bluuebunny/crossref_metadata_2025_split huggingface dataset:
Filterless frequency 32-tupling millimeter-wave generation based on two cascaded dual-parallel Mach–Zehnder modulators
Authors: Chen Xinqiao , Dai Siyuan , Li Zhihan , Liu Xiaorui , Chen Xu , Xiao Huaibao 
Published: July 2023

This study proposed a novel scheme for filterless frequency 32-tupling millimeter wave (MMW) generation based on two cascaded dual-parallel Mach–Zehnder modulators (DPMZMs). When the MZMs are biased on a maximum transmission point and the phase difference of the radio frequency (RF) driving voltage between the two MZMs in DPMZM is π/2, the DPMZM can be used as a quadrupler, which can generate ±4n-order optical sidebands. When the phase difference of the RF driving voltage between the two DPMZMs is π/4, the two cascaded DPMZMs can be used as an octupler, which can generate ±8n-order optical sidebands. After the ±8th-order optical sidebands are suppressed by adjusting the modulation index of MZMs, the center carrier is suppressed by a polarization multiplexing structure, and the ±8n (n &gt; 2) sidebands are ignored because their amplitudes are very small. The main optical components remaining in the output of the two cascaded DPMZMs are ±16th-order optical sidebands, which are beaten in the photodetector to obtain frequency 32-tupling MMW. The theoretical and experimental optical sideband suppression ratios (OSSRs) and radio frequency spurious suppression ratios (RFSSRs) are 53.7 dB and 53.53 dB and 47.7 dB and 47.33 dB, respectively. The experimental and theoretical analysis is consistent, which verifies the feasibility of the scheme. The influence on the OSSR and RFSSR of the generated signals by the extinction ratio and DC bias drift of the MZMs, the initial phases and the amplitudes of the RF drive signal, and the azimuth of the polarization controller (PC) are investigated.
Mother-infant interaction context matters for verbal and non-verbal parental mentalization: an initial portrait of associations between parental embodied mentalizing, mind-mindedness, and maternal characteristics in a structured and unstructured context
Authors: Gagné Karine , Lemelin Jean-Pascal , Tarabulsy George 
Published: July 2023

IntroductionInterest in studying the parental embodied mentalizing (PEM), which refers to implicit and non-verbal processes of parental mentalization, is relatively recent. Therefore, little is known about how PEM, in complementarity with the verbal parental mentalization, is associated with maternal characteristics regarding mother-infant interaction contexts. This exploratory study aimed to investigate the associations between the non-verbal and verbal dimensions of parental mentalization- PEM and mind-mindedness, respectively, - in relation to a wide spectrum of parental characteristics in different interactive mother-infant contexts (toys and no toys).MethodsAmong a sample of 107 mother-infant dyads at moderate psychosocial risk, mothers’ sociodemographic information (age, education, and income), psychological characteristics (depression and anxiety), cognitions (self-efficacy and perceived maternal impact), and attitudes (overprotection and parental warmth) were assessed via self-report questionnaires when the infant was 4 and 8 months old. The PEM and mind-mindedness were evaluated through observation made during a videorecorded sequence of mother-infant interaction in a context of free play with and without toys at 8 months of age.ResultsThe results showed distinct associations between PEM and mind-mindedness regarding maternal characteristics: PEM was associated with the mother’s age, education, anxiety and maternal warmth, whereas mind-mindedness was related to cognitions. Both were linked to family income. Regarding mother-infant interaction contexts (toys vs. no toys), the results indicate that the capacity to verbally and non-verbally mentalize differs.DiscussionThese findings shed light on distinctive associations between non-verbal and verbal parental mentalization in relation to certain maternal characteristics, and highlight that the mother-infant interaction context may play an important role in the expression of maternal mentalizing capacity.
Burnout, depression, and suicidal ideation among physicians before and during COVID-19 and the contribution of perfectionism to physicians’ suicidal risk
Authors: Kleinhendler-Lustig Dafna , Hamdan Sami , Mendlovic Joseph , Gvion Yari 
Published: July 2023

