bluuebunny/crossref_metadata_2025 huggingface dataset:
Parameter Estimations of Normal Distribution via Genetic Algorithm and Its Application to Carbonation Depth
Authors: Boonthiem Somchit , Sutikasana Chatchai , Klongdee Watcharin , Ieosanurak Weenakorn
Published: March 2023

In this paper, we propose a method for estimating Normal distribution parameters using genetic algorithm. The main purpose of this research is to identify the most efficient estimators among three estimators for Normal distribution; Maximum likelihood method (ML), the least square method (LS), and genetic algorithm (GA) via numerical simulation and three real data, carbonation depth of Concrete Girder Bridges data examples which are based on performance measures such as The Root Mean Square Error (RMSE), Kolmogorov-Smirnov test, and Chi squared test. The simulation studies are conducted to evaluate the performances of the proposed estimators and provide statistical analysis of the real data set. The numerical results, x^2, show that the genetic algorithm performs better than other methods for actual data and simulated data unless the sample size is small.
Ylimmän johdon päätökset julkishallinnon paradigmojen ja kuntajohtamisen heijastumina
Authors: Jäntti Anni , Leponiemi Ulriika , Parkkinen Jonne , Airaksinen Jenni
Published: March 2023

Local executive leaders’ decisions reflecting public governance paradigms and local governance
In this article, we scrutinize how local executive leaders’ decisions as part of local governance and management eventually illustrate the prevailing governance paradigms. The article builds on extant literature on the development of governance paradigms and their impact on local governance and management. The empirical qualitative document analysis explores executive leaders’ decision-making themes and their emphasis in the city of Helsinki in two different periods of time. The results show a clear shift in the emphasis of themes, revealing different management priorities that reflect different kinds of governance paradigms. Our research shows that the content of local executive leaders’ decisions reveals what is considered important in local governance and how these valuations become concrete through the emphasis of certain governance relations and management practices.
Hähmäinen ja historiaton?
Authors: Raisio Harri , Puustinen Alisa , Wiikinkoski Tarja , Valtonen Vesa , Lindell Juha
Published: March 2023

Obscure and rootless? Fourth sector as a phenomenon and concept in the context of safety and security work
This article explores the concept and pheno­ menon of the fourth sector as an element of safety and security work. The article is based on interviews with 18 public authorities and NGO actors working in expert or managerial positions associated with nuclear emergencies. The article’s findings and previous literature indicate that the concept of the fourth sector remains somewhat unclear, rootless, and confusing. The use of the term differs in different contexts and different research streams remain rather separate and siloed. Nevertheless, the phenomenon itself is more self­evident: The fourth sector in safety and security work refers, in general, to spontaneous, temporary, and self­organizing actions appearing in informal, unstructured settings, on both the group and individual levels of civil society.
The concept of patient-oriented medicine and pharmacy
Authors: Khokhlov A. L. , Sychev D. A.
Published: March 2023

The article describes the concept of the development of patient-oriented medicine and pharmacy in the Russian Federation.
The efficacy of nutritional support and its role in the treatment of persons with sarcopenia
Authors: Pleshchev I. E. , Nikolenko V. N. , Achkasov E. E. , Shkrebko A. N. , Pleshchevа T. N. , Birg A. B. , Xinliang Z. , Grekov D. A.
Published: March 2023

The aim of the current descriptive review was to identify the role of nutrition in the prevention and treatment of sarcopenia in the elderly. Most of the publications included in this review show that protein and vitamin D intake, as well as a healthy and balanced diet, plays an important protective role against the development of sarcopenia. However, current scientific evidence is insufficient to draw sound conclusions. Although the role of nutrition in sarcopenia has been assessed in scientific publications over the past decade, most of the studies conducted are highly heterogeneous and had small sample sizes. Larger meta-analyses and randomized trials with strict inclusion criteria must better describe the role of nutrition in the development and treatment of sarcopenia. In conclusion, general recommendations on nutrition are given. A literature search was conducted in three electronic databases PubMed, Cochrane Library, Scopus, for the period from 2012 to December 1, 2022. Secondary sources included articles cited in articles extracted from the above sources. Inclusion criteria were crossover or cohort studies involving individuals ≥60 years of age. There were no restrictions on the language bias of the publication. Search strategy: key words used to describe the condition of the participants were: «old age», «infirmity», and «sarcopenia».
To the assessment of the use of sugar-reducing drugs from the position of safety
Authors: Khokhlov A. L. , Gorelov K. V. , Rybachkova J. V.
Published: March 2023

The results and the degree of safety of hypoglycaemic drugs are presented. The current work analyses the safety of the use of sulfonylurea derivatives, biguanides, thiazolidinediones, meglitinides and α-glucosidase inhibitors according to clinical studies published in the scientific literature. Macrovascular complications in diabetes mellitus (DM) develop much earlier than microvascular complications and cause death in 75 % — 80 % of patients. The safety of hypoglycaemic therapy is assessed by the occurrence of hypoglycaemia, changes in body weight, effects on the gastrointestinal tract, and, of course, is associated with the risk of cardiovascular disease. In evaluating the results of numerous clinical studies, the use of sulfonylurea drugs (except gliclazide), meglitinides, alpha-glucosidase inhibitors (acarbose), and thiazolidinediones are not recommended in patients with a very high cardiovascular risk for treating type 2 diabetes due to evidence of an adverse effect on prognosis, or the presence of conflicting data or the lack of sufficient arguments for the cardiovascular safety of drugs. Metformin remains the preferred initial therapy with good tolerability.
An efficient metal-free and catalyst-free C–S/C–O bond-formation strategy: synthesis of pyrazole-conjugated thioamides and amides
Authors: Sharma Shubham , Singh Dharmender , Kumar Sunit , Vaishali  , Jamra Rahul , Banyal Naveen , Deepika  , Malakar Chandi C , Singh Virender
Published: March 2023

