bluuebunny/crossref_metadata_2025 huggingface dataset:
MAGNETIC, CONDUCTING, AND MAGNETIC CONDUCTING PROPERTIES OF COMPOSITE FILMS (CoFeB+SiO2+N2) IN THE TEMPERATURE RANGE 2–400 K AND MAGNETIC FIELDS OF 0, 1, AND 5 T
Authors:   Syktyvkar State University, Syktyvkar, Russia, Kotov L.N. , Utkin A.A. , Kalinin Yu.E. , Sitnikov A.V. ,   Voronezh State Technical University, Voronezh, Russia
Published: November 2023

Composite films with compositions [(CoFeB)x+(SiO2)(1–x)+N2), x = 0,33–0,52] were obtained by ion-beam sputtering using metal alloy and dielectric targets in a nitrogen atmosphere. The thickness and content of atomic elements, and the concentration of metal alloy x composite films were found using a TESCAN MIRA3 electron microscope. Images of the magnetic phase contrast of the surface of composite films were obtained using magnetic force microscopy (Integra Prima atomic force microscope NT-MDT, Russia) with an MFM10 cantilever. Magnetic phase contrast images of x = 0,48–0,52 films were studied. All the composite films have granular and percolation structures, the volume ratio of these structures varies depending on x. The percolation structure of films with high concentrations x > 0,48 manifested in the presence of extended isolated areas (more than 1 μm) of the accumulation of metal granules. The temperature dependences of magnetic susceptibility, specific conductivity, and specific magnetic conductivity of the composite films with metal alloy concentrations x = 0,33–0,52 were studied in a temperature range of 2–400 K and in magnetic fields of 0 T, 1 T, and 5 T. All measurements of magnetic susceptibility and electrical resistance of the composite films in this temperature and magnetic field range were carried out at the center for diagnostics of functional materials for medicine, pharmacology, and nanoelectronics at St. Petersburg State University. In composite film No.1(x = 0,46) in the temperature range 100–300 K, the highest positive magnetic conductivity had a value of 1,2 at 200 K. The highest positive magnetic conductivity (about 1,2) was observed in composite granular films with small granule sizes. The results of temperature studies of the magnetic conductivity of the composites show that the ratio of positive and negative magnetic conductivity depends on the temperature of the film and on the concentration of the metal alloy x, which sets the ratio of the granular and percolation structures. Large negative magnetic conductivity (about –0,2) occurs in composite films No.3 and 5, the structure of which, along with the granular structure, includes extended (more than several micrometers) metallic areas of metal granules.
Inventarisasi Kejadian Banjir Rob Kota Semarang Periode 2012 - 2020
Authors: Egaputra Afif Arwin , Ismunarti Dwi Haryo , Pranowo Widodo Setiyo
Published: November 2023

Kota Semarang merupakan salah satu wilayah pesisir yang rentan terhadap fenomena banjir rob. Banjir rob merupakan fenomena di mana air laut masuk dan menggenangi daratan. Banyak faktor yang mampu mempengaruhi terbentuknya banjir rob seperti pasang surut, kenaikan muka air laut, dan dorongan angin kencang yang menghasilkan gelombang tinggi. Tujuan dari inventarisasi kejadian banjir rob ini adalah untuk menentukan faktor dominan banjir rob yang terjadi pada kawasan Kota Semarang. Pada penelitian ini, data tanggal kejadian banjir rob yang terjadi bersumber dari media massa serta data bencana alam BPBD Kota Semarang. Data Angin dari European Center for Medium Range Weather Forecast (ECMWF), data curah hujan dari Badan Meteorologi, Klimatologi, dan Geofisika (BMKG), dan data prediksi pasang surut oleh Badan Informasi Geospasial (BIG) juga turut digunakan untuk analisis dalam mengidentifikasi faktor dominan banjir rob. Berdasarkan hasil penelitian, kejadian banjir rob pada Kota Semarang umumnya terjadi pada bulan Desember hingga Februari dan Mei hingga Juli dengan pasang purnama menjadi faktor dominan di musim peralihan 1 dan musim timur dan angin kencang yang diikuti curah hujan tinggi menjadi faktor dominan di musim barat. Kata kunci: Inventarisasi Banjir rob, Semarang, Pasang Surut, Curah Hujan, Angin Abstract Inventory of Tidal Flood Events in Semarang City for the Periode 2012-2020 Semarang is one of many coastal areas that are vulnerable to coastal flooding. Coastal flooding is a phenomenon where sea water enters and inundates the land.  Many factors influence the formation of coastal flood including tides, rising sea levels, and strong wind that produce high waves. The purpose of this coastal flood inventory is to determine the dominant factor of coastal flood that occurred in Semarang. In this study, the date of the coastal flood that occurred is sourced from the mass media and natural disaster data by BPBD Semarang. Wind data from European Center for Medium Range Weather Forecast (ECMWF), rainfall data from Meteorology, Climatology, and Geophysical Agency (BMKG), and tidal prediction from Geospatial Information Agency (BIG) are also used for analysis in identifying the dominant factor for coastal flooding. Based on the result of the study, coastal flooding in Semarang City generally occurs in December to February and May to July with spring tide become the dominant factor during the first transitional monsoon and the east monsoon and strong winds followed by high rainfall become the dominant factors during the west monsoon. Keywords: Coastal flood Inventory, Semarang, Tides, Rainfall, Wind
Studi Sebaran Sedimen Feromagnetik Di Perairan Muara Sungai Sambong, Batang
Authors: Aliandu Richardus Ade Satria , Wulandari Rr. Sri Yulina , Rochaddi Baskoro
Published: November 2023

