bluuebunny/crossref_metadata_2025 huggingface dataset:
The Density of Ramified Primes
Authors: Saha Jyoti Prakash
Published: January 2023

Let

F

be a number field,

\mathcal{O}

be a domain with fraction field

\mathcal{K}

of characteristic zero and

\rho:\text{Gal}(\overline F/F)\to\text{GL}_n(\mathcal{O})

be a representation such that

\rho\otimes\overline{\mathcal{K}}

is semisimple. If

\mathcal{O}

admits a finite monomorphism from a power series ring with coefficients in a

p

-adic integer ring (resp.

\mathcal{O}

is an affinoid algebra over a

p

-adic number field) and

\rho

is continuous with respect to the maximal ideal adic topology (resp. the Banach algebra topology), then we prove that the set of ramified primes of

\rho

is of density zero. If

\mathcal{O}

is a complete local Noetherian ring over

\mathbb{Z}_p

with finite residue field of characteristic

p,\rho

is continuous with respect to the maximal ideal adic topology and the kernels of pure specializations of

\rho

form a Zariski-dense subset of

\text{Spec}\mathcal{O}

, then we show that the set of ramified primes of

\rho

is of density zero. These results are analogues, in the context of big Galois representations, of a result of Khare and Rajan, and are proved relying on their result.
Localizations of the Category of $A_\infty$ Categories and Internal Homs
Authors: Canonaco Alberto , Ornaghi Mattia , Stellari Paolo
Published: January 2023

We prove that the localizations of the categories of dg categories, of cohomologically unital and strictly unital

A_\infty

categories with respect to the corresponding classes of quasi-equivalences are all equivalent. Moreover we show that the last two localizations are equivalent to the corresponding quotients by the relation of being isomorphic in the cohomology of the

A_\infty

category of

A_\infty

functors. As an application we give a complete proof of a claim by Kontsevich stating that the category of internal Homs for two dg categories can be described as the category of strictly unital

A_\infty

functors between them.
On the Analytic Properties of the Standard $L$-Function Attached to Siegel-Jacobi Modular Forms
Authors: Bouganis Thanasis , Marzec Jolanta
Published: January 2023

In this work we study the analytic properties of the standard

L

-function attached to Siegel-Jacobi modular forms of higher index, generalizing previous results of Arakawa and Murase. Moreover, we obtain results on the analytic properties of Klingen-type Eisenstein series attached to Jacobi groups.
Heat Kernel of Anisotropic Nonlocal Operators
Authors: Bogdan Krzysztof , Sztonyk Paweł , Knopova Victoria
Published: January 2023

We construct and estimate the fundamental solution of highly anisotropic space-inhomogeneous integro-differential operators. We use the Levy method. We give applications to the Cauchy problem for such operators.
On Numerical Nonvanishing for Generalized Log Canonical Pairs
Authors: Han Jingjun , Liu Wenfei
Published: January 2023

The nonvanishing conjecture for projective log canonical pairs plays a key role in the minimal model program of higher dimensional algebraic geometry. The numerical nonvanishing conjecture considered in this paper is a weaker version of the usual nonvanishing conjecture, but valid in the more general setting of generalized log canonical pairs. We confirm it in dimension two. Under some necessary conditions we obtain effective versions of numerical nonvanishing for surfaces. Several applications are also discussed.

In higher dimensions, we mainly consider the conjecture for generalized klt pairs

(X, B+\mathbf M)

, and reduce it to lower dimensions when

K_X+\mathbf M_X

is not pseudo-effective. Up to scaling the nef part, we prove the numerical nonvanishing for pseudo-effective generalized lc threefolds with rational singularities.
Essentially Finite Vector Bundles on Normal Pseudo-Proper Algebraic Stacks
Authors: Tonini Fabio , Zhang Lei
Published: January 2023

Let

X

be a normal, connected and projective variety over an algebraically closed field

k

. In [
I. Biswas
and
J. P. P. dos Santos
, J. Inst. Math. Jussieu 10, No. 2, 225–234 (2011; Zbl 1214.14037)] and [
M. Antei
and
V. B. Mehta
, Arch. Math. 97, No. 6, 523–527 (2011; Zbl 1236.14041)] it is proved that a vector bundle

V

on

X

is essentially finite if and only if it is trivialized by a proper surjective morphism

f:Y\longrightarrow X

. In this paper we introduce a different approach to this problem which allows to extend the results to normal, connected and strongly pseudo-proper algebraic stack of finite type over an arbitrary field

k

.
Some boundedness results for Fano-like Moishezon manifolds
Authors: Bonavero Laurent , Takayama Shigeharu
Published: January 2023

We prove finiteness of the number of smooth blow-downs on Fano manifolds and boundedness results for the geometry of non projective Fano-like manifolds. Our proofs use properness of Hilbert schemes and Mori theory.
On the Milnor $K$-groups of complete discrete valuation fields
Authors: Nakamura Jinya
Published: January 2023

For a discrete valuation field

K

, the unit group

K^{\times}

of

K

has a natural decreasing filtration with respect to the valuation, and the graded quotients of this filtration are given in terms of the residue field. The Milnor