An operationally simple and metal-free approach is described for the synthesis of pyrazole-tethered thioamide and amide conjugates. The thioamides were generated by employing a three-component reaction of diverse pyrazole C-3/4/5 carbaldehydes, secondary amines, and elemental sulfur in a single synthetic operation. The advantages of this developed protocol refer to the broad substrate scope, metal-free and easy to perform reaction conditions. Moreover, the pyrazole C-3/5-linked amide conjugates were also synthesized via an oxidative amination of pyrazole carbaldehydes and 2-aminopyridines using hydrogen peroxide as an oxidant.
Sikap Ilmiah Siswa Sekolah Menengah Atas (SMA): Pengembangan Instrumen
Authors: Reni Andriani
Published: March 2023

Penelitian ini bertujuan untuk mengembangkan instrumen Sikap Ilmiah siswa Sekolah Menengah Atas. Metode penelitian ini adalah metode survei terapan. Data sikap ilmiah siswa sekolah menengah atas diperoleh melalui kuesioner. Enam dimensi dari sikap ilmiah siswa diperiksa dalam penelitian ini, keingintahuan, sikap terbuka, penghormatan terhadap data atau fakta, fleksibilitas dalam berpikir, pemikiran kritis, dan sikap sensitif terhadap lingkungan. Seorang pakar kelompok mengkonfirmasi validitas konten dari Sikap Ilmiah siswa  dengan 25 item yang telah diberikan kepada 122 siswa kelas XII IPA Sekolah Menengah Atas. Data dianalisis menggunakan model Rasch yang memenuhi kriteria unidimensionality, item fit, estimasi kesulitan / kemampuan, reliabilitas, dan fungsi informasi. Hasil dari model Rasch menunjukkan bahwa ada 22 item Sikap Ilmiah yang sesuai dengan model Rasch dan reliabilitas tinggi. Sikap ilmiah Siswa Sekolah Menengah Atas dapat diterima sebagai instrumen yang baik untuk mengumpulkan data. Studi ini menunjukkan bahwa Sikap Ilmiah Siswa Sekolah Menengah Atas akan terbukti menjadi instrumen yang berguna untuk mengukur sikap ilmiah Siswa Kelas XII IPA Sekolah Menengah Atas untuk topik laju reaksi dalam pembelajaran kimia.
Pengembangan Buku Panduan Permainan Angin Puyuh dalam Meningkatkan Keterampilan Sosial pada Pembelajaran IPA SD
Authors: Rudi Hartono  , I Wayan Suastra  , Ida Bagus Putu Arnyana
Published: March 2023

Tujuan penelitian ini merupakan: (1) untuk mengembangkan panduan permainan angin puyuh menjadi media yg menarik dan menyenangkan & acceptable, menurut kegunaan, ketepatan, kelayakan & relevansi pada menaikkan keterampilan sosial anak (2) buat mengetahui keterlaksanaan kitab pedoman permainan angin puyuh menjadi media yang menarik dan menyenangkan untuk meningkatkan keterampilan sosial anak yang teridentifikasi pada pelajaran IPA. Penelitian ini merupakan penelitian pengembangan yg menyelidiki pengembangan buku panduan permainan angin puyuh menjadi media yang menarik dan menyenangkan untuk meningkatkan keterampilan sosial anak dalam pembelajaran pembelajaran IPA sekolah dasar. Dalam penelitian ini teknik pengumpulan data yang digunakan adalah observasi, wawancara dan angket. Hasil penelitian menunjukkan bahwa: (1) pengembangan buku panduan permainan angin puyuh sebagai sarana pengajaran yang dapat diterima berdasarkan kegunaan, ketepatan, kelayakan, dan relevansinya untuk meningkatkan keterampilan sosial anak dalam pembelajaran IPA. (2) buku panduan permainan angin puyuh sebagai sarana pengajaran dan media yang menarik dan menyenagkan khususnya dalam meningkatkan keterampilan sosial pada pembelajaran IPA sekolah dasar
The Effect of Using the Project Based Learning (PjBL) Learning Model to Increase UPI YPTK Padang Students' Understanding of the Application of Basic Physics Courses
Authors: Zakirman Zakirman
Published: March 2023

The linkage and coherence of Basic Physics material with material applications in real life is a new problem in Basic Physics lectures at Putra Indonesia University YPTK Padang. The purpose of this study was to see the effect of using the PjBL model to increase students' understanding of the application of the Basic Physics course. This type of research was a quasi-experimental involving a research sample of Informatics Engineering students at the Faculty of Computer Science UPI YPTK Padang who took the Basic Physics course in the 2019/2020 academic year. The sampling technique used is random sampling. In this study the sample class was divided into two categories, namely the experimental class of 51 students and the control class of 51 students. The instrument used is a work assessment sheet in the form of a portfolio. The data analysis technique used was an independent sample t-test, with prerequisite tests first being carried out, namely normality and homogeneity tests. Based on the results of the data analysis performed, the sig-2 tailed value for the independent sample t-test was 0.00 < of the value α = 0.05 . The conclusion from this study is that there are differences in student understanding between classes whose lectures use the PjBL model and classes that carry out conventional learning.
Pengembangan Pembelajaran Matematika Berbasis Creative Problem Solving Terintegrasi TPACK untuk Meningkatkan Keterampilan Berpikir Tingkat Tinggi
Authors: Edy Waluyo
Published: March 2023