Abstrak Sungai Sambong berada di wilayah kabupaten Batang, provinsi Jawa Tengah, dan muaranya dijadikan sebagai pelabuhan kota Batang. Sungai Sambong memiliki hulu yang terletak di kawasan pegunungan Dieng yang memiliki kawah aktif. Karena hal itu umumnya terdapat kandungan mineral feromagnetik. Penelitian ini bertujuan mencari tahu kandungan mineral feromagnetik pada sedimen yang terdapat di kawasan muara sungai Sambong. Sedimen diambil di sekitar wilayah perairan muara sungai Sambong, dan dicari tahu persentase kandungan feromagnetiknya dan dicari juga kandungan butir yang terdapat pada sedimen tersebut. Sebaran mineral sedimen pada perairan dicari faktor penyebabnya dan diolah dengan menggunakan analisa pemodelan komputer.Hasil analisa kandungan sedimen feromagnetik didapatkan kandungan terbesar pada daerah muara sungai dengan kadar 12,528% dan kandungan terkecil pada perairan di sebalah Utara muara dengan kadar 1,023%. Kandungan butir sedimen yaitu pasir, lanau dan lanau pasiran. Kecepatan arus pada bulan April 2022 berkisar antara 0.065581 m/s sampai 0.215389 m/s dengan arah dominan yaitu Selatan dan Tenggara. Penelitian ini dapat dijadikan sebagai sumber data untuk mendukung penelitian dan pengembangan mengenai studi kandungan feromagnetik pada sedimen serta persebarannya di periran Muara Sungai Sambong, Batang.Kata kunci : Sedimen Feromagnetik, Butir Sedimen, Pola Arus, Model Sedimen, Muara Sungai Sambong Batang.Abstract The Sambong River is located in the Batang district, Central Java province, and its estuary is used as the port of the city of Batang. The Sambong River has an upstream which is located in the Dieng mountain area which has an active crater. Because it generally contains ferromagnetic minerals. This study aims to find out the ferromagnetic mineral content in sediments in the Sambong river estuary area. Sediment was taken around the waters of the Sambong river estuary, and sought to know the percentage of ferromagnetic content and also looked for grain content contained in the sediment. The distribution of sedimentary minerals in the waters was searched for the causative factors and processed using computer modeling analysis. 528% and the smallest content in the waters north of the estuary with a level of 1.023%. The content of sediment grains is sand, silt and sandy silt. Current velocity in April 2022 ranges from 0.065581 m/s to 0.215389 m/s with the dominant directions being South and Southeast. This research can be used as a source of data to support research and development regarding the study of ferromagnetic content in sediments and their distribution in the waters of the Sambong River Estuary, Batang.Keywords : Ferromagnetic Sediment, Sediment Grain, Flow Pattern, Sediment Model, Sambong Batang River Estuary.
Studi Kandungan dan Sebaran Klorofil-a Untuk Menentukan Fishing Ground Potensial Berdasarkan Kesuburan di Perairan Pekalongan, Jawa Tengah
Authors: Prasasti Namira Yunita , Zainuri Muhammad , Ismunarti Dwi Haryo
Published: November 2023

Wilayah perairan Kota Pekalongan mempunyai potensi perikanan yang cukup tinggi dengan hasil tangkapan yang ditampung pada Tempat Pelelangan Ikan (TPI). Namun demikian, kegiatan perikanan tangkap tersebut masih disumbang oleh perikanan tradisional yang membutuhkan data-data serta teknologi untuk pendugaan daerah fishing ground potensial.Penelitian ini bertujuan untuk mengetahui kandungan klorofil-a (sebagai indikator kesuburan) serta persebarannya untuk penentuan zona fishing ground potensial di perairan Pekalongan, Jawa Tengah. Penelitian ini dilaksanakan dengan pendekatan kuantitatif, dimana data primer berupa kandungan klorofil-a yang diambil secara in-situ pada tanggal 11 Agustus 2021. Pada saat bersamaan juga dilakukan pengumpulan data hasil tangkapan ikan di TPI Wonokerto, Pekalongan. Data klorofil-a in-situ selanjutnya akan ditumpang susun dengan data klorofil-a dari citra MODIS. Kedua data tersebut selanjutnya ditumpang susunkan dengan data hasil tangkapan ikan di perairan Pekalongan. Data-data tersebut selanjutnya dilakukan interpolasi, dan digunakan untuk mengetahui zona fishing ground di perairan Pekalongan, Jawa Tengah. Hasil penelitian menunjukkan bahwa kandungan klorofil-a di perairan Pekalongan, Jawa Tengah menunjukkan kisaran diantara 0,68632 mg/m3 - 7,11238 mg/m3 dengan pola sebaran dari arah tenggara menuju ke barat laut. Hasil tangkapan ikan rata-rata menunjukkan kisaran diantara 9 - 48 kg dengan pola sebaran yang sejalan dengan kandungan klorofil-a. Hasil analisis peta sebaran klorofil-a in-situ di wilayah perairan Pekalongan menunjukkan pola yang sama dengan pola sebaran klorofil-a dari satelit MODIS dimana arahnya dari arah garis pantai menuju laut, dari tenggara menuju ke arah barat laut, yang terkait dengan arah angin, dan kondisi lingkungan maupun musim.
Pengaruh Suhu Permukaan Laut (SPL) dan Klorofil-A Terhadap Hasil Tangkapan Ikan Layang (Decapterus macrosoma) di Perairan Kabupaten Rembang, Jawa Tengah
Authors: Dwiyanti Atika , Maslukah Lilik , Rifai Aziz
Published: November 2023