K

-group

K^M_q(K)

is a generalization of the unit group, and it also has a natural decreasing filtration. However, if

K

is of mixed characteristics and has an absolute ramification index greater than one, the graded quotients of this filtration are not yet known except in some special cases.
The number of independent Vassiliev invariants in the Homfly and Kauffman polynomials
Authors: Lieberum Jens
Published: January 2023

We consider vector spaces

\mathcal H_{n,\ell}

and

\mathcal F_{n,\ell}

spanned by the degree-

n

coefficients in power series forms of the Homfly and Kauffman polynomials of links with

\ell

components. Generalizing previously known formulas, we determine the dimensions of the spaces

\mathcal H_{n,\ell}, \mathcal F_{n,\ell}

and

\mathcal H_{n,\ell}+\mathcal F_{n,\ell}

for all values of

n

and

\ell

. Furthermore, we show that for knots the algebra generated by

\bigoplus_n \mathcal H_{n,1}+\mathcal F_{n,1}

is a polynomial algebra with

\dim(\mathcal H_{n,1}+\mathcal F_{n,1})-1=n+[n/2]-4

generators in degree

n\geq 4

and one generator in degrees 2 and 3.
Cores of Ariki-Koike algebras
Authors: Jacon Nicolas , Lecouvey Cédric
Published: January 2023

We study a natural generalization of the notion of cores for

l

-partitions attached with a multicharge

\mathbf{s}\in \mathbb{Z}^l

: the

(e,\mathbf{s})

-cores. We rely them both to the combinatorics and the notion of weight defined by Fayers. Next we study applications in the context of the block theory for Ariki-Koike algebras.
Essential crossed products for inverse semigroup actions: simplicity and pure infiniteness
Authors: Kwaśniewski Bartosz Kosma , Meyer Ralf
Published: January 2023

We study simplicity and pure infiniteness criteria for

\mathrm{C}^*

-algebras associated to inverse semigroup actions by Hilbert bimodules and to Fell bundles over étale not necessarily Hausdorff groupoids. Inspired by recent work of
R. Exel
and
D. R. Pitts
["Characterizing groupoid

\mathrm{C}^*

-algebras of non-Hausdorff étale groupoids", Preprint (2019); [arXiv: 1901.09683](arXiv: 1901.09683)], we introduce essential crossed products for which there are such criteria. In our approach the major role is played by a generalised expectation with values in the local multiplier algebra. We give a long list of equivalent conditions characterising when the essential and reduced

\mathrm{C}^*

-algebras coincide. Our most general simplicity and pure infiniteness criteria apply to aperiodic

\mathrm{C}^*

-inclusions equipped with supportive generalised expectations. We thoroughly discuss the relationship between aperiodicity, detection of ideals, purely outer inverse semigroup actions, and non-triviality conditions for dual groupoids.
Hecke $L$-functions and Fourier coefficients of covering Eisenstein series
Authors: Gao Fan
Published: January 2023

We consider in this paper covering groups and Fourier coefficients of Eisenstein series for induced representations from certain distinguished theta representations. It is shown that one has global factorization of such Fourier coefficients, and the local unramified Whittaker function at the identity can be computed from the local scattering matrices. For a special family of covering groups of the general linear groups, we show that the Fourier coefficients of such Eisenstein series are reciprocals of Hecke

L

-functions, which recovers an earlier result by Suzuki for Kazhdan-Patterson covering groups. We also consider covers of the symplectic group and carry out a detailed analysis in the rank-two case.
On lower bounds of the dimensions of multizeta values in positive characteristic
Authors: Chen Yen-Tsung , Harada Ryotaro
Published: January 2023

In this paper, we study the linear independence of special values, including the positive characteristic analogue of multizeta values, alternating multizeta values and multiple polylogarithms, at algebraic points. Consequently, we establish linearly independent sets of these values with the same weight indices and a lower bound on the dimension of the space generated by depth

r>2

multizeta values of the same weight in positive characteristic.
Motivic Mahowald invariants over general base fields
Authors: Quigley J. D.
Published: January 2023

The motivic Mahowald invariant was introduced in [
J. D. Quigley
, Algebr. Geom. Topol. 19, No. 5, 2485–2534 (2019; Zbl 1436.55016)] and [
J. D. Quigley
, J. Topol. 14, No. 2, 369–418 (2021; Zbl 07381853)] to study periodicity in the

\mathbb{C}

- and

\mathbb{R}

-motivic stable stems. In this paper, we define the motivic Mahowald invariant over any field

F

of characteristic not two and use it to study periodicity in the

F

-motivic stable stems. In particular, we construct lifts of some of Adams' classical

v_1

-periodic families [
J. F. Adams
, Topology 5, 21–71 (1966; Zbl 0145.19902)] and identify them as the motivic Mahowald invariants of powers of

2+\rho \eta

.
On the class of canonical systems corresponding to matrix string equations: general-type and explicit fundamental solutions and Weyl-Titchmarsh theory
Authors: Sakhnovich Alexander
Published: January 2023

