bluuebunny/crossref_metadata_2025 huggingface dataset:
Crystal Clamping in (Ba, Sr)TiO3 Borosilicate Glass Ceramics
Authors: Yadav Avadhesh Kumar , Gautam C.R.
Published: April 2022

Background:

Perovskite glass-ceramics have attracted the attention of researchers and
scientists due to their wide range of applications in energy storage devices, solar cells, photovoltaic
cells, etc. Barium titanate is the first discovered perovskite glass-ceramics. After the discovery of
barium titanate, several perovskite glass-ceramics have been discovered. Several substitutions have
also been attempted for the progress of perovskites. Barium strontium titanate is one of the perovskite
glass-ceramics in which few barium ions are replaced by strontium ions. The crystal clamping
is also found in a few perovskite glass-ceramics, e.g., PbTiO3.

Aims:

In the present investigation, our focus is on the synthesis and crystallization behavior of barium
strontium titanate borosilicate glass-ceramics in glass system 64[(Ba1-xSrx).TiO3]-
30[2SiO2.B2O3]-5[K2O]-1[La2O3] (0.0 ≤ x ≤ 1.0).

Methods:

Synthesized glasses were characterized by differential thermal analysis, X-ray diffraction,
and scanning electron microscopy.

Results:

The crystallization behavior showed the formation of major crystalline phase of BaTiO3/
BaSrTiO3/ Ba1.91Sr0.09TiO4/ SrTiO3 along with some pyrochlore phase of Ba2TiSi2O8/ Sr2TiSi2O8/
Ba2Ti2B2O9/ Sr2B2O5. The crystalline phase formation depends upon both composition and the crystallization
process. The crystal clamping was attributed to synthesizing glass-ceramics samples during
the crystallization.

Conclusion:

Bulk barium strontium titanate glass-ceramics were successfully prepared by the melt
quench method. X-ray diffraction studies confirmed the formation of the major perovskite phase.
During the crystallization of glasses, crystal clamping is attributed to the barium strontium titanate
glass-ceramics.
WITHDRAWN: On the Application of Generalized Linear Mixed Models for Predicting Path Loss in LTE Networks
Authors: Cohen Achraf , Alqudah Yazan A.
Published: April 2022

The article has been withdrawn at the request of the author of the journal International Journal of Sensors,
Wireless Communications and Control.

Bentham Science apologizes to the readers of the journal for any inconvenience this may have caused.

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Does Exposure to Sexualized Media Lead to Boys’ Objectification
of Girls and Women?: A Preregistered, Longitudinal Reanalysis
of Rousseau et al. (2019)
Authors: Ferguson Christopher J.
Published: April 2022

Background:

The issue of whether fictional media can socialize male
attitudes toward women remains hotly contested. One recent longitudinal study
concluded that exposure to sexualized TV was associated with viewing women as
sex objects as well as the objectification of women. However, it was unclear
whether these findings were robust.

Methods:

Original data was obtained. In a preregistered regression design, the
association between sexualized television and music videos was longitudinally
examined with male sexual dominance, viewing women as sex objects and
objectification, controlling for T1 outcome scores and other control variables. The
sample included 487 adolescent males from Belgium.

Results:

No longitudinal association was found between sexualized media variables
and any of the outcome variables with proper controls in place.

Conclusions:

Longitudinal analyses do not support long-term associations between
sexualized media and adolescent male objectification of women.
OVERVIEW OF GLOMERULAR HYPERTROPHY AND HYDROPIC DEGENERATION OF DIABETIC RAT KIDNEY MODELS IN GIVING TOMAN FISH
Authors: Nindia Carabelly Amy , Sinaga Udur , Dewi Nurdiana
Published: April 2022

Background: Traditional medicine is increasingly favored by the community as an effort to maintain and treat health because it has low side effects and is easy to obtain. Low side effects in administering traditional medicines if the dosage is right, so it is necessary to do an acute toxicity test. One of the consumers of traditional medicine is diabetes mellitus (DM) sufferer. DM can cause delay wound healing. Toman fish is proven to accelerate wound healing. DM sufferers need special attention to their kidneys because in addition to the toxic effects caused by improper doses of traditional medicine, the kidneys can also experience diabetic nephropathy. Objectives: To analyze changes in glomerular hypertrophy and hydropic degeneration in the administration of 16 mL / KgBW Toman fish extract orally for 14 days in diabetic wistar rat kidneys. Methods: This study was a true experimental design with a post test only with control group design. The study was divided into a treatment group of toman fish extract at a dose of 16 mL / Kg BW orally for 14 days in diabetic rat kidney models and a control group in the form of feeding only. Results: The administration of toman fish extract in DM rat showed changes in the glomerular hypertrophy picture of 25-50% and decreased glomerular hypertrophy score which was significantly different from the control group. There was no feature of hydropic degeneration in either group. Conclusions: Giving toman fish extract to DM rat can reduce glomerular hypertrophy and does not cause hydropic degeneration
PERAN KASEIN SUSU KAMBING PERANAKAN ETAWA TERHADAP PENINGKATAN KEKERASAN ENAMEL GIGI SULUNG
Authors: Sutanti Viranda , Manzila Nilta , El Milla Lalita , Hartami Edina
Published: April 2022