Ikan layang (Decapterus macrosoma) merupakan salah satu jenis ikan pelagis yang banyak di tangkap di perairan Kabupaten Rembang, Jawa Tengah. Hasil tangkapan tersebut menurun sejak tahun 2018 hingga 2020. Penurunan ini dapat disebabkan oleh perubahan kondisi lingkungan yang mempengaruhi kelimpahan sumber makanan ikan layang tersebut. Sebaran suhu permukaan laut (SPL) dan konsentrasi klorofil-a dapat dijadikan sebagai indikator untuk kesuburan suatu perairan. Tujuan dari penelitian ini adalah untuk mengetahui sebaran SPL dan klorofil-a serta mengetahui pengaruh SPL dan klorofil-a terhadap hasil tangkapan ikan layang di lokasi penelitian, yaitu perairan Kabupaten Rembang. Berdasarkan hasil penelitian menunjukkan bahwa rata-rata SPL di perairan Kabupaten Rembang dari tahun 2018 hingga tahun 2020 adalah 30°C, dan konsentrasi klorofil-a memiliki rata-rata sebesar 1,186 mg/m3. Berdasarkan analisis regresi linier berganda didapat nilai koefisien determinasi (R2) sebesar 0,284672. Nilai ini menunjukkan bahwa SPL dan klorofil-a memiliki pengaruh positif terhadap hasil tangkapan ikan layang di Kabupaten Rembang pada tahun 2018-2020, yakni sebesar 28,47%.Kata kunci: hasil tangkapan, ikan layang, suhu permukaan laut, konsentrasi klorofil-a, koefisien determinasi (R2)AbstractThe shortfin scad fish (Decapterus macrosoma) is one of the pelagic fish that is mostly caught in the waters of Rembang Regency, Central Java. That scad fish catch showed decline trend between year 2018 and year 2020. This declined could be related to environmental conditions change that affect the abundance of scad fish food source. The distribution of sea surface temperature (SST) and the concentration of chlorophyll-a can be used as the indicator for waters productivity. The purpose of this study was to determine the distribution of SST and chlorophyll-a and to find the influence of the SST and chlorophyll-a on the catch of scad fish in the study area. Based on the results, the study showed that the average SST in the waters of Rembang Regency from year 2018 to year 2020 was 30°C and the concentration of chlorophyll-a average was 1.186 mg/m3. Based on multiple linear regression analysis, the R2 value was 0.284672. This value means that SST and chlorophyll-a have a positive influence on the catch of scad fish in Rembang Regency between 2018 and 2020 year, which was 28.47%.Keywords: catch, scad fish, sea surface temperature, chlorophyll-a concentration, coefficient of determination (R2) [Aoh1]Tambahkan metode penelitian dengan singkat [Aoh2]Kata kunci cukup 5 kata dan unik  yang dapat mewakili artikel
Elevasi Muka Air di Pantai Gesing, Kabupaten Gunung Kidul, Daerah Istimewa Yogyakarta
Authors: Wahid Arbi , Ismunarti Dwi Haryo , Handoyo Gentur
Published: November 2023

Pantai Gesing terletak di Desa Girikarto, Kecamatan Panggang, Kabupaten Gunung Kidul, Yogyakarta. Secara faktual saat ini Pantai Gesing telah dimanfaatkan sebagai tempat kegiatan tambat labuh perahu/kapal perikanan atau oleh lebih kurang 100 perahu nelayan setiap harinya namun fasilitas berupa pelabuhan belum tersedia. Ketersediaan data pasang surut yang akurat dan kontinu di perairan Pantai Gesing Kabupaten Gunung Kidul Yogyakarta masih sangat terbatas. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik dan tipe pasang surut serta elevasi muka air rencana menggunakan metode admiralty dan least square. Hasil perhitungan menggunakan metode admiralty (least square) untuk nilai HHWL sebesar 1,61 (2,305) meter; MHWL sebesar 1,22 (1,695) meter; MSL sebesar 0,81 (0,81) meter; MLWL sebesar 0,4 (-0.035) meter LLWL sebesar 0 (-0,645) meter; secara berturut-turut, sementara nilai tunggang pasang surut sebesar 1,423 (2,95) meter. Berdasarkan nilai bilangan Formzahl kedua metode memiliki nilai berbeda, namun masih dalam satu tipe yang sama, yaitu mempunyai type pasang surut campuran condong ke harian ganda.AbstractGesing Beach is located in Girikarto Village, Panggang District, Gunung Kidul Regency, Yogyakarta. Factually, Gesing Beach has been used as a place to anchor fishing boats or by approximately 100 fishing boats every day, but facilities in the form of a harbor are not yet available. The availability of accurate and continuous tidal data in Gesing Beach, Gunung Kidul Regency, Yogyakarta is still minimal. This study aimed to determine the characteristics and types of tides and elevation of the plan water level using admiralty and least square methods. The results of calculations using the admiralty method (least square) for the value of HHWL of 1.61 (2.305) meters; MHWL of 1.22 (1.695) meters; MSL of 0.81 (0.81) meters; MLWL of 0.4 (-0.035) meters LLWL of 0 (-0.645) meters; respectively, while the value of tidal ridge of 1.423 (2.95) meters. Based on the value of the Formzahl number, both methods have different values but are still of the same type, which has a mixed prevailing semi-diurnal.
Universally irreducible subvarieties of Siegel moduli spaces
Authors: Mondello Gabriele , Salvati Manni Riccardo
Published: November 2023

A subvariety of a quasi-projective complex variety X
is called “universally irreducible” if its preimage inside
the universal cover of X is irreducible.
In this paper we investigate sufficient conditions for universal irreducibility.
We consider in detail complete intersection subvarieties of small codimension
inside Siegel moduli spaces of any finite level.
Moreover, we show
that, for

g
≥
3

{g\geq 3}

, every Siegel modular form is the product of finitely many
irreducible analytic functions on the Siegel upper half-space

ℍ
g

{{\mathbb{H}}_{g}}

.
We also discuss the special case of singular theta series of weight

1
2

{\frac{1}{2}}

and of Schottky forms.
New quantum integral inequalities for left and right log-ℏ-convex interval-valued functions
Authors: Cheng Haiyang , Zhao Dafang , Zhao Guohui , Torres Delfim F. M.
Published: November 2023

We introduce the concept of quantum integration
for interval-valued functions and establish new
q-Hermite–Hadamard and q-Hermite–Hadamard–Fejér
inequalities for left and right

log
⁢
-
⁢
h

{\mathrm{log}\text{-}h}

-convex interval-valued
functions. Our results generalize the known ones in the literature
and serve as a foundation for future studies
in inequalities for interval-valued functions
and interval differential equations.
We illustrate our results with examples.
On the standing wave in coupled fractional Klein–Gordon equation
Authors: Guo Zhenyu , Zhang Xin
Published: November 2023