Guru perlu mengembangkan dan merancang pembelajaran yang mampu mengembangkan kemampuan berpikir tingkat tinggi siswa. Penelitian ini bertujuan untuk mengembangkan model pembelajaran Creative Problem Solving terintegrasi TPACK untuk mengembangkan dan meningkatkan kemampuan siswa dalam pemecahan masalahberpikir tingkat tinggi siswa. Penelitian ini merupakan penelitian pengembangan dengan model pengembangan Borg & Gall. Sampel penelitian ini adalah siswa kelas XI Sekolah Menengah Atas di Lombok Timur yang berjumlah 35 siswa, yang terdiri dari 15 siswa laki laki dan 20 siswa perempuan. Instrumen yang digunakan untuk mengumpulkan data meliputi pedoman validasi desain pembelajaran CPS terintegrasi TPACK, angket kepraktisan dan tes kemampuan berpikir tingkat tinggi pada materi integral dan penggunaanya. Analisis data yang digunakan dalam penelitian ini menggunakan analisis deskriptif. Berdasarkan analisis validasi, produk yang dikembangkan termasuk kategori valid yang ditunjukkan oleh skor rata-rata validasi produk oleh 3 ahli yaitu ahli bahasa, ahli materi dan ahli teknologi pembelajaran berturut turut 83,91; 84,64 dan 83,73. Begitu pula dari segi kepraktisan, produk yang dikembangkan juga tergolong praktis dengan rata-rata skor kepraktisan 82,63. Produk juga tergolong efektif dengan persentase keefektifan sebesar 88,57%. Produk yang dikembangkan mempunyai efek potensial dalam kategori tinggi untuk meningkatkan kemampuan berpikir tingkat tinggi siswa dengan N-Gain sebesar 0,77.
ENERGETSKI AUDIT ZGRADA JAVNE NAMJENE – NAČINI PRIKUPLJANJA PODATAKA
Authors: Vesna Kolega
Published: March 2023

Provođenje energetskog audita zgrade je veoma djelotvorna metoda s ciljem reduciranja potrošnje svih tipova energije u zgradama javne namjene. U članku je dan detaljan prikaz načina prikupljanja relevantnih podataka o zgradi nužnih za uspješnu provedbu energetskog audita zgrade koji rezultira energetsko-ekonomski optimalnim mjerama energetske efikasnosti čija implementacija osigurava značajnu uštedu energije u promatranoj zgradi javne namjene.
KVAROVI SA ZAJEDNIČKIM UZROKOM U VJEROJATNOSNIM ANALIZAMA SIGURNOSTI TEHNIČKIH SUSTAVA
Authors: Igor Vuković  , Ivan Vrbanić  , Zdenko Šimić  , Vladimir Mikuličić
Published: March 2023

Sigurnost tehničkih sustava (energetskih, industrijskih, inženjerskih postrojenja) danas je važan predmet za razmatranje zbog sve izraženije uloge tehnoloških postupaka u modernom društvu, zbog sve većih posljedica kvarova postrojenja i njihove sve veće složenosti. Posljednjih su tridesetak godina u tehničkoj inženjerskoj praksi sve prisutnije u primjeni vjerojatnosne analize. Stablom kvara sustava matematički se eksplicitno modeliraju različite vrste kvara analiziranog sustava. Statistička neovisnost osnovnih događaja, od kojih

je izgrađeno stablo kvara, nije prihvatljiva za kategoriju događaja zvanih kvarovi sa zajedničkim uzrokom. Članak razmatra načine matematičkog modeliranja kvarova sa zajedničkim uzrokom u stablima kvara tehničkih sustava u sklopu vjerojatnosne analize sigurnosti te daje praktičan osvrt temeljen na dosadašnjem iskustvu.
ASSUMER on PYP Scan for Cardiac Amyloid Typing and Origin: Case-Specific Corroborating Clinical Background and Genetic Analysis
Authors: Valsamaki Pipitsa , Liapis Konstantinos , Tsalkanis Vasileios , Chalikias Georgios , Zissimopoulos Athanassios
Published: March 2023

Suspicion for Cardiac Amyloidosis (CA) led a 75-year-old male patient with fatigue, dyspnea, and palpitations to be subjected to scintigraphic myocardial investigation with technetium-99m-pyrophosphate (99mTc-PYP, or PYP scan) in order to distinguish transthyretin-related CA (ATTR) from the light-chain Amyloidosis (AL) form. A characteristic anamnesis of bilateral carpal tunnel syndrome, vertebral canal stenosis, and senile cataract, as well as laboratory, Electrocardiographic (ECG), and echocardiographic exploration was compatible with a positive for ATTR PYP scan. Specific features on PYP scan, namely Apical Sparing, more marked Septal Uptake and an associated Equivalent cardiac retention, particularly heart-to-contralateral (H/CL) Ratio from 1 h to 3 h pi (“ASSUMER”) were coupled with a negative genetic analysis, verifying wild-type ATTR. The herein introduced “ASSUMER” on PYP scan could be a hallmark not only of the amyloid fibril subtype but also origin.
Evaluation of the Efficacy of Nitrile Gloves Exposed to Chemical Germicide on Medical Devices in Central Sterile Services Department
Authors: Chanchai Withaya , Nimnaparoj Tussaanee , Chorntapha Nuntiya , Chattrapornpong Payao , Damrongkhunawut Pattikan
Published: March 2023

Nitrile gloves are commonly used in Central Sterile Services Department in order to be often used when manually cleaning medical equipment such as personal protective equipment. As a result they are resistant to a wide range of chemicals and germicides, including alcohols, peroxides, and other sterilizing agents. In addition to providing chemical protection, nitrile gloves are resistant to punctures and tears, which is important when working with sharp medical instruments. This research focuses on the efficacy of gloves in relation to the multi-chemicals or compounds of nitrile gloves and observation at the point of use to remove soil and contact with chemicals on medical devices at the Central Sterile Supply Department. The powder-free nitrile exam gloves and extended cuff methods of chemical analysis of permeation testing of standard practice for assessment of resistance of medical gloves to permeation by chemotherapy drugs (ASTM D 6978-05), EN455 Part 1: 2000 were used to test the test method for single-use medical gloves. The standard of protective gloves against dangerous chemicals and microorganisms was tested by EN 420:2003 + A1:2009, EN388: 2016, ISO 374-1:2016, and ISO 374-5:2016. The testing of chemotherapy drugs and UV/NIS absorption spectrometry were used to measure the absorbance of test chemicals, which permeated through the specimens into the collection medium. The collection medium was circulated in a closed loop at an 11 ml/minute flow rate through the testing period. As a result, a glove user must protect against the specific chemicals or chemical mixtures to which they were exposed while manually cleaning medical devices. The physical properties of the gloves were evaluated by visual observations at the point of use for soil removal and chemical exposure to medical devices at the Central Sterile Supply Department of five hospitals. The results showed that nitrile gloves protected chemical exposure during manual cleaning of medical equipment at the point of use.
New Possibilities of Using Zosteran Pectin from the Marine Plant Zostera marina (L.)
Authors: Sergushkina Marta , Zaitseva Oksana , Khudyakov Andrey , Polezhaeva Tatyana , Solomina Olga , Paturova Inna
Published: March 2023