Latar Belakang: Demineralisasi merupakan suatu proses hilangnya mineral pada gigi. Proses demineralisasi tersebut mengakibatkan penurunan kekerasan enamel gigi sehingga dapat mengakibatkan terjadinya karies gigi. Susu kambing Peranakan Etawa terdiri dari kasein yang mengandung peptida bioaktif yang diyakini dapat meningkatkan kandungan mineral pada gigi dengan cara melepaskan ion kalsium dan fosfat. Tujuan: Mengetahui efektivitas kasein susu kambing PE dalam sediaan gel dalam meningkatkan kekerasan enamel gigi sulung secara In Vitro. Metode: Desain penelitian ini adalah true experimental pretest-postest control group design. Metode yang dilakukan adalah mengoles setiap permukaan fasial sampel gigi sulung dengan menggunakan bahan uji selama 3 menit, lalu sampel gigi sulung direndam menggunakan saliva buatan dalam inkubator selama 24 jam pada suhu 37Â°C selama 15 hari. Pengujian kekerasan enamel gigi sulung dilakukan menggunakan Micro Vickers Hardness Test. Hasil: Peningkatan nilai kekerasan enamel didapatkan sesudah perlakuan dengan nilai signifikansi 0,013 (p<0,05) pada uji One Way Anova. Semakin tinggi konsentrasi gel kasein susu kambing PE menunjukkan semakin tinggi nilai kekerasan enamel gigi sulung. Kesimpulan: Gel Kasein Susu Kambing PE terbukti efektif terhadap peningkatan kekerasan enamel gigi sulung.
PREVALENSI IMPAKSI MOLAR KE TIGA RAHANG BAWAH DI RUMAH SAKIT PENDIDIKAN UNIVERSITAS BRAWIJAYA TAHUN 2018
Authors: Septina Farihah , Atika Apriliani Wildana , Baga Irwan
Published: April 2022

Gigi impaksi merupakan gigi yang gagal erupsi secara utuh pada posisi yang seharusnya disebabkan karena kurangnya ruang pada lengkung rahang atau terhalang oleh gigi di dekatnya atau terhalang oleh jaringan patologis. Molar ketiga merupakan gigi paling terakhir erupsi serta gigi yang lebih sering mengalami impaksi dibandingkan dengan gigi yang lain karena seringkali tidak cukup ruangan yang tersedia untuk erupsi. Pemeriksaan radiografi pada impaksi gigi molar ketiga rahang bawah, dapat membantu dokter gigi dalam menentukan lokasi dan bentuk gigi, menentukan teknik pencabutan yang akan digunakan dan menentukan struktur anatomis yang harus dihindari saat tindakan. Selain itu, dokter gigi dapat mengevaluasi posisi dan jenis impaksi dari radiograf. Tujuan: Untuk mengetahui jumlah impaksi molar ketiga rahang bawah berdasarkan pengamatan pada radiograf panoramik pasien yang dirawat di Rumah Sakit Pendidikan Universitas Brawijaya tahun 2018 sesuai klasifikasinya. Metode Penelitian: Penelitian observasional dengan menggunakan data sekunder berupa radiograf panoramik pasien yang kemudian di klasifikasikan menurut klasifikasi impaksi Pell & Gregory dan George Winter. Hasil: Jumlah sampel radiograf panoramik yang dikumpulkan sebanyak 160 radiograf, dimana 97 pasien mengalami impaksi dan 63 tidak mengalami impaksi dan perempuan lebih banyak mengalami impaksi dibandingkan laki-laki. Kesimpulan: PrevalensiÂ impaksi molar ketiga rahang bawah di Rumah Sakit Pendidikan Universitas Brawijaya tahun 2018 adalah sebesar 60,6%. Klasifikasi impaksi Pell dan Gregory yang paling banyak adalah Kelas II dan Posisi A. Klasifikasi impaksi George Winter yang paling banyak adalah horizontal.
PERBEDAAN DERAJAT KEASAMAN (pH) SALIVA PADA PEROKOK ELEKTRIK DAN NON-PEROKOK
Authors: Uli Silalahi Uli Silalahi Yuni , Hamdillah Skripsa Tira , Suharto Suharto , Bagus Prabowo Yoghi
Published: April 2022

Latar Belakang: Saliva merupakan suatu cairan di dalam tubuh manusia yang memiliki fungsi yang penting terhadap kesehatan rongga mulut yang dapat terpapar langsung rokok elektrik. Nikotin yang terdapat pada e-liquid rokok elektrik dapat menurunkan sekresi saliva. Adanya penurunan sekresi saliva tersebut dapat mengakibatkan pH saliva menurun dapat mengakibatkan terjadinya karies pada gigi, periodontitis, infeksi mulut, dll. Tujuan: Mengetahui perbedaan pH saliva pada perokok elektrik dan non-perokok. Metode: Metode yang digunakan dalam penelitian ini adalah penelitian analitik observasional dengan rancangan penelitian cross-sectional. Sebanyak 60 orang subjek penelitian dibagi menjadi 30 orang perokok elektrik dan 30 orang non-perokok. Subjek penelitian diwajibkan untuk mengisi informed consent sebelum mengisi kuesioner yang ditentukan. Saliva setiap subjek dikumpulkan di tabung sampel sebanyak Â± 15 ml dalam keadaan istirahat. pH saliva kemudian diukur menggunakan alat pH meter. Hasil: Berdasarkan analisis menggunakan uji t tidak berpasangan diketahui bahwa perokok elektrik dan non-perokok memiliki perbedaan yang signifikan (p < 0,05) dengan rerata pH saliva pada perokok elektrik 6,98 Â± 0,24 dan rerata pH saliva non-perokok 7,37 Â± 0,27. Simpulan: pH saliva yang antara perokok elektrik dan non-perokok memiliki perbedaan yang signifikan. Perokok elektrik mempunyai pH saliva yang bernilai lebih rendah daripada non-perokok.
APLIKASI TOPIKAL NANOTRANSFERSOM EKSTRAK KULIT JERUK NIPIS (Citrus aurantifolia Swingle) TERHADAP MAKROFAG PADA PROSES PENYEMBUHAN LUKA MUKOSA TIKUS WISTAR
Authors: Prasetyaningrum Nenny , Fitria Adiningdyah Ayu
Published: April 2022