ObjectivesThere is limited data regarding the prevalence of suicidal risk among physicians during COVID-19, and the risk factors relating to it. Dominant risk factors for suicide among physicians are depression and burnout. Maladaptive perfectionism may also serve as a profound risk factor for suicidality among physicians and may aggravate symptoms of distress under the challenges of COVID-19. This study aims to evaluate current suicidal risk, suicidal ideation, depression, and burnout before and during COVID-19 among physicians in Israel, and to identify the best sets of correlates between perfectionism and burnout, depression and suicidal ideation, during these time periods.MethodsA sample of 246 Israeli physicians (160 before COVID-19 and 86 during COVID-19) completed online surveys assessing lifetime suicidal risk, suicidal ideation during the last year and current suicidal ideation, depression, burnout symptoms and maladaptive perfectionism.ResultsMore than one-fifth of the sample (21.9%) reported high suicidal risk (Lifetime suicidal behaviors). More than one-fourth (27.2%) reported suicidal ideation during the last 12 months; and 13.4% reported suicidal ideation during the last 3 months. In addition, more than one-third (34.6%) exhibited moderate–severe levels of depressive symptoms and more than a half of the sample reported burnout symptoms. Maladaptive perfectionism was positively correlated with current suicidal ideation, burnout, and depression. Moderated serial mediation analysis demonstrated indirect effect of perfectionism on suicidal ideation by its impact on burnout and depression only during COVID-19. Before COVID-19, physicians were more likely to experience depressive symptoms.ConclusionPhysicians in Israel are at increased risk for depression and suicidal ideation, regardless of the COVID-19 pandemic. Maladaptive perfectionism was found to be a risk factor for burnout, depression, and suicidal ideation. During the first waves of the pandemic, physicians were less likely to experience depressive symptoms. However, among physicians who were characterized with high maladaptive perfectionism, depression served as a significant risk factor for suicidal ideation during the pandemic, which places these individuals at increased risk for suicidality. These results highlight the importance of implementing intervention programs among physicians to reduce suicidal risk and to better identify rigid perfectionism and depressive symptoms.
Association of food insecurity and sleep difficulty among 189,619 school-going adolescents: a study from the global in-school students survey
Authors: Osei Bonsu Emmanuel , Afetor Maxwell , Munkaila Lambongang , Okwei Reforce , Nachibi Stephen Uwumbordo , Adjei Benjamin Noble , Frimpong Eric , Arimiyaw Abdul Wahid , Adu Collins , Peprah Prince 
Published: July 2023

IntroductionAdolescents’ sleep disturbances are associated with chronic and dramatic physical, emotional, and mental development and school performance consequences. Although food insecurity could significantly contribute to these effects, few studies have explored the effect of food insecurity on sleep disturbances among adolescents. The study aimed to examine the relationship between adolescents’ food insecurity and sleep disturbance.MethodsData on 189,619 adolescents were drawn from the cross-sectional global adolescent health surveys conducted between 2015 and 2018 in 35 countries and territories. Univariate and multivariable multinomial regression models were fitted to examine the hypothesized associations.ResultsOverall pooled prevalence of moderate [45.2% (95%CI = 43–47)] and severe [5.8% (95%CI = 5–6)] food insecurity levels were reported. About [52.6% (95%CI = 51–54)] moderate and [8.6% (95%CI = 8–9)] severe worry-induced sleep disturbances were found. Considering the fully adjusted multinomial logistic model, moderate food insecurity was significantly associated with moderate (AOR = 1.70 CI = 1.59–1.81; p &lt; 0.0001) and severe (AOR = 1.63 CI = 1.42–1.87; p &lt; 0.0001) sleep disturbances. Also, adolescents reporting severe levels of food insecurity had moderate (AOR = 1.88 CI = 1.68–2.11; p &lt; 0.0001) and severe (AOR = 4.07 CI = 4.74–6.11; p &lt; 0.0001) sleep disturbances. Females and those aged between 15 and 17 years and 18 or more were at higher risk of moderate and severe sleep disturbances in the context of food insecurity.ConclusionReducing food insecurity could be an effective policy strategy for enhancing adolescent sleep quality.
Principal risks in designing wastewater treatment facilities. Calculation of aeration tanks (part 1)
Authors: Харькина О.В. 
Published: July 2023

Представлен детальный расчет значений аэробного возраста активного ила для обеспечения требуемого качества очищенной воды как по аммонийному азоту, так и по азоту нитритов с примерами. Проведен расчет аналогичных показателей по эмпирической, в большинстве своем, методике Даниловича-Эпова и показано на основании этих расчетов, почему методика Даниловича–Эпова дает заниженные значения аэробного возраста ила. Показано, что расчеты объемов аэротенков в нашей стране всегда (с 1974 г.) основывались на формулах ферментативной кинетики и представляли собой теоретические (математические) модели. Большинство технологов в нашей стране всегда рассчитывали и рассчитывают сооружения биологической очистки сточных вод по формулам ферментативной кинетики, при этом такой подход является всегда следующим шагом по сравнению с эмпирическими моделями.
A detailed calculation of the values of the aerobic age of activated sludge is presented to ensure the required quality of the effluent, both in terms of ammonium nitrogen and nitrite nitrogen, with examples. Similar indicators have been calculated, for the most part, by the Danilovich–Epov empirical method, and on the basis of the calculations it is shown why the Danilovich–Epov method gives underestimated values of the sludge aerobic age. It is shown that calculations of the aeration tank volumes in our country have always (since 1974) been based on the formulas of enzymatic kinetics and, hence, have been theoretical (mathematical) models. Most process engineers in our country have always calculated and still are calculating biological wastewater treatment facilities using the formulas of enzymatic kinetics; therewith, this approach is always the next step compared to empirical models.
Application of hyperthermal alignment controlled O2 beam and atomic oxygen beam to surface reaction analysis
Authors: Kurahashi Mitsunori 
Published: July 2023

