bluuebunny/crossref_metadata_2025_split huggingface dataset:
Relevant clinical factors for early extubation in living-donor liver transplantation: A single-center retrospective cohort study
Authors: Jeon Soeun , Lim Dong Gun , Kim Hyunjee , You Seung-Bin , Kim Hye-Jin , Yoon Jung-Pil , Yang Kwangho , Park Soon-Ji , Ri Hyun-Su 
Published: January 2025

BACKGROUND
Clinical guidelines for early extubation after liver transplantation remain lacking, with significant variations in the rates of early extubation across transplantation centers.
AIM
To identify clinical factors, including the use of epidural analgesia, associated with early extubation in living-donor liver transplantation (LDLT).
METHODS
The medical records of LDLT recipients were analyzed in this study, categorizing them based on extubation timing as delayed (leaving the operating room without extubation) or early (tracheal tube removed immediately after surgery). A multivariate binary logistic regression analysis was performed. Subgroup analysis was conducted, excluding patients contraindicated for epidural analgesia owing to significant coagulopathy.
RESULTS
Total of 159 patients, 93 (58.5%) underwent early extubation. Relevant clinical factors of early extubation were shorter anhepatic time [adjusted odds ratio (OR) = 0.439, 95% confidence interval (CI): 0.232-0.831; P = 0.011], absence of high-dose vasoactive drug use at the end of surgery (OR = 0.235, 95%CI: 0.106-0.519; P < 0.001), and the use of epidural analgesia (OR = 15.730, 95%CI: 1.919-128.919; P = 0.010). In a subgroup analysis of 67 patients, epidural analgesia remained a relevant clinical factor for early extubation (adjusted OR = 19.381, 95%CI: 2.15-174.433; P = 0.008).
CONCLUSION
Shorter anhepatic time, absence of high-dose vasoactive drug use at the end of surgery, and the use of epidural analgesia are relevant clinical factors of early extubation following LDLT.
Maligni tumor testisa u šesnaestomjesečnog dječaka: prikaz slučaja
Authors: Roganović Jelena , Đorđević Gordana , Glavan Neda 
Published: January 2025

Uvod: Maligni tumori testisa u djece su rijetki. Cilj rada je prikazati kliničku sliku, dijagnostički pristup i liječenje tumora testisa na slučaju dječaka s endodermalnim sinus tumorom. Prikaz slučaja: Šesnaestomjesečni dječak upućen je na pedijatrijski pregled zbog bezbolne skrotalne mase. Fizikalnim pregledom utvrđena je tvrda bezbolna palpabilna tvorba u desnom skrotumu, a u laboratorijskim nalazima visoke razine serumskog alfa-fetoproteina. Ultrazvukom i kompjuteriziranom tomografijom testisa, zdjelice i abdomena verificiran je tumor desnog testisa s pojačanom vaskularizacijom. Učinjena je radikalna desnostrana orhidektomija. Patohistološkom analizom postavljena je dijagnoza prepubertetskog tumora žumanjčane vreće (endodermalni sinus tumor). U daljnjem tijeku je redovito praćen klinički, laboratorijski i ultrazvučno. Četiri godine nakon operativnog zahvata dječak je bez znakova bolesti, urednog rasta i razvoja. Zaključak: Sumnja na maligni tumor u dječaka s uvećanjem testisa te pravovremena laboratorijska i slikovna evaluacija omogućuju optimalan terapijski pristup i ishod bolesti.
Inicijativa svjetskih trendova u dojenju: izvješće za Republiku Hrvatsku
Authors: Zakarija-Grkovic Irena , Pavičić Bošnjak Anita , Barić Dinka , Zanze Ivana , Draušnik Željka 
Published: January 2025

