bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cemented femoral stem design and postoperative periprosthetic fracture risk following total hip arthroplasty
Authors: Jain Sameer , Lamb Jonathan N. , Pandit Hemant 
Published: January 2024

Polished taper-slip (PTS) cemented stems have an excellent clinical track record and are the most common stem type used in primary total hip arthroplasty (THA) in the UK. Due to low rates of aseptic loosening, they have largely replaced more traditional composite beam (CB) cemented stems. However, there is now emerging evidence from multiple joint registries that PTS stems are associated with higher rates of postoperative periprosthetic femoral fracture (PFF) compared to their CB stem counterparts. The risk of both intraoperative and postoperative PFF remains greater with uncemented stems compared to either of these cemented stem subtypes. PFF continues to be a devastating complication following primary THA and is associated with high complication and mortality rates. Recent efforts have focused on identifying implant-related risk factors for PFF in order to guide preventative strategies, and therefore the purpose of this article is to present the current evidence on the effect of cemented femoral stem design on the risk of PFF.Cite this article: Bone Joint J 2024;106-B(1):11–15.
The impact of an ageing population on future increases in hip fracture burden
Authors: Harris Euan , Clement Nick , MacLullich Alasdair , Farrow Luke 
Published: January 2024

AimsCurrent levels of hip fracture morbidity contribute greatly to the overall burden on health and social care services. Given the anticipated ageing of the population over the coming decade, there is potential for this burden to increase further, although the exact scale of impact has not been identified in contemporary literature. We therefore set out to predict the future incidence of hip fracture and help inform appropriate service provision to maintain an adequate standard of care.MethodsHistorical data from the Scottish Hip Fracture Audit (2017 to 2021) were used to identify monthly incidence rates. Established time series forecasting techniques (Exponential Smoothing and Autoregressive Integrated Moving Average) were then used to predict the annual number of hip fractures from 2022 to 2029, including adjustment for predicted changes in national population demographics. Predicted differences in service-level outcomes (length of stay and discharge destination) were analyzed, including the associated financial cost of any changes.ResultsBetween 2017 and 2021, the number of annual hip fractures increased from 6,675 to 7,797 (15%), with a rise in incidence from 313 to 350 per 100,000 (11%) for the at-risk population. By 2029, a combined average projection forecast the annual number of hip fractures at 10,311, with an incidence rate of 463 per 100,000, representing a 32% increase from 2021. Based upon these projections, assuming discharge rates remain constant, the total overall length of hospital stay following hip fracture in Scotland will increase by 60,699 days per annum, incurring an additional cost of at least £25 million per year. Approximately five more acute hip fracture beds may be required per hospital to accommodate this increased activity.ConclusionProjection modelling demonstrates that hip fracture burden and incidence will increase substantially by 2029, driven by an ageing population, with substantial implications for health and social care services.Cite this article: Bone Joint J 2024;106-B(1):62–68.
Surgically reducing displaced distal radial fractures in children
Authors: Metcalfe David , Perry Daniel C. 
Published: January 2024

Displaced fractures of the distal radius in children are usually reduced under sedation or general anaesthesia to restore anatomical alignment before the limb is immobilized. However, there is growing evidence of the ability of the distal radius to remodel rapidly, raising doubts over the benefit to these children of restoring alignment. There is now clinical equipoise concerning whether or not young children with displaced distal radial fractures benefit from reduction, as they have the greatest ability to remodel. The Children’s Radius Acute Fracture Fixation Trial (CRAFFT), funded by the National Institute for Health and Care Research, aims to definitively answer this question and determine how best to manage severely displaced distal radial fractures in children aged up to ten years.Cite this article: Bone Joint J 2024;106-B(1):16–18.
Ancient Chinese Concepts of Understanding Law
Authors: Moiseeva Oksana , Rusanov Vitaly 
Published: January 2024

