025 huggingface dataset:
Intra-Patient Genomic Variations of Human Papillomavirus Type 31 in Cervical Cancer and Precancer
Authors: Kogure Gota , Tanaka Kohsei , Matsui Tomoya , Onuki Mamiko , Matsumoto Koji , Iwata Takashi , Kukimoto Iwao
Published: October 2023

Human papillomavirus type 31 (HPV31) is detected less frequently in cervical cancer than two major causative types, HPV16 and HPV18. Here, we report a comprehensive analysis of HPV31 genome sequences in cervical lesions collected from Japanese women. Of 52 HPV31-positive cervical specimens analyzed by deep sequencing, 43 samples yielded complete genome sequences of around 7900 base pairs and 9 samples yielded partially deleted genome sequences. Phylogenetic analysis showed that HPV31 variant distribution was lineage A in 19 samples (36.5%), lineage B in 28 samples (53.8%), and lineage C in 5 samples (9.6%), indicating that lineage B variants are dominant among HPV31 infections in Japan. Deletions in the viral genome were found in the region from the E1 to L1 genes, but all the deleted genomes retained the E6/E7 genes. Among intra-patient nucleotide variations relative to a consensus genome sequence in each sample, C-to-T substitutions were most frequently detected, followed by T-to-C and C-to-A substitutions. High-frequency, intra-patient mutations (>10%) in cervical cancer samples were found in the E1, E2, and E7 genes, and all of them were nonsynonymous substitutions. The enrichment of high-frequency nonsynonymous substitutions strongly suggests that these intra-patient mutations are positively selected during the development of cervical cancer/precancer.
Unraveling the Complexities of Groundwater Salinization in Coastal Environments: Insights from Laizhou Bay’s Eastern Coast, China
Authors: Huang Peng , Ma Chuanming , Zhou Aiguo
Published: October 2023

Coastal areas have made substantial contributions to global economic development but are plagued by challenges such as groundwater salinization. Groundwater serves as the primary source for drinking, industrial, and domestic purposes in these coastal areas. Therefore, understanding the causes and processes of groundwater salinization holds paramount significance for effective groundwater management. The coastal area of Laizhou Bay in northern China serves as a quintessential example of such a scenario. With substantial groundwater extraction and severe groundwater salinization issues, it exacerbates the disparity between water-resource supply and demand. Currently, our understanding of the processes and influencing factors related to groundwater salinization in this region remains limited. In this study, employing hydrochemical and stable chlorine isotope analyses on 35 groundwater and seawater samples, an in-depth investigation into the complex mechanisms underlying groundwater salinization in the Quaternary aquifers of the eastern coastal plain of Laizhou Bay was conducted. The test results of the samples indicate that brine and saline groundwater are primarily of the Na-Cl type, exhibiting a hydrochemical composition similar to that of seawater. Brackish groundwater exhibits a diverse hydrochemical composition. The hydrogen and oxygen isotope characteristics of brackish and fresh groundwater resemble atmospheric precipitation, while brine, seawater, and saline groundwater show hydrogen and oxygen isotope depletion. Compared to seawater, brine exhibits significant δ37Cl depletion. The analysis of the test results reveals that the formation of brine aquifers results from a complex interplay of climate change, tectonic movements, and sea–land evolution, involving lagoon development during seawater regression, salt concentration through evaporation, and subsequent water–rock interactions. The genesis of saline groundwater involves a complex interplay of brine–seawater mixing, significant evaporation, and potential input of fresh groundwater from atmospheric precipitation and river sources. The formation of brackish groundwater is predominantly influenced by atmospheric precipitation, and agricultural activities, with significant variations in NO3− concentrations attributed to varying intensities of fertilizer application in the northern plain area. These insights contribute to a deeper understanding of the origins of groundwater and can inform the development of policies for groundwater protection in this area.
Gravelly Beach Deposits as a Proxy for Relative Sea-Level Changes in Microtidal Wave-Dominated Shoreline Systems: Examples from the Hinterland of the Taranto Gulf (Middle Pleistocene, Basilicata, Southern Italy)
Authors: De Giorgio Vincenzo , Sabato Luisa , Tropeano Marcello
Published: October 2023

The hinterland of the Taranto Gulf in Basilicata (Southern Italy) provides a great opportunity for the study of coarse-grained coastal systems belonging to a staircase of Quaternary terraced marine-deposits. Among gravelly successions, beach deposits abound in the stratigraphic record, offering exceptional outcrops useful for providing detailed information on their facies features. In this paper, we describe sedimentary facies, textural variations, and the depositional architecture of these deposits in order to: (1) demonstrate that the area is an excellent training ground for the study of gravelly beaches in microtidal settings; (2) discuss the use of beach deposits as a proxy for even small relative sea-level variations.
Empirical Formula to Calculate Ionic Strength of Limnetic and Oligohaline Water on the Basis of Electric Conductivity: Implications for Limnological Monitoring
Authors: Woszczyk Michał , Stach Alfred , Nowosad Jakub , Zawiska Izabela , Bigus Katarzyna , Rzodkiewicz Monika
Published: October 2023