The aim of this paper is to deal with the standing wave problems in coupled nonlinear fractional Klein–Gordon equations. First, we establish the constrained minimizations for a single nonlinear fractional Laplace equation. Then we prove the existence of a standing wave with a ground state using a variational argument. Next, applying the potential well argument and the concavity method, we obtain the sharp criterion for blowing up and global existence. Finally, we show the instability of the standing wave.
On geometrical characteristics and inequalities of new bicomplex Lebesgue Spaces with hyperbolic-valued norm
Authors: Toksoy Erdem , Sağır Birsen
Published: November 2023

In this work, it is assumed that the norm over bicomplex numbers is the
hyperbolic (

𝔻

{\mathbb{D}}

-valued) norm. In this paper, we provide an overview
of bicomplex Lebesgue spaces and investigate some of their geometric
properties, including

𝔹
⁢
ℂ

{\mathbb{B}\mathbb{C}}

-convexity,

𝔹
⁢
ℂ

{\mathbb{B}\mathbb{C}}

-strict convexity, and

𝔹
⁢
ℂ

{\mathbb{B}\mathbb{C}}

-uniform convexity. Moreover, the basic inequalities such as

𝔻

{\mathbb{D}}

-Hölder’s inequality and

𝔻

{\mathbb{D}}

-Minkowski inequality for bicomplex
Lebesgue spaces are presented, used to show geometric properties.
Fractal Mellin transform and non-local derivatives
Authors: Khalili Golmankhaneh Alireza , Welch Kerri , Serpa Cristina , Jørgensen Palle E. T.
Published: November 2023

This paper provides a comparison between the fractal calculus of fractal sets and fractal curves. There are introduced the analogues of the Riemann–Liouville and Caputo integrals and derivatives for fractal curves, which are non-local derivatives. Moreover, the concepts analogous to the fractional Laplace operator to address fractal non-local differential equations on fractal curves are defined. Additionally, in the paper it is introduced the fractal local Mellin transform and fractal non-local transform as tools for solving fractal differential equations. The results are supported with tables and examples to demonstrate the findings.
Reproducing kernel Banach space defined by the minimal norm property and applications to partial differential equation theory
Authors: Żynda Tomasz Łukasz
Published: November 2023

It it well known that a Hilbert space V of functions defined on U is a reproducing kernel Hilbert space if and only if for any

z
∈
U

{z\in U}

, in the set

V
z

:=

{

f
∈
V

∣

f
⁢

(
z
)

=
1

}

{V_{z}:=\{f\in V\mid f(z)=1\}}

, if non-empty, there is exactly one element with minimal norm and there is a direct connection between the reproducing kernel and such an element. In this paper, we define reproducing kernel Banach space as a space which satisfies this property and the reproducing kernel of it using this relation. We show that this reproducing kernel share a lot of basic properties with the classical one. The notable exception is that in Banach spaces the equality

K
⁢

(
z
,
w
)

=

K
⁢

(
w
,
z
)

¯

{K(z,w)=\overline{K(w,z)}}

does not have to be true without assumptions that

K
⁢

(
z
,
w
)

≠
0

,

K
⁢

(
w
,
z
)

≠
0

{K(z,w)\neq 0,K(w,z)\neq 0}

. We give sufficient and necessary conditions for a Banach space of functions to be a reproducing kernel Banach space. At the end, we give some examples including ones which show how reproducing kernel Banach spaces can be used to solve extremal problems of Partial Differential Equations Theory.
Bilinear multipliers on weighted Orlicz spaces
Authors: Üster Rüya
Published: November 2023

Let

Φ
i

{\Phi_{i}}

be Young functions and

ω
i

{\omega_{i}}

be weights on

ℝ
d

{\mathbb{R}^{d}}

,

i
=

1
,
2
,
3

{i=1,2,3}

. A locally integrable function

m
⁢

(
ξ
,
η
)

{m(\xi,\eta)}

on

ℝ
d

×

ℝ
d

{\mathbb{R}^{d}\times\mathbb{R}^{d}}

is said to be a bilinear multiplier on

ℝ
d

{\mathbb{R}^{d}}

of type

(

Φ
1

,

ω
1

;

Φ
2

,

ω
2

;

Φ
3

,

ω
3

)

{(\Phi_{1},\omega_{1};\Phi_{2},\omega_{2};\Phi_{3},\omega_{3})}

if

B
m

⁢

(

f
1

,

f
2

)

⁢

(
x
)

=

∫

ℝ
d

∫

ℝ
d

f
1

^

⁢

(
ξ
)

⁢

f
2

^

⁢

(
η
)

⁢
m
⁢

(
ξ
,
η
)

⁢

e

2
⁢
π
⁢
i
⁢

〈

ξ
+
η

,
x
〉

⁢

𝑑

ξ

⁢

𝑑
η

B_{m}(f_{1},f_{2})(x)=\int_{\mathbb{R}^{d}}\int_{\mathbb{R}^{d}}\hat{f_{1}}(%
\xi)\hat{f_{2}}(\eta)m(\xi,\eta)e^{2\pi i\langle\xi+\eta,x\rangle}\,d\xi\,d\eta

defines a bounded bilinear operator from

L

ω
1

Φ
1

⁢

(

ℝ
d

)

×

L

ω
2

Φ
2

⁢

(

ℝ
d

)

{L^{\Phi_{1}}_{\omega_{1}}(\mathbb{R}^{d})\times L^{\Phi_{2}}_{\omega_{2}}(%
\mathbb{R}^{d})}

to

L

ω
3

Φ
3

⁢

(

ℝ
d

)

{L^{\Phi_{3}}_{\omega_{3}}(\mathbb{R}^{d})}

.
We deduce some properties of this class of operators. Moreover,
we give the methods to generate bilinear multipliers between weighted Orlicz spaces.
The crystal structure of (E)-2-methoxy-6-(((5-methyl-1,3,4-thiadiazol-2-yl)imino)methyl)phenol, C11H11N3O2S
Authors: Huang Qiuping , Zeng Zhenfang , Huang Qiuchan
Published: November 2023