Aim: The World Breastfeeding Trends Initiative (WBTi) serves to assess implementation of national infant and young child feeding policies, programs and practices. Results of the assessment are published on the WBTi website. So far, 100 countries have produced a report, including Croatia in 2015 and 2024. In this paper we present the 2024 results for the Republic of Croatia. Methods: A multidisciplinary working group was formed from members of the Croatian Ministry of Health National Breastfeeding Committee. The ten policy and program indicators were scored from 0 to 10, whereas the practice indicators were presented as percentages or absolute numbers. A draft report was sent to 12 partner organisations with an interest in infant and young child feeding. Based on their feedback, the report was revised, translated into English and sent to the WBTi office for validation. Results: The Republic of Croatia received a total score of 66.5 of 100 for its infant and young child feeding policies and programs, placing it third in Europe. Highest scores were obtained for indicators 'National policy, governance and funding' and 'Maternity protection'. Lowest scores were obtained for indicators 'Infant feeding and HIV' and 'Infant and young child feeding during emergencies'. Positive practices related to the introduction of complementary foods and the initiation of breastfeeding within one hour of birth. Exclusive breastfeeding rates, avoidance of bottle feeding and median duration of breastfeeding were scored low. Conclusion: A 'Call to action' is needed in order to improve infant and young child feeding in Croatia.
Assessment of a Counterintuitive Trading Strategy Based on Market Microstructure
Authors: Samsa Greg 
Published: January 2025

In general, day trading has little support from empirical research and a justified reputation of being dangerously unsound. It often relies on positive price momentum, regardless of the underlying value of the stock. Here, we assess multiple versions of a protocolized day trading strategy that relies on overreaction to bad corporate news, as reflected in premarket prices. Relevant stocks are purchased at the open, when there is an imbalance between buy and sell orders, and held for no longer than a single trading day. The companies in question constitute a basket of deplorables, and the trading strategies rely on mean regression rather than momentum, and also benefit from high levels of inter-day price volatility as the process of price discovery proceeds. Observed returns were positive for all versions of the strategy. Conceptual support is provided by the notion that active money managers have individual incentives to immediately rush toward the door, and those incentives should continue into the future. In conclusion, we have described an unusual and counterintuitive strategy that relies on a conceptually plausible, yet rare and fleeting market inefficiency. It is based on the microstructure of the stock market.
Neoliberal and Transformation of the University of Botswana: From Public Education to Entrepreneurism
Authors: Marobela M. N. 
Published: January 2025

This article examines the concept of entrepreneurial university and its applicability to Botswana. This is a general conceptual analysis with a special focus directed at the University of Botswana. It traces its emergence and the extent to which it is embraced as an alternative to traditional model of education under the rubric of state-owned public university. Although entrepreneurial educational model is increasingly, getting global attention, it is not so widely established in the global south, where the role of the public sector in providing social services is still imperative. Understandably so because many people in developing countries are still struggling with the basics hence privately paid education whose raison-detre is profit making will not be affordable unless funded or subsidised by the state. The research provides insights into the influx of newly established privately owned universities which could be classified as entrepreneurial. Researchers contend that their emergence is driven by the neoliberal agenda in education which underpins the market supremacy and private universities as contributing to investment and job creation. These universities are not directly funded by the state, they are autonomous and self-run; the government only sponsors the students enrolled in their courses by paying their tuition fees.
On spherical shells containing all the zeros of a quaternionic polynomial
Authors: Milovanović Gradimir V. , Mir Abdullah , Thoker Wasim Ahmad , Bhat Ashiq Hussain 
Published: January 2025

Abstract
The goal of this paper is to find spherical shells that contain all of the zeros of a unilateral polynomial with quaternionic coefficients. These bounds are derived using Geršgorin-type results for the norms of the eigenvalues of a quaternionic matrix and matrix similarity. In addition to yielding some interesting implications, our results also bring certain classical results of Diaz–Barrero, Egozcue, Bidkham, and others into the quaternionic setting.
Weil representations of twisted loop groups of type A

n

(2)
Authors: Chen Yanze , Zhu Yongchang 
Published: January 2025

Abstract
We construct Weil representations of twisted loop groups of type

A
n

(
2
)

{A_{n}^{(2)}}

over local fields. We prove that the associated cover of the twisted loop group
is the two fold metaplectic cover of the affine Kac–Moody group of type

A
n

(
2
)

