bluuebunny/crossref_metadata_2025 huggingface dataset:
Ionosonde and GPS Total Electron Content Observations during the 26 December 2019 Annular Solar Eclipse over Indonesia
Authors: Harjosuwito Jiyo , Husin Asnawi , Dear Varuliantor , Muhamad Johan , Faturahman Agri , Bahar Afrizal , Erlansyah Erlansyah , Syetiawan Agung , Pradipta Rezy
Published: October 2022

Abstract. We report our investigation of ionospheric effects due to the passage of an annular solar eclipse over Southeast Asia on 26 December 2019, using multiple set of observations. Two ionosondes (one at Kototabang and another at Pontianak) were used to measure dynamical changes in the ionospheric layer during the event. A network of ground-based GPS receiver stations in Indonesia were used to derive the distribution of total electron content (TEC) over the region. In addition, extreme ultraviolet (EUV) images of the Sun from the Atmospheric Imaging Assembly (AIA) instrument on board the Solar Dynamics Observatory (SDO) satellite were also analyzed to determine possible impacts of solar active regions on the changes that occurred in the ionosphere during the eclipse. We found −1.67 MHz and −1.58 MHz reduction (23.2 % and 22.4 % relative reduction) in foF2 during the solar eclipse over Kototabang and Pontianak, respectively. The respective TEC reduction over Kototabang and Pontianak during the eclipse was −4.34 TECU and −5.45 TECU (24.9 % and 27.9 % relative reduction). Overall, there was 34–36 minutes delay from maximum eclipse until minimum foF2 was reached at these two locations. The corresponding time delays for eclipse-related TEC reduction at these two locations were 40 minutes and 16 minutes, respectively. The ionospheric F-layer was found to descend with a speed of 9–19 m/s during the first half of the eclipse period. We also found an apparent rise of the ionospheric F-layer height near the end of the solar eclipse period, equivalent to vertical drift velocity of 44–47 m/s. The GPS TEC data mapping along a set of cross-sectional cut lines indicate that the greatest TEC reduction actually occurred to the north of the solar eclipse path, opposite of the direction from which the lunar shadow fell. As the central path of the solar eclipse was located just to the north of the southern equatorial ionization anomaly (EIA) crest, it is suspected that such a peculiar TEC reduction pattern was caused by plasma flow associated with the equatorial fountain effect. Net perturbations of TEC were also computed and analyzed, which revealed the presence some wavelike fluctuations associated with the solar eclipse event. Some of the observed TEC perturbation patterns that propagated with a velocity matching the lunar shadow may be explained in terms of non-uniform EUV illumination that arose as various active regions on the Sun went obstructed and unobstructed during the eclipse. The remaining wavelike features are likely to be traveling ionospheric disturbances (TIDs) driven by acoustic-gravity waves (AGWs), generated by the passage of the solar eclipse on top of other diurnal factors.
Interdecadal glacier inventories in the Karakoram since the 1990s
Authors: Xie Fuming , Liu Shiyin , Gao Yongpeng , Zhu Yu , Bolch Tobias , Kääb Andreas , Duan Shimei , Miao Wenfei , Kang Jianfang , Zhang Yaonan , Pan Xiran , Qin Caixia , Wu Kunpeng , Qi Miaomiao , Zhang Xianhe , Yi Ying , Han Fengze , Yao Xiaojun , Liu Qiao , Wang Xin , Jiang Zongli , Shangguan Donghui , Zhang Yong , Grünwald Richard , Adnan Muhammad , Karki Jyoti , Saifullah Muhammad
Published: October 2022

Abstract. Multi-temporal glacier inventories provide key information about the glaciers, their characteristics and changes and are inevitable for glacier modelling and investigating geodetic mass changes. However, to date, no consistent multi-tempo glacier inventory for the whole of the Karakoram exists, negatively affecting the monitoring of spatiotemporal variations of glaciers’ geometric parameters and their related applications. We used a semi-automatic method combining automatic segmentation and manual correction and produced multi-temporal Karakoram glacier inventories (KGI) compiled from Landsat TM/ETM+/OLI images for the 1990s, 2000s, 2010s, and 2020s. Our assessments using independent multiple digitization of 37 glaciers show that the KGI is sufficiently accurate, with an overall uncertainty of ±3.68 %. We also performed uncertainty evaluation for the contiguous glacier polygons using a buffer of half a pixel, which resulted in an average mapping uncertainty of ±3.68 %. We calculated more than 20 attributes for each glacier, including coordinates, area, supraglacial debris area, date information, and topographic parameters derived from the ASTER GDEM. According to the KGI-2020, approximately 10500 alpine glaciers (> 0.01 km2 each) cover an area of 22510 ± 828 km2 of which 10.18 ± 0.38 % (2290 ± 84 km2) are covered by supraglacial debris. Over the past three decades, the glaciers experienced a loss of clean ice/snow area but a gain in supraglacial debris. Supraglacial debris cover has increased by 17.63 ± 1.44 % (343.30 ± 27.95 km2) while non-debris-covered glaciers decreased by 1.56 ± 0.0.24 % (319.85 ± 49.92 km2). The total glacier area was relatively stable and showed only a slight insignificant increase of 23.45 ± 28.85 km2 (0.10 ± 0.13 %). The glacier area has declined by 3.27 ± 0.24 % in the eastern Karakoram while the glacier area slightly increased in central (0.65 ± 0.10 %) and western Karakoram (1.26 ± 0.11 %). Supraglacial debris has increased over whole Karakoram, especially in areas above 4200 m a.s.l., showing an upward shift. The glacier area changes were characterized by strong spatial heterogeneity, influenced by surging and advancing glaciers. However, due to global warming, the glaciers are on average retreating. This is in particular true for small and debris-free glaciers. The multi-temporal KGI data are available at the National Cryosphere Desert Data Center of China: https://doi.org/10.12072/ncdc.glacier.db2386.2022 (Xie et al., 2022a).
GRACE and GRACE-FO Level-1 V04 Data Processing Status
Authors: Mccullough Christopher , Bertiger William , Blackwood Carmen , Byun Sung , Fahnestock Eugene , Finch Christopher , Harvey Nate , Landerer Felix , Miller Mark , Paik Meegyeong , Volk Christopher
Published: October 2022