C11H11N3O2S, orthorhombic, Pna21 (no. 33), a = 22.6572(9) Å, b = 10.0205(4) Å, c = 4.9023(2) Å, V = 1113.01(8) Å3, Z = 5, Rgt
(F) = 0.0341, wRref
(F
2) = 0.0857, T = 297 K.
Pirmosios Baltijos šalyse taikomos robotinės chirurgijos sistemos „Versius“ daugiadisciplinis diegimas
Authors: Petrulionis Marius , Šilinskaitė Ugnė , Kryzauskas Marius , Rybakovas Andrius , Rudaitis Vilius , Andreika Linas , Cekauskas Albertas , Arnas  , Zelvys Arunas , Jankevicius Feliksas , Peceliunas Valdas , Januskevicius Tomas , Matulevicius Augustinas , Strupas Kestutis , Poskus Tomas
Published: November 2023

On June, 2023, Vilnius University Hospital Santaros Klinikos started robotic-assisted operations using VERSIUS robotic surgery system (CMR, Cambridge, UK) and performed 29 robotic surgeries within the first 3 weeks. This surgical system was purchased with funding from the European Regional Development Fund. Comprehensive three-month-long learning courses were organized for a total number of 32 persons, forming 8 independent teams, each consisting of 2 surgeons and 2 nurses. Learning courses consisted of online theoretical training modules, a one-week learning course including technical skills training with a simulator and dry runs as well as cadaveric surgical cases. Furthermore, an additional learning module included dry runs in the operating room prior to the first surgeries, following live and online proctored surgical cases. This enabled a rapid and smooth introduction of the robotic surgical system into clinical practice without putting patients at risk. Abdominal surgeons, urologists, and gynecologists have already performed surgeries using the VERSIUS surgical system and no major complications have been reported. Thoracic surgeons are underway to begin thoracic robotic-assisted surgeries, completing the multidisciplinary VERSIUS surgical system implementation process.
Our goal is to share initial experience with robotic VERSIUS surgical system and evaluate its implementation in Vilnius University Hospital Santaros Klinikos.
Vertikaliosios skrandžio rezekcijos dešimties metų rezultatai: sisteminė literatūros apžvalga
Authors: Jurgutavičius Povilas , Juodeikis Žygimantas
Published: November 2023

Introduction. Sleeve gastrectomy is currently the most popular surgical treatment for obesity worldwide. However, there is still a lack of data on long-term outcomes of this procedure. The objective of this study was to review and analyze the scientific literature and evaluate the long-term (10 years and beyond) results of sleeve gastrectomy for the surgical treatment of obesity. Methods. A literature search was conducted using the PubMed search engine, resulting in 1 443 publications on the long-term results of sleeve gastrectomy for obesity. After applying search criteria and selecting articles by title and abstract, 7 results were included in the systematic review. Results. The included studies involved 2 399 patients after sleeve gastrectomy, with an average age of 41.8 years and 1 577 (65.7%) of all patients being women. The mean preoperative body mass index of the patients in the selected publications was 45.1 kg/m2. Long-term (10 years and beyond) weight loss outcomes were assessed in terms of excess body weight loss. Among the studies, the average excess body weight loss achieved was 54.2%, with a maximum of 70.5% and a minimum of 36%. Arterial hypertension remission was achieved in 23.6%, obstructive sleep apnea remission was achieved in 62.2%, type II diabetes remission was achieved in 54.4%, and dyslipidemia remission was achieved in 42.5% of patients. Conclusion. Sleeve gastrectomy provides a stable reduction in excess body weight and control of comorbidities over 10 years. However, more data on the long-term results of sleeve gastrectomy are needed to compare it with other surgical approaches in the treatment of obesity.
The problem of automating the planning of forces, means and resources for management of counteraction of emergency situations
Authors:   Institute of Problems of Mathematical Machines and Systems NAS of Ukraine, Yalovets A.L.
Published: November 2023

The article deals with the issue of automating the planning of forces, means and resources used in the process of countering an emergency situation. A formal description of the task of planning forces, means and resources is provided, and it is justified that this task includes two interrelated tasks, which involve the assessment of the potential capabilities of the analyzed region in terms of the available forces, means and resources for countering an emergency situation and the generation of options for groupings of forces , means and resources functionally sufficient to counteract the analyzed emergency situation, taking into account the set of restrictions. The issue of automating the solution of the problems of assessing the potential opportunities of the region and generating variants of groupings of forces, means and resources is considered in detail. The main functions of the ANALYSIS and SYNTHESIS systems, by means of which these tasks are solved, are characterized. It is substantiated that thanks to the solution of these problems, the adaptation of the electronic action plan to the real possibilities of the region is ensured.
Felnőttkori B-típusú Niemann–Pick-betegség szemészeti manifesztációja
Authors: Angeli Orsolya , Nagy Zoltán , Schneider Miklós
Published: November 2023