Zosteran pectin isolated from the perennial marine plant Zostera marina (L.) has a complex molecular structure and a wide range of biological activity. Aim Study: This study aims to identify new properties (adhesive, cryoprotective) of zosteran pectin. Materials and Methods: The adhesive properties of zosteran were investigated by evaluating the microorganism adhesiveness index and the erythrocyte participation rate. To assess the cryoprotective properties of zosteran, the cryoscopic method and various methods for assessing the viability of leukocytes (cryoresistance, cell membrane integrity, and phagocytosis) were used. Results: Zosteran pectin in each assay consistently revealed more adhesive and cryoprotective properties compared to other substances. The results revealed that zosteran at a concentration of 0.3% increase the percentage of red blood cells with lactobacilli attached to their surface. The addition of zosteran to various cryoprotectants changed the osmolarity and freezing point of only the mixture of pectin with DMSO. Zosteran/DMSO cryosolution significantly better retained the viability of leukocytes after exposure to negative temperatures (-80°C), compared with a solution containing only DMSO. Conclusion: Our data reveal new properties of zosteran, due to which pectin changes the conditions of bacterial adhesive activity. This can be used to enhance the perception of microorganisms by intestinal cells in representatives of normal microflora or to reduce it in pathogens of infectious diseases. The obtained cryoprotective effect of the solution with zosteran can be used for further research on the preservation of biological objects (spermatozoa, platelets, etc.) at low temperatures.
Correlates of Erectile Dysfunction among Diabetic Patients Attending Kinshasa Hospitals, the Democratic Republic of the Congo
Authors: Mwasa Bayauli Pascal , Atantama Magloire , Bompeka Lepira Francois , Kapongo Remy Yobo , Natuhoyila Nkodila Aliosha , Mafuta Danny Munganga , Bidingija Joseph Mabika , Lasi OnKin Kasiam Jean-Bosco , Rissassy Makulo Jean-Robert , Ditu Symphorien Mpandamadi , MBuyamba-Kabangu Jean-Rene
Published: March 2023

Objective: We assessed the frequency of erectile dysfunction and associated risk factors among diabetic patients attending Kinshasa hospitals. Methods: We enrolled 205 male diabetic patients (mean age: 53 ± 11 years) from three public hospitals at Kinshasa to assess erectile dysfunction defined by a score of 6 to 20 on International Index of Erectile Function (IIEF-5). Logistic regression model was applied to identify determinants of erectile dysfunction. A p-value ≤ 0.05 was considered significant. Results: Erectile dysfunction was observed in 59% (95% CI: 52.2 - 66%) of diabetic patients; it was mild, moderate and severe in respectively 68.6%, 25.6% and 7.5%. It commonly affected older patients (55 ± 11 years vs. 51 ± 12 years, p = 0.004) with a longer duration of diabetes (11 ± 6 years vs. 9 ± 6years, p = 0.045), abdominal obesity (p < 0.001) and diabetic retinopathy (p < 0.001). In the logistic model the odds for erectile dysfunction increased with abdominal obesity (OR: 12.9 and 95%CI [5.39-30.91]; p < 0.001), age (For age > 50 ans: 7.9 [2.62-23.74]; p < 0.001), uncontrolled diabetes (7.1 [2.43-20.62]; p < 0.001), hypertension (2.8 [1.13-6.87]; p = 0.027) and chronic kidney disease (2.5 [1.05-5.93]; p = 0.038). Conclusion: The magnitude of erectile dysfunction among diabetic patients requires early detection and precocious prevention through control of diabetes, hypertension and underlying obesity.
A Review of Porous Concrete Pavement: Compressive Strength and Clogging Investigation
Authors: Amminudin Ab Latif  , Ramadhansyah Putrajaya  , Doh Shu Ing
Published: March 2023

Pervious concrete pavements (PCPs) have been widely accepted as a green infrastructure solution for urban areas. Currently, pervious concrete is commonly used in permeable pavement systems such as roadways, sidewalks, driveways, parking lots, and other light-duty flatwork applications. However, the main disadvantage of this type of pavement is that it loses permeability over time due to clogging and lower compressive strength due to the pore's structures. These critical issues are the topic of this review paper. Laboratory test results relevant to the compressive strength, clogging and maintenance are discussed in detail. This review aims to present a compilation of prominent findings of studies focused on compressive strength, clogging and maintenance of PCPs. Note that PCPs with higher compressive strength must be used on roads with high traffic volumes. Subsequently, periodic maintenance is necessary to prevent sediment clogging and maximise the life of PCPs. Based on this review paper, the area of need for future research are identified.
The Effects of Exercise and Reminiscence Therapy on Depression and Quality of Life Among the Older Adults with Mild Alzheimer’s Disease
Authors: Azliyana Azizan  , Asilah Anum  , Ameera Faisal  , Triana Karnadipa
Published: March 2023