The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO), launched in May 2018, provides invaluable information about mass change in the Earth system, continuing the legacy of GRACE. Fundamental requirements for successful mass change recovery are precise orbit determination and inter-satellite ranging, determination of the relative clock alignment of the ultra-stable oscillators (USOs), precise attitude determination, and accelerometry. NASA/Caltech Jet Propulsion Laboratory is the official Level-1 data processing and analysis center, and is currently processing using software version 04. Here we present analysis of the aforementioned GRACE-FO sensor data, as well an overview of the current GRACE reprocessing, and a discussion of measurement system performance. The research presented in this abstract has been carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.
SDS Level-2/-3 GFZ
Authors: Dahle Christoph
Published: October 2022

This presentation will give an overview of GFZ's activities within the GRACE-FO Science Data System (SDS) including the current status of Level-2 and Level-3 products. Additionally, an alternative processing strategy which could be applied in case of an IPU failure on the GF2 satellite (where currently the redundant IPU is already running) will be presented and preliminary results of this approach will be shown.
Transit Time index (TTi) as an adaptation of the humification index to illustrate transit time differences in karst hydrosystems: application to the karst springs of the Fontaine de Vaucluse system (southeastern France)
Authors: Serène Leïla , Batiot-Guilhe Christelle , Mazzilli Naomi , Emblanch Christophe , Babic Milanka , Dupont Julien , Simler Roland , Blanc Matthieu , Massonnat Gérard
Published: October 2022

Abstract. Transit time can be estimated thanks to natural tracers, but few of
them are usable in the 0–6-month range. The main purpose of this work is to
analyze the potential of the ratio of heavy- to light-weight organic
compounds (the humification index (HIX); Ohno, 2002; Zsolnay et al., 1999) as a natural tracer of
short transit time (Blondel et al., 2012). Critical analysis of former
studies shows that although the link between HIX and transit time seems
consistent, the whole methodological approach needs to be consolidated.
Natural organic matter fluorescence from 289 groundwater samples from four springs and 10 flow points located in the unsaturated zone of the Vaucluse
karst system is characterized by parallel factor analysis (PARAFAC) thanks
to the excitation–emission matrix (EEM), thus (i) allowing for the identification of
main fluorescent compounds of sampled groundwater and (ii) evidencing the
inadequacy of HIX 2D emission windows to characterize groundwater organic
matter. We then propose a new humification index called the Transit Time index
(TTi) based on the Ohno (2002) formula but using PARAFAC components of heavy and
light organic matter from our samples instead of 2D windows. Finally, we
evaluate TTi relevance as a transit time tracer by (i) performing a
detailed analysis of its dynamics on a selected spring (Millet) and (ii) comparing its mean value over karst springs of the Vaucluse karst system.
Principal component analysis (PCA) of TTi and other hydrochemical parameters
monitored at Millet spring put in relief the different ranges of transit
time associated with the different organic matter compounds. PCA results
also provide evidence that TTi can detect a small proportion of fast
infiltration water within a mix, while other natural tracers of transit time
provide no or less sensitive information. TTi distributions at monitored
karst springs are consistent with relative transit times expected for the
small-scale, short average transit time systems. TTi thus appears as a
relevant qualitative tracer of transit time in the 0–6-month range where
existing tracers fail and may remain applicable, even in the case of
anthropic contamination thanks to PARAFAC modeling. Transforming it into
quantitative information is a challenging task which may be possible thanks
to intensive studies of organic matter degradation kinetics in natural
waters with the help of radiogenic isotope usage or an artificial tracer test.
Common-mode signals and vertical velocities in the greater Alpine area from GNSS data
Authors: Pintori Francesco , Serpelloni Enrico , Gualandi Adriano
Published: October 2022

Abstract. We study the time series of vertical ground displacements from
continuous global navigation satellite system (GNSS) stations located in the European Alps. Our goal is to
improve the accuracy and precision of vertical ground velocities and spatial
gradients across an actively deforming orogen, investigating the spatial and
temporal features of the displacements caused by non-tectonic geophysical
processes. We apply a multivariate statistics-based blind source separation
algorithm to both GNSS displacement time series and ground displacements
modeled from atmospheric and hydrological loading, as obtained from global
reanalysis models. This allows us to show that the retrieved geodetic
vertical deformation signals are influenced by environment-related
processes and to identify their spatial patterns. Atmospheric loading is the
most important process, reaching amplitudes larger than 2 cm, but
hydrological loading is also important, with amplitudes of about 1 cm, causing the peculiar spatial
features of GNSS ground displacements: while the displacements caused by
atmospheric and hydrological loading are apparently spatially uniform, our
statistical analysis shows the presence of N–S and E–W displacement gradients. We filter out signals associated with non-tectonic deformation from the GNSS
time series to study their impact on both the estimated noise and linear
rates in the vertical direction. Taking into account the long time span of the time series considered in this work, while the impact of filtering on rates appears rather limited, the uncertainties estimated from filtered time series assuming a power
law plus white noise model are significantly reduced, with an important
increase in white noise contributions to the total noise budget. Finally, we
present the filtered velocity field and show how vertical ground velocity
spatial gradients are positively correlated with topographic features of the
Alps.
Peningkatkan Kreativitas Guru-Guru di Tengah Pandemi Covid-19
Authors: Roga Arkadius
Published: October 2022

