bluuebunny/crossref_metadata_2025 huggingface dataset:
Finding Hidden Links among Variables in a Large-Scale 4G Mobile Traffic Network Dataset with Deep Learning
Authors: Diouf Ndolane , Ndong Massa , Diop Dialo , Talla Kharouna , Beye Aboubaker Chedikh , Gueye Ibrahima
Published: April 2022

Using a mobile dataset from Orange Senegal small cell 4G network, we study the effect of variables such as data traffic at the downlink level, data traffic at the uplink level, total data traffic, maximum number of active users, signaling protocol, uplink user rate, downlink user rate, physical resource block rate for downlink, block rate physical resources for uplink, load data logging, channel quality indicator, downlink radio delay average, over the perceived rate at the downlink. We are looking to find the variable that most affects the perceived flow. We do this by using machine learning to find the variable that closely explains the variation in perceived flow and helps predict flow with greater accuracy. We observe that correlation analysis is unable to find a hidden relationship between throughput and other variables. With models such as linear regression, decision tree, random forest, multi-layered perceptron and deep neural network, the channel quality indicator (CQI_Avg) turns out to be the variable that more closely explains the variation in perceived flow and more accurately contributes to the prediction compared to others variables.
Corrected: A Prognostic Necroptosis-Related lncRNA Signature to Predict the Immune Response and Drug Sensitivity of Bladder Cancer
Authors: Tian Chao , Chen Guiliu , Cao Zhengguo
Published: April 2022

Background: Patients with bladder cancer (BLCA), especially those with advanced stage cancer, have a short life span; thus, new drugs need to be developed urgently to improve the situation. Long noncoding RNAs (lncRNAs) are considered regulatory targets for cancer, including BLCA. Therefore, we constructed a promising signature of lncRNAs related to necroptosis and further predicted the immune response and sensitivity of drugs. Methods: We downloaded the transcriptome and clinical data for BLCA from the Cancer Genome Atlas（TCGA）. Necroptosis related to lncRNAs (nrlncRNAs) was subsequently identified by univariate Cox regression. We then constructed the signature by performing the least absolute shrinkage and selection operator(LASSO) and evaluated it by Kaplan–Meier analysis, multivariate Cox regression, time-dependent receiver operating characteristics (ROC), nomogram, calibration curves, gene set enrichment analyses(GSEA), immune checkpoint, tumor microenvironment(TME), N6-methyladenosine (m6A) modification genes, and the half-maximal inhibitory concentration (IC50) analysis in the risk groups. Results: An 11-nrlncRNAs (AC008750.1, AL133297.1, AC005479.1, AP003559.1, UBE2Q1-AS1, MIR100HG, LINC02709, AC005387.1, LINC00649, AC021321.1, ETV7-AS1) prognostic signature was constructed. Immune checkpoint analysis revealed that the expression of most of the immune genes in the high-risk group was higher than those in the low-risk group. The signature predicted different IC50 values to have statistical significance in high-and low-risk groups for multiple drugs. Conclusion: Our constructed signature may contribute to the prognosis of patients with BLCA as well as serve as clinical predictors of chemotherapy and immunotherapy.
Benefits Maximization of Distribution Company with Optimal Placement of Distributed Generation and Shunt Capacitor
Authors: Siddique Abubakar , Aslam Waseem , Aslam M.Nadeem , Aslam M.Kaleem
Published: April 2022

In the present scenario of rising environmental concern and enormous load growth, the distribution system owners must undertake the decision of distribution system planning to keep the secure operation of the system and to survive in the competitive energy market. The enormous load growth can be tackled by installing new conventional generation units and increasing the feeders’ capacity. But this will cause environmental pollution and problem for the system owner from a financial standpoint. Under such circumstances, this study proposed a planning approach for optimal allocation of distribution generation (DIG) and shunt capacitor (SC) intending to maximize the technical and economic benefits of the system. Renewable energy sources based on DIG, such as solar and wind energy systems are taken into account. The time-varying characteristics of active and reactive power demand are also considered. A multi-stage planning model is considered where the planning horizon of 10 years is divided into two stages. A soft computing technique, namely Particle Swarm Optimization (PSO) technique, is applied to solve the problem. Moreover, the 33-bus distribution network is taken as the test system and different planning scenarios are considered for an in-depth planning and analysis purpose.
Does Provider Matter? A Systematic Review of Evidence Supporting Performance of SI Joint Fusion by Surgeons Rather Than Non-Surgeons
Authors: Brown Nolan J. , Nguyen Andrew , Vu Victor , Beyer Ryan S. , Hatter Matthew J.
Published: April 2022