The article studies political and legal thought in Ancient China. Ancient Chinese thinkers in their works reflected their approaches to understanding law. Shang Yang in "Shang jun shu" ("The Book of the Ruler of the Shang Region") considers the law as the only regulator of social relations. Legalists equate the concept of law and law, law is considered as a set of rules of conduct emanating from the state and protected by it, which corresponds to the normative concept of legal understanding.
Another version of legal understanding was developed by representatives of Taoism. Lao Tzu in his work “Tao Te Ching” (“The Book of the Way and Grace”) paid special attention to the exposition of his teaching about Tao as the highest law of the development of the universe, nature, society and man. Tao acts as a natural law of immediate, direct action. Taoists are supporters of the natural law concept. In Confucius' work "Lun Yu" ("Conversations and Judgments"), the main regulator of social relations is not the Tao or the law, but the norms of ritual li. The right is not reduced to the law, but is considered as a set of legal relations, and the legal order that develops on the basis of them. Legal understanding of Confucius can be attributed to the sociological concept.
In the work of Xun Tzu, there are attempts to bring together the Confucian rules of the ritual "li" and the Legalist law "fa". A new, orthodox Confucianism is emerging, which no longer completely denies the law, but advocates management both on the basis of li and on the basis of fa, with the dominant role of li. In China, a new type of legal understanding is emerging - integrative or synthetic.
The article concludes that within the framework of the political and legal thought of Ancient China, there were various approaches to understanding law. After the proclamation in II BC. updated Confucianism with the official ideology of China, the integrative type of legal understanding becomes dominant, both in theory and in law enforcement practice.
E-Justice Texts: Factors of Borrowing Terms and Motivation
Authors: Kalmazova Nadezhda 
Published: January 2024

The research is based on the articles, overviews and reports of the participants of the academic research “Transformation of Legal Regulation of Relations, Connected with Application of Digital Technologies in Legal System and within the System of Enforcement of Court Rulings” from which there have been extracted and analyzed terms, recently borrowed from English into Russian, which occur in the texts of e-justice. There has been done an overview of the opinions of Russian and foreign linguists connected with the issue of acceptance of borrowings, that resulted in such features as expedience, common sense, and correspondence to the target language standard. There have been generalized extralinguistic and linguistic factors of borrowings.
There have been stated that transmitted terms are borrowed in a ready-made form. They are motivated lexemes in both languages. Being included in the complex hierarchical structure of micro- and macro-fields, the transmitted terms become integral elements of the term system, acquiring the semantic properties of the basic system-forming terms. Their Greek and Latin term elements support the process of internationalization of vocabulary and the ways of its formation.
Some unmotivated and partially motivated basic terms of the computer branch of knowledge are frequency terms for digital texts. These interdisciplinary terms meet the requirements of brevity, unambiguity, and lack of synonymity, which indicates their ideal compliance with the terminological nomination.
Real-Time Face Mask Detection in Mass Gathering to reduce COVID-19 Spread
Authors: Soner Swapnil , Litoriya Ratnesh , Khatri Ravi , Hussain Ali Asgar , Pagare Shreyas , Kushwaha Sunil Kumar 
Published: January 2024

The outbreak of Covid 19 (coronavirus) pandemic has become one of the lethal health crises worldwide. So far no effective and completely curable vaccine or any alternative has been provided to stop this transmission. This virus gets transmitted from a person when they sneeze or when they speak also in the form of respiratory droplets. According to leading and well known scientists, wearing face masks and maintaining six feet of social distance are the most substantial protections to limit the virus’s spread. In the proposed model we have used the Convolutional Neural Network(CNN) algorithm of Deep Learning(DL) to ensure efficient real-time mask detection. We have divided the system in two parts – 1. Train Face Mask Detector 2. Apply Face Mask Detector for better understanding. This is a real time application which is used to discover or detect the person who is wearing a mask at proper position or not. The system has achieved an accuracy of 99% after being trained with the dataset, which contains around 2500 images of width and height 224×224. This type of model just needs to be integrated with a camera and the rest of the detection will be performed, like at airports, offices, railway stations, malls etc., to check whether a government guidelines are properly being followed or not.
Job Satisfaction Among Private and Public College/Campus Teachers of Madhesh Pradesh in Nepal
Authors: Shrestha Binay , Agrawal Neha 
Published: January 2024

Job satisfaction among the teachers has been found as a fundamental element influencing the performance of the organisation. The purpose of this study was to examine the Job satisfaction among private and public college/campus teachers of Madhesh Pradesh in Nepal. The current research work is based on Herzberg’s Two Factor Theory of Motivation and Job satisfaction. The variables included in the study are independent variables of intrinsic factors i.e., Job Itself, Promotion & recognition and extrinsic factors i.e., Colleagues, Pay &benefits, Students and Physical environment with Job satisfaction as a dependent variable. A descriptive and analytical research design using questionnaire method on 5-point Likert scale was used to collect and analyse the data. The study was conducted with the sample size of 250 teachers teaching in private/public campuses of Madhesh Pradesh in Nepal. The data were analysed through the use of descriptive statistics, correlation, multiple regression analysis and t-test using SPSS software. The results of the study infer that both the extrinsic and intrinsic factors are important in determining the job satisfaction level of teachers working in higher education sector of Madhesh Pradesh in Nepal. Few of the extrinsic factors like only pay & benefits and physical environment are not found to have the significant influence on job satisfaction level of teachers.
Kondycja finansowa „firm zombie” notowanych na GPW w Warszawie
Authors: Kuciński Andrzej 
Published: January 2024

