bluuebunny/crossref_metadata_2025_split huggingface dataset:
Non-contact model test and numerical simulation of plastic zone in sandy soil foundation
Authors: Liu Xiaohong , Liu Yuchen , Zeng Yongqing , Liu Sanxian , Wang Yuxin , Zhang Yinghuan 
Published: August 2023

Reasonable determination of the ultimate bearing capacity of the foundation is of great significance in engineering applications. Based on the self-developed non-contact testing device for the plastic zone of shallow foundation, this paper carries out model test research on the plastic zone of sandy soil shallow foundation and analyzes the development law of plastic zone under the action of foundation load. The main advantages and functional characteristics of the foundation plastic zone test system are that it can realize the non-contact test of displacement deformation of soil, the dynamic development process of shear deformation, and the plastic zone of model foundation can be obtained intuitively. The development process, morphological boundary characteristics, and foundation failure mode of the plastic zone of the sand foundation are obtained. The plastic zone of the foundation starts from the edges of both sides of the bearing plate; with the increase of the load, the plastic zone gradually develops downward and approaches to the center line, and finally crosses through at the bottom until the local shear failure of the foundation occurs. The measured plastic zone is a symmetrical spindle shape with thin ends and a bulge in the middle; the sand on both sides of the bearing plate partially bulges, forming a “V” shaped shear failure zone, and the bottom of bearing plate forms a triangular compression zone, the foundation failure mode of sandy soil represents a typical punching shear failure mode. In order to study the distribution characteristics of the plastic zone range of foundation under different foundation loads and foundation widths, the Universal Distinct Element Code (UDEC) based on the discrete element method is used for numerical simulation research. By conducting parameterized numerical simulation test for the plastic zone of foundation and analyzing the results, with the changes in the foundation load and the foundation width, the variation law of (1) the depth of the plastic zone on the foundation bottom, (2) the width of the plastic zone on both sides of the foundation, (3) the ratio for the depth of plastic zone to the width of foundation, (4) the ratio for the width of plastic zone to the width of foundation and (5) the ratio for the width of plastic zone to the depth of plastic zone is obtained. The research has significant guiding significance for the study of the development law of plastic zone and foundation design.
Fenton and solar Fenton processes: inexpensive green technologies for the decontamination of wastewater from toxic Rhodamine B dye pollutant
Authors: Gayathri Padinchare Veettil , Joseph Shijo , Yesodharan Suguna , Yesodharan E. P. 
Published: August 2023

Abstract

Advanced oxidation processes (AOPs) are projected as relatively cleaner technologies for the abatement of water pollution. This paper investigates the Fenton process as a potential tool for the degradation and eventual mineralization of a textile dye, Rhodamine B (RhB), in water. The effects of activation sources such as microwave (MW), ultrasound (US), and solar energy (SL) on the efficiency of the process were tested. Solar and solar catalytic Fenton processes are identified as the best processes and accordingly, relevant reaction parameters are identified and optimized. The optimum ratio of Fe2+:H2O2 obtained is 1:3 at 15 mg/l of RhB concentration and at pH 3–3.5, showing a degradation efficiency of 47% within 30 min of solar irradiation. ZnO enhanced solar Fenton mineralization of RhB. Persulfate (PS) enhances degradation moderately. The study demonstrated the potential of recycling Fe2+ by periodic replenishment of H2O2. Major reaction intermediates formed were identified by the LC-MS method. Photoluminescence (PL) spectral studies showed a progressive increase in •OH radical formation during solar irradiation. The study has proven that solar Fenton and solar catalytic Fenton processes are efficient AOPs for the complete mineralization of RhB and thus present an economic and environment-friendly technology to remove recalcitrant RhB pollutants from water.
The risk of bacterial virulence in the face of concentrated river pollution
Authors: Al Haj Ishak Al Ali Roukaya , Mondamert Leslie , Crepin Alexandre , Al Badany Maha , Jandry Joelle , Berjeaud Jean-Marc , Labanowski Jerome 
Published: August 2023