Distance Teaching or Learning From Home is not the expectation of either the teachers or the students. The conditions caused by the spread of the Covid-19 virus make it uncomfortable for everyone, especially teachers and students. With such a situation, teachers still try to provide teaching materials to students with different media and teaching techniques than before. The virtual encounter made many students find it difficult to accept teaching which resulted in a decrease in their interest in learning. In this case, the creativity of the teachers is required so that students' interest in learning does not decrease and even is able to attract, so they can follow and understand what is given. Inevitably, teachers need to learn more in education management, public speaking, psychology, computers and websites that are needed during the teaching process. These things are not because teachers do not study during education, but because of the pandemic situation that makes the learning process no longer face-to-face but virtual. This is what makes teachers need to adapt to new things and new thinking and creativity. In this case, teachers, in particular, need to be familiar with the internet and computer learning process as access to virtual learning. There are many media websites and applications that are helpful and interesting in the learning process so that students are interested and increase their interest in learning.
„Nieobecny dyskurs” o potencjale politycznym edukacji religijnej w Polsce
Authors: Chrostowski Mariusz
Published: October 2022

The issue of the “political turn” in the context of religious-pedagogical reflection in Poland should be considered – in some sense – as “absent discourse”. Despite this, one of the leading tasks of the Catholic Church, and thus of religious education in Polish schools, is to shape believers so, that they are not only good Christians, but also citizens, aware of their rights and obligations. Based on this assumption, in the first step of the theoretical analysis, the relations between the Church itself and politics were presented. Then, the “broadened” and at the same time pro-democratic horizon of the religion lesson was outlined. Finally, the religious and pedagogical perspectives were presented, not only directly related to the political dimension of religious education in Poland, but also challenging it in terms of content, structure and concept.
NGHIÊN CỨU TÌNH TRẠNG ĐỀ KHÁNG INSULIN Ở BỆNH NHÂN VIÊM GAN SIÊU VI C MẠN QUA CHỈ SỐ TRIGLYCERID-GLUCOSE, NĂM 2022
Authors: Kiều Đỗ Minh
Published: October 2022

Mục tiêu: Khảo sát tình trạng kháng insulin qua chỉ số Triglycerid - glucose và chỉ số HOMA-IR.Tìm hiểu mối liên quan giữa tình trạng đề kháng insulin theo chỉ số Triglycerid - glucose với một sốyếu tố nguy cơ ở bệnh nhân viêm gan siêu vi C mạn.Phương pháp nghiên cứu: Chúng tôi tiến hành nghiên cứu theo phương pháp mô tả cắt ngang ở88 bệnh nhân từ 18 tuổi trở lên được chẩn đoán viêm gan siêu vi C mạn theo tiêu chuẩn của Bộ Y tếnăm 2016.Kết quả: Tỷ lệ kháng insulin theo Triglycerid - Glucose là 47,7%; HOMA-IR là 48,9%. Tỷ lệ khánginsulin theo Triglycerid - glucose ở nhóm xơ gan F4 (Fibroscan) là 79,3%. Có mối liên quan ý nghĩathống kê giữa mức độ xơ hóa gan với tình trạng kháng insulin theo chỉ số Triglycerid - glucose(p<0,01).Kết luận: Chỉ số Triglycerid - Glucose đơn giản, có giá trị tiên lượng, dự báo kháng insulin, cầnđược khuyến cáo sử dụng trên lâm sàng.
VAI TRÒ CỦA SIÊU ÂM DOPPLER MÔ CƠ TIM TRONG ĐÁNH GIÁ CHỨC NĂNG TÂM TRƯƠNG THẤT TRÁI Ở BỆNH NHÂN SUY TIM NẶNG
Authors: Lợi Đỗ Doãn , Bằng Hoàng Thị Phú , Hương Trương Thanh
Published: October 2022

Mục tiêu: Đánh giá vai trò của siêu âm doppler trong đánh giá chức năng thất trái ở bệnh nhân suytim trước và sau can thiệp bằng cấy máy tạo nhịp.Phương pháp nghiên cứu: Một nghiên cứu mô tả cắt ngang được thực hiện trên 33 bệnh nhân suytim nặng được điêu trị tại Bệnh viện Bạch Mai từ năm 2008 đến 2015.Kết quả: Có sự khác biệt có ý nghĩa thống kê về chỉ số co ngắn sợi cơ D (%) sau cấy máy cao hơn4,5% so với giá trị đo được ở thời điểm nhập viện (t0). Phân suất tống máu EF (Teich) ở thời điểmsau điều trị hơn tương ứng 4,8% và 7,1% so với EF ở thời điểm nhập viện. Phân suất tống máu EF(Biplane) giảm có ý nghĩa thống kê (5,3% so 7,6%). Kết quả siêu âm nhĩ trái cho thấy thể tích nhĩtrái trung bình tại thời điểm sau điều trị giảm 4,4 ml/m2 so với thể tích nhĩ trái trung bình ở thời điểmnhập viện. Sự khác biệt này có ý nghĩa thống kê với p <0,05. Phần lớn các chỉ số siêu âm tim đềugiảm có ý nghĩa thống kê sau điều trị.
SÀNG LỌC LAO PHỔI SỬ DỤNG CÁC HỆ THỐNG ĐỌC PHIM XQUANG TỰ ĐỘNG: MỘT NGHIÊN CỨU TỔNG QUAN TÀI LIỆU
Authors: Cừ Đào Huy , Hoàn Lê Thị , Công Cung Văn
Published: October 2022