Artykuł porusza problem występowania „firm zombie” w gospodarce. Firmy zombie najczęściej definiuje się jako przedsiębiorstwa nierentowne, zadłużone, przeżywające problemy finansowe, które niejednokrotnie wykazują ujemny kapitał własny. Celem artykułu jest przedstawienie kondycji finansowej firm zombie notowanych na rynku giełdowym Giełdy Papierów Wartościowych w Warszawie, w tym ukazanie przesłanek zagrażających kontynuowaniu działalności gospodarczej przez firmy zombie. Dane z lat 2018–2021 pochodzą z bazy danych Notoria Serwis, które dotyczą rocznych sprawozdań finansowych spółek notowanych na rynku giełdowym GPW w Warszawie. W artykule wykorzystano jako główne metody badawcze analizę literatury oraz analizę finansową. Z rezultatów badań wynika, że na rynku kapitałowym w Polsce występują firmy zombie z ujemnym kapitałem własnym: w latach 2018–2021 wśród spółek notowanych na rynku giełdowym GPW stanowiły one 2,9–3,6%. Najliczniejsza grupa firm zombie z ujemnym kapitałem własnym to podmioty gospodarcze zaliczane do kategorii małych przedsiębiorstw. Firmy zombie notowane na rynku kapitałowym w Polsce charakteryzowały przede wszystkim problemy z zapewnieniem rentowności, z zachowaniem płynności finansowej, a ich działalności towarzyszyło duże ryzyko upadłości. Firmy zombie mogły kontynuować swoją działalność głównie za sprawą wygenerowanej nadwyżki finansowej, która pozwalała na regulowanie rat kapitałowych wraz z odsetkami. Na kontynuowanie działalności przez firmy zombie miały wpływ głównie niskie stopy procentowe utrzymywane przez władze monetarne w Polsce w latach 2018–2021, udzielane gwarancje rządowe podmiotom gospodarczym ubiegającym się o kredyty bankowe, subsydiowanie działalności nierentownej, czy też udzielana pomoc państwa kierowana do firm działających w warunkach pandemii COVID-19.
Torus counting and self-joinings of Kleinian groups
Authors: Edwards Sam , Lee Minju , Oh Hee 
Published: January 2024

AbstractFor any integerd≥1{d\geq 1}, we obtain counting and equidistribution results for tori with small volume for a class ofd-dimensional torus packings, invariant under a self-joiningΓρ<∏i=1dPSL2⁡(ℂ){\Gamma_{\rho}<\prod_{i=1}^{d}\operatorname{PSL}_{2}(\mathbb{C})}of a Kleinian group Γ formed by ad-tuple of convex-cocompact representationsρ=(ρ1,…,ρd){\rho=(\rho_{1},\dots,\rho_{d})}. More precisely, if𝒫{\mathcal{P}}is aΓρ{\Gamma_{\rho}}-admissibled-dimensional torus packing, then for any bounded subsetE⊂ℂd{E\subset\mathbb{C}^{d}}with∂⁡E{\partial E}contained in a proper real algebraic subvariety, we havelims→0⁡sδL1⁢(ρ)⋅#⁢{T∈𝒫:Vol⁡(T)>s,T∩E≠∅}=c𝒫⋅ωρ⁢(E∩Λρ).\lim_{s\to 0}{s^{\delta_{L^{1}}({\rho})}}\cdot\#\{T\in\mathcal{P}:% \operatorname{Vol}(T)>s,\,T\cap E\neq\emptyset\}=c_{\mathcal{P}}\cdot\omega_{% \rho}(E\cap\Lambda_{\rho}).HereδL1⁢(ρ){\delta_{L^{1}}(\rho)},0<δL1⁢(ρ)≤2/d{0<\delta_{L^{1}}(\rho)\leq 2/\!{\sqrt{d}}}, denotes the critical exponent of the self-joiningΓρ{\Gamma_{\rho}}with respect to theL1{L^{1}}-metric on the product∏i=1dℍ3{\prod_{i=1}^{d}\mathbb{H}^{3}},Λρ⊂(ℂ∪{∞})d{\Lambda_{\rho}\subset(\mathbb{C}\cup\{\infty\})^{d}}is the limit set ofΓρ{\Gamma_{\rho}}, andωρ{\omega_{\rho}}is a locally finite Borel measure onℂd∩Λρ{\mathbb{C}^{d}\cap\Lambda_{\rho}}which can be explicitly described. The class of admissible torus packings we consider arises naturally from the Teichmüller theory of Kleinian groups. Our work extends previous results of [H. Oh and N. Shah, The asymptotic distribution of circles in the orbits of Kleinian groups, Invent. Math. 187 2012, 1, 1–35] on circle packings (i.e., one-dimensional torus packings) tod-torus packings.
A note on the post quantum-Sheffer polynomial sequences
Authors: Khan Subuhi , Haneef Mehnaz 
Published: January 2024