Abstract
Use of atomic/molecular beams with well-defined kinetic energy and internal states allows us to investigate details about the elementary processes of gas-surface interactions. O2 is involved in many technologically important processes while the fact that it is a linear molecule with an electron spin needs to be considered for understanding the microscopic details of the O2-surface interaction. A spin-rotational state-selected O2 beam allows us to clarify how the molecular alignment and spin affect the O2-surface interaction. Its recent applications to the analysis of O2 adsorption and catalytic CO oxidation on flat and stepped Pt surfaces are shown. We have also developed an apparatus that allows us to put a radical beam onto a surface and monitor the change in the surface chemical states with metastable deexcitation spectroscopy. The apparatus and its application to the analysis of CO oxidation by atomic oxygen on Pt(111) are also presented.
PENGARUH CONTENT MARKETING, E-MAIL MARKETING DAN MOBILE MARKETING TERHADAP CUSTOMER ENGAGEMENT PADA NADIA MART DAWAS
Authors: Ida Bagus Kurniawan  , Natalia Sri Endah Kurniawati  , I Wayan Ruspendi Junaedi  
Published: July 2023

Nadia Mart Dawas is one of the UMKM in Badung that uses digital marketing for promoting the product. The types of digital marketing that used is Content Marketing, E-Mail Marketing and Mobile Marketing. The Digital marketing efforts are closely related to customer engagement. Customer engagement is a behavior that makes customers contribute to the company's where the contribution is not only like the purchase of the product but the contribution given is a feedback, suggestions and ideas. This research was conducted with the aim of knowing the effect of Content Marketing, E-Mail Marketing and Mobile Marketing on Customer Engagement at Nadia Mart Dawas. This research was conducted by distributing online questionnaires to 150 respondents who are customer of Nadia Mart Dawas. The method used in this study is multiple linear regression to determine the effect of several variables on other variables. Based on the research that has been done, the results show that content marketing variables, email marketing variables and mobile marketing variables partially have a significant effect on customer engagement, and after all the variables X tested together has an effect on variable Y with a percentage of influence are 55.5% , and 45.5% is influenced by variables that are not used in this study.
Pengenalan Pembelajaran TIK di TK Indo Global Mandiri
Authors: Setiawan Herri , Tasmi Tasmi 
Published: July 2023

Pengabdian kepada Masyarakat (PkM) merupakan salah satu pilar Tri Dharma Perguruan Tinggi, disamping dharma pendidikan dan pengajaran serta dharma penelitian. TK Indo Global Mandiri (IGM) merupakan salah satu sekolah yang sudah terdaftar di Kemendikbudristek yang akan menerapkan pembelajaran implementasi kurikulum merdeka mandiri berdasarkan keputusan Kepala Badan Standar, Kurikulum dan Assesmen Pendidikan Kementrian Pendidikan Kebudayaan Riset dan Teknologi nomor 027/H/KR/2022 tentang satuan Pendidikan pelaksana kurikulum merdeka melalui jalur mandiri pada tahun 2022/ 2023 tahap II. Sejalan dengan hal tersebut, tujuan dari kegiatan PkM di TK IGM ini adalah upaya optimalisasi digitalisasi pembelajaran sebagai bentuk tanggung jawab kepada anak didik, dan akan terus dievaluasi melalui dukungan penuh Yayasan Indo Global Mandiri untuk keberlanjutan program selanjutnya. Seluruh rangkaian kegiatan pelatihan berjalan dengan lancar dan mendapat dukungan dari segenap peserta. Pelatihan telah dapat meningkatkan pemahaman guru TK IGM tentang Pembelajaran TIK kepada Anak Usia Dini (PAUD), sehingga dapat mengembangkan mutu sekolah dan juga meningkatkan stimulasi pengembangan karakter pada anak usia dini dengan baik sesuai dengan kodrat zamannya.
LITERRATURE REVIEW: MANAJEMEN RANTAI PASOK AGROINDUSTRI RUMPUT LAUT
Authors: Hermalena Leffy , Melinda Noer  , Novizar Nazir  , Rika Ampuh Hadiguna  
Published: July 2023