Ionic strength (I; mol·L−1) acts as one of the most important parameters of natural waters. It is indispensable for obtaining ion activities and thus is crucial for describing chemical processes in water solutions. Limnology, I, has many applications, but calculating the partial pressure of CO2 (pCO2) and the carbonate saturation index (SI) are among the most important examples. The determination of I requires the full ion composition of water to be recognized, and when the concentration of some major ion(s) is/are missing altogether, the I value remains unknown. Because historical and monitoring data are often incomplete, it seems useful to provide a method for the indirect assessment of I. In this paper, we developed and tested an empirical model to estimate I on the basis of electric conductivity at 25 °C (EC). Our model consists of two linear equations: (i) Imod = 15.231 × 10−6·EC − 79.191 × 10−6 and (ii) Imod = 10.647 × 10−6·EC + 26.373 × 10−4 for EC < 592.6 μS·cm−1 and for EC > 592.6 μS·cm−1, respectively. We showed that model performance was better than the hitherto used EC–I relationships. We also demonstrated that the model provided an effective tool for limnological monitoring with special emphasis on the assessment of CO2 emissions from lakes.
Significant Dynamic Disturbance of Water Environment Quality in Urban Rivers Flowing through Industrial Areas
Authors: Li Di , Liang Longfei , Dong Qidi , Wang Ruijue , Xu Tao , Qu Ling , Wu Zhiwei , Lyu Bingyang , Liu Shiliang , Chen Qibing
Published: October 2023

The urban water environment is seriously affected by human activities. Rivers in highly industrialized areas, which often carry various types of industrial pollutants, such as metals and nutrients, are especially affected. In this study, the water quality of the Pi River, an industrial base that flows through Chengdu, a large city in Southwest China, was tested for one year. Heavy metal concentrations in the water, sediment, and macrobenthic and algal communities in the river were examined. The water pollution index (WPI) and trophic level index (TLI) were employed to measure the water pollution degree and eutrophication status, respectively. The Shannon—Wiener index (H’) and Margalef’s index (dM) were determined to represent the diversity and richness of macroinvertebrates. The principal component analysis (PCA) was employed to define the main heavy metal influencing factors in the Pi River. Our study showed that the eutrophication status increased with spatial change, and the eutrophication status was the most serious in the downstream reach, which was moderately eutrophic. The water body of the Pi River was seriously polluted by heavy metals, and the content of chromium (Cr) in the sediment and cadmium (Cd) in the water/sediment was far beyond the prescribed limit. In addition, we found that Cd had a serious impact on both the benthic and algal communities, and the benthic community structure was completely changed, destroying the original aquatic environment. We explored the mechanisms of the influence of Cd on aquatic fauna, and this information is of great significance for the future conservation of industrial urban rivers. In this study, the spatial–temporal variations in water quality and aquatic communities revealed the pollution status of a river flowing through industrial areas, which provided a basis for future river conservation and restoration.
Current issues of regulation of conduction of reliability and completeness checks of income, expenses, digitalization digital directions of public management at the federal level in the conditions of a new stage of digital transformation of public management
Authors: Eremin S.
Published: October 2023

The article is devoted to the study of promising tasks of improving public administration processes at the federal level in the context of a new stage of digital transformation of public management. The author argues the relevance and significance of the research topic. The current stage of digital transformation of public administration in foreign countries and in the Russian Federation is analyzed and evaluated, expressed in the transition of the “digital government” public administration model to a new stage of development — to Version 2.0 — the “GovTech-government” model. A general description of the trend directions of GovTech-technologization in the world practice of public administration is given, examples of local experience of their implementation in foreign countries are considered. The thesis is proved about the possibility of achieving great results and effects in improving the processes of public administration at the federal level in the Russian Federation in this direction, despite the situation of socio-economic instability in the country. Emphasis is placed on the fact that for the purposes of a successful transition from the “digital government” model to the “GovTech-government” model, there is a need to centralize management in new priority cross-departmental development areas, introduce other “administrative” GovTech development tools that have been successfully tested and applied in the international practice of public administration at the federal level.
Evaluation of infrared thermography, arterial Doppler ultrasound, and Doppler echocardiography in healthy adult dogs exposed to a single session of Whole-body vibration at different frequencies
Authors: Agostinho Manuela , Rahal Sheila , Bonatelli Shayra , Rosa Gustavo , Tsunemi Miriam , Zadra Vivian , Mamprim Maria Jaqueline , Takahira Regina , Souza Paulo , Santos Ivan
Published: October 2023

This study aimed to evaluate the infrared thermography, arterial Doppler ultrasound, and Doppler echocardiography in healthy adult dogs exposed to a single Whole-body vibration (WBV) at different frequencies. Sixteen (16) healthy crossbreed dogs males of ages 1 to 5 years, weighing 16.3 to 24.5 kg were enrolled in the study. The dogs were exposed to a single WBV session at frequencies of 30 Hz (5 min), 40 Hz (5 min), and 50 Hz (5 min) with intervals between each frequency exposure of 10 min. The cutaneous temperature, arterial Doppler ultrasound, and Doppler echocardiography were evaluated 10 min before the WBV session, between each frequency, and 1 min after the last frequency. The cutaneous temperature of the regions of the superficial gluteal muscle and biceps femoris muscle of both hind limbs was obtained with an infrared camera. Resistive indexes of carotid and femoral arteries were determined using Doppler ultrasound, and Doppler echocardiography was used to assess the end-systolic volume and end-diastolic volume, heart rate, aortic blood flow velocity, and pulmonary artery flow velocity. Clinical parameters, complete blood count, and serum biochemical (alanine aminotransferase, creatinine, and creatine phosphokinase) were evaluated 10 min before and 60 min after the end of the WBV session. Statistically significant differences were not found in any of the variables among the time points. In conclusion, the protocol of increasing vibration frequencies (30, 40, and 50 Hz) at short-period WBV can be considered appropriate since no change occurred in the parameters evaluated.
Meyer-König and Zeller operators based on the \(q\)-integers
Authors: Trif Tiberiu
Published: October 2023