Mục tiêu: Nghiên cứu tổng quan tài liệu về sàng lọc lao phổi sử dụng các hệ thống đọc phim Xquangtự động.Đối tượng và phương pháp: 13 tài liệu từ 2 cơ sở dữ liệu là MEDLINE và Cochrance trong giaiđoạn từ 01/2010 – 12/2021 được đưa vào phân tích.Kết quả: Nghiên cứu đã cho thấy hiện có 12 hệ thống đọc phim Xquang tự động đã được ứng dụngtrong sàng lọc bệnh lao phổi. Độ nhạy của các hệ thống dao động trong khoảng 0.70 – 0.95 vớiđộ đặc hiệu tương ứng là 0,42 – 0,99. Trong số này có 3 hệ thống đạt mức độ nhạy và độ đăc hiệutheo khuyến cáo của TCYTTG cho một công cụ sàng lọc bệnh lao (độ nhạy >=90% và độ đặc hiệu>=70%) đó là: qXR, CAD4TB và INSIGHT CXR.Kết luận: Nghiên cứu đã nêu bật bức tranh tổng quan và giá trị của một số phần mềm ứng dụng AItrong đọc phim Xquang ngực tự động hỗ trợ chẩn đoán lao phổi.
Գիտության դիվանագիտություն. գերտերություններին միավորող ընդհանուր հայտարար/Coscience Diplomacy: A Common Denominator Uniting the Superpowers
Authors: HAYRAPETYAN Albert
Published: October 2022

Science diplomacy, according to Berkman’s definition, is an international, interdisciplinary and inclusive (holistic) process, involving informed decision-making to balance national interests and common interests for the benefit of all on Earth across generations. It is widely used to overcome the discrepancies of the superpowers in unique scientific activities, where the joint efforts of a number of countries is required. Even when the international tension is heightened, states still do not abandon the science diplomacy and keep cooperating. The paper provides an informed look on how science diplomacy works in areas such as Arctic region, Antarctic region and the International Space Station.
Farklı Eğimdeki Konum ve Anaçlara Sahip Bağda Salkım Seyreltmenin; Salkım Özellikleri ve Verime Etkisi
Authors: Korkutal İlknur , Bahar Elman , Koskosoğlu Batuhan
Published: October 2022

Bu çalışma 2019-2020 ve 2020-2021 vejetasyon periyotlarında iki yıl süreyle Tekirdağ ili Şarköy ilçesi sınırları içinde yer alan üretici bağında yürütülmüştür. Deneme alanı 40° 39' 12.00" K ve 27° 03' 20.00" D koordinatları içerisinde yer almaktadır. 13 yaşındaki Fercal ve 140 Ru anaçları üzerine aşılı Cabernet Franc üzüm çeşidi asmaları kullanılmıştır. Bağ; 2,1 m X 1,0 m sıra arası ve sıra üzeri mesafede dikilmiş, gövde yüksekliği 70 cm, Espalye sisteminde tek kollu Kordon Royat terbiye şeklindedir ve K-G doğrultuda dikilmiştir. Bağ parselinin rakımı en yüksek 327 m ile en düşük 309 m arasındadır. Bu araştırmada; anaç, konum, salkım seyreltme uygulamalarının salkım özellikleri üzerine etkileri belirlenmiştir. Tekirdağ ili Şarköy ilçesi koşullarında Cabernet Franc üzüm çeşidinde Fercal anacından salkımdaki tane sayısı dışındaki salkım özellikleri bakımından düşük değerler alınmıştır. Eğimdeki konum açısından da “Üst” konumu salkımdaki tane sayısı bakımından yüksek değer verirken, diğer tüm kriterlerde düşürücü etki göstermiştir. Bu nedenle eğimli bağlarda Cabernet Franc/Fercal kombinasyonu, düşük salkım eni, salkım boyu, salkım ağırlığı, salkım hacmi ve salkım sıklığı istendiğinde “Üst” konumunun tercih edilebileceği ve verim düşüklüğüne yol açmamak için salkım seyreltilmemesi önerilebilir bulunmuştur.
Considerations for a historical understanding of the treasure of Nagyszentmiklós
Authors: Vékony Gábor
Published: October 2022

We would better understand the historical background of the Nagyszentmiklós treasure if the Greek inscriptions on cups No. 9 and 10 could be related to historical events. The most promising solution so far is that of Géza Fehér, while the more recognised solution of Minns should be rejected, because he did not realise the contractio AE = ἅ(γι)ε. Fehér’s solution, on the other hand, is probable at least regarding the section which ends with ἅ(γι)ε ’I(η)σ(οῦ), but we would expect a subsequent name (that he misinterpreted). The correct name is ’Aχτο(νο)ν (in Hungarian: Ajtony) preceded by a baptismal name, which seems to be ’H(ωανν)οῦ that also fits the historical context. In all probability, cup No. 10 must be related to the baptism of Duke Ajtony in the 10th century.
Benedek Illyés, the graffiti vandal who damaged a historic monument (15th century?)
Authors: Fehér Bence
Published: October 2022

A significant portion of the Szekler runiform church inscriptions must be classified as hic fuit inscriptions, that is, graffiti by visitors. Such an example is the inscription on the lower edge of the outer wall fresco of the Unitarian church of Sepsikilyén, which was inscribed among several Latin hic fuit graffiti. This inscription can be divided into a Latin part in fraktur letters and a Hungarian part in runiform script: Scribsit (!) BNDK2 I[[L]]`Ly´ES. The Latin word and the orthographic emendation show that the author, named Benedek Illyés, was a man of higher education than the average: a fact which is also justified in several other inscriptions. This graffito probably erased the signo of the painters, but nevertheless belongs to a layer older than the later graffiti in capital letters and must therefore date to the 2nd part of the 15th century or to the beginning of the 16th century.
effect of back massage using Frangipani aromatherapy on interleukin-6 (IL-6) levels and pain labor intensity
Authors: Budiani Ni Nyoman , Somoyani Ni Ketut
Published: October 2022