Rantai pasok agroindustri memiliki karakteristik yang berbeda dibandingkan dengan rantai pasok lainnya. Pertanian rumput laut berkembang cepat terutama pada industri makanan yang menjadi pemimpin pasar produk rumput laut bernilai tinggi. Rantai pasok rumput laut menghadapi masalah yang kompleks, seperti ketidakstabilan ketersediaan rumput laut yang menyebabkan ketidakmampuan dalam memenuhi kebutuhan pelanggan. Kualitas yang buruk dapat berdampak negatif pada penurunan kepuasan pelanggan jangka panjang. Fluktuasi harga rumput laut juga sangat mempengaruhi profitabilitas yang mengakibatkan hilangnya keuntungan. Keberlanjutan rumput laut untuk kebutuhan masa depan menekankan pentingnya manajemen rantai pasok yang tepat. Penelitian ini bertujuan untuk meninjau pengetahuan tentang manajemen rantai pasok mencakup konsep, metodologi dan objek penelitian. Metode penelitian ini deskriptif kualitatif. Hasil penelitian adalah supply chain management belum menjangkau pengembangan kawasan sentra produksi produk turunan untuk memenuhi ketersediaan bahan baku secara keberlanjutan. Kesimpulannya supply chain management pada agroindustri rumput laut akan berpengaruh kepada pengembangan kawasan sentra produksi, peningkatan kemampuan sumber daya pelaku rantai pasok agroindustri rumput laut, dan ketersediaan bahan baku berupa produk turunan secara berkelanjutan.
Kata kunci: agroindustri, rumput laut, supply chain management
WELLNESS TOURISM MARKETING STRATEGY THROUGH SOCIAL MEDIA
Authors: Sunaryo Sunaryo , Astutiningsih Sri , Wahyono Sri , Adani Puteri Shabrina 
Published: July 2023

Wellness tourism (wisata kebugaran) adalah wisata yang mengutamakan peningkatan kesehatan, kebugaran fisik dan pemulihan kesehatan spiritual wisatawan. Sebagai langkah operasional dalam mencapai tujuan pengembangan produk dan destinasi pariwisata, serta strategi pemasaran produk wisata wellness di Indonesia, Kementerian Pariwisata dan Ekonomi Kreatif (Kemenparekraf) menetapkan beberapa strategi pemasaran, yaitu pemasaran pariwisata dan ekonomi kreatif berorientasi hasil dengan fokus pasar potensial; perluasan pangsa pasar produk ekonomi kreatif; dan pemanfaatan teknologi dalam mendukung pemasaran pariwisata dan ekonomi kreatif. Tujuan penelitian ini adalah untuk menganalisis peningkatan jumlah wisatawan mancanegara pada Wellness Tourism melalui optimalisasi media sosial. Penelitian ini menggunakan pendekatan kualitatif. Hasil penelitian menunjukkan bahwa strategi pemasaran melalui media sosial dapat meningkatkan jumlah wisatawan mancanegara. Potensi pemasaran ke target pasar wellness tourism dilakukan dengan menganalisis penggunaan platform media sosial di negara tersebut. Rekomendasi disampaikan kepada regulator, fasilitator dan pelaku industri wellness tourism yang meliputi Kementerian Pariwisata dan Ekonomi Kreatif, Dinas Pariwisata Provinsi dan Kabupaten/Kota, serta industri wellness tourism.
Kata Kunci : Strategi Pemasaran, Wellness Tourism, Wisatawan, Media Sosial.
Kajian Tingkat Kinerja Pegawai
Authors: Zuriana Zuriana , Septarina Linda , Andriyani Ima 
Published: July 2023

ABSTRACT
Research to determine the level of employee performance was carried out at SMA N 1 Katibung and SMA N 1 Sragi, South Lampung Regency. The level of employee performance is proxied by a comparison of employee performance in this case teachers by age. The type of research used is quantitative with a comparative method. The researchers used a population of teachers from SMA N 1 Katibung and SMA N 1 Sragi as many as 78 teachers and a set sample of 34 honorary teachers. The sample is divided into teachers with an old age category of 18 honorary teachers and teachers in the young age category of 16 honorary teachers. The sampling technique uses purposive sampling techniques and independent t-Test data analysis. The result of this study is that there are differences in the performance of employees or teachers in the old age category and teachers with the young age category at SMA N 1 Katibung and SMA N 1 Sragi Lampung Selatan.
Prenatal dönemde tanı alan konotrunkal kalp anomalisi tanılı gebeliklerin perinatal sonuçları: Tersiyer merkez deneyimi
Authors: BESİMOGLU Berhan , SAHİN Dilek 
Published: July 2023