Alzheimer’s disease (AD) is the most common cause of dementia in older adults. Depression is an important co-morbid disorder in this group, as it may decrease their quality of life (QoL). Exercise or Reminiscence therapy (RT) is thought to be viable in lessening the degree of depression in older adults. To investigate and compare the impacts of integrated exercise and reminiscence therapy on depression level and QoL in older adults. A single-blinded quasi-experimental study with a comparison group design was conducted on 51 institutionalized older adults with mild-to-moderate AD and were grouped into (i) Reminiscence (RT, n = 17), (ii) exercise (EX, n = 16), and (iii) exercise coupled with Reminiscence (ER, n = 18). The depression level was assessed using the Cornell Scale for Depression in Dementia (CSDD); the QoL was assessed using the QOL–AD scale. A repeated-measures ANOVA was used for data analyses. Results: The reminiscence therapy alone or in combination with the exercise was effective in reducing depression levels and improved QoL in the older adults (p<.05). The reminiscence therapy alone or in combination with the exercise was effective in reducing depression levels and improved QoL in older adults. This study found significant improvements in the mean score of CSDD and QOL–AD of the ER, thus supporting its effectiveness in reducing depressive symptoms and improving QoL in mild AD. These results help as a contribute to the healthcare practices to deliver an integrated reminiscence and exercise in older adults’ rehabilitation.
Security Analysis on LUC-type Cryptosystems Using Common Modulus Attack
Authors: Izzatul Nabila Sarbini  , Tze Jin Wong  , Lee Feng Koo  , Ahmad Fadly Nurullah Rasedee  , Fatin Hana Naning  , Mohammad Hasan Abdul Sathar
Published: March 2023

LUC-type cryptosystems are asymmetric key cryptosystems based on the Lucas sequence that is extended from RSA. The security challenge is comparable to RSA, which is based on the intractability of factoring a large number. This paper analysed the security of LUC, LUC3, and LUC4,6 cryptosystems using a common modulus attack. For a common modulus attack to be successful, a message must be transmitted to two distinct receivers with the same modulus. The strengths and limitations of the LUC, LUC3, and LUC4,6 cryptosystems when subjected to a common modulus attack were discussed as well. The results reveal that the LUC4,6 cryptosystem provides greater security than the LUC and LUC3.
Pap Smear Image Analysis Based on Nucleus Segmentation and Deep Learning – A Recent Review
Authors: Nur Ain Alias  , Wan Azani Mustafa  , Mohd Aminudin Jamlos  , Shahrina Ismail  , Hiam Alquran  , Mohamad Nur Khairul Hafizi Rohani
Published: March 2023

Cervical cancer refers to a dangerous and common illness that impacts women worldwide. Moreover, this cancer affects over 300,000 people each year, with one woman diagnosed every minute. It affects over 0.5 million women annually, leading to over 0.3 million deaths. Recently, considerable literature has grown around developing technologies to detect cervical cancer cells in women. Previously, a cervical cancer diagnosis was made manually, which may result in a false positive or negative. Automated detection of cervical cancer and analysis method of the Papanicolaou (Pap) smear images are still debated among researchers. Thus, this paper reviewed several studies related to the detection method of Pap smear images focusing on Nuclei Segmentation and Deep Learning (DL) from the publication year of 2020, 2021, and 2022. Training, validation, and testing stages have all been the subject of study. However, there are still inadequacies in the current methodologies that have caused limitations to the proposed approaches by researchers. This study may inspire other researchers to view the proposed methods' potential and provide a decent foundation for developing and implementing new solutions.
Antenna Performance Enhancement using AMC Structure for 5G Frequency Range
Authors: Norfatihah Bahari  , Muhammad Zulfikar Nor Rokhizan  , Rashidah Che Yob  , Mohd Wafi Nasrudin  , Nur Hidayah Ramli  , Mohd Aminudin Jamlos  , Herwansyah Lago
Published: March 2023

This paper presents a microstrip patch antenna operated at the fifth generation (5G) frequency range, which is at 3.5 GHz. To enhance the performance of the proposed antenna, an Artificial Magnetic Conductor (AMC) structure is implemented into the design. The 1x3 AMC is sandwiched between two FR-4 substrates and the performance of the proposed antenna is compared with the antenna without AMC structure. The simulated results prove that the proposed antenna offers better reflection coefficient with -50.45 dB compared to only -15.55 dB for the conventional antenna. Wider bandwidth is also achieved with 427 MHz of frequency bandwidth as opposed to only 135 MHz for the antenna without AMC. Besides that, the integration of AMC enhances the gain of the antenna when 3.7 dBi is achieved in contrast to only 3.21 dBi for the conventional antenna. Moreover, the efficiency of the antenna with AMC is also improved up to 68.54%. Furthermore, the ability to shrink 52.23% of the size of the antenna without AMC making it very favorable to be applied in 5G bands.
Citra Pengungsi dan Masalah Sosial dalam film Capernaum Karya Nadine Labaki
Authors: Karamatullah Zahirah , Zulyeno Bastian
Published: March 2023

This research will discuss a film directed by Nadine Labaki, entitled Capernaum, because it managed to touch the emotions of the audience. This film received a standing ovation for fifteen minutes at the Cannes Film Festival in May 2018 in France. The film Capernaum is one of the films that has caught the attention of the writer because it depicts the reality of the lives of refugees in Lebanon which are packaged from the perspective of children. This study uses a descriptive-analysis method with an objective approach. In this research, the writer used Burhan Nurgiyantoro's fiction assessment theory. Starting from describing the intrinsic elements including the theme, setting, plot, characters, and morals. Intrinsic elements will be applied in analyzing the social criticism contained in the film Capernaum. The purpose of this research is to know the intrinsic elements and to analyze the social criticism contained in Capernaum's film. As a result, there is social criticism to be conveyed regarding the government, family and society in the film Capernaum.
Instituições Participativas em Tempos de Conflito e de Pandemia : o caso da XI Conferência Nacional dos Direitos da Criança e do Adolescente
Authors: Fonseca Igor Ferraz da
Published: March 2023