{A_{n}^{(2)}}

given by Patnaik and Puskas.
On the stabilizer of the graph of linear functions over finite fields
Authors: Smaldore Valentino , Zanella Corrado , Zullo Ferdinando 
Published: January 2025

Abstract
In this paper we will study the action of

𝔽

q
n

2
×
2

{\mathbb{F}_{q^{n}}^{2\times 2}}

on the graph of an

𝔽
q

{{{\mathbb{F}}_{q}}}

-linear function of

𝔽

q
n

{{{\mathbb{F}}_{q^{n}}}}

to itself. In particular, we will see that, under certain combinatorial assumptions, its stabilizer (together with the sum and product of matrices) is a field. We will also give some examples where this is not the case. We will also connect such a stabilizer to the right idealizer of the rank-metric code defined by the linear function, and give some structural results in the case where the polynomials are partially scattered.
Bounding the number of p'-degree characters from below
Authors: Keller Thomas Michael , Yang Yong 
Published: January 2025

Abstract
Let G be a finite group of order divisible by a prime p
and let

P
∈

Syl
p

⁡

(
G
)

{P\in{\operatorname{Syl}}_{p}(G)}

.
We prove a recent conjecture by Hung stating that

|

Irr

p
′

⁡

(
G
)

|

≥

exp
⁡

(

P
/

P
′

)

-
1

p
-
1

+

2
⁢

p
-
1

-
1

{|{\operatorname{Irr}}_{p^{\prime}}(G)|\geq\frac{\exp(P/P^{\prime})-1}{p-1}+2%
\sqrt{p-1}-1}

.
Let

a
≥
2

{a\geq 2}

be an integer and suppose that

p
a

{p^{a}}

does not exceed the exponent of the center of P.
We also show that the number of conjugacy classes of elements of G for which

p
a

{p^{a}}

is the exact p-part of their order is at least

p

a
-
1

{p^{a-1}}

.
Lower bounds for the number of number fields with Galois group GL2(𝔽ℓ)
Authors: Ray Anwesh 
Published: January 2025

Abstract
Let

ℓ
≥
5

{\ell\geq 5}

be a prime number and let

𝔽
ℓ

{\mathbb{F}_{\ell}}

denote the finite field with

ℓ

{\ell}

elements. We show that the number of Galois extensions of the rationals with Galois group isomorphic to

GL
2

⁡

(

𝔽
ℓ

)

{\operatorname{GL}_{2}(\mathbb{F}_{\ell})}

and absolute discriminant bounded above by X is asymptotically at least

X

ℓ
/

(

12
⁢

(

ℓ
-
1

)

⁢
#
⁢

GL
2

⁡

(

𝔽
ℓ

)

)

log
⁡
X

{\frac{X^{{\ell}/({12(\ell-1)\#\operatorname{GL}_{2}(\mathbb{F}_{\ell})})}}{%
\log X}}

. We also obtain a similar result for the number of surjective homomorphisms

ρ
:

Gal
⁡

(

ℚ
¯

/
ℚ

)

→

GL
2

⁡

(

𝔽
ℓ

)

{\rho:\operatorname{Gal}(\bar{\mathbb{Q}}/\mathbb{Q})\rightarrow\operatorname{%
GL}_{2}(\mathbb{F}_{\ell})}

ordered by the prime to

ℓ

{\ell}

part of the Artin conductor of ρ.
The ranks of (a,b)-Fibonacci sequences and congruences for certain partition functions and Ramanujan's mock theta functions
Authors: Xia Ernest X. W. 
Published: January 2025

Abstract
In this paper, employing some identities due to Newman, we present a new method for discovering infinite families of congruences and strange congruences
for

c
⁢

(
n
)

{c(n)}

which is defined by

∑

n
=
0

∞

c
⁢

(
n
)

⁢

q
n

=

∏

k
=
1

∞

(

1
-

q
k

)

r

⁢

(

1
-

q

k
⁢
t

)

s

.

\sum_{n=0}^{\infty}c(n)q^{n}=\prod_{k=1}^{\infty}(1-q^{k})^{r}(1-q^{kt})^{s}.