Using linear similarity of a certain class of Volterra operators to the squared integration, we derive an important representation of the general-type fundamental solutions of the canonical systems corresponding to matrix string equations. Explicit fundamental solutions of such canonical systems are constructed (via the GBDT version of Darboux transformation) as well. Examples and applications to dynamical canonical systems are given. Explicit solutions of the dynamical canonical systems are constructed. Three appendices are dedicated to the Weyl-Titchmarsh theory for canonical systems, to the transformation of a subclass of canonical systems into matrix string equations (and of a smaller subclass of canonical systems into matrix Schrödinger equations), and to a linear similarity problem for Volterra operators.
Recovering a variable exponent
Authors: Brander Tommi , Siltakoski Jarkko
Published: January 2023

We consider an inverse problem of recovering the non-linearity in the one dimensional variable exponent

p(x)

-Laplace equation from the Dirichlet-to-Neumann map. The variable exponent can be recovered up to the natural obstruction of rearrangements. The main technique is using the properties of a moment problem after reducing the inverse problem to determining a function from its

L^p

-norms.
Potentially diagonalisable lifts with controlled Hodge-Tate weights
Authors: Bartlett Robin
Published: January 2023

Motivated by the weight part of Serre's conjecture we consider the following question. Let

K/\mathbb{Q}_p

be a finite extension and suppose

\overline{\rho} : G_K \rightarrow \operatorname{GL}_n(\overline{\mathbb{F}}_p)

admits a crystalline lift with Hodge-Tate weights contained in the range

[0,p]

. Does

\overline{\rho}

admit a potentially diagonalisable crystalline lift of the same Hodge-Tate weights? We answer this question in the affirmative when

K = \mathbb{Q}_p

and

n \leq 5

, and

\overline{\rho}

satisfies a mild 'cyclotomic-free' condition. We also prove partial results when

K/\mathbb{Q}_p

is unramified and

n

is arbitrary.
Erratum to: "Stability of equivariant vector bundles over toric varieties"
Authors: Dasgupta Jyoti , Dey Arijit , Khan Bivas
Published: January 2023

We correct the proof of [the authors, ibid. 25, 1787–1833 (2020; Zbl 1445.14071), Proposition 3.1.1].
The pro-étale cohomology of Drinfeld's upper half space
Authors: Orlik Sascha
Published: January 2023

We determine the geometric pro-étale cohomology of Drinfeld's upper half space over a

p

-adic field

K

. The strategy is different from the one given by [
P. Colmez
et al., Invent. Math. 219, No. 3, 873–985 (2020; Zbl 1475.11110)] and is based on the approach developed in [
S. Orlik
, Invent. Math. 172, No. 3, 585–656 (2008; Zbl 1136.22009)] describing global sections of equivariant vector bundles.
Ratio limits and Martin boundary
Authors: Woess Wolfgang
Published: January 2023

Consider an irreducible Markov chain which satisfies a ratio limit theorem, and let

\rho

be the spectral radius of the chain. We investigate the relation of the the

\rho

-Martin boundary with the boundary induced by the

\rho

-harmonic kernel which appears in the ratio limit. Special emphasis is on random walks on non-amenable groups, specifically, free groups and hyperbolic groups.
Heegner points and $L$-series of automorphic cusp forms of Drinfeld type
Authors: Tipp Ulrich , Rück Hans-Georg
Published: January 2023

In their famous article [Gr-Za], Gross and Zagier proved a formula relating heights of Heegner points on modular curves and derivatives of

L

-series of cusp forms.
$k$-differentials on curves and rigid cycles in moduli space
Authors: Mullane Scott
Published: January 2023

For

g\geq 2, j=1,\dots,g

and

n\geq g+j

we exhibit infinitely many new rigid and extremal effective codimension

j

cycles in

\overline{\mathcal{M}}_{g,n}

, the Deligne-Mumford compactification of the moduli of

n

-pointed curves of genus

g

. The extremal cycles constructed correspond to the strata of quadratic differentials and projections of these strata under forgetful morphisms. We further show the same holds for

k

-differentials with

k\geq 3

if the strata are irreducible. We compute the class of the divisors in the case of quadratic differentials which contain the first known examples of effective divisors on

\overline{\mathcal{M}}_{g,n}

with negative

\psi_i

coefficients.
The maximal discrete extension of the Hermitian modular group
Authors: Krieg Aloys , Raum Martin , Wernz Annalena
Published: January 2023

Let

\Gamma_n(\mathcal{O}_{\mathbb{K}})

denote the Hermitian modular group of degree

n

over an imaginary-quadratic number field

\mathbb{K}

. In this paper we determine its maximal discrete extension in

\operatorname{SU}(n, n; \mathbb{C})

, which coincides with the normalizer of

\Gamma_n(\mathcal{O}_{\mathbb{K}})

. The description involves the

n

-torsion subgroup of the ideal class group of

\mathbb{K}

. This group is defined over a particular number field

\widehat{\mathbb{K}}_n

and we can describe the ramified primes in it. In the case

n=2

we give an explicit description, which involves generalized Atkin-Lehner involutions. Moreover we find a natural characterization of this group in

\operatorname{SO}(2,4)

.
Finite groups scheme actions and incompressibility of Galois covers: beyond the ordinary case
Authors: Fakhruddin Najmuddin , Saini Rijul
Published: January 2023