Abstract
In this article, the post quantum analogue of Sheffer polynomial sequences is introduced using concepts of post quantum calculus. The series representation, recurrence relations, determinant expression and certain other properties of this class are established. Further, the 2D-post quantum-Sheffer polynomials are introduced via generating function and their properties are established. Certain identities and integral representations for the 2D-post quantum-Hermite polynomials, 2D-post quantum-Laguerre polynomials, and 2D-post quantum-Bessel polynomials are also considered.
The ideal structure of partial skew groupoid rings with applications to topological dynamics and ultragraph algebras
Authors: Bagio Dirceu , Gonçalves Daniel , Estácio Moreira Paula Savana , Öinert Johan 
Published: January 2024

Abstract
Given a partial action α of a groupoid G on a ring R, we study the associated partial skew groupoid ring

R

⋊
α

G

{R\rtimes_{\alpha}G}

,
which carries a natural G-grading.
We show that there is a one-to-one correspondence between the G-invariant ideals of R and the graded ideals of the G-graded ring

R

⋊
α

G

{R\rtimes_{\alpha}G}

. We provide sufficient conditions for primeness, and necessary and sufficient conditions for simplicity of

R

⋊
α

G

{R\rtimes_{\alpha}G}

. We show that every ideal of

R

⋊
α

G

{R\rtimes_{\alpha}G}

is graded if and only if α has the residual intersection property. Furthermore, if α is induced by a topological partial action θ, then we prove that minimality of θ is equivalent to G-simplicity of R, topological transitivity of θ is equivalent to G-primeness of R, and topological freeness of θ on every closed invariant subset of the underlying topological space is equivalent to α having the residual intersection property. As an application, we characterize condition (K) for an ultragraph in terms of topological properties of the associated partial action and in terms of algebraic properties of the associated ultragraph algebra.
Spectral invariance of quasi-Banach algebras of matrices and pseudodifferential operators
Authors: Gröchenig Karlheinz , Pfeuffer Christine , Toft Joachim 
Published: January 2024

Abstract
We extend the stability and spectral invariance of convolution-dominated matrices to
the case of quasi-Banach algebras

p
<
1

{p<1}

. As an application, we
construct a spectrally invariant quasi-Banach algebra of
pseudodifferential operators with non-smooth symbols that generalize Sjöstrand’s results.
On the modular isomorphism problem for groups of nilpotency class 2 with cyclic center
Authors: García-Lucas Diego , Margolis Leo 
Published: January 2024

Abstract
We show that the modular isomorphism problem has a positive answer for groups of nilpotency class 2 with cyclic center, i.e., that for such p-groups G and H an isomorphism between the group algebras FG and FH implies an isomorphism of the groups G and H for F the field of p elements. For groups of odd order this implication is also proven for F being any field of characteristic p. For groups of even order we need either to make an additional assumption on the groups or on the field.
Regularity of fractional heat semigroups associated with Schrödinger operators on Heisenberg groups
Authors: Sun Chuanhong , Li Pengtao , Lou Zengjian 
Published: January 2024

Abstract
Let

L
=

-

Δ

ℍ
n

+
V

{L=-{\Delta}_{\mathbb{H}^{n}}+V}

be a Schrödinger operator on Heisenberg groups

ℍ
n

{\mathbb{H}^{n}}

, where

Δ

ℍ
n

{{\Delta}_{\mathbb{H}^{n}}}

is the sub-Laplacian, the nonnegative potential V belongs to the reverse Hölder class