Not available.
Convexity and quadratic monotone approximation in delay differential equations
Authors: Precup Radu
Published: October 2023

In this paper the method of quasiliniarization, an application of Newton's method, recently generalized in [1], is used for the quadratic, monotonic, bilateral approximation of the solution of the delay problem (5). The result is applied to an integral equation from biomathematics.
On the approximation of functions by means of the operators of binomial type of Tiberiu Popoviciu
Authors: Stancu Dimitrie D.
Published: October 2023

In 1931, Tiberiu Popoviciu has initiated a procedure for the construction of sequences of linear positive operators of approximation. By using the theory of polynomials of binomial type \((p_m)\) he has associated to a function \(f\in C[0,1]\) a linear operator defined by the formula\[\left( T_m f\right) (x) = \tfrac{1}{p_m(1)} \textstyle\sum\limits _{k=0} ^m \tbinom{m}{k}p_k (x) p_{m-k} (1-x) f\big(\tfrac{k}{m}\big).\]Examples of such operators were considered in several subsequent papers.

In this paper we present a convergence theorem corresponding to the sequence \(\left( T_mf\right)\) and we also present a more general sequence of operators of approximation \(S_{m,r,s}\), where \(r\) and \(s\) are nonnegative integers such that \(2sr\leq m\).

We give an integral expression for the remainders, as well as a representation by using divided differences of second order.
Approximation operators constructed by means of Sheffer sequences
Authors: Crăciun Maria
Published: October 2023

In this paper we introduce a class of positive linear operators by using the

"umbral calculus", and we study some approximation properties of it. Let \(

Q \) be a delta operator, and \(S\) an invertible shift invariant operator. For

\(f\in C[0,1]\) we define

\begin{equation*}

(L_{n}^{Q,S}f)(x)=

{\textstyle\frac{1}{s_{n}(1)}}

\sum\limits_{k=0}^{n}{\textstyle\binom{n}{k}}p_{k}(x)s_{n-k}(1-x)f\left( \tfrac{k}{n}

\right),

\end{equation*}

where \((p_{n})_{n\geq0}\) is a binomial sequence which is the basic

sequence for \(Q,\) and \((s_{n})_{n\geq0}\) is a Sheffer set, \( s_{n}=S^{-1}p_{n} \). These operators generalize the binomial operators of T.

Popoviciu.
Direct and indirect approximations to positive solution for a nonlinear reaction-diffusion problem. I. Direct (variational)
Authors: Gheorghiu Călin-Ioan , Trif Damian
Published: October 2023

We consider a nonlinear, second-order, two-point boundary value problem that models some reaction-diffusion precesses. When the reaction term has a particular form, \(f(u)=u^{3}\), the problem has a unique positive solution that satisfies a conserved integral condition. We study the bifurcation of this solution with respect to the length of the interval and it turns out that solution bifurcates from infinity. In the first part, we obtain the numerical approximation to the positive solution by direct variational methods, while in the second part we consider indirect numerical methods. In order to obtain directly accurate numerical approximations to this positive solution, we characterize it by a variational problem involving a conditional extremum. Then we carry out some numerical experiments by usual finite elements method.
On the rate of convergence of Baskakov-Kantorovich-Bézier operators for bounded variation functions
Authors: Abel Ulrich , Gupta Vijay , Ivan Mircea
Published: October 2023

In the present paper we introduce Baskakov-Kantorovich-Bézier operators and study their rate of convergence for functions of bounded variation.
Aitken-Steffensen-type methods for nonsmooth functions (II)
Authors: Păvăloiu Ion
Published: October 2023

We present some new conditions which assure that the Aitken-Steffensen method yields bilateral approximation for the solution of a nonlinear scalar equation. The auxiliary functions appearing in the method are constructed under the hypothesis that the nonlinear application is not differentiable on an interval containing the solution.
On the convergence order of some Aitken-Steffensen type methods
Authors: Păvăloiu Ion
Published: October 2023

In this note we make a comparative study of the convergence orders for the Steffensen, Aitken and Aitken-Steffensen methods. We provide some conditions ensuring their local convergence. We study the case when the auxiliary operators used have convergence orders \(r_{1},r_{2}\in \mathbb{N}\) respectively. We show that the Steffensen, Aitken and Aitken-Steffensen methods have the convergence orders \(r_{1}+1\), \(r_{1}+r_{2}\) and \(r_{1}r_{2}+r_{1}\) respectively.
Weighted quadrature formulae of Gauss-Christoffel-Stancu type
Authors: Stancu Dimitrie D. , Taşcu Ioana , Beian-Putura Alina
Published: October 2023

In the present paper we consider weighted integrals and develop explicit quadrature formulae of Gauss-Christoffel-Stancu type using simple Gaussian nodes and multiple fixed nodes. Given the multiple fixed nodes and their multiplicities, we present some algorithms for finding the Gaussian nodes, the coefficients and the remainders of the corresponding quadrature formulae. Several illustrative examples are presented in the case of some classical weight functions.
Rate of convergence of Stancu beta operators for functions of bounded variation
Authors: Abel Ulrich , Gupta Vijay
Published: October 2023

In this paper we study beta operators of second kind recently introduced by Prof. D. D. Stancu. We obtain an estimate on the rate of convergence for functions of bounded variation by means of the decomposition technique.
The Voronovskaja theorem for Bernstein-Schurer bivariate operators
Authors: Bărbosu Dan
Published: October 2023

The Voronovskaja theorem for the Bernstein-Schurer bivariate operatos is established.
Properties of the complexity function for finite words
Authors: Anisiu Mira-Cristiana , Cassaigne Julien
Published: October 2023