A Niemann–Pick-betegség a lizoszomális tárolási betegségek csoportjába tartozó
ritka, autoszomális recesszíven öröklődő betegség. Hátterében a szfingomielináz
enzim hiánya vagy csökkent működése, illetve az intracelluláris
koleszterintranszporter fehérje deficientiája áll, és a lebontási zavar miatt a
sejtek lizoszómáiban szfingomielin és koleszterin szaporodik fel. A betegség 5
altípusát (A, A/B, B, C, D) különböztetjük meg. A szerzők egy 24 éves,
gyermekkorában B-típusú Niemann–Pick-betegséggel diagnosztizált fiatal férfi
esetét mutatják be, különös tekintettel a betegség szemészeti manifesztációjára.
A beteg vizsgálata során fundusfotók és fundusautofluoreszcencia-felvételek
készültek, továbbá optikaikoherencia-tomográfiás (OCT-), OCT-angiográfiás
(OCTA-) és látótér (perimetria)-vizsgálatok történtek. A szemfenék
vizsgálatakor, illetve a fundusfotókon jól látszott a betegségre jellegzetes
macularis gyűrű alakú udvar (továbbiakban halo) és a cseresznyepiros folt a
foveában. Az OCT-felvételeken a macularis halo megfelelően nagy reflektivitású,
fokális megvastagodás ábrázolódott a ganglionsejtrétegben, a foveola területe
megkímélt volt. A látótérvizsgálattal mindkét szem látótere ép volt. A
bemutatott páciens esetéhez hasonlóan a B-altípusba tartozó betegeknél a tünetek
enyhébbek, a visceralis tünetek mellett idegrendszeri tünetek nincsenek, és a
specifikus szemészeti eltérések nem okoznak látásromlást. Jelenleg a
Niemann–Pick-betegség ritka betegségnek számít, sok esetben a betegek diagnózisa
késik vagy akár el is maradhat az aspecifikus vagy enyhe tünetek miatt. A
szakterületek közötti konzultáció révén belgyógyászati szempontból tünetszegény
esetekben a szemészeti vizsgálat is hozzájárulhat a jó diagnózishoz. Az időben
történő diagnózissal a tünetek az egyre bővülő terápiás lehetőségeknek
köszönhetően mérsékelhetők, a betegség progressziója stabilizálható, a betegek
élettartama így növekedhet. Orv Hetil. 2023; 164(46): 1838–1844.
Presepsin as diagnostic test in neonatal sepsis
Authors: Artana Luh Made Diah Wulandari , Putra Putu Junara , Hartawan I Nyoman Budi , Purniti Ni Putu Siadi , Sidiartha I Gusti Lanang , Mayangsari Ayu Setyorini Mestika
Published: November 2023

Background: Sepsis is clinical syndrome characterized by hemodynamic, respiratory and metabolic changes resulting from infectious processes that trigger systemic inflammatory response syndrome. The latest diagnosis enforcement of neonatal sepsis in the form of biomarker, presepsin. This research was established to estimate the accuracy of presepsin in diagnosing neonatal sepsis in preterm
Methods: This study is cross-sectional study with diagnostic test design to determine the accuracy of presepsin examination in diagnosing neonatal sepsis with gold standard used double-sided blood culture. Sample size was 62 samples. Data analysis including sensitivity, specificity, positive predictive value, negative predictive value and accuracy of presepsin as diagnostic test calculated by using 2x2 table.
Results: This study involved 62 subjects. Subjects were dominated by median age 3, male 66.1%, birth weight 1500-<2500 grams 53.2%, vigorous baby 51.6%, caesarean section 67.7%, median leukocytes 4.8, median platelets 101.4, median IT-ratio 0.33, procalcitonin 2.21 and positive blood culture 77.4%. The AUC value is 85% and ROC curve showed 2 cut off values, namely 150 pg/mL, 44 subjects suffer neonatal sepsis with sensitivity 91.7%, specificity 78.57%, positive predictive value 93.62%, negative predictive value 73.3%, positive trend ratio 4.28, prevalence 77% and accuracy 88.71%. Cut off 243 pg/mL sensitivity 75%, specificity 85.7%, positive predictive value 94.6%, negative predictive value 50.6%, positive trend ratio 5.25, prevalence 77% and accuracy 77.46%.
Conclusion:  A cut off value 150 pg/mL, sensitivity 91.67% presepsin can be used as screening tool and cut off 243 pg/mL with specificity 85.7% as high specificity diagnostic test.
Urgent-start peritoneal dialysis (USPD): A Literature Review
Authors: Wisadianta Gede Resha , Ni Wayan Anantika Riani
Published: November 2023

Peritoneal dialysis can be a treatment for kidney replacement therapy, and the lining of the abdomen can be used as the filter for dialysis. The dialysate is inserted into the abdomen through a peritoneal dialysis catheter. Conventionally, people would wait two weeks after getting a catheter insertion before starting dialysis. This period was to give enough time for the wound to heal correctly. But some studies found that chronic kidney disease patients who need to begin dialysis immediately after having a catheter insert (urgent-start peritoneal dialysis) had similar results to those who started dialysis more than two weeks after inserting the catheter (conventional-start peritoneal dialysis). Peritoneal dialysis is a significant method of kidney replacement therapy. Most patients who need dialysis right away are given hemodialysis instead of peritoneal dialysis, which means that peritoneal dialysis is not used as much as it could be. Urgent-start peritoneal dialysis is an effective and cost-effective option instead of starting conventional dialysis. There is not enough evidence to help guide the treatment, but involvement of the knowledge with this technique is required. This article overviews why urgent-start peritoneal dialysis is important and how it can be used in practice.
Keluhan vertigo dalam kasus pendarahan subdural spontan dengan terapi konservatif: sebuah laporan kasus
Authors: Melati I Gusti Ayu Prita Sari , Sumada I Ketut
Published: November 2023

Introduction: Vertigo is an atypical symptom of SDH so that it is sometimes missed for further examination. Given the relatively high mortality of spontaneous SDH, an accurate diagnosis is necessary so that appropriate therapy can be given. This case report presents an elderly man who came with complaints of vertigo.
Case Presentation: A 50-year-old male patient who complained of spinning dizziness and imbalance when walking since three weeks of SMRS. Complaints are felt to come and go, get worse when walking and decrease when you are resting. The results of the physical examination found bilateral SDH in the CT-Scan examination. The patient denied any history of trauma or taking blood thinners so it was considered a spontaneous SDH. Subsequently, the patient was admitted to the hospital for further management. Ten days later there was clinical improvement and the patient continued polyclinical treatment.
Conclusion: Based on this case report, vertigo is one of the non-typical clinical manifestations of SDH that can occur spontaneously.
 