Latar belakang: Tanaman herbal telah banyak digunakan masyarakat sebagai obat untuk menyembuhkan luka dengan efek samping yang minimal. Salah satu tanaman yang memiliki banyak manfaat, yaitu kulit jeruk nipis (Citrus aurantifolia Swingle) yang diketahui memiliki kadar flavonoid tinggi, sehingga dapat mempercepat proses penyembuhan luka dari ulkus. Pada fase penyembuhan luka, makrofag mempunyai peran utama sebagai fagosit dan sekresi growth factor. Untuk memaksimalkan efektivitas penghantaran obat, ekstrak kulit jeruk nipis dibentuk dalam sediaan nanoTransfersom sistem. Tujuan: untuk mengetahui pengaruh pemberian nanotransfersom ekstrak kulit jeruk nipis (Citrus aurantifolia Swingle) terhadap jumlah makrofag pada penyembuhan luka mukosa labial tikus. Metode: Penelitian ini menggunakan true experimental in vivo dengan induksi termal mukosa labial tikus Wistar, terbagi 4 kelompok dengan time series hari ke-3 dan 7, yaitu kontrol negatif [K(-)], kontrol positif diberi triamcinolone acetonida 0,1% [(K(+)3], perlakuan yang diberi ekstrak kulit jeruk nipis (PA), dan diberi nanoTransfersom ekstrak kulit jeruk nipis (PB). Jumlah makrofag diamati menggunakan mikroskop perbesaran 400x. Hasil: Analisa data menggunakan uji One Way Anova menunjukkan terdapat perbedaan yang signifikan (p<0.05) pada jumlah makrofag antar kelompok pada hari ke-3 dan ke-7. Kesimpulan: NanoTransfersom ekstrak kulit jeruk nipis (Citrus aurantifolia Swingle) berpengaruh terhadap jumlah makrofag pada penyembuhan luka mukosa labial tikus wistar.
KEKUATAN TEKAN MODEL GIGI BERBAHAN DASAR SELF-CURED ACRYLIC SEBAGAI MEDIA PEMBELAJARAN KETERAMPILAN KLINIS PROSTODONSIA
Authors: Fatima Fatima , Insany Irgananda Citra , Andari Wulan Kartika , Audinarti Tabatya Farida
Published: April 2022

Latar Belakang : Model gigi merupakan media yang digunakan untuk melatih keterampilan klinik mahasiswa kedokteran gigi dalam melakukan preparasi gigi penyangga dari gigi tiruan cekat pada saat pre-klinik. Kekuatan tekan merupakan salah satu sifat mekanik yang perlu diperhatikan dari model gigi tersebut. Tujuan: Untuk mengetahui nilai kekuatan tekan model gigi berbahan self-cured acrylic dengan buatan pabrik dan enamel gigi, sebagai media pembelajaran ketrampilan klinis prostodonsia. Metode : Penelitian ini menggunakan pendekatan cross- sectional study dengan rancangan penelitian observasional analitik, yang melibatkan 3 kelompok sampel yaitu model gigi berbahan self-cured acrylic , model gigi buatan pabrik dan elemen gigi 44. Kekuatan tekan sampel diuji dengan Micro Load System Universal Testing Machine. Hasil : Hasil penelitian menunjukkan nilai kekuatan tekan enamel gigi adalah 486,6 Mpa, model gigi buatan pabrik 485,9 Mpa dan model gigi berbahan self-cured acrylic 482,84 Mpa. Hasil statistik menggunakan oneway anova yaitu p = 0,476 dimana p > 0,05 yang menunjukkan tidak terdapat perbedaan signifikan pada kekuatan tekan antara 3 kelompok sampel. Kesimpulan: Model gigi berbahan self-cured acrylic memiliki daya saing terhadap model gigi buatan pabrik & berpeluang dikembangkan sebagai media pembelajaran keterampilan klinis prostodonsia.
EFEK TOOTHGRAFT TERHADAP JUMLAH OSTEOBLAS SOKET TIKUS PASCA PENCABUTAN
Authors: Chandra Kumala Ega , Mardiyantoro Fredy , Mei Sarnia Wahyu Salaras Pinti
Published: April 2022

Latar Belakang: Bovine graft sebagai bahan pengganti tulang terkadang menimbulkan reaksi penolakan dari tubuh. Bahan tooth graft dari gigi yang diekstraksi memiliki kemiripan subtansi dengan tulang. Tujuan: Menganalisis efek implantasi tooth graft terhadap osteoblas dibandingkan dengan bovine graft pada soket alveolar tikus Wistar pasca pencabutan. Metode: Desain penelitian ini Â adalah eksperimental laboratoris menggunakan 24 sampel yang dibagi menjadi 4 kelompok. Keempat kelompok dilakukan pencabutan gigi insisif pertama mandibula, pada 2 kelompok diaplikasikan tooth graft dan 2 kelompok diaplikasikan bovine graft selama 14 hari dan 30 hari. Jumlah sel osteoblas dihitung secara manual. Hasil: analisis data dengan uji statistik T test menunjukkan nilai yang tidak signifikan (p< 0,05) pada jumlah sel osteoblas pasca aplikasi tooth graft dan bovine graft pada hari ke-14 dan hari ke-30. Kesimpulan: Bahan tooth graftÂ Â dapat mempengaruhi jumlah sel osteoblas sama baiknya dengan bovine graft untuk perawatan pada tikus wistar pasca ekstraksi gigi.
PERAWATAN BEDAH ENDODONTIK APIKOEKTOMI KISTA RADIKULER GIGI SENTRAL INSISIVUS PASCA RETREATMENT: LAPORAN KASUS
Authors: Alamsyah Djaynurdin Novia , Nidyasari Ferdina , Hadriyanto Wignyo , Tri Endra Untara Raphael
Published: April 2022