O artigo está voltado para Instituições participativas em tempos de conflito e de pandemia: o caso da XI Conferência Nacional dos Direitos da Criança e do Adolescente. O autor apresenta um relato sobre o processo de organização e realização daquela conferência, com ênfase nos graves conflitos vivenciados pelo Conselho Nacional dos Direitos da Criança e do Adolescente (Conanda) durante o período, e os desafios de adaptação à pandemia de covid-19. Com essas informações, é possível indicar, ao final, a existência de oportunidades e limitações decorrentes da utilização de ferramentas digitais (Fonseca, no prelo).
A V Conferência Nacional dos Direitos da Pessoa Idosa : conflitos e adaptações
Authors: Avelino Daniel Pitangueira de , Pompeu João Cláudio Basso
Published: March 2023

Esse processo conferencial foi extremamente afetado pelos conflitos entre o governo federal e o Conselho Nacional dos Direitos da Pessoa Idosa (CNDI), acirrados com a reformulação desse colegiado e destituição dos seus membros eleitos. O processo conferencial, concluído em 2021 com a adoção de várias medidas de adaptação ao contexto de pandemia, também foi objeto de críticas e controvérsias (Avelino e Pompeu, no prelo).
TD 2855 - Os Mega-acordos comerciais e suas redes de acordos prévios : análise comparativa com temas regulados pelos acordos prévios e pela OMC
Authors: Carvalho Marina Amaral Egydio de , Salles Marcus Maurer de
Published: March 2023

Este texto para discussão (TD) identifica quais são os acordos previamente celebrados pelos países-membros do Acordo Abrangente e Progressivo para Parceria Transpacífica (CPTPP, do inglês Comprehensive and Progressive Agreement for Trans-Pacific Partnership), da Parceria Econômica Regional Abrangente (RCEP, do inglês Regional Comprehensive Economic Partnership) e da Área de Livre Comércio Continental Africana (AfCFTA, do inglês African Continental Free Trade Area). Ademais, o trabalho compara as regras previstas nesses acordos prévios e nos mega-acordos, bem como relaciona quais destas são também reguladas pela Organização Mundial do Comércio (OMC) e, entre os temas já previstos, quais a OMC não regulou até o momento.
After Law, de Laurent de Sutter.
Authors: Mancilla-Órdenes Nathaly
Published: March 2023

Reseña del libro After Law, de Laurent de Sutter. Cambridge: Polity Books, 2020. 240 pp.
TÁC ĐỘNG CỦA CÁC BIỆN PHÁP PHI THUẾ QUAN ĐỐI VỚI XUẤT KHẨU THỦY SẢN VIỆT NAM
Authors: Phạm Hương Quỳnh , Nguyễn Thu Hằng
Published: March 2023

Bài viết nhằm phân tích thực trạng, quy định của các biện pháp phi thuế quan (NTM) và đánh giá tác động của một số NTM điển hình đến thủy sản xuất khẩu từ Việt Nam. Mô hình trọng lực và phương pháp giá trị tương đương (AVE) được sử dụng để phân tích. Kết quả cho thấy, các biện pháp kiểm dịch động thực vật và rào cản kỹ thuật đối với thương mại được áp dụng phổ biến nhất với quy định khắt khe nhất. Các biện pháp kiểm dịch động thực vật cản trở quyết định xuất khẩu của các doanh nghiệp và làm giảm kim ngạch xuất khẩu. Ngược lại, rào cản kỹ thuật đối với thương mại thúc đẩy quyết định xuất khẩu của doanh nghiệp và làm tăng kim ngạch. Kết quả đặt ra vấn đề cho doanh nghiệp và cơ quan Nhà nước cần phải chú trọng hơn đến tiêu chuẩn kỹ thuật và kiểm dịch động thực vật, an toàn vệ sinh.
TÁC ĐỘNG CỦA TRÁCH NHIỆM XÃ HỘI CỦA DOANH NGHIỆP ĐẾN LÒNG TRUNG THÀNH CỦA KHÁCH HÀNG: BẰNG CHỨNG THỰC NGHIỆM TẠI CÁC HÃNG HÀNG KHÔNG GIÁ RẺ Ở THÀNH PHỐ HỒ CHÍ MINH
Authors: Bùi Nhất Vương , Võ Thị Hiếu , Lê Khánh Nhật
Published: March 2023

Mục đích của nghiên cứu này là khám phá mối quan hệ giữa trách nhiệm xã hội của doanh nghiệp và lòng trung thành của khách hàng thông qua niềm tin thương hiệu và sự yêu thích thương hiệu. Mô hình nghiên cứu đã được đề xuất dựa vào lý thuyết bộ ba cốt lõi bền vững và lý thuyết trao đổi xã hội. Dữ liệu được thu thập từ 305 khách hàng trên 18 tuổi đã từng sử dụng dịch vụ của hãng hàng không giá rẻ (Vietjet Air và Pacific Airlines) và đang sống tại Thành phố Hồ Chí Minh. Mô hình hóa phương trình cấu trúc bình phương nhỏ nhất từng phần đã được sử dụng để phân tích dữ liệu. Kết quả nghiên cứu cho thấy trách nhiệm xã hội của doanh nghiệp giúp gia tăng lòng trung thành của khách hàng. Thêm vào đó, mối quan hệ tích cực này đã được trung gian bán phần bởi niềm tin thương hiệu và sự yêu thích thương hiệu. Cuối cùng, nghiên cứu đề xuất một số hàm ý quản trị cho các nhà quản lý tại các hãng hàng không giá rẻ thực hiện hoạt động trách nhiệm xã hội của doanh nghiệp để cải thiện lòng trung thành của khách hàng.
PHÂN TÍCH TÁC ĐỘNG CỦA HOẠT ĐỘNG LIVESTREAMING TRÊN MẠNG XÃ HỘI ĐẾN HÀNH VI MUA SẮM TRỰC TUYẾN CỦA GEN-Z
Authors: Lê Xuân Cù , Bùi Thị Ngát , Nguyễn Đình Quyền
Published: March 2023