Here

r
,
s
,
t

{r,s,t}

are some
integers with

t
>
1

{t>1}

. By our method, in order to discover infinite families of congruences modulo M for

c
⁢

(
n
)

{c(n)}

,
it suffices to compute the ranks of

(
a
,
b
)

{(a,b)}

-Fibonacci sequences modulo M. As applications,
we establish many infinite families of congruences and strange congruences for some Ramanujan’s mock theta functions and certain partition functions,
such as, a partition function related to mock theta function

ω
⁢

(
q
)

{\omega(q)}

and broken k-diamond partitions.
Cylindrical ample divisors on Du Val del Pezzo surfaces
Authors: Sawahara Masatomo 
Published: January 2025

Abstract
The existence of polarized cylinders in normal projective varieties corresponds to admitting non-trivial

𝔾
a

{\mathbb{G}_{a}}

-action on their affine cones defined by the polarized pairs.
Note that a criterion for polarized cylinders in smooth del Pezzo surfaces is studied.
Hence, we observe the existing condition of polarized cylinders in del Pezzo surfaces with at worst Du Val singularities.
Let S be a del Pezzo surface with at worst Du Val singularities of degree

≥
3

{\geq 3}

.
We then construct an H-polar cylinder for any ample

ℚ

{\mathbb{Q}}

-divisor H on S.
n-tilting pairs and n-cotilting subcategories over comma categories
Authors: Yuan Yuan , He Jian , Wu Dejun , Wang Yongduo 
Published: January 2025

Abstract
Let

𝒜

{\mathcal{A}}

and

ℬ

{\mathcal{B}}

be abelian categories, and

𝐓
:

𝒜
→
ℬ

{\mathbf{T}:\mathcal{A}\rightarrow\mathcal{B}}

be a left exact additive functor. Then one has a comma category

(

ℬ
↓
𝐓

)

{(\mathcal{B}{\downarrow}\mathbf{T})}

. Under some natural assumptions, we prove that

(
𝒳
,
𝒴
)

{(\mathcal{X},\mathcal{Y})}

and

(

𝒳
′

,

𝒴
′

)

{(\mathcal{X}^{\prime},\mathcal{Y}^{\prime})}

are n-tilting pairs in

𝒜

{\mathcal{A}}

and

ℬ

{\mathcal{B}}

, respectively, if and only if

(

𝔇

𝒳
′

𝒳

,

𝔇

𝒴
′

𝒴

)

{(\mathfrak{D}^{\mathcal{X}}_{\mathcal{X}^{\prime}},\mathfrak{D}^{\mathcal{Y}}%
_{\mathcal{Y}^{\prime}})}

is an n-tilting pair in

(

ℬ
↓
𝐓

)

{(\mathcal{B}{\downarrow}\mathbf{T})}

. Furthermore, we also show that

𝒳

{\mathcal{X}}

and

𝒴

{\mathcal{Y}}

are n-cotilting subcategories of

𝒜

{\mathcal{A}}

and

ℬ

{\mathcal{B}}

, respectively, if and only if

𝔇
𝒴
𝒳

{\mathfrak{D}^{\mathcal{X}}_{\mathcal{Y}}}

is an n-cotilting subcategory of

(

ℬ
↓
𝐓

)

{(\mathcal{B}{\downarrow}\mathbf{T})}

. Finally, we construct cotilting cotorsion pairs over

(

ℬ
↓
𝐓

)

{(\mathcal{B}{\downarrow}\mathbf{T})}

using cotilting cotorsion pairs over

𝒜

{\mathcal{A}}

and

ℬ

{\mathcal{B}}

.
Uniqueness theorems in the steady vibration problems of the Moore–Gibson–Thompson thermoporoelasticity
Authors: Svanadze Merab 
Published: January 2025