Latar Belakang: Proses inflamasi periapikal terus berlangsung dan akan menstilmulasi sisa epitel malassez yang ada di ligamen periodontal. Sebagai pertahanan pertama, pulpa akan membentuk granuloma, dimana granuloma akan menjadi kista radikuler ketika gigi tidak segera dirawat. Tujuan dari laporan kasus ini adalah untuk mengevaluasi perawatan lesi periapikal gigi dalam bentuk kista. Kasus: Seorang wanita usia 25 tahun datang ke klinik konservasi gigi Universitas Gadjah Mada dengan keluhan utama gigi depan bawah terkadang terasa sakit. Gigi tersebut telah dilakukan perawatan saluran akar. panatalaksanaan kasus ini dengan pendekatan non bedah, dan dilanjutkan pendekatan non bedah setelah dievaluasi. Penatalaksanaan: Bedah periradikuler dilakukan setelah retreatment dari gigi tidak menunjukan hasil penyembuhan di jaringan periodontal. Lesi periapikal kemudian dievaluasi dengan Cone Beam Computed Tomography (CBCT) kemudian dilakukan apikoektomi dan kuretase. Sebanyak 3mm dari apeks direseksi dan dilakukan dibawah anastesi lokal. Jaringan patoloigis kemudian dikirim ke departemen patologi setelah dikuretase. Bahan bonegraft dan apical seal dengan MTA diberikan dan diikuti penutupan flap. Evaluasi postoperatif dilakukan setelah satu minggu, tiga minggu, dan tujuh minggu. Gambaran radiograf menunjukan lesi periapikal mengecil dan pasien tidak ada keluhan. Kesimpulan: Bedah periradikuler dilakukan setelah retreatment endodotik konvensional tidak berhasil.
APIKOEKTOMI GIGI INSISIVUS KANAN DISERTAI KISTA RADIKULER: LAPORAN KASUS
Authors: Agustin Yuniari , Arifati Azizah , Indrapradana Adyaputra , Hadriyanto Wignyo , Nari Ratih Diatri
Published: April 2022

LATAR BELAKANG: Proses inflamasi periapikal yang berlanjut dapat merangsang sisa epitel malassez di ligamentum periodontal. Granuloma dapat terbentuk sebagai pertahanan pertama terhadap nekrosis pulpa yang selanjutnya dapat menjadi abses periapikal. Kista radikuler dapat terjadi jika kondisi sebelumnya tidak segera ditangani. TUJUAN: Studi kasus ini bertujuan untuk mengevaluasi apikoektomi yang diikuti dengan enukleasi kista radikuler. KASUS: Seorang pria berusia 24 tahun datang dengan rujukan ke Klinik Bagian Konservasi Gigi Universitas Gadjah Mada untuk memeriksakan giginya dan melanjutkan perawatan saluran akar gigi. Keluhan utama adalah perubahan warna gigi dan seringkali muncul benjolan besar pada gusi gigi dengan riwayat trauma (kecelakaan) kurang lebih 12 tahun yang lalu yang tidak segera dilakukan untuk diperiksa dan dirawat. MANAJEMEN: Enukleasi kista yang terlihat pada foto rontgen dan CBCT dilakukan setelah perawatan saluran akar selesai. Kapsul dan kuretase jaringan granulasi kista dikirim ke bagian patologi anatomi. Apikoektomi dilakukan sekitar 3 mm dari apeks dilanjutkan dengan preparasi kavitas, pengisian retrograde menggunakan mineral trioxide aggregate dan aplikasi bone graft. Evaluasi dilakukan satu minggu pasca operasi dan dilanjutkan pembuatan restorasi akhir berupa pasak dowel dan mahkota zirkonia. KESIMPULAN: Apikoektomi diikuti dengan enukleasi kista radikuler yang dilakukan setelah perawatan saluran akar menunjukkan keberhasilan dalam proses penyembuhan yang ditandai dengan pengurangan lesi periapikal pada foto rontgen.
Blood-parasites (Haemosporida) of wild birds captured at different land uses within a tropical seasonal dry forest matrix
Authors: González-Olvera Merit , Hernández-Colina Arturo , Santiago-Alarcon Diego , Osorio-Beristain Marcela , Martínez-Maya José Juan
Published: April 2022

Avian haemosporidians form a diverse group of vector-borne parasites that can cause detrimental effects on their hosts and threaten the conservation of susceptible species. We explored the prevalence and parasitemia of haemosporidians infecting wild birds from Sierra de Huautla Biosphere Reserve in Morelos, southern Mexico. Birds were caught using mist nets in three habitat conditions (conserved, disturbed, and agricultural) and during two seasons (rainy and dry). Thin blood smears were prepared from blood samples for microscopic analysis. We captured 142 birds belonging to 17 species. We identified Haemoproteus spp., Plasmodium spp., and microfilaria. Prevalence was similar among land-use types (conserved (26.3%), disturbed (36.4%) and agricultural (29.9%)), and between seasons (rainy (29.7%) and dry (29.3%)), but varied per parasite genus and group (Haemoproteus spp. (28.2%), Plasmodium spp. (2.1%), coinfections (5.6%), and microfilaria (4.9%)). Parasitemia was low in most birds (< 0.1% erythrocytes infected), and only one, with an unhealthy appearance, presented high parasitemia (> 0.5%). We reported for the first time 12 species of birds infected with haemosporidian parasites and 16 new host-parasite associations in total. This is the first study of blood parasites in this region and provides fundamental information for future research.
MOTIVATIONAL FACTORS IN INFLUENCING THE INTERNATIONAL TOURISTS TRAVEL TO TOURISM ATTRACTIONS IN PENANG
Authors: Ab Dulhamid Hasnizam , Isa Mohd Ismail , Mohamed Badaruddin , Sazali Muhamad Ferdhaus
Published: April 2022

The generation of international travellers is no longer considered a barrier to tourists to visit places of interest during leisure time. Travelling is about learning, knowledge, and thinking channels. However, most tourists will not travel long distances efficiently, contributing to the lack of interest in international tourist visits. This study aims to identify the motivational factors driving international tourists to travel to Penang based on travel motivation, characteristics, and sociodemographic. The three objectives prompted the investigation. First, to identify the demographic characteristics of international tourists to Penang. Second, to explain the motivation to want to 'seek knowledge and innovation' is the main thrust that drives travel generation. Third, to determine the motivation of the main attractions that can attract international tourists. A set of questionnaires was used to obtain the quantitative data. The questionnaire was distributed and a total of 370 international were in the tourist attractions around Penang. The data was obtained as analysed using the SPSS software. The study results explained that these international tourists consist of young people aged between 21-20 years. Next, there is a significant relationship between sociodemographic and tourist travel characteristics. The main push factor, 'desire to seek knowledge and innovation,' is the motivational factor that brings tourists to Penang, and the main attraction factor is the 'cultural and historical' factor that is possessed in each state.
CELLULAR AUTOMATA FOR CIREBON CITY LAND COVER AND DEVELOPMENT PREDICTION
Authors: Agustina Ina Helena , Risang Aji Riswandha , Fardani Irland , Rochman Gina Puspitasari , Ekasari Astri Mutia , Jauzi Mohmed Fhanji Alain
Published: April 2022