Livestream trên mạng xã hội là một giải pháp thúc đẩy mua sắm trực tuyến hiệu quả hiện nay. Bài viết được thực hiện với mục tiêu phân tích các nhân tố tác động đến sự chấp nhận xem livestream trên mạng xã hội và vai trò của nó đối với hành vi mua sắm trực tuyến của thế hệ Z. Mô hình nghiên cứu được phát triển từ mô hình sử dụng và hài lòng (UGT) với 362 phiếu khảo sát được thu thập từ khách hàng trẻ tại Việt Nam bằng phương pháp mô hình cấu trúc tuyến tính (SEM). Kết quả đã khẳng định tính hữu dụng, nhận thức thời gian rỗi, tính giải trí, và tính tương tác xã hội ảnh hưởng thuận chiều dự định xem livestream của khách hàng trẻ. Đồng thời, tính dễ sử dụng đóng vai trò quan trọng của tăng cường tính hữu dụng dịch vụ livestream trên mạng xã hội. Hơn nữa, việc xem livestream này sẽ thúc đẩy hành vi mua sắm trực tuyến của thế hệ Z. Cuối cùng, bài viết rút ra một số hàm ý học thuật và hàm ý quản trị.
Resolved CO(1–0) Emission and Gas Properties in Luminous Dusty Star-forming Galaxies at z = 2–4
Authors: Stanley F. , Jones B. M. , Riechers D. A. , Yang C. , Berta S. , Cox P. , Bakx T. J. L. C. , Cooray A. , Dannerbauer H. , Dye S. , Hughes D. H. , Ivison R. J. , Jin S. , Lehnert M. , Neri R. , Omont A. , van der Werf P. , Weiss A.
Published: March 2023

We present the results of a survey of CO(1−0) emission in 14 infrared luminous dusty star-forming galaxies (DSFGs) at 2 < z < 4 with the NSF’s Karl G. Jansky Very Large Array. All sources are detected in 12CO(1−0), with an angular resolution of ∼1″. Seven sources show extended and complex structure. We measure CO luminosities of

(
μ
)

L

CO
(
1
−
0
)

′

=
0.4
–
2.9
×

10

11

K km s−1 pc2, and molecular gas masses of

(
μ
)

M

H

2

=
1.3
–
8.6
×

10

11

M
⊙, where (μ) is the magnification factor. The derived molecular gas depletion times of t
dep = 40–460 Myr, cover the expected range of both normal star-forming galaxies and starbursts. Compared to the higher −J CO transitions previously observed for the same sources, we find CO temperature brightness ratios of r
32/10 = 0.4–1.4, r
43/10 = 0.4–1.7, and r
54/10 = 0.3–1.3. We find a wide range of CO spectral line energy distributions (SLEDs), in agreement with other high-z DSFGs, with the exception of three sources that are most comparable to Cloverleaf and APM08279+5255. Based on radiative transfer modeling of the CO SLEDs we determine densities of

n

H

2

=
0.3
−
8.5
×

10

3

cm−3 and temperatures of T
K = 100–200 K. Lastly, four sources are detected in the continuum, three have radio emission consistent with their infrared-derived star formation rates, while HerBS-70E requires an additional synchrotron radiation component from an active galactic nucleus. Overall, we find that even though the sample is similarly luminous in the infrared, by tracing the CO(1−0) emission a diversity of galaxy and excitation properties are revealed, demonstrating the importance of CO(1−0) observations in combination to higher-J transitions.
A Candidate Location for Planet Nine from an Interstellar Meteoroid: The Messenger Hypothesis
Authors: Socas-Navarro Hector
Published: March 2023

The existence of a hypothetical Planet Nine lurking in the outer solar system has been invoked as a plausible explanation for the anomalous clustering in the orbits of trans-Neptunian objects. Here we propose that some meteoroids arriving at Earth could serve as messengers with the potential of revealing the presence of a hitherto undiscovered massive object. The peculiar meteor CNEOS 2014-01-08 recently put forward as the first interstellar meteor, might be one such messenger. The meteor radiant is in the maximum probability region calculated for the Planet Nine location in previous works. The odds of this coincidence being due to chance are ∼1%. Furthermore, some statistical anomalies about CNEOS 2014-01-08 are resolved under the hypothesis that it was flung at Earth by a gravitational encounter. Integrating its trajectory backwards in time would then lead to the region of the sky where Planet Nine is more likely to reside. Based on the available data, we propose the region at coordinates R.A. 53.°0 ± 4.°3, decl. 9.°2 ± 1.°3 as a plausible candidate location for Planet Nine.
Monotonicity of the Cores of Massive Stars
Authors: Takahashi Koh , Takiwaki Tomoya , Yoshida Takashi
Published: March 2023

Massive stars are linked to diverse astronomical processes and objects including star formation, supernovae and their remnants, cosmic rays, interstellar media, and galaxy evolution. Understanding their properties is of primary importance for modern astronomy, and finding simple rules that characterize them is especially useful. However, theoretical simulations have not yet realized such relations, instead finding that the late evolutionary phases are significantly affected by a complicated interplay between nuclear reactions, chemical mixing, and neutrino radiation, leading to nonmonotonic initial-mass dependencies of the iron core mass and the compactness parameter. We conduct a set of stellar evolution simulations, in which evolutions of He star models are followed until their central densities uniformly reach 1010 g cm−3, and analyze their final structures as well as their evolutionary properties, including the lifetime, surface radius change, and presumable fates after core collapse. Based on the homogeneous data set, we have found that monotonicity is inherent in the cores of massive stars. We show that not only the density, entropy, and chemical distributions, but also their lifetimes and explosion properties such as the proto-neutron-star mass and the explosion energy can be simultaneously ordered into a monotonic sequence. This monotonicity can be regarded as an empirical principle that characterizes the cores of massive stars.
Repeating Emission Episodes in Gamma-Ray Bursts: Millilensing or Jet Precession?
Authors: Gao He , Li An , Lei Wei-Hua , You Zhi-Qiang
Published: March 2023