B

𝒬
/
2

{B_{\mathcal{Q}/2}}

. Here

𝒬

{\mathcal{Q}}

is the homogeneous dimension of

ℍ
n

{\mathbb{H}^{n}}

. In this article, we introduce the fractional heat semigroups

{

e

-

t
⁢

L
α

}

t
>
0

{\{e^{-tL^{\alpha}}\}_{t>0}}

,

α
>
0

{\alpha>0}

, associated with L. By the fundamental solution of the heat equation, we estimate the gradient and the time-fractional derivatives of the fractional heat kernel

K

α
,
t

L

⁢

(
⋅
,
⋅
)

{K_{\alpha,t}^{L}(\,\cdot\,,\cdot\,)}

, respectively. As an application, we characterize the space

BMO
L
γ

⁢

(

ℍ
n

)

{\mathrm{BMO}_{L}^{\gamma}(\mathbb{H}^{n})}

via

{

e

-

t
⁢

L
α

}

t
>
0

{\{e^{-tL^{\alpha}}\}_{t>0}}

.
Sharp Sobolev and Adams–Trudinger–Moser embeddings on weighted Sobolev spaces and their applications
Authors: do Ó João Marcos , Lu Guozhen , Ponciano Raoní 
Published: January 2024

Abstract
We derive sharp Sobolev embeddings on a class of Sobolev spaces with potential weights without assuming any boundary conditions. Moreover, we consider the Adams-type inequalities for the borderline Sobolev embedding into the exponential class with a sharp constant. As applications, we prove that the associated elliptic equations with nonlinearities in both forms of polynomial and exponential growths admit nontrivial solutions.
On the comparison of translation invariant convex differentiation bases
Authors: Japaridze Irakli 
Published: January 2024

Abstract
It is known that if B and

B
′

{B^{\prime}}

are translation invariant convex density differentiation bases and the maximal operators associated to them locally majorize each other, then B and

B
′

{B^{\prime}}

differentiate the integrals of the same class of non-negative functions. We show that under the same conditions it is not possible to assert more about similarity of the differential properties of B and

B
′

{B^{\prime}}

in view of their positive equivalence.
Multiplicity result for a (p(x),q(x))-Laplacian-like system with indefinite weights
Authors: Kefi Khaled , Nefzi Chaima 
Published: January 2024

Abstract
Under some suitable conditions,
we show that at least three weak solutions exist for a system of differential equations involving the

(

p
⁢

(
x
)

,

q
⁢

(
x
)

)

{(p(x),q(x))}

Laplacian-like with indefinite weights. The proof is related to the Bonanno–Marano critical theorem (Appl. Anal.
89 (2010), 1–10).
Centralizing identities involving generalized derivations in prime rings
Authors: De Filippis Vincenzo , Gupta Pallavee , Tiwari Shailesh Kumar , Prajapati Balchand 
Published: January 2024

Abstract
Let

ℛ

{\mathcal{R}}

be a prime ring of characteristic not equal to 2, let

𝒰

{\mathcal{U}}

be Utumi quotient ring of

ℛ

{\mathcal{R}}

and let

𝒞

{\mathcal{C}}

be the extended centroid of

ℛ

{\mathcal{R}}

. Let Δ be a generalized derivation on

ℛ

{\mathcal{R}}

, and let

δ
1

{\delta_{1}}

and

δ
2

{\delta_{2}}

be derivations on

ℛ

{\mathcal{R}}

. Let

p
⁢

(
v
)

{p(v)}

be a multilinear polynomial on

ℛ

{\mathcal{R}}

, which is non-central valued on

ℛ

{\mathcal{R}}

. If

δ
1

⁢

(

Δ
2

⁢

(

p
⁢

(
v
)

)

⁢
p
⁢

(
v
)

)

=

δ
2

⁢

(

Δ
⁢

(

p
⁢

(
v
)

2

)

)

{\delta_{1}(\Delta^{2}(p(v))p(v))=\delta_{2}(\Delta(p(v)^{2}))}

for all

v
∈

ℛ
n

{v\in\mathcal{R}^{n}}

, then we find the complete description of Δ,

δ
1

{\delta_{1}}

and

δ
2

{\delta_{2}}

.
Numerical radii of operator matrices in terms of certain complex combinations of operators
Authors: Conde Cristian , Kittaneh Fuad , Moradi Hamid Reza , Sababheh Mohammad 
Published: January 2024

Abstract
Operator matrices have played a significant role in the study of properties of the numerical radii of Hilbert space operators. This paper presents several new sharp upper bounds for the numerical radii of operator matrices in terms of certain complex combinations. The obtained results reveal many interesting properties of the numerical radius.