Land changes in urban areas are a common thing. Along with the increase in economic activity, the population also increased and resulted in changes in land use. This results in uncomfortable, unsafe and inefficient urban conditions. This problem can be anticipated by predicting changes in land cover, from the result of prediction of landcover, the direction of urban growth will be known. The purpose of this research is to analyse and modelling land use changes and to predict the urban growth. One methodology for modelling land cover is to use the Cellular Automata model. Using land cover data from Landsat Satellite Imagery in 1999 and 2009, it can predict that land cover in 2019 until 2031, after calculating the validity value using a kappa accuracy test of 0.79. Results of the model are that development of the city of Cirebon leads to the southern part of the District of Harjamukti. It happens because, in the area of Harjamukti District, there is a lot of lands that can convert into developed land.
THE IMPACT OF MONETARY POLICY ON HOUSING AFFORDABILITY IN MALAYSIA
Authors: Nasir Zarul Azhar , Mohd Yusof Rosylin , Mazlan Ahmad Rizal
Published: April 2022

Housing affordability is a global concern, especially among researchers and policymakers around the world in both developed and developing countries. In Malaysia, it has been a decade since the median multiple house price reaching more than a tripled median household income threshold in term of housing affordability. This indicates that housing in Malaysia is seriously unaffordable. In general, this study was conducted to examine the impact of monetary policy on housing affordability in Malaysia. This study focuses on investigating both short and long-run relationships between money supply and interest rate on housing affordability. To achieve this goal, Autoregressive Distributed Lag (ARDL) estimation techniques were employed on a quarterly data from the first quarter of 2008 until the first quarter of 2021. The findings showed the existence of long-run cointegration between all indicators except for the interest rate. In addition, money supply, interest rate, and employment were found to be significant in the short run. In the matter of policy implication, it is best for policymakers to focus on regulating money supply rather than controlling interest rate in promoting housing affordability.
THE DEVELOPMENT OF SMART CITIES AND ENVIRONMENT-RELATED DOMAIN: A CASE STUDY IN INDONESIA AND FRANCE
Authors: Afriani Lusmeilia , Wahyudin Yasser , Perdana Ryzal
Published: April 2022

In Indonesia, and so is France, there is a growing concern about smart city development. However, empirical evidence is still lacking in Indonesia and so is the comparison between cities in Indonesia and France. Therefore, this paper is to elucidate the smart city development in Indonesia and France in terms of the environment-related domain. This current study is qualitative in nature, focusing on two cities, Lyon in France and Bandar Lampung in Indonesia. The data collection was carried out using two types of instruments. First, we collected data to measure indicators of the environment-related domain of smart cities through interviews with government officials who were in charge of city development. Second, the data collection also involved a five-point Likert scale survey. The findings indicate that the smart city development in Lyon in terms of the environment-related domain is more developed compared to Bandar Lampung. Lyon has enlisted additional private sector support for the concept of smart city development, while everything necessary for the development of a smart city is now being prepared in Bandar Lampung. The recommendations from the findings and suggestions for further research are also discussed.
Estrategias para la optimización de la gestión administrativa en una empresa constructora usando el Balanced Scorecard
Authors: Noboa Salazar José Gregorio , Vergara-Romero Arnaldo , Zamora Boza Clarisa Solange , Navarrete Granizo Andrés Washington
Published: April 2022

La presente investigación, se desarrolla en una empresa anónima del sector de construcción, dedicada a la comercialización y fabricación de aceros. Se tiene como objetivo usar el Balanced Scorecard para medir el desempeño y los procesos, con el fin de optimizar el rendimiento de las actividades. El método que se aplica es de tipo descriptivo y exploratorio, se emplea la metodología cualitativa y cuantitativa, junto con el planteamiento del problema, se analiza y se identifica las causas que se pretende abordar, dando como justificación el uso de la herramienta.  El marco teórico abarca los temas desde los antecedentes de la gestión administrativa, hasta el Balanced Scorecard. Es decir, se desglosa totalmente el tema de esta investigación hacia los componentes más básicos.  Se detectó que la empresa en cada perspectiva presenta dificultades críticas, siendo la mayor magnitud la perspectiva de aprendizaje, con lo cual se detecta que la empresa carece una adecuada gestión de formación, crecimiento y compensación a colaboradores. Se propone una serie de estrategias relacionadas con las perspectivas: financieras, del cliente, de procesos y aprendizaje, con la finalidad de generar un impacto positivo en la gestión administrativa.  Investigaciones similares son de interés, ya que permiten proponer oportunidades de mejora en la gestión administrativa, para el cumplimiento de objetivos empresariales, mediante la implementación de una metodología de gestión estratégica.
Electrochemical Impedance Spectroscopic Studies of PHEV2 form-factor Lithium-ion Cells for Automotive Applications
Authors:   LetterBox 1581, Volkswagen AG, Berliner Ring 2, D-38436 Wolfsburg, Germany, Calles Simon , Heitjans Paul ,   Institute of Physical and Electrochemistry, Leibniz University Hanover, Callinstr. 3a, D-30167 Hannover, Germany, Börger Alexander ,   LetterBox 1723, Volkswagen AG, Berliner Ring 2, D-38436 Wolfsburg, Germany
Published: April 2022

Prismatic PHEV2 form-factor lithium-ion cells with a nominal capacity of 25 Ah (as used for automotive applications) have been studied with electrochemical impedance spectroscopy (EIS). The data was evaluated using electrical equivalent circuits. Mathematical modeling, system identification, and the determination of model parameters of the lithium-ion cell were also carried out. While a study of the influence of temperature and state-of-charge (SOC) performed using pristine lithium-ion cells showed a nonlinear relationship between temperature and the fits for different RC elements. Finally, the interdependency of parameters determined by EIS has been demonstrated for cells in different aging regimes (cyclic vs. non-cyclic aging) relevant for automotive requirements use cases.
Quantitative User Data From a Chatbot Developed for Women With Gestational Diabetes Mellitus: Observational Study
Authors: Sagstad Mari Haaland , Morken Nils-Halvdan , Lund Agnethe , Dingsør Linn Jannike , Nilsen Anne Britt Vika , Sorbye Linn Marie
Published: April 2022

Background

The rising prevalence of gestational diabetes mellitus (GDM) calls for the use of innovative methods to inform and empower these pregnant women. An information chatbot, Dina, was developed for women with GDM and is Norway’s first health chatbot, integrated into the national digital health platform.