Latar Belakang: Vertigo merupakan gejala atipikal dari SDH sehingga kadang luput untuk dilakukan pemeriksaan lanjutan. Mengingat mortalitas SDH spontan cukup tinggi, diagnosis yang akurat diperlukan agar terapi yang seusai dapat diberikan. Laporan kasus ini menampilkan seorang laki-laki lansia yang datang dengan keluhan vertigo.
Presentasi kasus: Pasien laki-laki berusia 50 tahun yang mengeluh pusing berputar dan ketidakseimbangan ketika berjalan sejak tiga minggu SMRS. Keluhan dirasakan hilang timbul, memberat saat berjalan dan berkurang saat tengah beristirahat. Pada hasil pemeriksaan fisik ditemukan Ditemukan SDH bilateral dalam pemeriksaan CT-Scan. Pasien menyangkal riwayat trauma atau minum obat pengencer darah sehingga dianggap sebagai SDH spontan. Selanjutnya pasien dirawat di Rumah Sakit untuk tatalaksana lebih lanjut. Sepuluh hari kemudian terdapat perbaikan klinis dan pasien melanjutkan perawatan secara poliklinis.
Simpulan: Berdasarkan pada laporan kasus ini, vertigo adalah salah satu menampilkan manifestasi klinis yang tidak khas SDH dapat terjadi secara spontan.
Therapeutic Plasma Exchange (TPE) in pregnancy: A case report
Authors: Mulyantari Ni Kadek , Widyantara I Wayan
Published: November 2023

Background: Therapeutic Plasma Exchange (TPE) is a therapeutic procedure that uses an apheresis machine to remove the patient's plasma. The main goal of TPE is to eliminate pathological mediators in plasma, such as autoantibodies, immune complexes, cryoglobulins, toxins and lipids that can cause several clinical effects in patients ranging from mild symptoms such as weakness shortness of breath to paralysis and respiratory failure. This case study aims to evaluate the effect of TPE in pregnancy with a history of Myasthenia Gravis (MG).
Case Presentation: A female patient, 26 years old, 16 weeks of pregnancy, with a history of MG for 3 years and regularly consumes Mestinon. The patient’s general condition is weak, with blood pressure of 100/65 mmHg, pulse rate of 110 times/minute, body temperature of 36.5oC, and breathing with the help of a ventilator. Diagnosis of 16 weeks G2P1001 with myasthenic crisis. The clinical condition improved after undergoing TPE procedures 3 times, and the patient could breathe spontaneously.
Conclusion: TPE in Myasthenia gravis crisis is highly recommended and is often used as the first choice of therapy. Various physiological changes may occur during pregnancy and may affect the effectiveness and increase the side effects of TPE. Therefore, it is necessary to do some special preparation and treatment.
Correlation of zinc level and cognitive in obese children
Authors: Saputra I Made Yullyantara , Sidiartha I Gusti Lanang , Karyana I Putu Gede
Published: November 2023

Introduction: Obesity is a global health problem. The World Health Organization (WHO) stated that obesity reached 300 million people. Obesity can cause numerous comorbidities; one of them is decrease in cognitive ability. Patients with obesity show a structural change in the brain, which is the decrease in hippocampus volume, which is the center for learning and memory, compared to healthy children. Obese children are often found with low zinc levels. This study aimed to prove there is positive correlation between zinc levels and cognitive in obese children.
Methods: This was a cross sectional study with consecutive sampling to 88 obese children aged 6-12 years old in primary school. Data collected include age, sex, weight, height, physical activities, zinc, and cognitive score. Data analysis performed with multivariate test which is linear regression analysis, and correlation test.
Results: We analyzed 88 subjects with obesity in this study. The result showed positive correlation between zinc levels and cognitive, in which r = 0.6 and p < 0.01. Multivariate analysis used linear regression to assess the pure correlation between zinc and cognitive, the analysis showed that the correlation between zinc and cognitive is â = 0.836 points.
Conclusion: This research proved that there is a strong positive correlation between zinc levels and cognitive in obese children.
Fibula free flap for mandibular reconstruction following total en bloc resection in ameloblastoma: a case report and literature review
Authors: Laksmi Putu Pradnyasanti , Tillasman Natassya Sandra , Hamid Agus Roy Rusly Hariantana , Rooseno Ratna Rayeni Natasha
Published: November 2023

Background: The fibular free flap is considered the gold standard in mandibular bone reconstruction. It has a high survival rate, is well-vascularized, and fits seamlessly into long-bone defects. The purpose of this article is to describe the use of vascularized fibular free flap in mandibular reconstruction after total en bloc resection in case of ameloblastoma suspected of repeated trauma to the mandible.
Method: A case report of a 26-year-old  patient undergoing a mandibular reconstruction using fibula osteocutenous free flap following total en bloc resection due to ameloblastoma on mandibular symphisis region was monitored using Doppler ultrasound every 15 minutes for three to five days.
Result: Within four months of treatment, the patient had improved, and the graft was found to be viable.
Conclusion: The severity and size of the affected tissue, the tumour's histological arrangement, and the consequences were the influence of whether or not ameloblastoma patients should require surgery. To determine the best course of treatment for each individual case of ameloblastoma, an accurate clinical examination and image evaluation are required.
Antibiogram of Acinetobacter baumannii isolated from Intensive Care Unit at Prof. dr. I.G.N.G. Ngoerah Hospital in 2020-2022
Authors: Setyojatmiko Indramawan , Fatmawati Ni Nengah Dwi , Tarini Ni Made Adi
Published: November 2023