Childbirth is one of the female reproductive cycles. Spontaneous labor is characterized by uterine contractions which are manifested by complaints of pain. Labor pain in response to an inflammatory reaction due to strain in the lower uterine segment. The purpose of this study was to prove the effect of back massage using Frangipani aromatherapy oil on IL-6 levels and pain labor  intensity. Methods: True Experiment (Randomized Clinical Trial / RCT) with a pretest posttest control group design. The research was conducted in inpatient community Health centers Badung Regency and Denpasar City. Research subjects were nulliparous, cervical opening of 6-8 cm. The sample size is 90 people, the number of samples is 3, namely the control group (C) there is no treatment, the positive control (CP) gets a back massage using original VCO oil; The intervention group (I) received a back massage using Frangipani aromatherapy oil. Simple random sampling was the sampling technic.  Data analysis used computer. Results: mean pain intensity and IL-6 levels before treatment in the three groups obtained p> ​​0.05.
contribution degree of EFL education supervisors in developing EFL Kuwaiti teachers' professional performance according to the EFL Kuwaiti teachers’ perspectives
Authors: Fraihat Eman , Alazemi Asmaa Falah Theyab , Fraihat Bassmah Ozbi
Published: October 2022

This study aimed at evaluating the contribution of the EFL education supervisors in developing EFL Kuwaiti teachers' professional performance according to the EFL Kuwaiti  teachers' perspectives. To achieve the purpose of the study, a five - point Likert Scale questionnaire was designed. The questionnaire consisted of (20) items. The (20) items are classified into four domains: teaching and learning process, assessing the learning process, subject, and learning environment. The findings revealed that that the contribution degree of the EFL education supervisors in developing EFL Kuwaiti teachers' professional performance according to the EFL Kuwaiti teachers' perspectives is low. Accordingly, the study put forth several recommendations.
Numerical radius points of ${\mathcal L}(^m l_{\infty}^n:l_{\infty}^n)$
Authors: Kim Sung Guen
Published: October 2022

For $n\geq 2$ and a real Banach space $E,$ ${\mathcal L}(^n E:E)$ denotes the space of all continuous $n$-linear mappings from $E$ to itself.Let $$\Pi(E)=\Big\{~[x^*, (x_1, \ldots, x_n)]: x^{*}(x_j)=\|x^{*}\|=\|x_j\|=1~\mbox{for}~{j=1, \ldots, n}~\Big\}.$$For $T\in {\mathcal L}(^n E:E),$ we define $${\rm Nrad}({T})=\Big\{~[x^*, (x_1, \ldots, x_n)]\in \Pi(E): |x^{*}(T(x_1, \ldots, x_n))|=v(T)~\Big\},$$where $v(T)$ denotes the numerical radius of $T$.$T$ is called {\em numerical radius peak mapping} if there is $[x^{*}, (x_1, \ldots, x_n)]\in \Pi(E)$ that satisfies ${\rm Nrad}({T})=\Big\{~\pm [x^{*}, (x_1, \ldots, x_n)]~\Big\}.$
In this paper we classify ${\rm Nrad}({T})$ for every $T\in {\mathcal L}(^2 l_{\infty}^2: l_{\infty}^2)$ in connection with the set of the norm attaining points of $T$.We also characterize all numerical radius peak mappings in ${\mathcalL}(^m l_{\infty}^n:l_{\infty}^n)$ for $n, m\geq 2,$ where $l_{\infty}^n=\mathbb{R}^n$ with the supremum norm.
Equation discovery from data: promise and pitfalls, from rabbits to Mars
Authors: Donovan Graham , Su Qing
Published: October 2022

The problem of equation discovery seeks to reconstruct the underlying dynamics of a time-varying system from observations of the system, and moreover to do so in an instructive way such that we may understand these underlying dynamics from the reconstruction.This article illustrates one type of modern equation discovery method (sparse identification of nonlinear dynamics, or SINDy) in the context of two classic problems. The presentation is in a tutorial style intended to be accessible to students, and could form a useful module in undergraduate or graduate courses in modelling, data analysis, or numerical methods. In this style we explore the strengths and limitations of these methods. We also demonstrate, through use of a carefully constructed example, a new result about the relationship between the reconstructed and true models when a na\"ive polynomial basis is used.
Exact value of integrals involving product of sine or cosine function
Authors: Boonklurb Ratinan , Laoharenoo Atiratch
Published: October 2022

By considering the number of all choices of signs $+$ and $-$ such that $\pm \alpha_1 \pm \alpha_2 \pm \alpha_3 \cdots \pm \alpha_n = 0$ and the number of sign $-$ appeared therein, this paper can give the exact value of $\int_{0}^{2\pi} \prod_{k=1}^{n} \sin (\alpha_k x) dx$. In addition, without using the Fourier transformation technique, we can also find the exact value of $\int_{0}^{\infty}\frac{(\cos\alpha x - \cos\beta x)^p}{x^q} dx$. These two integrals are motivated by the work of Andrican and Bragdasar in 2021, Andria and Tomescu in 2002, and Borwein and Borwein in 2001, respectively.
Phytochemicals in medicine: Cellular mechanism
Authors: Siravit Sitprija  , Visith Sitprija
Published: October 2022