The subword complexity function \(p_{w}\) of a finite word \(w\) over a finite alphabet \(A\) with \(\operatorname*{card}A=q\geq1\) is defined by \(p_{w}(n)=\operatorname*{card}(F(w)\cap A^{n})\) for \(n\in\mathbb{N},\) where \(F(w)\) represents the set of all the subwords or factors of \(w\). The shape of the complexity function, especially its piecewise monotonicity, is studied in detail.The function \(h\) defined as \(h(n)=\min\left\{ q^{n},N-n+1\right\} \) for \(n\in\{0,1,\) \(...,N\}\) has values greater than or equal to those of the complexity function \(p_{w}\) for any \(w\in A^{N}\), i.e., \(p_{w}(n)\leq h(n)\) for all \(n\in\{0,1,...,N\}\). As a first result regarding \(h\), it is proved that for each \(N\in\mathbb{N}\) there exist words of length \(N\) for which the maximum of their complexity function is equal to the maximum of the function \(h\); a way to construct such words is described. This result gives rise to a further question: for a given \(N\), is there a word of length \(N\) whose complexity function coincides with \(h\) for each \(n\in\{0,1,...,N\}?\) The problem is answered in affirmative, with different constructive proofs for binary alphabets (\(q=2\)) and for those with \(q>2.\) This means that for each \(N\in\mathbb{N},\) there exist words \(w\) of length \(N\) whose complexity function is equal to the function \(h\). Such words are constructed using the de Bruijn graphs.
On \(\beta\)-differentiability of norms
Authors: Anisiu Valeriu
Published: October 2023

In this note we give some characterizations for the differentiability with respect to a bornology of a continuous convex function. The special case of seminorms is treated. A characterization of this type of differentiability in terms of the subgradient of the function is also obtained.
Finitely defined functionals and divided differences
Authors: Ivan Mircea
Published: October 2023

We give a necessary and sufficient condition for representing finitely defined functionals in terms of divided differences. As particular cases we obtain formulas of Tiberiu Popoviciu, Newton, etc.
\(E\)-Convex programming
Authors: Lupşa Liana , Duca Dorel
Published: October 2023

In [6] one shows that some of the results obtained in [5] on \(E\)-convex programming are incorrect. In this paper we recover these results in the new hypotheses.
Characterization of \(\varepsilon\)-nearest points in spaces with asymmetric seminorm
Authors: Mustăţa Costică
Published: October 2023

In this note we are concerned with the characterization of the elements of \(\varepsilon\)-best approximation (\(\varepsilon\)-nearest points) in a subspace \(Y\) of space \(X\) with asymmetric seminorm. For this we use functionals in the asymmetric dual \(X^{b}\) defined and studied in some recent papers [1], [2], [5].
On the Leibniz formula for divided differences
Authors: Ivan Mircea
Published: October 2023

We give an identity for the Hermite-Lagrange interpolating polynomial and a short proof of Leibniz-type formula for divided differences in case of coalescing knots.
An approximation algorithm for the at least version of the generalized minimum spanning tree problem
Authors: Pop Petrică C. , Horvat-Marc Andrei , Pop Sitar Corina
Published: October 2023

We consider the at least version of the Generalized Minimum Spanning Tree Problem, denoted by L-GMSTP, which consists in finding a minimum cost tree spanning at least one node from each node set of a complete graph with the nodes partitioned into a given number of node sets called clusters. We assume that the cost function attached to edges satisfies the triangle inequality and the clusters have sizes bounded by \(\rho\). Under these assumptions we present a 2\(\rho\) approximation algorithm.The algorithm works by rounding an optimal fractional solution to a linear programming relaxation. Our technique is based on properties of optimal solutions to the linear programming formulation of the minimum spanning tree problem and the parsimonious property of Goemans and Bertsimas.
Iterative functional-differential system with retarded argument
Authors: Otrocol Diana
Published: October 2023

Existence, uniqueness and data dependence results of solution to the Cauchy problem for iterative functional-differential system with delays are obtained using weakly Picard operator theory.
Approximation properties of modified Stancu beta operators
Authors: Rempulska L. , Skorupka M.
Published: October 2023

In this paper we give approximation theorems for modified Stancu beta operators of differentiable functions. The Stancu beta operators were examined in [8, 1, 2, 5] and other papers.
Generation of non-uniform low-discrepancy sequences in the multidimensional case
Authors: Roşca Natalia
Published: October 2023

In this paper we extend the results we obtained in an earlier paper, from the one-dimensional case to the \(s\)-dimensional case. We propose two inversion type methods for generating \(G\)-distributed low-discrepancy sequences in \([0,1]^{s}\), where \(G\) is an arbitrary distribution function. Our methods are based on the approximation of the inverses of the marginal distribution functions using linear Lagrange interpolation or cubic Hermite interpolation. We also determine upper bounds for the \(G\)-discrepancy of the sequences we generate using the proposed methods.
Application des méthodes d'optimisation pour la résolution du problème d'inégalités variationnelles
Authors: Radjeai Samia , Keraghel Abdelkrim , Benterki Djamel
Published: October 2023