Objective

The aim of this study is to investigate what kind of information users seek in a health chatbot providing support on GDM. Furthermore, we sought to explore when and how the chatbot is used by time of day and the number of questions in each dialogue and to categorize the questions the chatbot was unable to answer (fallback). The overall goal is to explore quantitative user data in the chatbot’s log, thereby contributing to further development of the chatbot.

Methods

An observational study was designed. We used quantitative anonymous data (dialogues) from the chatbot’s log and platform during an 8-week period in 2018 and a 12-week period in 2019 and 2020. Dialogues between the user and the chatbot were the unit of analysis. Questions from the users were categorized by theme. The time of day the dialogue occurred and the number of questions in each dialogue were registered, and questions resulting in a fallback message were identified. Results are presented using descriptive statistics.

Results

We identified 610 dialogues with a total of 2838 questions during the 20 weeks of data collection. Questions regarding blood glucose, GDM, diet, and physical activity represented 58.81% (1669/2838) of all questions. In total, 58.0% (354/610) of dialogues occurred during daytime (8 AM to 3:59 PM), Monday through Friday. Most dialogues were short, containing 1-3 questions (340/610, 55.7%), and there was a decrease in dialogues containing 4-6 questions in the second period (P=.013). The chatbot was able to answer 88.51% (2512/2838) of all posed questions. The mean number of dialogues per week was 36 in the first period and 26.83 in the second period.

Conclusions

Frequently asked questions seem to mirror the cornerstones of GDM treatment and may indicate that the chatbot is used to quickly access information already provided for them by the health care service but providing a low-threshold way to access that information. Our results underline the need to actively promote and integrate the chatbot into antenatal care as well as the importance of continuous content improvement in order to provide relevant information.
Media Use During the COVID-19 Pandemic: Cross-sectional Study
Authors: Rivest-Beauregard Marjolaine , Fortin Justine , Guo Connie , Cipolletta Sabrina , Sapkota Ram P , Lonergan Michelle , Brunet Alain
Published: April 2022

Background

Throughout the pandemic, the general population was encouraged to use media to be kept informed about sanitary measures while staying connected with others to obtain social support. However, due to mixed findings in the literature, it is not clear whether media use in such a context would be pathogenic or salutogenic.

Objective

Therefore, the associations between COVID-19–related stressors and frequency of media use for information-seeking on trauma- and stressor-related (TSR) symptoms were examined while also investigating how social media use for support-seeking and peritraumatic distress interact with those variables.

Methods

A path model was tested in a sample of 5913 adults who completed an online survey.

Results

The number of COVID-19–related stressors (β=.25; P<.001) and extent of information-seeking through media (β=.24; P=.006) were significantly associated with the severity of TSR symptoms in bivariate comparisons. Associations between levels of peritraumatic distress and both COVID-19–related stressors and information-seeking through media, and social media use for support- and information-seeking through media were found (βCOVID-19 stressors: Peritraumatic Distress Inventory=.49, P<.001; βseeking information: Peritraumatic Distress Inventory=.70, P<.001; βseeking information–seeking support=.04, P<.001).

Conclusions

Results suggest that exposure to COVID-19–related stressors and seeking COVID-19–related information through the media are associated with higher levels of peritraumatic distress that, in turn, lead to higher levels of TSR symptoms. Although exposure to the stress of the COVID-19 pandemic may be unavoidable, the frequency of COVID-19–related information consumption through various media should be approached with caution.
Antecedent factors of information security behavior in health care providers: a systematic review (Preprint)
Authors: Sari Puspita Kencana , Handayani Putu Wuri , Hidayanto Achmad Nizar , Yazid Setiadi , Aji Rizal Fathoni
Published: April 2022

BACKGROUND

Most data breaches in health care organizations are caused by human factors. The medical environment has specific characteristics that might impact the decision and behavior of their employee, including in performing security practices.

OBJECTIVE

This study aims to review the literature on antecedent factors of information security behavior in health care organizations based on various stakeholders’ perspectives (clinical staff, non-clinical staff, medical students, and patients) and different types of health care entities (hospital, clinic, medical center, and others).

METHODS

This review searched academic articles on five online databases (Scopus, PubMed/MedLine, IEEE Xplore, Science Direct, SAGE) using specific keywords until 2022. Studies are selected following the Preferred Reporting Items for Systematic Reviews and Meta-Analyzes (PRISMA) protocol.

RESULTS

The result identifies antecedent factors that significantly influence the information security behavior of health information system users in various health care organizations. The factors are classified into individual and organizational factors. Top-three frequent individual factors are self-efficacy, perceived severity, and attitude, while frequent organizational factors are management support, cues to action, and organizational culture. Each factor is mapped on two types of security behavior, desirable and undesirable security behavior.