Abstract
The decrease in low-water flows and the increase in water temperature and other parameters as observed in the rivers over the last 50 years suggest that a concentration of compounds and pollutants is taking place, in connection with climate change and/or anthropisation (without discerning their respective contributions). These effects occur in a context where the rivers are already impacted by the presence of many pollutant cocktails (pesticides, drugs, and others). The authors now show that these pollutant cocktails – at the environmental concentrations currently found – constitute a threat to human health through their possible effects on the virulence of pathogenic bacteria. While certain genes of Salmonella Typhimurium may not experience an increased risk, the exposure to more concentrated cocktails (at a five-fold concentration) could potentially amplify certain virulent factors such as the motility of Pseudomonas aeruginosa H103. The findings indicate that pollution mixtures have an effect on the virulence potential of certain waterborne pathogenic bacteria, even at concentrations currently observed in rivers.
Simple Synthesis of [18F] AV-45 and its Clinical Application in the Diagnosis of Alzheimer's Disease
Authors: Zhang Qi-Zhou , Yilihamu Nazi , Li Yu-Bin , Li Xiao-Hong , Qin Yong-De 
Published: August 2023

Objective:[18F] AV-45 can be produced in a simple, stable, and repeatable manner on the Tracerlab FXF-N platform using a self-editing synthetic procedure and solid-phase extraction purification method. This technique is applied to positron emission tomography (PET) imaging of Alzheimer's disease (AD) to observe its distribution and characteristics in various brain regions and its diagnostic efficiency for the disease.Methods:The precursor was subjected to nucleophilic radiofluorination at 120 °C in anhydrous dimethyl sulfoxide, followed by acid hydrolysis of the protecting groups. The neutralized reaction mixture was purified by solid phase extraction to obtain a relatively pure [18F] AV-45 product with a high specific activity. A total of 10 participants who were diagnosed with Alzheimer's disease (AD group) and 10 healthy controls (HC group) were included retrospectively. All of them underwent [18F] AV-45 brain PET/CT imaging. The distribution of [18F] AV-45 in the AD group was analyzed visually and semi-quantitatively.Results:Six consecutive radiochemical syntheses were performed in this experiment. The average production time of [18F] AV-45 was 52 minutes, the radiochemical yield was 14.2 % ± 2.7% (n = 6), and the radiochemical purity was greater than 95%. When used with PET/CT imaging, the results of the visual analysis indicated increased [18F] AV-45 radioactivity uptake in the frontal, temporal, and parietal lobes in AD patients. Semiquantitative analysis showed the highest diagnostic efficacy in the posterior cingulate gyrus compared with other brain regions (P < 0.001).Conclusion:Intravenous [18F] AV-45 was successfully prepared on the Tracerlab FXF-N platform by solid-phase extraction of crude product and automated radiochemical synthesis. PET/CT imaging can be used to diagnose and evaluate AD patients and provide a more robust basis for clinicians to diagnose AD.
PGD2/PTGDR2 Signal Affects the Viability, Invasion, Apoptosis, and
Stemness of Gastric Cancer Stem Cells and Prevents the Progression of
Gastric Cancer
Authors: Zhang Qiang , Wang Feifan , Huang Yan , Gao Peiyao , Wang Na , Tian Hengjin , Chen Amin , Li Yuyun , Wang Fengchao 
Published: August 2023

Background:
Prostaglandin D2 (PGD2) has been shown to restrict the occurrence and
development of multiple cancers; nevertheless, its underlying molecular mechanism has not been
fully elucidated. The present study investigated the effect of PGD2 on the biological function of
the enriched gastric cancer stem cells (GCSCs), as well as its underlying molecular mechanism, to
provide a theoretical basis and potential therapeutic drugs for gastric cancer (GC) treatment.

Methods:
The plasma PGD2 levels were detected by Enzyme-linked immunosorbent assay (ELISA).
Silencing of lipocalin prostaglandin D synthetases (L-PTGDS) and prostaglandin D2 receptor 2
(PTGDR2) was carried out in GCSCs from SGC-7901 and HGC-27 cell lines. Cell Counting Kit-8,
transwell, flow cytometry, and western blotting assays were used to determine cell viability, invasion,
apoptosis, and stemness of GCSCs. In vivo xenograft models were used to assess tumor growth.