Inspired by recent work of
B. Farb
et al. [Compos. Math. 157, No. 11, 2407–2432 (2021; Zbl 1490.14042)], we develop a method for using actions of finite group schemes over a mixed characteristic

\mathrm{dvr}\,\,\mathbb{R}

to get lower bounds for the essential dimension of a cover of a variety over

K = \text{Frac}(\mathbb{R})

. We then apply this to prove

p

-incompressibility for congruence covers of a class of unitary Shimura varieties for primes

p

at which the reduction of the Shimura variety (at any prime of the reflex field over

p)

does not have any ordinary points. We also make some progress towards a conjecture of Brosnan on the

p

-incompressibility of the multiplication by

p

map of an abelian variety.
Families of coherent PEL automorphic forms
Authors: Hernandez Valentin
Published: January 2023

In this article we give a construction of eigenvarieties by geometrically interpolating coherent automorphic sheaves of (PEL) Shimura varieties and their global sections. The new feature is that we particularly study the case of an empty ordinary locus, and thus use a replacement of the canonical subgroup in this situation. We specifically take into account the case of small primes and use this particular construction at a specific endoscopic point to prove new cases of the Bloch-Kato conjecture for characters of an imaginary quadratic field.
Compact moduli spaces of stable sheaves over non-algebraic surfaces
Authors: Toma Matei
Published: January 2023

We show that under certain conditions on the topological invariants, the moduli spaces of stable bundles over polarized non-algebraic surfaces may be compactified by allowing at the border isomorphy classes of stable non-necessarily locally-free sheaves. As a consequence, when the base surface is a primary Kodaira surface, we obtain examples of moduli spaces of stable sheaves which are compact holomorphically symplectic manifolds.
On Neeman's well generated triangulated categories
Authors: Krause Henning
Published: January 2023

We characterize Neeman's well generated triangulated categories and discuss some of its basic properties.
Prevalence of Ocular Chlamydia trachomatis Infection in Amhara Region, Ethiopia, after 8 Years of Trachoma Control Interventions
Authors: D. Nash Scott , Chernet Ambahun , Weiss Paul , W. Nute Andrew , Zerihun Mulat , Sata Eshetu , Gessese Demelash , A. Jensen Kimberly , Ayele Zebene , Melak Berhanu , Zeru Taye , Mengistu Abdulkerim , Abebe Adisu , Seife Fikre , Tadesse Zerihun , Callahan E. Kelly
Published: January 2023

Although trachoma mass drug administration (MDA) programs target ocular Chlamydia trachomatis, the global trachoma control program does not monitor infection as a measure of impact but instead relies on monitoring clinical indicators. This study aimed to monitor the prevalence of ocular C. trachomatis among a population-based sample of children ages 1–5 years throughout Amhara, Ethiopia, a region that has received approximately 8 years of annual MDA as part of trachoma control. Between 2014 and 2021, trachoma impact surveys and surveillance surveys were conducted in all 156 districts of Amhara using a multistage cluster randomized methodology. Certified graders assessed individuals ages ≥ 1 year for trachomatous inflammation-follicular (TF), and a random subset of children ages 1–5 years also provided a conjunctival swab. Polymerase chain reaction was used to test for C. trachomatis. A total of 28,410 conjunctival swabs were collected from children ages 1–5 years across Amhara. The regional C. trachomatis infection prevalence was 4.7% (95% uncertainty interval: 4.3–5.1%). Infection was detected in all 10 zones of the region and ranged from 0.2% in Awi Zone to 11.9% in Waghemra Zone. Infection was detected in 17 (26%) districts with a TF prevalence < 10% and in 7 (21%) districts with a TF prevalence < 5%. Through programmatic monitoring of C. trachomatis infection, this study demonstrated that considerable infection remained throughout Amhara despite approximately 8 years of trachoma interventions and that enhanced interventions such as more frequent than annual MDA will be needed if elimination thresholds are to be reached.
Democracia em crise no Brasil: valores constitucionais, antagonismo político e dinâmica institucional.
Authors: Sagrillo Figueiredo César Alessandro
Published: January 2023

SOUZA NETO, Cláudio Pereira.  Democracia em crise no Brasil: valores constitucionais, antagonismo político e dinâmica institucional. Editora Contracorrente: São Paulo; EdUERJ: Rio de Janeiro, 2020.
Racism and Resilience: Counter-Narratives of Asian International College Students in the Age of COVID-19
Authors: Liu Katrina , Miller Richard , Pollard-Durodola Sharolyn D. , Ping Lei
Published: January 2023

Using Asian Critical Race Theory and Resilience Theory, this qualitative study explores how Asian international college students experienced racism before and after the eruption of the COVID-19 pandemic and how they developed and used resilience to counteract that racism. Eleven Asian participants shared their counter-narratives through semi-structured interviews. Results reveal that, before the pandemic, participants were regularly subjected to racist acts and attitudes grounded in a deficit view of Asians that treated them as inscrutable foreigners, blamed them as individuals for perceived shortcomings in their home countries, dismissed their expertise outside of technical STEM fields, and failed to recognize their abilities in creative and leadership roles. During the pandemic, the racist acts and attitudes experienced by Asian international college students greatly exacerbated the unprecedented challenges of isolation, limited access to university space and resources, and financial and physical insecurity caused by the pandemic. Results also indicate that Asian international students developed resilience grounded on their life experiences and community assets to counteract racism.
Flexible Facilitation: Coaching and Modelling to Support Inclusive Education
Authors: Lane Danielle , Semon Sarah , Catania Nicholas , Abu-Alghayth Khalid
Published: January 2023