Amaç: Perinatoloji kliniğimizde prenatal dönemde tanı konulan ve takip ettiğimiz konotrunkal kalp anomalilerin alt tiplerini, bunların diğer yapısal ve/veya kromozomal anomaliler ile ilişkisini, konotrunkal defektin tipine göre perinatal sonuçları değerlendirmeyi ve sonucunda konotrunkal kalp anomalileri ile ilgili klinik deneyimlerimizi paylaşmayı hedefledik.
Gereçler ve Yöntem: Bu retrospektif çalışma Ankara Şehir Hastanesi Perinatoloji Kliniğinde 10.03.2020 ile 30.10.2022 tarihleri arasında prenatal dönemde konotrunkal kalp anomali tanısı almış 93 vakadan takip döneminde takipten çıkan postnatal sonuçlarına ulaşılamayan ve postnatal fetal ekokardiografi ile konotrunkal anomali tanısı doğrulanmayan 14 vaka çıkarılarak postnatal tanısı kesinleştirilmiş 79 hastayla gerçekleştirilmiştir. Primer sonucunumuz prenatal konotrunkal anomali tanılı gebeliklerin sonuçlarını ve anomalinin tipine göre eşlik edebilecek yapısal ve/veya kromozomal anomalilerle ilişkisini değerlendirmekti.
Bulgular: Çalışmamızda 79 vaka analiz edilmiştir. En sık izlenen konotrunkal kalp anomalisi Fallot tetralojisiydi (40.5%). Çalışmaya aldığımız 79 vakanın ortalama maternal yaşı 30.2 idi. Hastaların refere kliniğimize başvurduğu ortalama gebelik haftası 27.5 olarak hesaplandı. Gebelik sonuçlarını incelediğimizde 79 vakadan 9’nda (11.4%) gebelik terminasyon ile sonuçlanmıştır. Altmış dokuz (87.3 %) hastanın gebeliği canlı doğum ile sonuçlanmıştır. Hastaların 33 (41.7%) tanesinde konotrunkal anomaliye ek ekstra kardiyak yapısal anomali mevcuttu. En sık izlenen kromozomal anomali Trizomi 21 (6/15) di. Canlı doğan 69 vakanın ortalama doğum haftası 37, ortalama doğum kilosu 2797 gramdı. Yenidoğan döneminde mortalite oranı 37.6% (26/69) olarak hesaplandı. Ayrıca canlı doğan 69 vakadan 41’nde izole konotrunkal anomali tanısı mevcuttu.
Sonuç: Konotrunkal kalp anomalilerinin prenatal tanısı, eşlik edebilecek ek yapısal ekstrakardiyak ya da kromozomal anomalilerin spatanmasına katkıda bulunur, dolayısyla ailerlere uygun danışmanlık ve uygun koşullarda doğum planlaması sağlar.
Satellite Optical Brightness
Authors: Fankhauser Forrest , Tyson J. Anthony , Askari Jacob 
Published: July 2023

Abstract
The apparent brightness of satellites is calculated as a function of satellite position as seen by a ground-based observer in darkness. Both direct illumination of the satellite by the Sun as well as indirect illumination due to reflection from the Earth are included. The reflecting properties of the satellite components and of the Earth must first be estimated (the Bidirectional Reflectance Distribution Function, or BRDF). The reflecting properties of the satellite components can be found directly using lab measurements or accurately inferred from multiple observations of a satellite at various solar angles. Integrating over all scattering surfaces leads to the angular pattern of flux from the satellite. Finally, the apparent brightness of the satellite as seen by an observer at a given location is calculated as a function of satellite position. We develop an improved model for reflection of light from Earth’s surface using aircraft data. We find that indirectly reflected light from Earth’s surface contributes significant increases in apparent satellite brightness. This effect is particularly strong during civil twilight. We validate our approach by comparing our calculations to multiple observations of selected Starlink satellites and show significant improvement on previous satellite brightness models. Similar methodology for predicting satellite brightness has already informed mitigation strategies for next-generation Starlink satellites. Measurements of satellite brightness over a variety of solar angles widens the effectiveness of our approach to virtually all satellites. We demonstrate that an empirical model in which reflecting functions of the chassis and the solar panels are fit to observed satellite data performs very well. This work finds application in satellite design and operations, and in planning observatory data acquisition and analysis.