In French.
Le problème d'inégalités variationnelles, lancé au milieu des années soixantes par Hartman et Stampacchia dans le cadre du calcul des variations, et celui des problèmes aux limites des équations aux dérivées partielles, prend depuis quelques années une importance grandissante dans l'étude théorique et le traitement numérique de plusieurs types de problèmes pratiques et scientifiques d'intérêt capital. Les techniques d'optimisation constituent un bon stimulant conduisant à une méthodologie riche et pleine d'expériences. A ce propos, ce problème est converti en un problème d'optimisation équivalent, avec ou sans contraintes, ayant les propriétés requises pour un traitement convenable.Notre travail se rattache à des méthodes d'optimisation sans contraintes. Nous avons pu mettre en oeuvre plusieurs versions de ces algorithmes présentées dans un cadre comparatif signifiant, à travers des problèmes mathématiques importants.
In English.
The problem of variational inequalities, launched in the mid-sixties by Hartman and Stampacchia in the context of the calculus of variations, and that of problems at the limits of partial differential equations, has become increasingly important in recent years in the theoretical study and numerical treatment of several types of practical and scientific problems of capital interest.
Optimization techniques are a good stimulus leading to a rich and experienced methodology. In this regard, this problem is converted into an equivalent optimization problem, with or without constraints, having the properties required for a suitable treatment.
Our work is related to optimization methods without constraints. We were able to implement several versions of these algorithms presented in a meaningful comparative framework, through important mathematical problems.
Common fixed points versus invariant approximation for noncommutative mappings
Authors: Nashine Hemant Kumar
Published: October 2023

The aim of this paper is to obtain common fixed points as invariant approximation for noncommuting two pairs of mappings. As consequences, our works generalize the recent works of Nashine [9] by weakening commutativity hypothesis and by increasing the number of mappings involved.
Input-output conditions for exponential trichotomy of dynamical systems
Authors: Sasu Adina Luminiţa , Sasu Bogdan
Published: October 2023

The aim of the paper is to provide new properties concerning the property of uniform exponential trichotomy on the real line. We obtain a characterization for uniform exponential trichotomy in terms of the solvability of an associated integral equation.
Solving inverse problems via weak contractive maps
Authors: Şoltuz Ştefan M.
Published: October 2023

We prove a "collage'' theorem for weak contractive maps and we use it for inverse problems.
An iterative method for approximating fixed points of Presić nonexpansive mappings
Authors: Berinde Vasile , Păcurar Mădălina
Published: October 2023

Some fixed point theorems of Presić type for nonexpansive mappings\(f: X^k\rightarrow X\), where \(k\geq 1\) is an integer, are obtained.The main result of the paper unifies two important fixed point theorems published in the same year, 1965, the first one discovered independently by Browder [F.E. Browder, Nonexpansive nonlinear operators in Banach spaces, Proc. Nat. Acad. Sci. U.S.A., 54 (1965), 1041-1044], Göhde [D. Göhde, Zum Prinzip der kontraktiven Abbildung, Math. Nachr., 30(1965), 251-258] and Kirk [W.A. Kirk, A fixed point theorem for mappings which do not increase distances, Amer. Math. Monthly,72 (1965), 1004-1006], while the second one is due to Presić [S.B. Presić, Sur une classe d' inéquationsaux differences finite et sur la convergence de certaines suites, Publ. Inst. Math. (Beograd)(N.S.), 5(19) (1965),75-78]. In this way we show how amazingly two apparently different beautiful results in mathematics can meet after almost half a century! This appears to be the first attempt to study multi-step iterative methods by means of the fixed point theory of nonexpansive mappings. Several related results in literature are extended, unified and generalized.
An optimal double inequality among the one-parameter, arithmetic and harmonic means
Authors: Miao-Kun Wang , Ye-Fang Qiu , Yu-Ming Chu
Published: October 2023

For \(p\in\mathbb{R}\), the one-parameter mean \(J_{p}(a,b)\), arithmetic mean \(A(a,b)\), and harmonic mean \(H(a,b)\) of two positive real numbers \(a\) and \(b\) are defined by\begin{equation*}J_{p}(a,b)=\begin{cases}\tfrac{p(a^{p+1}-b^{p+1})}{(p+1)(a^p-b^p)}, & a\neq b,p\neq 0,-1,\\\tfrac{a-b}{\log{a}-\log{b}}, & a\neq b,p=0,\\\tfrac{ab(\log{a}-\log{b})}{a-b}, & a\neq b,p=-1,\\a, & a=b,\end{cases}\end{equation*}\(A(a,b)=\tfrac{a+b}{2}\), and \(H(a,b)=\tfrac{2ab}{a+b}\),respectively. In this paper, we answer the question: For \(\alpha\in(0,1)\), what are the greatest value \(r_{1}\) and the least value \(r_{2}\) such that the double inequality \(J_{r_{1}}(a,b)<\alpha A(a,b)+(1-\alpha)H(a,b)0\) with \(a\neq b\)?
À propos de la découverte de la Mise au tombeau d’Antoine de Lonhy à Saint-Jean-de-Maurienne
Authors: Saroni Giovanna
Published: October 2023

1858 wurde in der Kathedrale von Saint-Jean-de-Maurienne ein Fresko mit der Darstellung einer Grablegung freigelegt. Dieses Ereignis wurde im 19. Jahrhundert zu einem Wendepunkt in der Geschichte der Entdeckung, der Bewahrung und der Wertschätzung des antiken und mittelalterlichen Kulturerbes in den Westalpen. Das Fresko kann heute Antoine de Lonhy zugeschrieben werden, einem fahrenden Künstler mit diversen Fähigkeiten, der sich zu Beginn der 1400er Jahre nach seinen Anfängen in Burgund und Aufenthalten in Toulouse und Barcelona in der Grafschaft Savoyen niederließ. Der Beitrag stützt sich auf Archivquellen und Veröffentlichungen der wissenschaftlichen Gesellschaften der Grafschaft Savoyen aus der Zeit der Entdeckung des Freskos und beschreibt deren verschiedene Phasen. Dieses Beispiel zeigt nicht nur das Interesse des 19. Jhs. für das Mittelalter, es zeugt unter anderem auch von der reichen Ausstattung der Kathedrale von Saint-Jean-de-Maurienne, die größtenteils aufgrund von Veränderungen des Baues seit dem 17. Jh. und Zerstörungen durch die Französische Revolution verlorengegangen war.
Contributions féminines à la floristique de la France avant 1870
Authors: Andre Gilles , Philippe Marc
Published: October 2023