The practices of education, such as separate and resource placements, pull-out services, scripted intervention programmes, an emphasis on diagnoses, and behaviorist discipline practices, are not conducive to the goals of inclusive education. This study demonstrates how one instructional coach worked to disrupt traditional special education practices and guide special educators towards the use of more effective research-based instructional strategies and collaborative practices to promote inclusion. Using Robert Stake’s intrinsic case study methodology, we explored the perceived roles of coaching and modelling to promote inclusion through the lens of one coach who modelled methods for the special education teachers in multiple general education classrooms. The following themes emerged from the multiphase analysis of data collected throughout the coaching project: coaching as flexible facilitation, coaching as recognition of existing good practice, coaching pedagogical decision-making, coaching instructional reflectivity, and coaching collaborative partnerships. Coaching and modelling for special educators are recommended for promoting inclusive education as they embrace the complexity of changing classroom practice and can enhance collaborative instructional practice.
Conflict and Violence
Authors: Wieviorka Michel
Published: January 2023

According to vocabulary, conflict and violence go hand in hand. On the contrary, sociology might gain much if analytically distinguishing the two notions and giving each of them a precise meaning, which may deviate from common sense. Violence then appears more as opposed to the conflict, when it comes to instrumental violence, which can certainly be associated with conflict, but the opposite relationship is not always present.
Deinstitutionalization in the Field of Mental Health in Armenia: Contemporary Issues
Authors: Khachatryan Gohar
Published: January 2023

This article presents the problems of deinstitutionalization in the field of mental health in the Republic of Armenia based on the analysis of international documents defining the rights of persons with mental health problems. This article comprehensively discusses the way of deinstitutionalization in the field of mental health in the Republic of Armenia, the transformations that have taken place in the process, the current situation, the problems, the ways of overcoming them, filling the existing gap in this respect. The article substantiates the need for deinstitutionalization as a guarantee for the realization of the right to independent living and inclusion of people with mental health problems in the community in the Republic of Armenia. At the same time, the existing problems in Armenia in this regard are presented, both at the policy and practical levels. The author emphasizes the development of a comprehensive research-based document and a roadmap for the process as a way of overcoming identified issues.
Implementation Naïve Bayes Classification for Sentiment Analysis on Internet Movie Database
Authors: Samsir Samsir , Kusmanto Kusmanto , Dalimunthe Abdul Hakim , Aditiya Rahmad , Watrianthos Ronal
Published: January 2023

A film review is a subjective opinion of someone who has different feelings about each film. As a result, film enthusiasts will struggle to assess whether the film meets their requirements. Based on these issues, sentiment analysis is the best way to fix them. Sentiment analysis, also known as opinion mining, is the study of assigning views or emotional labels to texts in order to determine if the text contains positive or negative thoughts. The Nave Bayes method was chosen because it can classify data based on the computation of each class's probability against objects in a given data sample. The best model was created utilizing data without lemmatization, 500 vector sizes, and Nave Bayes classification, with an accuracy of 78.96 percent and a f1-score of 78.81 percent. Changes in vector size affect the system's capacity to foresee positive and negative sentiments. The difference in accuracy and recall values shows that when vector size 300 is utilized, the precision and recall outcomes are lower than when vector size 500 is used.
Implementasi Metode Multi Factor Evaluation Process (MFEP) Pada Sistem Penilaian Kinerja Kelurahan di Kecamatan
Authors: Siregar Beni Harianto , Helmiah Fauriatun , Kifti Wan Mariatul
Published: January 2023

The Datuk Bandar District Office of Tanjungbalai City annually holds a performance competition between villages to determine the best village by the criteria that have been determined. Selection is carried out through administrative selection, presentation selection, and visit selection, concerning Permendagri number 13 of 2007 concerning guidelines for organizing village and village competitions. For administrative selection, there are already separate rules and systems used to calculate the score of the assessment results. Presentation selection is judged by the mastery of the material, the appearance of giving the material, and the timeliness of the presentation. As for the selection of airy visits, it is assessed from superior products and innovations. So far in the process of assessing the presentation selection and field visit selection at the village competition at the level of the Datuk Bandar District Office of Tanjungbalai City, the assessment team formed by the Tanjungbalai City Datuk Camat still has difficulty in determining the best village performance due to differences of opinion between the assessment team and each other in determining the winner. In addition, the calculation process is still done manually so the calculation results take a long time and the possibility of miscalculation occurs. The results of the village performance competition are considered not objective, it should be worthy of being the best village but not getting it. For this reason, the application of decision support systems is needed to help provide recommendations with more accurate, effective, and efficient results.The method used in this decision support system is MFEP, as an alternative solution for decision-makers to easily determine the village performance competition that deserves the title of the best village based on the weight value obtained in the assessment process. The results of this study, can help in the assessment system of the Village Performance Competition at the Datuk District Office of Tanjungbalai City Where the results of sirantau village as the village with the best performance with a value of 3,765, then sijambi village with a value of 3,471 and johor panti village with a value of 3,412.
Implementasi E-Learning Pada Mata Pelajaran Jurusan IPA Menerapkan Pengembangan Waterfall
Authors: Azhari Irvan , Yusda Riki Andri , Rohminatin Rohminatin
Published: January 2023