Phytochemicals are basic substances in plants commonly used in traditional medicine. Understanding their mechanisms of action on cellular function is fundamental in pharmacophysiology. This review highlights the effects of phytochemicals starting from the membrane receptors, ion channels and signal transduction leading to function. It is another view of phytochemicals in physiology for easy understanding. Limitation and pitfall are discussed.
Serum transformation growth factor β1 levels in nephropathy diabetic patients attending specialist hospital and Usmanu Danfodiyo University Teaching Hospital Sokoto, Nigeria
Authors: Yeldu MH  , Abbas AY  , Makusidi MA  , Jidda ML  , Ngaski AA  , Dallatu MK  , Bunza JM  , Ibrahim KK
Published: October 2022

Introduction: Diabetic nephropathy is among the major causes of mortality and morbidity in type 1 & type 2 diabetes and is strongly associated with cardiovascular disease outcomes. Higher blood pressure and poor glycaemic control were reported to be the most common risk factors influencing the progress of diabetic nephropathy. This study was designed to determine the diagnostic and prognostic potential of the serum transformation growth factor β1 [TGF β1] in normoalbuminuric, microalbuminuric, macroalbuminuric and end-stage renal disease type 2 diabetic nephropathy patients. Materials and Methods: The transformation growth factor β1 was measured using ELISA test kits and serum creatinine was assessed by the modified Jaffe method while estimated glomerular filtration rate [EGFR] in the study was evaluated by the MDRD equation (adjusted for four variables). Results: The levels of serum transformation growth factor β1 and urine albumin/creatinine ratio were significantly increased (p < 0.05) across the diabetes nephropathy stages, while the estimated glomerular filtration rate was progressively decreased (p < 0.05). Serum creatinine was significantly increased (p < 0.05) with the progression of diabetic nephropathy. Conclusion: Transformation growth factor β1 might have the potentials to be used as a diagnostic and prognostic marker for diabetic nephropathy.
Some Thoughts on Doctoral Supervision
Authors: Li Li
Published: October 2022

This reflective account discusses the cultural and emotional forces underneath supervisor-supervisee relation in doctoral supervision. It highlights the dynamics and challenges in forming a good relationship which can support doctoral students. Questions were raised about the power balance between the parties, gratitude embedded in this relationship, and the extent to which emotional transition is possible in doctoral supervision. The essay concludes that doctoral supervision is a long and endless learning process that takes us from one stop to the next.
Characterization of Halophilic Bacteria Isolated from Khewra Salt Mines
Authors: Laraib Fizza , Rauf Rahmeen , Dilshad Rimsha , Jameel Nazia , Batool Rida
Published: October 2022

Halophilic bacteria can populate every niche of earth. These halophiles have a great potential of exopolysaccharides production that is of considerable importance in various industries. To screen EPS producing halophiles, saline soil samples were collected from Khewra salt mines, Jehlum, Pakistan. Twenty-two morphologically different bacterial strains were isolated by serial dilution method. All strains were considered as moderate halophilic bacteria as they could grow at 3-15% of NaCl concentration whereas only three strains could grow at 15% of NaCl, which belonged to the genus Bacillus and Pseudomonas. For screening of EPS production, P-medium was used. While for the estimation of slime production, congo-red agar was used that exhibited positive results by appearance of black colored colonies by many strains. Moreover, EPS production was analyzed quantitatively and qualitatively. Isolated Staphylococcus and Bacillus species produced high amount of EPS (20g/L). “Moderate halophiles” play an important role in therapeutics, bioremediation, food and medicine, petroleum and tanning industries by producing EPS. Recently, growth of many agriculture crops has been improved by using beneficial halophiles in saline soils. Consequently, with the help of these beneficial halophiles we can give benefit to mankind
Metode Dakwah Dr. KH. Asep Saifuddin Chalim, MA di Pondok Pesantren Amanatul Ummah Pacet-Mojokerto
Authors: Reni Puspita Yanti  , Bunyamin
Published: October 2022

In implementing the da'wah method in an Islamic educational institution such as the Islamic boarding school the figure of a cleric is an important role holder in determining success. A Kiai or leader of a boarding school is required to have the ability and intelligence in his role as a preacher so that the message of preaching is conveyed to the mad’ū effectively and efficiently and on target. Therefore researchers interested in conducting research on the Da'wah Method Dr. KH. Asep Saifuddin Chalim, MA. Based on the statement above, a question arises. How is the concept of Dr. dawah's method KH. Asep Saifuddin Chalim, MA? How is the application of the propaganda method Dr. KH. Asep Saifuddin Chalim, MA? And what obstacles are faced in applying the method of da'wah. In this study the authors used a qualitative method, with data analysis using symbolic interaction theory. And data collection techniques using analytic descriptive techniques, namely data collected in the form of words, images, documentation and not numbers. Obtained from the results of observation, in-depth interviews with sources and documentation that will produce interpretation for the author. According to the author's analysis, the da'wah method Dr. KH. Asep Saifuddin Chalim, MA in the Islamic Boarding School of Amanatul Ummah Pacet-Mojokerto through observation and research, the writer can conclude, that with morals and religious knowledge as well as always istiqomah in carrying out the practices of the Sunnah and always remembering the seven keys to success, all those dreamed of will be achieved mind.
The Capital Structure through the Modigliani and Miller Model
Authors: Giglio Ferdinando
Published: October 2022

The Modigliani-Miller theorem is not only his most important contribution to the theory of finance, but it is one of the most important results in the last half century of evolution of the financial economy, which among other things has certainly not been poor in contributions. important.