Background: Acinetobacter baumannii infection is a severe problem since it tends to be multi-resistant to many antibiotics. This study aimed to determine the prevalence of A. baumannii isolated from blood, urine, and sputum cultures and their antibiotic resistance patterns.
Methods: Data of A. baumanii isolated from clinical specimens of Intensive Care Unit (ICU) wards patients were collected retrospectively from laboratory records in the Clinical Microbiology Department of Prof. Dr. I. G. N. G. Ngoerah General Hospital during 2020-2022. Identification and antimicrobial susceptibility tests were conducted using the Vitek-2 Compact system (bioMérieux, France). Isolates resistant to ≥ 3 antibiotic classes were categorized as multidrug-resistant (MDR) A. baumanii.
Results: A. baumanii collected from sputum, blood, and urine in Intensive Care Unit (ICU) wards were 63%, 13%, and 7.5% from 2020 until 2022. Most A. baumanii isolates in 2020, 2021, and 2022 were susceptible to Amikacin, which was 75%, 78%, and 76%, respectively. Furthermore, the isolates that were susceptible to Trimethoprim/Sulfamethoxazole were 66%, 81%, and 72%, followed by Tigecycline, 80%, 61%, and 56% respectively. A. baumanii, however, showed low sensitivity to Meropenem even though susceptibility is getting higher each year. Almost all the isolates were resistant to ceftriaxone.
Conclusions: Acinetobacter baumannii isolates isolated during 2020-2022 showed high resistance to penicillin, cephalosporin and fluoroquinolones. Although A. baumanii was resistant to carbapenem, its susceptibility tends to increase throughout the 3 years of this study. These data could be considered for empirical therapy of A. baumanii infections.
Supraventricular tachycardia in pregnancy: a rare case series and dilemmatic antiarrhythmic drug choices in the rural area
Authors: Nugraha Putra Ngurah Agung Reza Satria , Arjawa Ida Bagus Komang , Prabawa Aditya
Published: November 2023

Background: The prevalence of cardiovascular disease in pregnancy is reported to be increasing and becoming a major cause of maternal morbidity and mortality. The incidence of arrhythmia during pregnancy has been linked to increased fetal mortality and complications. Arrhythmias can develop de novo during pregnancy or be exacerbated by pregnancy.
Case Description: A 35-year-old (third trimester) and a 25-year-old (second trimester) woman complained of shortness of breath and palpitations. The first patient was in her sixth pregnancy, with three live births and two miscarriages. Meanwhile, the second patient was in her first pregnancy and had never miscarried. The first and second patients' pulse rates were 180 and 160 beats per minute, respectively. In both cases, 12-lead electrocardiography revealed an atrioventricular nodal re-entrant tachycardia rhythm. Initially, both patients were given carotid artery massages. The first patient's rhythm returned to normal sinus, but carotid artery massage failed in the second patient. Then, the second patient received a slow bolus of 0.5 mg digoxin IV. The heart rate returned to normal sinus rhythm following the observation. Both patients were admitted to the intensive care unit.
Conclusion: Atrioventricular nodal re-entrant tachycardia is a type of paroxysmal supraventricular tachycardia. Effective management highly depends on both clinical presentation and the trimester of pregnancy. This arrhythmia can be treated with vagal maneuvers in mild cases. When vagal maneuvers fail, medical management is preferred. The main concern with using antiarrhythmic drugs during pregnancy is the risk of fetal harm and the decision should be tailored based.
Macroscopic and microscopic features of pancreatic scaffold generated by SDS-based decellularization using multiple needle injections
Authors: AA Ayu Asri Prima Dewi  , Komang Trisna Sumadewi  , Putu Diah Witari  , Fransiscus Fiano Anthony Kerans  , Luh Gde Evayanti  , Dewa Ayu Agung Alit Suka Astini
Published: November 2023

Background: Pancreatic tissue engineering requires a scaffold in addition to cells and signaling. An adequate scaffold no longer contains cells but retains its extracellular matrix. Biological scaffolds from organ or tissue decellularization are widely used because they can retain the extracellular matrix essential for cell proliferation and differentiation. Pancreatic scaffolds were developed for pancreatic tissue engineering through various decellularization techniques. Available decellularization techniques have advantages and disadvantages, and the development of new techniques is necessary. This study aims to characterize pancreatic scaffold generated by SDS-based decellularization using multiple needle injections.
Method: The rat pancreas was isolated and injected with multiple SDS with graded concentration (0,1-1%) using a 1 cc syringe. Scaffold characterization was performed using hematoxylin-eosin (H&E) staining.
Results: The results obtained were the loss of cells in the pancreatic scaffold with intact extracellular matrix. Macroscopic appearance after decellularization showed a translucent, white, and flabby pancreas. Microscopic image after decellularization showed pancreatic tissue with cell loss but visible extracellular matrix.
Conclusion: This study can produce an SDS-based decellularized pancreatic scaffold using multiple needle injections with adequate macroscopic and microscopic characteristics.
Current modalities for the diagnostic and management approach of buerger’s disease: a case report and comprehensive review
Authors: Suwirya Agung Pradnyana , Putri Putu Eka Dianti , Permatasari I Gusti Ayu Wijayanty , Pradnyana Bagus Ari
Published: November 2023

Background: Thromboangiitis obliterans (TAO or Buerger’s disease) is a non-atherosclerotic inflammatory vascular disease usually related to smoking. Until now, there is no consensus establishing the diagnosis and standard treatment.
Case Illustration: A 74-year-old smoker woman complained of blackening and painful fingertips in both upper limbs. On upper-extremities examination, we found necrotic gangrene at the 3rd fingertips of the right hand, and the 2nd and 4th fingertips of the left hand, with limitation of the movement at the affected finger due to the pain. On laboratory findings, there was a leukocytosis, mild Anemia, no coagulopathy, and normal autoimmune screening. Doppler Ultrasonography showed vascular incompetence of the left palmar arch artery, with no deep or superficial vein thrombosis. Arteriography revealed multiple stenosis of the Left Radial artery and Right Ulnar artery with collateral corkscrew-shaped. The patient was diagnosed with peripheral Critical Limb Threatening Ischemia caused by TAO, which underwent conservative management for 10 days and Percutaneous Trans Angioplasty (PTA) ballooning.
Discussion: Buerger disease commonly affects smoker men between 40-45 years old. Several clinical criteria were used to establish TAO, including Shinoya and Olin's criteria. There are still no specific management guidelines for TAO, and smoking cessation is the only accepted effective treatment to prevent the progression of the disease and avoid amputation, followed by conservative and interventional management for patients with Critical Limb Ischemia.
Conclusions: Awareness of the entity and familiarity with the clinical, angiographic, and pathologic features are the keys to a prompt and correct diagnosis of TAO. Although still controversial, endovascular intervention is regarded as a potentially efficacious approach in TAO with critical limb ischemia management.