Student activity can be carried out by utilizing interactive technology and easy to use by students. E-Learning is learning that utilizes electronic media such as the internet, interactive TV and audio to deliver learning materials anywhere and anytime. In research conducted at MAS Alamanaar PTPN IV Pulu Raja, several things became obstacles in the learning process, including the limitations of learning resources based on computer and telecommunications technology. Materials that are applicable or applied should train students more but lack facilities and infrastructure, learning is still normative. Students need broad access to learning, active, creative, and a challenging learning environment. The use of the internet has not been optimal in finding learning resources. The lack of interest and interest of students in participating in learning the subjects of the IA (Natural Science) Department using conventional methods so far, which is indicated to be in line with the low student learning outcomes. Especially during a pandemic like today, schools need learning media that can be done online. Based on these problems, to support the learning process in schools, an E-Learning platform was built that can help schools in learning the IA (Natural Sciences) Department, because the features in E-Learning really help teachers and students in doing online learning, such as features materials, assignments, discussions between students and subject teachers and final grades that can be seen directly by students. The application is built using the SDLC Waterfall Model. The research method used is a qualitative method, with interview data collection techniques, observation and literature study. The results of this study, E-Learning can facilitate teachers and students for teaching and learning activities, practice questions and can overcome obstacles to teaching and learning activities, so that the E-Learning system is feasible to be implemented as a means of supporting learning in schools.
Rancang Bangun Customer Relationship Management(CRM) Dalam Penjualan Berbasis E-Commerce
Authors: Syahnita Syahnita , Nofriadi Nofriadi , Sudarmin Sudarmin
Published: January 2023

The development of the business world has entered a new era, where there are more and more new companies and competing companies in the service, trade, and manufacturing sectors. The higher the level of customer education, the customer will indirectly become critical and careful in making their choices. In a situation like this, the company must not only rely on the products it produces, but the company must also establish good relationships with each of its loyal customers so that customers will be loyal to the company. Umi Nala Shop Aneka Serbu is engaged in sales such as selling children's toys, household appliances and various types of gifts. The problems that occur at Umi Nala Shop Aneka Serbu are, the sales process at Umi Nala Shop Aneka Serbu is still doing conventional sales, there are no facilities that help customers to get information, submit an assessment of the product and also experience difficulties in processing and storing customer data. who have made buying and selling transactions, there is no facility for customers to submit complaints or product evaluations. This study utilizes CRM features that aim to help the service system at Umi Nala Shop Aneka Serbu to attract new customers and retain old customers and expand the sales system. This application is made using the PHP programming language and MySQL as the database server. With this system, it is hoped that the system of marketing, sales, service and utilization of Customer Relationship Management will have a positive influence on customer loyalty so that customers remain loyal to Umi Nala Shop Aneka Serbu
Penerapan Metode Double Moving Average Dalam Peramalan Permintaan Produk Beras
Authors: Ikhwani Riska , Siagian Yessica , Marpaung Nasrun
Published: January 2023

UD. Putra Tunggal is a trading business that sells people's basic needs such as rice, cooking oil, sugar and other basic needs of the community. This trading business requires forecasting in an effort to process data and produce accurate reports. This is done because UD. Putra Tunggal to determine the demand for rice is unpredictable, so he often experiences a lack of supply of rice to be purchased in serving the demand for rice needed by customers. In designing this system, the author uses the Double Moving Average (DMA) forecasting method for the decision support process in determining the amount of rice stock to be sold for the next month, using the calculation method. Forecasting application is made using visual basic net 2010 programming language with Microsoft Access for data base. From making the system an application can be produced that can control demand optimally and economically and with a high level of accuracy and can predict the amount of rice demand at UD. Putra Tunggal so that the forecast results can help trading businesses to avoid running out of rice demand stocks at UD. Putra Tunggal. The results of the forecasting of sales of CABE rice products 1 year ago, namely in January in 2021, it has been predicted that sales in January 2022 will decrease to 195 sacks of rice to be sold
Penerapan Fitur Firebase Cloud Messaging Pada Sistem Kontrol Pembayaran Iuran BPJS Ketenagakerjaan Berbasis Mobile
Authors: Meidina Mita , Junadhi Junadhi , Rio Unang , Efendi Yoyon
Published: January 2023