Results:
Clinically, it was found that the plasma PGD2 level decreased significantly in patients
with GC. PGD2 suppressed viability, invasion, and stemness and increased the apoptosis of
GCSCs. Downregulating L-PTGDS and PTGDR2 promoted viability, invasion, and stemness and
reduced the apoptosis of GCSCs. Moreover, the inhibition of GCSCs induced by PGD2 was eliminated
by downregulating the expression of PTGDR2. The results of in vivo experiments were consistent
with those of in vitro experiments.

Conclusion:
Our data suggest that PGD2 may be an important marker and potential therapeutic
target in the clinical management of GC. L-PTGDS/PTGDR2 may be one of the critical targets for
GC therapy. The PGD2/PTGDR2 signal affects the viability, invasion, apoptosis, and stemness of
GCSCs and prevents the progression of GC.
Contrast-enhanced Chest Ultrasound in the Control of Transthoracic Tru-cut
Needle Biopsies: A Case Report
Authors: Mihalova Teodora , Mekov Evgeni , Yamakova Yordanka , Slavova Yanina , Petkov Rosen 
Published: August 2023

Introduction:
The current article presents a clinical case of ultrasound controlled transthoracic tru-cut needle biopsy of a small metastatic lesion in the left lung, performed with contrast-enhanced ultrasonography (CEUS). The following case demonstrates a real-time interventional manipulation of a very small lesion, which was done under local anesthesia, with a minimal invasion to the patient.

Case presentation:
A 72-year-old woman is presented, hospitalized for a left-sided pleural effusion with bilateral, multiple nodulеs of different sizes in the lungs. Thoracentesis revealed data for atypical cells in the pleural fluid. The CT scan suspected a probable neoplastic process, but the subsequently performed fiberbronchoscopy couldn’t prove the existence of the same. The final diagnosis was established after ultrasound controlled transthoracic tru-cut needle biopsy of a pulmonary lesion with the application of a contrast medium.

Conclusion:
The CEUS allows precise detection of the metastatic area because of its unique perfusion characteristics and ability to remain hypocontrasted after the application of the contrast medium sulfur hexafluoride. The persistence of a concomitant left-sided pleural effusion is used as an ultrasound window during the performance of the manipulation, with the successful verification of the pathology as primary pulmonary adenocarcinoma. By the application of this minimally invasive manipulation, an accurate final histological result was obtained.
Clinical Application of Ultrasound Elastic Imaging in Assessing Poststroke
Complex Regional Pain Syndrome (CRPS)
Authors: Gao Min , Gao Zhenwu , Li Yingchun , Zeng Bo , Liang Ying 
Published: August 2023

Aims:
This study aimed to explore the characteristics and clinical application of ultrasonic elastography in peripheral soft tissue in patients with poststroke complex regional pain syndrome (CRPS).

Background:
Complex regional pain syndrome (CRPS) type I is also known as shoulder hand syndrome (SHS). Its main symptoms include shoulder pain, limited activity, upper arm, wrist, and knuckle joint pain. Ultrasonic elastic imaging technology is gradually being applied to musculoskeletal system evaluation, primarily for the elastic examination of superficial tissue, as a result of the continual advancements in ultrasound technology. To make up for the absence of conventional imaging, functional state evaluation of the motor system can offer conventional ultrasonic tissue elasticity and hardness data.

Objectives:
The purpose of this study was to objectively quantify the soft tissue surrounding the shoulder joint of stroke patients with CRPS using ultrasonic elastic imaging and to determine the diagnostic usefulness of ultrasonic elastic imaging for CRPS in stroke in order to promote its usage in clinical practice.

Materials and Methods:
Patients diagnosed with CRPS following a stroke and admitted to the rehabilitation unit at Shanxi Bethune Hospital between January, 2021 to June, 2021 were included in the analysis. The control group consisted of people without pain in their shoulder joints. Each group consisted of 30 patients. A high-frequency wire array probe (frequency = 8-16 Hz) was employed in conjunction with an ultrasonic diagnostic apparatus. A quantitative analytic system determined Young's modulus of the tissue, while the tracking of the shear wave provided an elastin map in real-time. An excitation pulse of acoustic radiation force was used to cause shear waves in the tissue.