L’histoire de la botanique, telle qu’écrite à ce jour, rapporte peu de contributions féminines antérieures à 1890. Pourtant la botanique a été extrêmement pratiquée par les femmes dès la fin du XVIIIe siècle. Pour explorer ce hiatus on a étudié la pratique de la floristique par les femmes en France entre 1700 et 1870. Plus de cents femmes ont produit des données floristiques. Une synthèse est faite de leurs parcours, depuis leur initiation à la botanique jusqu’à leur pratique et leur sociabilité autour de cette science, ainsi que de l’accueil que leur ont fait leurs collègues masculins. Il est manifeste que la contribution des femmes à la floristique de la France au XVIIIe et au XIXe siècle est minimisée, sous l’action synergique de divers facteurs.
Une nouvelle espèce pour la Corse : Asparagus maritimus (L.) Mill., découverte près de la tour de Fenu (nord-ouest d’Ajaccio)
Authors: Paradis Guilhan , Appietto Alain , Piazza Carole
Published: October 2023

L’espèce rare Asparagus maritimus était considérée comme absente de Corse. Deux minuscules sous-populations, n’ayant en tout que 205 individus, ont été découvertes près de la tour de Fenu, sur le site Natura 2000 «Capo di Feno-Villanova » . Ces sous-populations se localisent dans des talwegs peu profonds, face à la mer, entre 20 et 30 m d’altitude, sur un substrat terreux, sablo-limono-argileux. Les individus d’A. maritimus se trouvent dans une fruticée basse et claire, dominée par Jacobaea maritima, Euphorbia pithyusa et Scirpoides holoschoenus, classable dans l’alliance sub-halophile Euphorbion pithyusae. Bien qu’actuellement, en Corse, l’espèce ne semble pas menacée, sa protection régionale serait nécessaire.
Compte-rendu floristique et phytosociologique du voyage de la Société botanique de France au Ladakh (Inde du Nord), juillet-août 2016
Authors: Dodinet Elisabeth , Mollet Anne-Marie , de Foucault Bruno
Published: October 2023

Overview of flora and vegetation of Ladakh (North of India)
A propos du Gasparrinia peucedanoides (M. Bieb.) Thell., l’histoire de sa découverte en Côte-d’Or
Authors: Vallade Jean
Published: October 2023

The Apiaceae Gasparrinia peucedanoides (M. Bieb.) Thell. has been discovered by Lorey and Duret at the time of writing their Flore de la Côte-d’Or (1831). This plant formed the subject of numerous discussions : the best botanists of this time gave one’s opinion about this new species for Science, opinions recorded into letters addressed to Lorey whose manuscript pages are kept at Muséum-Jardin des sciences of Dijon.
Notes nomenclaturales relatives aux Aspleniaceae (Pteridophyta)-II
Authors: Boudrie Michel , Viane Ronald
Published: October 2023

New combinations are made for hybrids of the Asplenium X claphamii complex at the nothosubsp. rank. On the other hand, Asplenium fontanum subsp. jahandiezii Litard. and Asplenium trichomanes sublusus pachyrachis Christ are lectotypified.
Jean-Jacques Rousseau, initiateur des débuts de la bryologie à Lyon
Authors: Philippe Marc
Published: October 2023

Jean-Jacques Rousseau est connu pour avoir recommandé la pratique de la botanique, mais il est aujourd''hui souvent considéré comme un botaniste plus exalté que pertinent. Ses courriers à Claret de La Tourrette, Gouan et Linné ne sont pourtant pas d''un niveau botanique moindre à celui des courriers qu''échangeaient ces trois derniers entre eux. Ses compétences en bryologie étaient exceptionnelles pour l''époque en France. Plusieurs de ses données ont été publiées par le lyonnais Claret de la Tourrette. Ce dernier, sous l''influence de Rousseau, décida en 1770 de se consacrer à la botanique et transforma radicalement sa pratique, développant la floristique et s''attachant à des groupes difficiles -les " gramens" et les " mousses", mais aussi les lichens. Claret de la Tourrette publia par la suite une préfiguration d''une flore lyonnaise, sa Chloris lugdunensis (1785), qui révolutionna la vision que l''on avait alors en France du groupe des bryophytes en listant plus de 140 espèces. Le premier il infirmait ainsi l''hypothèse de Linné selon laquelle l''Europe méridionale était pauvre en bryophytes. L''abbé Gaspard Dejean semble aussi avoir bénéficié de l''impulsion donnée par Rousseau, ainsi que l''abbé Etienne Pagès. Peu avant son décès, en 1793, Claret de la Tourrette avait préparé une mise à jour de sa Chloris, ajoutant une centaine d''autres espèces de bryophytes, aujourd’hui perdue.
Introduction aux modèles phyllotaxiques
Authors: Walch Jean-paul , Blaise Solange
Published: October 2023