Recently, some gamma-ray bursts (GRBs) whose light curves consist of repeating emission episodes with similar temporal profiles have attracted extensive attention. They are proposed to be candidates of millilensing events, although smoking gun evidence is lacking, since there are no redshift measurements and no angular offset detections for any of these candidates. Here we show that without invoking gravitational lensing, the repeating light-curve properties of these GRBs could also be interpreted under the jet precession model, as long as the detectable period in every precession circle is less than the precession period, and the precession period is close to the jet emission duration. By fitting the gamma-ray light curves of these GRBs, we suggest that the jet precession angle for these bursts should be relatively small (e.g., θ

p
< 5.°3), and the jet structure for these bursts are more likely Gaussian. The results suggest us to be careful when identifying millilensing GRBs. Multiband afterglow data and especially angular offset detections are essential to provide comprehensive justification for this identification.
Coplanar Circumbinary Planets Can Be Unstable to Large Tilt Oscillations in the Presence of an Inner Polar Planet
Authors: Childs Anna C. , Martin Rebecca G. , Lepp Stephen , Lubow Stephen H. , Geller Aaron M.
Published: March 2023

Mutually misaligned circumbinary planets may form in a warped or broken gas disk or from later planet–planet interactions. With numerical simulations and analytic estimates we explore the dynamics of two circumbinary planets with a large mutual inclination. A coplanar inner planet causes prograde apsidal precession of the binary and the stationary inclination for the outer planet is higher for larger outer planet orbital radius. In this case a coplanar outer planet always remains coplanar. On the other hand, a polar inner planet causes retrograde apsidal precession of the binary orbit and the stationary inclination is smaller for larger outer planet orbital radius. For a range of outer planet semimajor axes, an initially coplanar orbit is librating meaning that the outer planet undergoes large tilt oscillations. Circumbinary planets that are highly inclined to the binary are difficult to detect—it is unlikely for a planet to have an inclination below the transit detection limit in the presence of a polar inner planet. These results suggest that there could be a population of circumbinary planets that are undergoing large tilt oscillations.
Effects of invasive Rosa rugosa on Baltic coastal dune communities depend on dune age
Authors: Woch Marcin W. , Kapusta Paweł , Stanek Małgorzata , Możdżeń Katarzyna , Grześ Irena M. , Rożej-Pabijan Elżbieta , Stefanowicz Anna M.
Published: March 2023

Rosa rugosa Thunb. (Japanese Rose) is one of the most invasive species in Europe. It spreads spontaneously in coastal areas of western, central and northern Europe, posing a threat to dune habitats, including those indicated in the EU Habitats Directive as particularly valuable. R. rugosa has already been reported to displace native plants and alter soil properties. However, little is known about how these effects are mediated by the habitat context or the invader condition (health, ontogenetic stage). This study addressed that gap by examining vegetation and soil in 22 R. rugosa-invaded sites, half of which were in yellow dunes and the other half in grey dunes, i.e. two habitats representing the earlier and later stages of dune succession. The study was conducted on the Hel Peninsula (Poland’s Baltic coast). R. rugosa had a significant impact on dune vegetation, but the impact was strongly dependent on the habitat type. In the yellow dune sites, R. rugosa outcompeted most resident plant species, which translated into a strong decline in their total cover and richness. The invasion was almost not accompanied by changes in soil properties, suggesting that it affected the resident vegetation directly (through space takeover and shading). In the grey dunes, R. rugosa caused a shift in species composition, from that characteristic of open communities to that typical of forests. In this habitat, a significant increase in the soil organic layer thickness under R. rugosa was also observed, which means that both direct and indirect effects of the invasion on the vegetation should be assumed. Finally, a negative relationship was found between the total chlorophyll content in R. rugosa leaves and the parameters of resident plant communities, showing that the invasion effects can vary not only across habitats, but also with the condition of the invader. The results may have practical implications for managing R. rugosa invasions in coastal sand dune systems. Since R. rugosa accelerates grey dune succession, protecting this habitat may be more urgent and, at the same time, more complicated than protecting dunes at the earlier stages of development.
The role of livestock grazing in long-term vegetation changes in coastal dunes: a case study from the Netherlands
Authors: van der Hagen Harrie G.J.M. , Lammers Erik , van der Meulen Frank , Pätsch Ricarda , van Rooijen Nils M. , Sýkora Karlè V. , Schaminée Joop H.J.
Published: March 2023

The vegetation of coastal sand dunes is characterized by high species diversity and comprises some of the rarest vegetation types in North-Western Europe. Among them are dune grassland communities whose species richness relies on grazing. Those communities are assessed as a priority habitat type under the Natura 2000 legislation. In autumn 1990, Galloway cows and Nordic Fjord horses were introduced in the coastal dunes of Meijendel near The Hague (52°7'N, 4°20'E), The Netherlands, to reduce encroachment of tall grasses and shrubs, to develop bare sand patches, and as such facilitating diverse vegetation structures in the dune grasslands. In the 1950s, decades before the introduction of livestock, 41 permanent plots were installed. On average, they were examined every four years. Our study hypothesised that the livestock grazing in the set densities would halt progressive succession and facilitate regressive succession. Up to 1990, we observed an equilibrium between progressive and regressive succession. After 1990, however, our data showed a pronounced progressive succession contradicting the hypothesized effect of the livestock grazing. We relate the main observed patterns with two factors linked to rabbit populations: (i) the myxomatosis outbreak in 1954 and (ii) the rabbit Viral Haemorrhagic Disease (rVHD-1) outbreak in 1989. In addition to livestock grazing, rabbits block progressive succession by feeding on seedlings of shrub and tree species and digging burrows, creating small-scale mosaics of bare sand and initiate blowout development when collapsing. We state that the substantial decrease in rabbit numbers due to the viral diseases likely caused the observed increase of shrubs and trees in the study area's permanent plots. Climate change might have contributed to the observed increase in autonomous blowout development since 2001, as well as a decrease in atmospheric nitrogen deposition since 1990, after a strong increase the decades before.