Abstract
In this paper, the linear model of Moore–Gibson–Thompson thermoporoelasticity is considered and the governing equations of motion and
steady vibrations are given. The basic system of equations of steady vibrations with respect to the displacement vector, the changes
of temperature and fluid pressure are proposed. Then the radiation conditions are established and Green’s first identity is obtained. Finally, on the basis of
this identity, the uniqueness theorems for classical solutions of the boundary value problems of steady vibrations in the theory of MGT thermoporoelaticity are proved.
Diversification of the educator workforce: toward communities of practice and integrated networks of care
Authors: Holbert Romena , Reyes Ganiva , Flick Belinda L. , Bowman Connie , Clements Trey , Schwartz Tammy , Agiro Christa , McIntosh Novea , Nenonene Rochonda , Sumerfield Sandra 
Published: January 2025

Abstract
Diversification of the Educator Workforce (DEW) is an urgent need requiring intervention to push against many deeply entrenched systemic barriers (Chapman, Anne. 2021. Opening doors: Strategies for advancing racial diversity in Wisconsin’s teacher workforce. Wisconsin Policy Forum. Available at: https://wispolicyforum.org/wp-content/uploads/2021/03/OpeningDoors_FullReport.pdf; James, Weade & Jacqueline Rodriguez. 2020. The use of networked improvement communities in educator preparation programs to improve teacher shortage and diversity. Success in High-Need Schools Journal 16(1). 10–22). This collaborative autoethnographic case study (see e.g., Chang Heewon, Ngunjiri Faith & Hernandez Kathy-Ann. 2016. Collaborative autoethnography. New York: Routledge) illustrates how a group of individuals across institutions collaborated to dismantle barriers to students who are Black, Indigenous, and People of Color (BIPOC) entering the educator workforce. More specifically, this study reveals how members embodied a collaborative and non-competitive approach to overcoming systemic barriers that BIPOC teacher candidates experience. Through this collaborative approach, the unique contributions of members were evident, and tenets of critical consciousness and feminist theory supported the development of an integrated network of care (Reyes, Ganiva. 2021. Integrated networks of care: Supporting teachers who care for Latina mothering students. Critical Studies in Education 62(4). 471–485). This case study identifies positive impacts of communal support of DEW workers and illuminates invisibilized labor of professional stakeholders and BIPOC students.
IoT-based Monitoring and Controlling System for Energy Consumption Costs from Battery Supply
Authors: Hakim Muhammad Fahmi , Kusuma Wijaya , Su’udi Ismail , Ridzki Imron , Setiawan Awan , Syamsuri Tresna Umar 
Published: January 2025

A battery must be monitored in real-time to ensure it meets its designed lifetime. Additionally, energy costs from the battery supply must be calculated and controlled to enable solar power plant entrepreneurs to profit practically. This project aims to develop an IoT-based monitoring and controlling system for battery conditions, especially energy consumption costs from battery supply. This system uses an ESP32 microcontroller, INA219 sensor, single channel 5 VDC optocoupler relay, and OLED display. The ESP32 processes the current and voltage from the INA219 sensor and then displays on the OLED display. The parameters displayed include consumed energy costs, current, voltage, power, consumed energy, and used battery capacity. Data is also sent to the Blynk website using IoT, allowing these parameters to be monitored in real time. Based on test results, the average error in calculating energy costs is 0.046%, and other measured or calculated parameters are below 1%. This system can also turn the power flow to the load on and off using the Blynk platform. It can be concluded that the system works well, enabling IoT-based monitoring and control of battery parameters.
Idénymunka és idénymunkások a gyümölcstermesztésben. Hazai munkaerőpiaci folyamatok és közelképek európai összevetésben
Authors: Kovács Katalin , Hamza Eszter , Rácz Katalin , Swain Nigel John , Váradi Monika Mária 
Published: January 2025