L’arrangement des feuilles le long des tiges montre des motifs géométriques remarquables qui sont créés dans les bourgeons. Des modèles mathématiques élucident le mécanisme de leur formation. Nous présentons un modèle pouvant être développé au moyen d’un simple tableur et confrontons ses résultats aux observations de méristèmes de Linum usitatissimum et Sedum sexangulare. La naissance de chaque primordium se fait dans le plus grand espace laissé libre par les primordiums juste précédents. Un tel mécanisme est suffisant à créer les structures observées ainsi que leur organisation suivant la suite de Fibonacci convergeant vers l’angle d’or ou celle de Lucas.
Le trésor de solidi byzantins de Bulla Regia (Hammem Darraji, Tunisie, 1952)
Authors: Ben Slimène Benabbès Hanène
Published: October 2023

Un trésor de monnaies d’or byzantines daté de la fin VIe-début VIIe siècle fut découvert en 1951 au cours des fouilles exécutées à Hammam Darraji, l’antique Bulla Regia, dans l’ancienne province d’Afrique Proconsulaire (Tunisie). Le trésor comprend 62 solidi, tous issus de l’atelier de Carthage et répartis comme suit : 4 solidi de Maurice (type II), 4 solidi de Phocas (type II), 3 solidi d’Héraclius (type I), et 51 solidi d’Héraclius (type II) présentant de nombreuses liaisons de coins. 53 exemplaires seulement sont conservés aujourd’hui au Musée national du Bardo.
Un ripostiglio di solidi di VII secolo (603-681) dalla costa mediterranea palestinese (Gaza?)
Authors: Callegher Bruno
Published: October 2023

Le trésor qui fait l’objet de cet article a été découvert récemment lors de fouilles irrégulières dans la Bande de Gaza ou dans les environs de la côte du Sinaï égyptien. Il comprend 61 solidi de Phocas à Constantine IV et 1 tremissis de Constantin IV, frappés entre 603 et 674. Le trésor fut très probablement enterré à la fin du règne de Constantin IV (681) ; il témoigne des solidi disponibles dans la circulation monétaire en Palestine dans la seconde moitié du VIIe siècle lorsque le pouvoir islamique prenait forme.
Turning Grey to Green: Engaging Gamification in Sustainability Education with Augmented Reality Technology
Authors: Ma Yujun , Dik Nga Yin , Fung Sui Leung Walter
Published: October 2023

In recent decades, topics of sustainability and carbon neutrality are getting more attention from society and academia in the sense of urbanization and social innovation. Scholars have been proposing methods to achieve sustainability and they emphasize the importance of educating citizens about the ethics of sustainability. Also, in the educational context, there is a trend in applying gamification concepts to promote sustainability. Previous studies have demonstrated that gamification can engage students through interactive content and reward systems, so that they can be motivated to learn and apply knowledge. Nevertheless, limited articles can be found to propose methods for developing technological applications for green innovation education. In addition, scant interest has been shown to include gamification in sustainability education, especially in Hong Kong. Knowing that simulation games may raise students’ curiosity to learn, we designed an augmented-reality-based educational mobile application to investigate their perception of engaging technologies and gamification in the learning process of sustainability education. In this application, there are three major components to be presented. First, various simulation games are included to educate learners with practical skills to nurture sustainable living habits. Cartoons and animations are added to better explain abstract ecological theories, and learners can interact with game characters / elements in real-time motion for an advanced gaming experience. Second, to motivate students to learn the content, digital achievement badges can be earned after winning the mini-games and they can be shared on social media platforms. It is expected that the reward system can attract students to participate actively. Last but not least, the application is hoped to engage Hong Kong citizens and the globe in the Green Deck project of Hong Kong and encourage more social involvement. With reference to the application structure, this study is expected to explore the effects of implementing games and augmented reality on education for sustainable development. Two surveys (pre- and post-surveys) would be established to evaluate the students’ learning experience and knowledge acquisition on sustainability.
Vocabulary Acquisition in New and Learned Contexts Using Immersive Virtual Reality
Authors: Bergsma Thérèse , Theune Mariët , Van Delden Robby
Published: October 2023

Vocabulary acquisition is important for learning a language. Language learners need multiple encounters with a word to add unknown word aspects to their word knowledge or to strengthen their knowledge of previously learned word aspects. Combining vocabulary acquisition with immersive virtual reality (IVR) makes it possible to have such multiple encounters. In IVR, objects representing target words can be shown in the same virtual environment as they were first encountered (learned context), but also in a new virtual environment (new context). To investigate learning words in either a new or learned context in IVR we built Wics (words in context system). We used Wics to carry out an experiment in which participants could learn 32 Japanese words, represented by 3D objects, in three sessions. In the second and third learning session all words were shown in either a new context, with a changed environment and a changed visual representation of the word objects, or a learned context, where only the placement of the objects was changed. Performance scores for an immediate and a delayed post-test (one week later) revealed no significant differences in performance between conditions. However, there was a tendency towards participants spending more time on learning the words in the learned context condition. We believe Wics to be the first IVR system to provide learners with multiple learning sessions to provide multiple encounters with the same words in different contexts, where learners have control over their own explorative learning, and where the post-tests are inside IVR.
Evaluating the Impact of Serious Games on Study Skills and Habits
Authors: Kiron Nafisul , Omar Mehnuma Tabassum , Vassileva Julita
Published: October 2023