Results:
The Young's modulus of supraspinatus muscle in the study and control groups was 289.16±22.07 Kpa and 231.99±23.61 Kpa, respectively (P <0.01). Young's modulus values of the study group's subscapular biceps were compared to those of the control group (P > 0.05). The supraspinatus shear wave elastographic (SWE) imaging value was 10.01±0.49 m/s in the study group and 7.92±0.50 in the control group (P <0.05). The study and control groups had subscapular muscle SWE values of 15.99±1.95 and 8.64±0.56 m/s, respectively (P <0.05). The average biceps tendon SWE value in the study and control groups was 6.39±0.42 and 4.69±0.36 m/s, respectively (P <0.05).

Conclusion:
In conclusion, the SWE assessed by ultrasound elastography is useful for early diagnosis and evaluation of the superior shoulder tendon, subscapular tendon, and biceps tendon of CRPS following stroke.
A Virtual Resistance Optimization Method Based on Hybrid Index in
Low-voltage Microgrid
Authors: Yin Yifei 
Published: August 2023

Introduction:
The introduction of virtual resistance can effectively suppress the circulating
current between micro-sources and improve power allocation in low-voltage microgrid,
but it also causes the voltage deviation of micro-sources’ inverters. An optimization method of
virtual resistance based on hybrid index is proposed in order to suppress circulating current and
improve voltage deviation at the same time in this paper. The gradient descent method is used to
design the virtual resistance optimization process, aiming at the optimization of hybrid index
composed of circulating current and voltage deviation. The constraints are deduced with power
quality requirements, capacity limitation and static stability, and then virtual resistance values
are optimized. The effects of switching load and micro-source on the optimization results are
analyzed through the simulation of low-voltage microgrid, and the simulation results show that
the virtual resistance optimization method can significantly suppress circulating current while
improving power quality. When distributed generators are connected to utility grid through inverters
and feeders, differences in feeder parameters and inverter control strategies easily cause
circulating current and uneven power distribution among micro-sources. The introduction of
virtual resistance can effectively suppress the circulating current between micro-sources and
improve power allocation in low-voltage microgrids, but it also causes the voltage deviation of
micro-sources’ inverters. An optimization method of virtual resistance based on hybrid index is
proposed in order to suppress circulating current and improve voltage deviation.

Methods:
The gradient descent method is used to design the virtual resistance optimization process,
aiming at the optimization of hybrid index composed of circulating current and voltage
deviation. The constraints are deduced with power quality requirements, capacity limitation and
static stability, and then virtual resistance values are optimized.

Results:
In the simulation scenario of two micro-sources and three micro-sources, the virtual
resistance obtained by the method proposed in this paper has more obvious improvement on the
system operation index, and is not affected by the load type.

Conclusion:
The method of optimizing virtual resistance based on the hybrid index can achieve
the effect of restraining circulating current and improving power sharing degree on the premise
of guaranteeing power quality and satisfying system stability. The optimization of virtual resistance
is affected by the number of feeders. It is necessary to re-optimize the virtual resistance
after changing the number of feeders, but the process of switching micro-source and adjusting
load does not affect the optimized resistance value.
Anti-spot Effects of Developed Brightening Cream Composed of Three
Active Ingredients (Resorcinol, Arbutin and Licorice Root Extract) in
Comparison with the Hydroquinone Cream
Authors: Eslahi Ehsan , Hashemi Nooshin 
Published: August 2023

Aims:
The aim of this study was to evaluate the brightening effects of a complex composed of Resorcinol, Arbutin, and Licorice root extract (RAL complex) in patients faced with skin spots compared to a potential hydroquinone compound.

Background:
Skin spots are defined as excessive accumulation of melanin pigment in different layers of the skin caused by extravagant sun exposure, pregnancy, and other hormonal and genetic factors. Therefore, it is necessary to use appropriate products to treat these types of spots.

Objective:
To evaluate skin brightness after using the RAL complex, this study was designed in a double-blind randomized trial and the removal of melanin pigment and skin spots was evaluated by different methods.

Methods:
In this study, the brightening cream formulated with actives comprising the RAL complex in 2.1% w/w concentration and a hydroquinone cream was applied in two groups of 20 women with a mean age of 48 years showing the severity scale 3 of skin pigmentation, separately. This study was conducted to evaluate the brightening effect of this complex compared to a hydroquinone compound after 4, 8, and, 12 weeks of application to the entire face.