A tanulmány a magyar mezőgazdaság munkaintenzív ágazataiban jelentkező tartós munkaerőhiány problémáját tárgyalja. A magyarországi folyamatok nem választhatók el a szezonális munka 1980-as években megkezdődött globalizálódásától, ami a munkaerőpiac szegmentálódásával és a migráns idénymunkások alkalmazásának elterjedésével járt.
Magyarországon a szezonális foglalkoztatást a rendszerváltást követő években munkaerőtöbblet jellemezte, részint az ágazatból kikerült és munkanélkülivé vált embereknek, részint a már ekkor a határon túlról, elsősorban Erdélyből érkező szezonális munkások növekvő számának köszönhetően. Az uniós munkaerőpiac megnyílása és a 2008-as gazdasági válság átalakította a szezonális mezőgazdasági munkások összetételét: a jellemzően magyar ajkú és nemzetiségű, magasabban kvalifikált erdélyiek Európa más országai felé vették az irányt, helyükre szegénységben élő, képzetlen romák érkeztek a határon túlról. A 2008-2015 közötti években a válságkezelés a rendelkezésre álló hazai szezonális munkaerő számát is jelentősen csökkentette, hiszen az érintetteket a közfoglalkoztatás új rendszerébe terelte.
A 2015-ben elindult újraiparosítás következtében azok a képzetlen emberek is el tudtak helyezkedni a munkaerőpiacon, akik az agrárvállalkozók szezonális munkásai voltak, s ennek eredményeként az ágazatban nem csupán a munkaerőhiány erősödött, de egyre kevesebb lett a mezőgazdasági munkára alkalmasnak és megbízhatónak tartott munkavállalók száma is.
Napjainkra a szezonális munkaerő piaca etnicizálódott; az évtizedek óta masszívan újratermelődő szegénység s egyes lokális társadalmak mélyülő szegregálódása az oka annak, hogy a gazdálkodók szinte kizárólag roma munkavállalókra tudnak támaszkodni, s fordítva, a roma családok megélhetési stratégiáiban a mezőgazdaságban végzett időszakos munka alapvető fontosságú maradt.
A tanulmány két eltérő természeti, klimatikus adottságú és gazdasági helyzetű térségben, a Nagykőrösi és a Bonyhádi járás területén végzett empirikus kutatás eredményei alapján részletesen bemutatja, hogy a gyümölcságazat gazdálkodói miként érzékelik, és milyen okokkal magyarázzák a munkaerőhiányt, valamint elemzi azokat a stratégiákat, gyakorlatokat, amelyek e kihíváshoz való alkalmazkodást szolgálják. A vállalkozók egyfelől igyekeznek megtartani alkalmas, megbízható embereiket minél hosszabbra nyúló foglalkoztatással (ezt segíti a gyümölcsfajták diverzifikációja) és a munkafeltételek javításával, másfelől mérsékelni kívánják munkaerőigényüket a tevékenységek, illetve a termékszerkezet diverzifikációja, valamint egyes termesztési fázisok gépesítése révén.
Determining the Role of Psychological Hardiness and Resilience in Predicting Psychological Differentiation in Secondary School Girls of Bandar Abbas City
Authors: Khanjani Azita , Beirami Ashraf , Javdan Moosa 
Published: January 2025

Background: Considering the importance of mental abilities in continuing education in students, the present study was conducted to determine the role of psychological toughness and resilience in predicting the psychological differentiation of female students of the second level of high school in Bandar Abbas city.
Methods: The current research method was a correlational description. The statistical population of the research was made up of all female students of second-secondary education in Bandar Abbas city in the academic year of 2024. Several 380 people were selected as a sample by cluster random sampling method. The research tools were Skorn and Friedlander's self-differentiation questionnaires, Kubasa's psychological toughness, and Connor and Davidson's resilience scale. Data were analyzed using Pearson's correlation test and multivariate regression.
Results: The results showed that psychological toughness (R = 0.23 & P < 0.01) and all its components and resilience (R = 0.26 & P < 0.01) and all its components have a positive and significant relationship with psychological differentiation in students. Also, the results of the regression analysis showed that psychological toughness (β = 0.26 & P < 0.01) and resilience (β = 0.30 & P < 0.01) can positively and meaningfully predict differentiation in students.
Conclusion: Using the results of this research and considering the identification of factors affecting differentiation, it is suggested to pay special attention to the field of increasing the characteristics of psychological toughness and resilience of students.