Learning is a constructive process that requires dedication and motivation. Learning games can be used to en-gage learners, by providing opportunities to apply knowledge in a safe and fun environment. We created a peer-quizzing game that allows students to quiz each other on the course material and to playfully engage in good study habits. We set out to explore if learners with better learning skills and habits would be more en-gaged in the game in the context of a first-year computer science university class. We used the "Study Skills and Habits Questionnaire" to study the relationship between study skills and habits (especially time management, concentration, goal setting, and comprehension) and engagement in a competitive version of a peer-quizzing game including a leaderboard. We collected and analysed gameplay data of the students (n=34), such as creating quiz questions and solving the questions created by their peers. The results of the data analysis showed a moderate positive correlation between study skills and habits (time management, concentration, goal setting, and comprehension) and the number of questions answered and a moderate negative correlation with the number of questions created in the game. However, the regression model was not statistically significant in explaining the variation in the dependent variable (questions created). Among the individual predictor variables, only goal setting had a statistically significant positive effect on the number of questions created. Other variables, such as time management, concentration, and comprehension, did not show significant effects on the number of questions created by students.
Enhancing Mathematical Reasoning in Primary School with the Strategic Board Game Othello
Authors: Jensen Erik Ottar , Nehammer Emilie Madeline Hersaa , Eriksen Anna Louise
Published: October 2023

This study explores how the board game Othello can enhance primary school students' mathematical reasoning. Mathematical reasoning is increasingly emphasized in international mathematics curricula, yet both teachers and students face challenges in teaching and learning this important skill. Research shows that strategic games, like Othello, can develop thinking abilities related to mathematical reasoning by providing a context for students to engage in reflective thinking, anticipate future moves, and develop reasoning strategies. However, there is a need to understand how teachers can effectively utilize these games in the classroom to foster mathematical reasoning. We address this, through a design-based research approach consisting of a hermeneutic literature study and the development of design principles for a teaching intervention in a fifth-grade classroom. Data from the intervention is collected through participant observations and group interviews. The findings suggest that Othello can serve as a context for students to engage in mathematical reasoning by making and justifying claims and presenting logical arguments. The study proposes three design principles to scaffold mathematical reasoning during Othello gameplay. These principles focus on introducing and reinforcing the use of the "if...then" formulation, promoting exploratory talk, encouraging reflection on strategies, and fostering collaborative reasoning. The results indicate that the design principles positively impacted students' ability to reason mathematically. This paper contributes to the field of mathematics education and game-based learning by providing a practice-oriented perspective on designing mathematical instruction for reasoning using a specific board game in a primary school setting. The findings offer insights into the potential of strategic board games like Othello to enhance students' mathematical reasoning skills. The design principles proposed in this study can guide teachers in developing effective instructional approaches to support students' mathematical reasoning development.
The Language of Life: A Game-Based Workshop for Introducing Protein Biosynthesis
Authors: Chiarello Fabio , Fioretti Daniela , Antognozzi Tiziano , Bertani Francesca Romana , Bilancini Ennio , Bisanti Matteo , Boncinelli Leonardo , Businaro Luca , Di Paolo Roberto , Gerardino Annamaria , Iurescia Sandra
Published: October 2023

Protein biosynthesis is a complex process that involves the transcription of DNA into mRNA and the subsequent translation of mRNA into proteins according to the genetic code. To introduce this fundamental process to a broad audience, we developed "The Language of Life", a game-based workshop that was presented at the Genoa Science Festival 2022, the largest science communication event in Italy. The game-based workshop employed jigsaw puzzle-like elements to represent DNA, mRNA, and aminoacyl transfer RNAs, enabling participants to pair them through codon combinations. The game-based workshop lasted for an hour and the framing was a "special mission" inside a cell. It consisted of an initial training phase that incorporated videos, models, and explanations, followed by practical "missions'' in which participants reproduce transcription and translation mechanisms by moving inside the cell and using the provided materials. The workshop was attended by 1,505 participants, primarily students aged 6-18, and received positive feedback. In this paper, we present our experience conducting this workshop and discuss its impact and potential for future use.
الحماية الدستورية للحق في الكرامة الإنسانية في التشريع الإماراتي
Authors: عبدالرحمن رؤى , بدر أميرة
Published: October 2023

خلق الله سبحانه وتعالى الإنسان وكرمه في الأرض وميزه عن المخلوقات الأخرى، وشرع له كافة الوسائل لحماية كرامته الإنسانية، إلا أنه حتى اليوم مازالت هناك بعض المجتمعات التي تخرق تلك الحماية وتعتدي عليها، فما زلنا حتى تاريخ اليوم نسمع باضطهاد السود في أمريكا وقتل بعض المسلمين في الدول الأجنبية على الرغم من أن هذه الفئات تتمتع بالكرامة الإنسانية.

إن الحفاظ على الكرامة الإنسانية هو حق مقدس ومكفول لجميع الأفراد وان اختلفوا بلونهم أو جنسهم أو عرقهم، وكما أن العائق الحقيقي الذي مازال موجود حتى تاريخ اليوم هو وجود بعض المجتمعات التي لم تصبغ الحماية الكافية لهذا الحق، ولم تضع عقوبات وجزاءات في حال تم الاعتداء على هذا الحق.

إن صور الحق في الكرامة الإنسانية عديدة، ومنها الحق في الكرامة الإنسانية عن طريق منع التعذيب، والاعتداء، والتمييز، والعنف وما إلى ذلك، وإن الثابت بأن هناك بعض من الدول وقد اتجهت إلى حماية ذلك الحق بصورة مباشرة عن طريق النص عليها بدستورها وقوانينها الوضعية، وهناك بعض الدول قد اكتفت بوضع عقوبات في حال تم الاعتداء على ذلك الحق دون الإشارة إليه بصورة مباشرة.

يتمحور البحث حول موضوع الحماية الدستورية للحق في الكرامة الإنسانية، فبداية سنبين ماهية الحق في الكرامة الإنسانية ونشأتها في الديانات السماوية والمواثيق الدولية ومن ثم سنتطرق إلى بيان بعض صور هذا الحق الكريم، وأخيراً سنقوم بطرح موقف التشريع الإماراتي من هذا الحق.