BPJS of  Employment is the organizer of a social security program that functions to protect workers through four employment social security programs, namely Work Accident Insurance, Old Age Security, Death Security, and Pension Security. Information regarding the payment of BPJS Employment Contributions is an important factor in supporting social security programs for workers and employees. This is because there are still many participants who are in arrears in payment of the BPJS Employment Contribution and there is no immediate information regarding the payment of the BPJS Employment Contribution. In this study, an application was made so that an administrator could send notification messages regarding the payment of the BPJS Employment Monthly Contribution to participants and could receive reports on the payment of contributions that have been made by participants. The system design this time was assisted by Firebase Cloud Messaging (FCM) technology which functions as a web service. Messages that have been sent can be stored in a database that can be viewed on the admin web page. The results of this study are successful in building a BPJS employment payment control application by implementing the mobile-based Firebase Cloud Messaging (FCM) feature. This application can send notifications to participants regarding due information on dues payments in real time. Makes it easier for participants to get the latest information quickly. For the tests carried out using the functionality testing of the system by performing simulations on each function of the system made and concluded that the system functions can run well
Implementasi VPN Menggunakan Metode Point to Point Tunneling Protocol
Authors: Andriani Ria , Sa’di Ahmad , Putra Andriyan Dwi
Published: January 2023

The XYZ office is a government agency covering various fields, ranging from government, economy, development, people's welfare, community life development and public service affairs. However, work activities in agencies were disrupted due to the COVID-19 pandemic which caused the government to impose a Large-Scale Social Restriction (PSBB) policy to suppress the spread of this virus, resulting in agency workers having to work from home. Therefore we need an appropriate means to be able to support these activities. One of them is making a technology design by implementing a VPN on a proxy router with the PPTP (Point to Point Tunnelling Protocol) method so that it can make it easier for employees to communicate without thinking about location. In addition, users can still remotely access the local network even though they are outside the office network. more secure. Based on the results of testing the network security at the XYZ Office before using the VPN Server, it proved that the wiretapping attackers could still obtain data in the form of website login information, proxy logins, or view data contents when exchanging data. Meanwhile, when the user connects to the VPN Server, the eavesdropper cannot see the contents of the data in it, then with the implementation of a VPN with the PPTP method, employees who are working from home can connect and communicate well with each other, with that work and information exchange will become more flexible and faster
Prediksi Pengajuan Kredit Usaha Pada Koperasi Menggunakan Algoritma K-Nearest Neighbor
Authors: Harpad Bartolomius , Bustomi Tommy
Published: January 2023

Cooperative activities have become the activities most needed by many people because they are related to money, cooperatives are places that provide loans to housewives and also workers in a certain area or environment, the lack of interest offered by this cooperative is considered very easy. and very helpful for many parties in facilitating financial affairs, especially in financial matters, because the convenience offered by the cooperative makes many interested people ask for the same thing resulting in vulnerability to fraud, the importance of making predictions on prospective new business loan applications can help reduce the worst risks from various risks that occur in the future, in this study the k-nearest neighbor algorithm will be used as a prediction algorithm for prospective business credit applications at cooperatives, the value obtained is the value of training data or data records of several previous customers so as to easier to know new data as test data in a study. The results found in this study for prospective business credit applications are "Not Eligible" seen to the closest value based on the smallest value with (closest distance) between one another as many as 3 distances, namely numbers 1, 2 and 3 where number 1 states "Not feasible ”, at the second closest distance stating “Eligible” and number 3 stating “Not Eligible”, the most results stated Not Eligible so that the decision value on new customers had to be rejected “Not eligible” to be accepted
Sistem Pendukung Keputusan Menentukan Kualitas Ayam Petelur Menggunakan Metode Simple Additive Weighting
Authors: Supiyandi Supiyandi , Hariyanto Eko , Rizal Chairul , Zen Muhammad , Pasaribu Saddam Husen Romadon
Published: January 2023

Determining the selection of quality laying hens is a decision that must be carried out so that production results will increase and the quality of the eggs produced, there are lots of criteria that must be owned for the complexity and importance of the problem requiring analytical methods rather than intuitive decisions. as a condition for obtaining the scholarship. Each laying hens must have criteria to determine the quality of laying hens. Decision Support System Determining the Quality of Laying Hens with the Simple Additive Weighting (SAW) Method is an element that greatly influences the smooth running of the task. The division in this study will be appointed a case, namely looking for the best alternative based on predetermined criteria using the SAW (Simple Additive) method. Weighting) The research was conducted by finding the weight value for each attribute, then a ranking process was carried out which would determine the optimal alternative, namely the best quality laying hens.
Penerapan Metode TOPSIS Dalam Pemilihan Media Pembelajaran Berbasis Komputer
Authors: Rizka Ade
Published: January 2023

Information technology is one of the needs and has an important role in the field of education. One form of utilizing technological developments in the field of education is through computer-based learning media. Computer-based learning media is a tool that helps the learning process between teachers and students in the digital era. Various types of computer-based learning media are available, but the similarities in the types of variations become obstacles in the selection process. The selection of learning media has several important elements that will determine the suitability of the science and material to be studied. The selection process with a decision support system using several criteria will help in making decisions. The TOPSIS method can identify solutions from available alternatives based on criteria. Elements of learning media which are the criteria for each alternative, namely, sound, images, video, text, animation, graphics, graphics, tutorials, interactive, visual and practical. The media element is an indicator in this research. Based on the application of the method, the results of implementation and testing in the selection process have a more spesific value between each alternative, namely the PPT alternative has a preference value of 0, the CD alternative gas a preference value of 0.4299, the video alternative has a preference value of 1 and the internet alternative has a result preference value 0.6205. Then the TOPSIS methid in selecting computer-based learning media can assist teachers in directing students to choose the type of learning media that is suitable for learning interests. The overall appearance of the system has been adapted to the needs of students to make it easier to understand and use.
Implementasi Algoritma Data Mining J48 Untuk Klasifikasi Mahasiswa Yang Layak Mendapat Beasiswa PPA
Authors: Buulolo Ananoma , Bu’ulolo Efori
Published: January 2023