CONCLUSIONS

More individual factors are found significantly influence security behavior in health care organization. Previous studies in this field are still dominated by security compliance behavior. The researcher, manager of health care providers, and government should consider those factors to improve information security in health information system implementation.
Observations of icebergs in Antarctic cruises of the R/V “Akademik Mstislav Keldysh”
Authors: Morozov Eugene , Zuev O. , Zamshin V. , Krechik Victor , Ostroumova S. , Frey D.
Published: April 2022

We observed two different icebergs near the Antarctic Peninsula. One was one of the largest ever observed (160 km long). It calved from the Filchner Glacier. Fresher water field surrounded the iceberg and drifted together with the iceberg. The other glacier (800 m long) was aground in the Bransfield Strait. A strong current was flowing around this iceberg transporting away the freshwater that melted from the iceberg.
Effect of Physicochemical Process Variables on Natural Indigo Dye Production from Strobilanthes cusia Leaves by Response Surface Methodology
Authors: Rahayuningsih Edia , Fatimah Wachid Siti , Pamungkas Mukmin Sapto , Marfitania Taranipa
Published: April 2022

The recovery process of indigoid compounds involves enzymatic hydrolysis of indigo precursors continued by oxidation reaction to synthesize indigo pigment. The purpose of this research was to evaluate the effect of physicochemical process variables, i.e., temperature, time, and pH aeration, on indigo yield from Strobilanthes cusia leaves. Small leaf pieces were immersed in distilled water and heated at temperatures (40, 50, and 60 °C) and duration (1, 2, and 3 h). The extract was aerated at different pHs (8, 10, and 12) to form the indigo product. The indigo concentration was quantified through a visible spectrophotometer and high-performance liquid chromatography (HPLC). The optimized condition for indigo production was studied using response surface methodology (RSM). Temperature, time, and interaction between temperature and time significantly affected the indigo yield. The optimized conditions for extraction of indigo dyes were determined to be at 60 °C for 1 h and pH 8 for maximizing the indigo yield. On that condition, the indigo concentration quantified by HPLC was 1.15% (w/v) which was lower than that by the spectrophotometry. By spectrophotometric analysis, the actual indigo content of 1.68% (w/v) on that optimum condition was close to the predicted indigo content of 1.77% (w/v) using RSM.
Silicon Carbide/Polysilazane Composite: Effect of Temperature on the Densification, Phase, and Microstructure Evolution
Authors: Fauzi Fiqhi , Noviyanto Alfian , Fitriani Pipit , Wibowo Amirudin , Sudiro Toto , Aryanto Didik , Rochman Nurul Taufiqu
Published: April 2022

This paper reports a route to suppress the grain growth in silicon carbide (SiC) during its sintering by combining it with polysilazane (PSZ). SiC was mixed with PSZ in a 1:1 weight ratio and sintered at 1600, 1700, and 1800 °C in a hot-pressing furnace. A satisfactory density was obtained at sintering temperatures > 1600 °C. The grain sizes of the SiC/PSZ composites sintered at 1700 and 1800 °C were 112 and 125 nm, respectively. The grain shape of the SiC/PSZ composite sintered at 1700 °C was circular and mainly similar to the initial shape of the SiC powder. Grain shape accommodation was observed at a sintering temperature of 1800 °C. It is suggested that different sample shapes were affected by different liquid phase formations. Silicon oxynitride (Si2N2O) was formed and played an important role in densification and microstructure generation.
Preparation of Iron-Doped SiO2/TiO2 Using Silica from Sugarcane Bagasse Ash for Visible Light Degradation of Congo Red
Authors: Hikmah Nawwal , Agustiningsih Dewi , Nuryono Nuryono , Kunarti Eko Sri
Published: April 2022

Iron(III)-doped SiO2/TiO2 composite (SiO2/TiO2-Fe) has been prepared from sugarcane bagasse ash for photocatalytic degradation of Congo Red. This research was initiated by preparing SiO2 from sugarcane bagasse ash through a sol-gel method. The SiO2/TiO2-Fe was obtained by mixing SiO2 gel with TiO2-Fe sol which was produced with titanium tetraisopropoxide (TTIP) as precursor and FeCl3·H2O as the dopant source. Dopant concentration was varied by 0, 1, 3, 5, 7% (w/w). The prepared materials were characterized by FT-IR, XRD, SR-UV, XRF, SAA, and SEM-EDX. The photocatalytic activity was evaluated for Congo Red degradation in a closed reactor under visible light illumination. The degradation yield was determined by the UV-Visible spectrophotometry method. Results showed that SiO2 was successfully extracted from bagasse ash with a silica content of 90.87%. The SiO2/TiO2-Fe composite was successfully prepared with the bandgap energy value (Eg) decreasing as the dopant concentration increased. The optimum Eg of 2.63 eV was obtained at the concentration of Fe was 5%. Under that condition, the SiO2/TiO2-Fe photocatalyst degraded Congo Red solution by 98.18 % under visible light at pH 3 with a mass of 30 mg for 90 min. The SiO2/TiO2-Fe composite is expected to be a photocatalyst material candidate for dye wastewater treatment.
Simple and Green Preparation of ZnO Blended with Highly Magnetic Silica Sand from Parangtritis Beach as Catalyst for Oxidative Desulfurization of Dibenzothiophene
Authors: Trisunaryanti Wega , Novianti Safa Annissa , Fatmawati Dyah Ayu , Triyono Triyono , Ulfa Maria , Prasetyoko Didik
Published: April 2022

Simple and green preparation of ZnO blended with Parangtritis beach sand (BS) catalysts for oxidative desulfurization of dibenzothiophene (ODS-DBT) has been conducted. The ZnO-BS catalysts were prepared by blending ZnO with beach sand under a weight ratio of 1:1, 1:2, and 1:4, and then heated by microwave (MW) at 540 watts for 30 min, resulting in BS-MW, ZnO-MW, ZnO-BS-1-MW, ZnO-BS-2-MW, and ZnO-BS-4-MW, respectively. As a comparison, the ZnO-BS-1 was also heated by oven at 100 °C for 30 min produced ZnO-BS-1-OV. Each product was characterized by XRF, XRD, FTIR, acidity test by NH3 vapor adsorption, SAA, SEM-EDX, TEM, and magneticity test by an external magnetic field. Furthermore, each material was applied for ODS-DBT, and its product was analyzed by UV-Vis spectrophotometer and FTIR. The results showed that ZnO-BS-1-OV had the highest acidity of 2.3486 mmol/g and produced the highest DBT removal efficiency through the ODS reaction of 81.59%. The use of catalysts in ODS-DBT does not affect the main structure of the treated fuel. Therefore, the combination of ZnO with BS can provide good performance in ODS activity and facilitate the separation of catalysts after the reaction due to its magnetic iron oxide content.
Phytochemistry and Biological Activities of Curcuma aeruginosa (Roxb.)
Authors: Sari Aprilia Permata , Supratman Unang
Published: April 2022