The Modigliani-Miller theorem concerns the financing choices of firms, and in particular the choice between debt and shares. It identifies the conditions under which the choice of issuing debt or shares to finance a given level of investments does not affect the value of companies, and therefore in which there is no optimal level of debt compared to the companies' own means. Therefore, it belongs to a class of surprising theorems of "neutrality" or "indifference" that exist in economics: these are theorems that show the irrelevance of a choice that at first sight would seem very important, such as that on the degree of debt of firms. Other theorems were developed after this: Trade-off, Pricing order and Market Timing.
Penggunaan Media Komunikasi Smartphone dalam Kegiatan Belajar Mengajar Mahasiswa FIKOM UBHARA Jaya di Masa Pandemi
Authors: Annisa Eka Syafrina  , Genta Nurfajri
Published: October 2022

Pandemi Covid-19 membuat sistem pendidikan di Indonesia berubah secara menyeluruh. Kebijakan social distancing yang di keluarkan oleh Pemerintah membuat proses belajar mengajar dilakukan secara daring. Tentunya seluruh elemen pendidikan dituntut untuk beradaptasi dengan kondisi tersebut, tak terkecuali mahasiswa Fakultas Ilmu Komunikasi Universitas Bhayangkara Jakarta Raya. Penelitian ini bertujuan untuk mengetahui bagaimana penggunaan media komunikasi smartphone dalam kegiatan belajar mengajar pada masa pandemi di kalangan mahasiswa Fakultas Ilmu Komunikasi Universitas Bhayangkara Jakarta Raya. Dengan menggunakan metode penelitian kualitatif dengan jenis deskriptif, peneliti melakukan wawancara kepada infroman yang terkait dengan penelitian. Hasil penelitian menunjukkan bahwa penggunaan smartphone pada kalangan mahasiswa Fakultas Ilmu Komunikasi Universitas Bhayangkara Jakarta Raya adalah untuk memenuhi kebutuhan mereka masing-masing. Penggunaan smartphone pada pembelajaran di kalangan mahasiswa Fakultas Ilmu Komunikasi Bhayangkara Jakarta Raya ialah untuk mendapatkan informasi seputar perkuliahan, seperti tugas baru, jadwal perkuliahan. Sebagai pengguna, mahasiswa dapat merasakan kelebihan dan kekurangan dalam penggunaan smartphone. Selain itu, mahasiswa juga merasakan dampak penggunaan smartphone secara langsung baik dampak positif maupun negatif.
Literasi Digital Informasi Dikalangan Guru Mojokerto
Authors: Suryani Cahya , Wiryadigda Puradian
Published: October 2022

Pandemi Covid-19 memaksa setiap lini beradaptasi dengan menggunakan media digital. Masyarakat yang pada awalnya belum akrab dengan media digital seakan dipaksa untuk menggunakannya. Setiap aktivitas dilakukan menggunakan media digital, namun karena keadaan membuat sebagian besar individu mengalami kebingungan untuk mengakses media tersebut. Literasi digital untuk masyarakat perlu dilakukan, terutama bagi guru-guru yang merupakan sosok yang ditiru dan dipandang oleh siswa dan lingkungannya. Pendampingan dan pelatihan literasi digital khususnya digital informasi perlu dilakukan agar guru-guru dapat melakukan pendampingan proses belajar mengajar dengan baik pada siswa dan lingkungannya. Tujuan kegiatan pengabdian ini meliputi kegiatan mengenalkan proses berpikir kritis dan memberikan pengetahuan mengenai langkah-langkah mengakses informasi  dan memberikan stimulus guru-guru untuk cerdas menggunakan media digital. Metode yang digunakan dalam proses pendampingan adalah melalui webinar dan diskusi. Sasaran kegiatan adalah Guru SMP dan SMA di Mojokerto. Hasil dari kegiatan adalah guru-guru semakin mengerti penggunaan media digital yang cerdas dan memahami mengenai literasi digital informasi.
Strategi Pemasaran Destinasi Wiasata Arung Jeram Ranau Desa Rantau Nipis Kec.Banding Agung Oku Selatan
Authors: Afta Afta Apriansyah , Renaldi Muhammad , Hari Pratama Mardian , Misnawati Desy
Published: October 2022

Penelitian ini bertujuan mengetahui Strategi Pemasaran Destinasi Wisata Arung Jeram Desa Rantau Nipis. Metode yang digunakan dalam penelitian ini ialah metode deskriptif kualitatif yaitu prosesnya dengan memilih objek penelitian lalu dilanjutkan dengan perumusan masalahan dan mengajukan beberapa pertanyaan yang berhubungan dengan suatu penelitian, lalu mengumpulkan data-data yang berkaitan dengan perumusan masalah. Beberapa teknik yng di gunakan untuk pengumpulan data adalah observasi, wawancara, dan dokumentasi. Hal yang harus dilakukan dalam pemasaran Destinasi Wisata Arung jeram ini menggunakan strategi pemasaran melalui media sosial dengan cara memposting kegiatan arung jeram di sosial media.
Design And Verification Of Advanced Peripheral Bus Protocol Using Uvm
Authors: Yammanuru Pavani , Reddy M.Amarnatha
Published: October 2022

The System on chip uses advanced micro controller bus architecture is on chip bus introduced by ARM. Advanced peripheral bus is the component of the AMBA bus architecture. APB is low bandwidth, low power and low performance it used to connect the peripherals like UART, Keypad, Timer and other peripheral devices to the bus architecture. This introduces the AMBA APB bus using UVM architecture design. The design created using the Verilog and HDL and tested by Verilog test bench and design is verified using universal verification methodology. In this, we have a master and a slave. The master sends the control signals as a packet to the slave and the slave addresses the packet if both are equal we are getting transaction of write and read data, Where the master send the address slave recognize and it sends the signal to the master as a read data.
Artificial Intelligence and Deep Learning Applications: A Review
Authors: Ramachandran G. , Kannan S.
Published: October 2022