Results:
The results showed the highest percentage of skin brightness 12 weeks after applying the cream, reported at 93% and 89% for RAL complex and hydroquinone compound, respectively. Skin pigmentation rate was measured before and after applying the RAL complex cream with a mexameter device. The highest amount of dark spot removal was seen after using this cream in different areas of the skin.

Conclusion:
The results showed that the RAL complex was more effective than the hydroquinone compound in removing skin blemishes without any side effects compared to products containing hy-droquinone.
Meditasi Mindfulness: Upaya Mengatasi Kecemasan Pustakawan
Authors: Anjali Muhammad Erdiansyah Cholid , Istiqomah Zeni 
Published: August 2023

Pandemi Covid-19 berdampak pada kesehatan jasmani dan mental masyarakat. Salah satu dampaknya yaitu kecemasan saat mengerjakan aktivitas. Tujuan penelitian ini untuk mengetahui bagaimana kecemasan yang dialami pustakawan dan bagaimana implementasi meditasi Mindfulness sebagai strategi mengelola kecemasan pustakawan Universitas Muhammadiyah Yogyakarta saat pandemi covid-19. Metode penelitian yang digunakan deskriptif kualitatif. Pengumpulan data melalui observasi, wawancara, dan studi dokumentasi. Uji keabsahan data dengan teknik triangulasi sumber. Penyajian data dilakukan dengan cara reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa meditasi Mindfulness dapat diterima baik oleh pustakawan UMY. Pelaksanaan kegiatan meditasi meliputi : membaca doa; mengatur duduk; mengatur nafas dan mulai memejamkan mata; membuang pikiran negatif yang mengganggu; membayangkan suasana tenang; memberikan afirmasi positif; kembali mengatur nafas dan membuka mata; doa. Meditasi Mindfulness berpengaruh meningkatkan self-regulation untuk mengelola kecemasan pustakawan di masa covid-19. Beberapa pustakawan mengalami kecemasan saat bekerja terkait dengan penularan covid-19 dan pemutusan hubungan kerja. Setelah melakukan meditasi Mindfulness pustakawan memiliki kemampuan attention control, emotion regulation, dan self awareness.
Management Accounting—A Rising Star in the Curriculum for a Globally Integrated, Technology-Driven Business Age
Authors: Venkatesh Roopa , Riley Jennifer , Eldridge Susan , Lawson Raef A. , Church Kimberly Swanson 
Published: August 2023

ABSTRACT
Extraordinary technological advances are one of many factors that have altered the topography of the accounting profession and the role of accountants. Management accountants, as strategic partners in decision making, have never been more important in this changing landscape. We argue that the recently introduced CPA Evolution Model Curriculum leaves a serious gap in the accounting curriculum by focusing on entry-level accountants in public practice. In this paper, we explain how management accounting can be a rising star in the accounting curriculum, show why there is a need for it, and recommend a three-course model based on the Institute of Management Accountants Management Accounting Competency Framework. This paper is an appeal to all educational institutions to include the necessary courses in management accounting with an equal sense of urgency as data analytics, technology, and public accounting needs.
Survey of Emerging Blockchain Technologies for Improving the Data Integrity and Auditability of Manufacturing Bills of Materials in Enterprise Resource Planning
Authors: Lambert Sherwood L. , Davidson Bruce I. , LeMay Stephen A. 
Published: August 2023

ABSTRACT
Blockchain and cloud computing continue to emerge and evolve as important technologies for data management. This has strategic implications for data stored in enterprise resource planning (ERP) systems. We use manufacturing bills of materials (MBOMs) as an example of critical data in ERP. MBOMs define the complex product structures of manufacturing enterprises. We survey five alternatives for storing, controlling, and auditing MBOMs in ERP: Oracle Blockchain Table; Oracle Blockchain Platform Enterprise Edition; Microsoft Azure SQL Database Ledger; SAP HANA Blockchain Ledgers; and IBM Blockchain Platform. We also consider cloud computing without blockchain technologies. We analyze the advantages and disadvantages of each alternative by its effect on the management of MBOMs. Although we use MBOMs in our illustrations, many of the concepts discussed also apply to other critical data stored in ERPs.
Data Availability: Data are available from the public sources cited in the text.
JEL Classifications: G31; G32; G33; M21.