Introduction
As patient demand for minimally invasive SIJF has increased, non-surgeons (including pain management physicians) have begun to perform a growing number of minimally invasive posterior SIJF procedures, even though these have traditionally been reserved for spine surgeons, whose extensive training renders them experts in spinal instrumentation and biomechanics.
Objectives
We compare and contrast levels of evidence and data available on minimally invasive SIJF devices in the literature published by both spine surgeons and non-surgeons. In doing so, we hope to provide insight on the role of non-surgeons in managing spinal disease in light of the Position Statement set forth by the AANS and CNS in August 2021.
Methods
A PubMed search and initial screen yielded 11 studies that were subjected to full text analysis. Using the list of SIJF devices obtained from these studies, additional searches were conducted using the National Institute of Health (NIH) Clinical Trials website and FDA 510(k), among others, yielding 6 unique devices that can currently be used by non-surgeons in the posterior SIJF approach.
Results
Spine surgeons generally perform lateral or posterolateral MIS SIJF. There are 11 unique FDA-approved devices and a total of 33 SIJF devices overall. 10 of these devices have been described in numerous reports within the peer-reviewed medical literature. For example, Titanium Triangular Implants (lateral) are described in 11 retrospective studies (level 4 evidence), 2 level 2 prospective studies, and 2 level 1 prospective studies. By contrast, non-surgeons have only investigated the use of posterior allograft devices in 2 studies. One of these studies (PainTEQ) is featured on ClinicalTrials.gov and will not be complete until March 2022. The other is a systematic review citing 6 studies on posterior SIJF performed by non-surgeons. However, these are non-peer reviewed conference abstracts – 2 of which are featured on the CornerLoc device website – and therefore cannot be assigned meaningful levels of evidence.
Conclusion
Instrumentation of the spine requires extensive surgical training such as that completed by spine surgeons. There is an increasing body of evidence in the literature supporting the performance of MIS SIJF for SI disease by spine surgeons. However, there is no evidence supporting the performance of this procedure by non-surgeons.
Transforming Communication in Health Care via Information Technology: Implementation of a free telephone directory app
Authors: Hania A , Barkat R
Published: April 2022

Background:Timely communication is key to patient safety and management in health care. Communication failure and delays in the transfer of information between healthcare workers can result in avoidable errors. We measured the effect of the implementation of a free telephone directory app for hospital staff to connect efficiently within the hospital.Methods:We implemented a free telephone directory app for smartphones which is available to all hospital staff that provides immediate access to all the internal phone lines and bleeps without calling switch. An audit of telephone calls made to switch before and after the implementation of the app was then performed.Results:Number of total calls to switch board in a 24hour period reduced by 10.9% (2,248 to 2,002 calls) following implementation of the app. The proportion of calls to switch which were from an internal line with staff requesting the number of an internal line or bleep was also reduced from 29.9% (n=672) to 24.6% (n=492), p-value <0.001.Conclusion:The use of a hospital phone directory app with mobile technology is a cost-effective measure that can benefit the hospital by improving efficiency in hospital switchboards, enhance communication and productivity for healthcare workers which can help improve patient care.
Improving the Face Validity of Self-Report Scales through Cognitive Interviews Based on Tourangeau Question and Answer Framework: A Practical Work on the Nursing Talent Identification Scale
Authors: Zamanzadeh Vahid , Ghahramanian Akram , Valizadeh Leila , bagheriyeh farzaneh
Published: April 2022