The PPA Scholarship is a support for educational costs that is given to students who have taken at least semester 2 in Higher Education with consideration of limited economic capacity and have academic and non-academic achievements. In classifying students who are eligible for PPA scholarships, the management has difficulties because the limited PPA scholarships are not proportional to the number of students. One solution in classifying students who are eligible for PPA scholarships is to utilize the data of students who have received PPA scholarships in the previous year. However, in the classification process, data research is needed, one of the data research techniques is data mining. Where data mining is an interesting pattern extraction of large amounts of data [1]. One of the algorithms in data mining used in classification is the J48 algorithm. The J48 algorithm is the implementation of the C4.5 algorithm in the WEKA tools, besides the J48 algorithm is the decision tree implementation in the rapidminer tools. This algorithm is expected to help the management of the PPA scholarship at STMIK Budi Darma in classifying students who really deserve to receive the PPA scholarship. As a result, one of the criteria for a student to be classified as receiving a PPA scholarship is to have achievement
Sistem Klasifikasi Pengaduan Masyarakat Pada BPJS Ketenagakerjaan Menggunakan Algoritma Naïve Bayes Berbasis Mobile
Authors: Lestari Fika Ayu , Efrizoni Lusiana , Ali Edwar , Rahmiati Rahmiati
Published: January 2023

Public complaints are needed so that the performance of an agency can be known whether it is running well or vice versa. Improving the quality of public services can be done through the quick resolution of complaints from service providers. Naive Bayes Classifier is an approach that refers to Bayes theorem by combining previous knowledge with new knowledge. So it is called a classification algorithm that is simple but has high accuracy. For this reason, this study will prove the ability of Naive Bayes to classify public complaints against BPJS Employment which contain information on services or social conditions in Pekanbaru City. There are 3 types of complaint classification that can be submitted, namely disbursement problems, BPJS Employment service problems and problems with social security administration. The mobile-based system is implemented with the programming language used, namely Java, while PHP is for administrators. Administrators in this system are employees who work in the BPJS Employment office. This system is tested using whitebox testing for unit testing and integration testing, blackbox testing for validation testing and usability testing. The results of this study are the classification system for public complaints at BPJS Employment using the mobile-based Naive Bayes algorithm. The classification accuracy using the Naïve Bayes algorithm is 0.9, the average precision is 0.93, the recall is 0.91, and the F1-score is 0.9.
Analisis User Experience Pada Website Universitas Teknologi Sumbawa Menggunakan Metode Webqual
Authors: W Yunanri , Susanto Eri Sasmita , Yuliadi Yuliadi , Zaen Muhammad Taufan Asri , Oper Nabila
Published: January 2023

Sumbawa University of Technology (UTS) is one of the educational institutions that utilize website technology in educational institutions. The Sumbawa University of Technology website, it can make it easier for the public to get information. User experience analysis on the Sumbawa University of Technology website to be able to find out the usefulness of the product or UX display that is applied in serving users. The purpose of this research is that the Sumbawa University of Technology website can make it easier for the UTS campus community and the public to get the important and latest information from the Sumbawa Technological University, and the campus can also know how users respond to the content or appearance of the UTS website. From the results of the questionnaire that has been conducted by researchers, more respondents chose "Neutral" and "Agree", because the response was good, there was no change in the UX appearance
Analysis of The Impact of Software Detailed Design on Mobile Application Performance Metrics
Authors: Khairin Amal , Kusumo Dana Sulistyo , Priyadi Yudi
Published: January 2023

The rapid development of mobile applications in recent years has forced developers to develop their applications quickly. Application quality must be one of the top concerns of developers since poor application design will affect the quality of the application. Performance is one of the important quality attributes that determine the quality of an application. One approach that can be used to overcome performance problems is the design pattern. However, as the research progressed, other approaches were discovered such as refactoring code smells and design principles. In this study, a detailed design analysis was carried out on the source code of the mobile application by applying design patterns, refactoring the code smells, and implementing design principles to determine their impact on the application's performance. To measure the application performance, Central Processing Unit (CPU) usage, memory usage, and frame rate metrics are used. Based on the implementation design patterns, refactoring the code smells, and applying design principles, the result found that design patterns can affect application performance depending on the design pattern used. The Strategy pattern and Visitor pattern optimize memory usage by 1%, while the Bridge pattern increases memory usage by 2%. Meanwhile, the result of refactoring the code smells can optimize CPU usage by 35% and memory usage by 2%, and design principles can optimize CPU usage by 25% and application frame rates by 5 frame per second (fps).