Deep Learning, a buzz in the artificial intelligence field, is the subset of machine learning. It teaches computers to learn from examples in order to perform a task that is intuitive to humans. It is also known as a deep neural network or deep neural learning. In deep learning, neural networks have a significant role. These are a set of algorithms that we implement to identify relevant relationships in datasets, and they follow the process that imitates the human brain. Neural networks depict the behavior of the human brain and enable computer algorithms to identify trends. It also solves complex problems in the domain of machine learning, AI, and data science.Deep learning deploys artificial neural networks to recognize the hidden patterns of data in the dataset provided. These algorithms are trained over an adequate amount of time and applied to a data set.
Classroom Crisis in Higher Institutions of Learning under the New Normal: Administrative Coping Strategies
Authors: Musa Abubakar , Kwashabawa Bala Bakwai
Published: October 2022

Educational institutions globally have suffered setback as a result of the COVID 19 pandemic which led to closure of schools for almost a year. This paper examined classroom crisis in higher institutions of learning under the new normal: administrative coping strategies. Secondary data were used to support the points raised in the paper. The data were sourced from print materials and online publications by recognized institutions and individual authors. The paper identified difficulty in the coverage of syllabus, poor knowledge of information and communication technology (ICT), cancelations of conferences, poor network service, inadequate ICT facilities, expensive data coupled with economic hardship, difficulty in social distance observation, pressure from school management, high rate of drop out and increased in workload as challenges facing higher educational institutions under the new normal. It was also identified that online academic activities, blended learning approach, arrangement of extra classes, running of parallel session and adjustment of academic calendar are some of the administrative strategies employed by schools. It was suggested that schools should provide ICT training for both staff and students, provide adequate ICT facilities, ensure stable electricity supply, amongst others.
Application of Stem in the Mastery of Mathematics Learning In Primary School
Authors: Subramaniam Mariyamma A/P
Published: October 2022

Science, Technology, Engineering and Mathematics (STEM) is an important agenda in the Malaysian Education Development Plan (PPPM) 2013-2025. Mathematics teachers play an important role in teaching and learning in the classroom. This study is a needs analysis study in the first phase of Design and Development Research (DDR). The purpose of this need's analysis study is to identify the need for the development of STEM application models in Mathematics mastery in primary schools. The study was conducted qualitatively using the interview method. Informants such as mathematicians, STEM experts, model development experts and primary school mathematics resource teachers were interviewed. All these experts were selected by purposive sampling and met the set criteria. Interview data were analyzed using thematic techniques, namely transcription, coding and themes verbatim. The findings of this study indicate that there is a need for researchers to develop STEM application models in mathematics mastery. Therefore, researchers suggest that further research is needed to make a study to discuss the impact and importance of STEM applications in mathematics learning mastery in primary schools.
Prototype of Monitoring System and Automation Regulator Sound, Temperature, Humidity, Lighting, Window at the Swiftlet House (RBW Smart System) Based on Webserver
Authors: Usmanto Budi , Dewi Novi Ayu Kristiana
Published: October 2022

Swiftlet nest is one of the export commodities with high economic value. The benefits of swiftlet nest are believed to be efficacious in curing several diseases. It makes the swiftlet nest in the market sold at a very high price. The potential of Indonesian swiftlet nests is quite significant, reaching 1.155 tons with a value of more than 28 trillion rupiahs per year in 2019 and increasing yearly. Swiftlets live in a calm atmosphere. If the place where they live is felt to be no longer safe and comfortable, then as a colony, the swallow will move to find another location that is felt calmer. The swiftlet house is attempted to be similarly possible to the condition of the cave in nature, so the swallow wants to live in it. Swiftlet farmers' efforts are made to make swiftlet feel at home and comfortable staying in their RBW (Rumah Burung Walet is a swiftle house in Indonesian) buildings. However, these efforts often experience problems because no integrated system regulates and monitors RBW buildings to match their natural habitat. The system currently in circulation is still partial, only dealing with specific problems. For example, only adjusting temperature and humidity, only adjusting automatic window opening and closing to prevent predators from entering and automation of expensive swallow call sounds, limited features and frequent errors, lighting, and monitoring of the swallow swiftlet house via video cam. Based on various problems in the swiftlet house, the researchers made an integrated technological engineering prototyping with its operation. So that swallow farmers can utilize in the hope of producing a more effective and efficient technology than partial tools that have not answered their needs. The prototyping system is named "RBW Smart System." It can be used to monitor and automatically regulate sound, temperature, humidity, and lighting, and open and close the windows in the swallow house so that it is expected to improve the quality and quantity of swiftlet nests for their owners.
Vaststellen en toerekenen van goodwill bij franchise
Authors: Hafez Y.
Published: October 2022

Vaststellen en toerekenen van goodwill bij franchise

Volgens artikel 7:920 lid 1 BW moeten franchiseovereenkomsten een goodwillregeling bevatten. In deze bijdrage wordt ingegaan op de vraag waaraan zo’n regeling moet voldoen, en wat rechtens is indien partijen geen regeling treffen, dan wel een regeling treffen die nietig is.
Empirical Study of Hate Speech in Social Media During COVID-19 Crisis in the United States
Authors: Wen Chenghan , Alnuhait Deema , Liu Shanghu , Zhou Wenda , Zhang Jun
Published: October 2022

As the COVID-19 outbreak, hate speech on social media towards Chinese and other Asian groups has encouraged "Sinophobia". To capture the situation of hate speech on Twitter, we hydrated the tweets discussing COVID-19, written in English language and have location within the USA. These tweets hydrated from Twitter API in span of 5 months (153 days). We have obtained 543,943 tweets in which we identify 40,579 Hate Speech occurrences. We categorized and analyzed them according to Pysentimiento model which is based on BERT models and, Latent Dirichlet Allocation Model (LDA). The results indicate that there are substantial associations between the increased amount of hate speech and the increased rate of deaths due to COVID-19,increased rate of new COVID-19 cases, and negative tests rate.