Curcuma aeruginosa Roxb. is a stemless, aromatic rhizomatous plant, generally characterized by red corolla lobes, purple calyx, dark purple leaf sheath, purple-brown midrib, and greenish-blue rhizome. This species is usually blooming during the wet and rainy seasons, while the rhizome and leaves have an aromatic odor indicating the presence of volatile constituents. This plant has been used in many traditional medicines as a disinfectant, expectorant, and tonic, including treatment for the wound, diarrhea, dysmenorrhea, fever, coughs, and asthma. This paper aims to provide C. aeruginosa Roxb., summarized data regarding traditional uses, ethnopharmacology, phytochemistry, and pharmacological activities. From 1987 to 2021, about 34 phytochemicals have been isolated, and up to 223 compounds have been detected using Gas Chromatography-Mass Spectrometry. These metabolites differ from flavonoids, terpenoids, steroids, phenanthrenes, and so forth. Furthermore, various investigations demonstrated that the extracts and compounds obtained from the plant possess several pharmacological activities such as anticancer, antioxidant, antimicrobial, anti-dengue, immunostimulant, anthelmintic, anti-inflammatory, antiandrogenic, anti-nociceptive, and antipyretic, as well as uterine relaxant effect. Curcuma aeruginosa Roxb. is a promising medicinal herb and is usually used as oriental traditional medicine by local folks. Therefore, the result supports this plant as a potential source for therapeutic applications and drug development prospects.
Identification α-Amylase Inhibitors of Vernonia amygdalina Leaves Extract Using Metabolite Profiling Combined with Molecular Docking
Authors: Yunitasari Norainny , Raharjo Tri Joko , Swasono Respati Tri , Pranowo Harno Dwi
Published: April 2022

Vernonia amygdalina was reported to be used as a therapy for Diabetes Mellitus (DM). One of the mechanisms of therapy DM was to inhibit the action of the α-amylase enzyme. This study aimed to prove the presence of compounds that could inhibit the action of α-amylase. Vernonia amygdalina leaves were macerated with methanol and partitioned into n-hexane, dichloromethane (DCM), and ethyl acetate (EtOAc). Furthermore, they were tested for α-amylase inhibitory activity and analyzed using liquid chromatography-high resolutions mass spectrometry (LC-HRMS). Molecular docking and molecular dynamics simulation (MD simulation) examined unique compounds in the extract with good activity and chromatogram results. The EtOAc extracts showed potential as α-amylase inhibitors indicated by their IC50 values, namely 3.0 μg/mL. There are five unique compounds in the EtOAc extract predicted as 3-[(2Z)-3,7-dimethylocta-2,6-dien-1-yl]-2,4-dihydroxy-6-(2-phenylethyl)benzoic acid (compound 1), 2-hexylpentanedioic acid (compound 2), (2E,4E)-5-[1-hydroxy-2,6-dimethyl-4-oxo-6-({3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] oxy}methyl)cyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic acid (compound 3), 3,5,5-trimethyl-4-(3-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-1-yl)oxy}butyl)cyclohex-2-en-1-one (compound 4), and 2-{[(6E)-2,10-dihydroxy-2,6,10-trimethyldodeca-6,11-dien-3-yl]oxy}-6-(hydroxymethyl)oxane-3, 4,5-triol (compound 5). The molecular docking analysis showed that compound 3 had better interaction energy (Ei) (-8.59 kcal/mol) and inhibition constant (Ki) values (0.503 μM) than acarbose. These data were supported by MD simulations based on the parameters of RMSD value, the radius of gyration, and protein-ligand interaction energy.
Automatic Module Detection in Data Cleaning Workflows: Enabling Transparency and Recipe Reuse
Authors: Li Lan , Parulian Nikolaus , LudÃ¤scher Bertram
Published: April 2022

Before data from multiple sources can be analyzed, data cleaning workflows (â€œrecipesâ€) usually need to be employed to improve data quality. We identify a number of technical problems that make application of FAIR principles to data cleaning recipes challenging. We then demonstrate how transparency and reusability of recipes can be improved by analyzing dataflow dependencies within recipes. In particular column-level dependencies can be used to automatically detect independent subworkflows, which then can be reused individually as data cleaning modules. We have prototypically implemented this approach as part of an ongoing project to develop open-source companion tools for OpenRefine.
Keywords: Data Cleaning, Provenance, Workflow Analysis
APROXIMACIÓN AL RIESGO DE CÁNCER POR EXPOSICIÓN DÉRMICA AL CLOROFORMO DURANTE EL BAÑO. CASO DE ESTUDIO EN LA CIUDAD DE BOGOTÁ – COLOMBIA
Authors: Ramírez Cardona David , Núñez Lemus Marcela , Rodríguez Susa Manuel Salvador
Published: April 2022

Se aplicó la metodología del análisis cuantitativo del riesgo para determinar la probabilidad de ocurrencia de cáncer por exposición dérmica al cloroformo (subproducto de la desinfección) con base en la concentración medida en 96 muestras tomadas en la ciudad de Bogotá – Colombia, entre los años 2016 y 2019. El objetivo era investigar el riesgo de una mayor incidencia de cáncer dérmico por la exposición al cloroformo en el agua potable en diferentes temporadas. Los trihalometanos en las muestras de agua del grifo obtenidas durante el 2016-2019 fueron analizados por el método de purga y trampa con límites de detección (LoD) de 5 μg/L. El valor promedio de la concentración de cloroformo presentó incrementos graduales en los períodos de análisis encontrándose la menor concentración promedio en el período 2016-II con un valor de 24.1 μg/L y la máxima concentración en el período 2018-I con un valor de 35.8 μg/L. En conclusión, aunque se presentaron incrementos en la concentración del valor promedio de cloroformo, la exposición dérmica al subproducto de la desinfección analizado, en el período del presente estudio, no presenta un grave riesgo a la salud.