Objective: The Nursing Talent Identification self-report Scale is a recently developed to assess the fit of nursing applicants’ characteristics for the profession. In such scales, respondents may perceive items in a variety of ways.The present study aimed to determine how respondents understand and answer to items through cognitive interviews to assess the user-friendliness of the scale and increase its face validity.Results: Through conducting 20 interviews with the participants, problems related to item comprehension, information retrieval, judgment and reporting appropriate answers were identified. Based on the results, out of 95 items, 20 items were modified. The ‘instructions’ section of the scale was also revised by making the necessary explanations and providing an example.
Identification of hub genes and their clinical value for predicting the development of prostate cancer from benign prostate hyperplasia by bioinformatic analysis
Authors: Chen Xi , Ma Junjie , Xu Chengdang , Wang Licheng , Yao Yicong , Wang Xinan , Zi Tong , Bian Cuidong , Wu Denglong , Wu Gang
Published: April 2022

Prostate cancer (PCa) and benign prostate hyperplasia (BPH) are commonly encountered diseases in males. Studies showed that genetic factors are responsible for the occurrences of both diseases. However, the genetic association between them is still unclear. Gene Expression Omnibus (GEO) database can help determine the differentially expressed genes (DEGs) between BPH and PCa. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were utilized to find pathways DEGs enriched. The STRING database can provide a protein–protein interaction (PPI) network, and find hub genes in PPI network. GEPIA can be used to analyze expression and survival data for hub genes. R software was used to progress regression analysis. Finally, the results were tested in other databases, clinical samples and PCa cells. Fifteen up-regulated and forty-five down-regulated genes were found from GEO database. Seven hub genes were found in PPI network. The hub gene expression was tested on The Cancer Genome Atlas (TCGA) data. Except CXCR4, all hub genes expressed differently between tumor and normal samples. Exclude CXCR4, other hub genes have diagnostic value in predicting PCa and their mutations can cause PCa. The expression of CSRP1, MYL9 and SNAI2 changed in different tumor stage. CSRP1 and MYH11 could affect disease-free survival (DFS). Same results reflected in different databases. The expression and function of MYC, MYL9, and SNAI2, were validated in clinical samples and PCa cells. In conclusion, seven hub genes among sixty DEGs can be achievable targets for predicting which BPH patients may later develop PCa.
Influence of reaction time, temperature and heavy metal on characteristics of cellulose- and wood-derived hydrochars from hydrothermal carbonization
Authors: Zhao Xin , Huang Jin , Li Zhaonan , Chen Yao , Müller Michael
Published: April 2022

Hydrothermal carbonization (HTC) is a promising technique to convert biomass into valuable solid fuels. In this work, cellulose and wood-derived hydrochars were synthesized under hydrothermal carbonization conditions with different temperatures (200–250 ℃), reaction times (6 h or 12 h) and to determine their influence on hydrochars. Heavy metal element zinc is chosen to introduce into samples to simulate the heavy metal accumulate in biomass. The physical, chemical, and combustion properties of the hydrochars revealed that the majority of cellulose and wood conversion occurs at first 6 h, and faster conversion occurs at higher temperatures. The content of fixed carbon in the cellulose-derived hydrochar is higher than in wood-derived hydrochar. Moreover, cellulose is easier to be carbonized during HTC reaction than wood. O/C and H/C ratios of all hydrochars were similar to those of lignite and decreased with increasing reaction temperature. The composition of solids recovered after 12 h is similar at all temperatures, consisting primarily of sp2 carbons (furanic and aromatic groups) and alkyl groups. When a large amount of metal is introduced, part of the metal is combined with the energetic group, while the rest condense on the surface of the sample as zinc ions.
Hemolytic Iron Regulation in Traumatic Brain Injury and Alcohol Use
Authors: Agas Agnieszka , Ravula Arun Reddy , Ma Xiaotang , Cheng Yiming , Belfield Kevin D. , Haorah James
Published: April 2022

Hemorrhage is often a major component of traumatic brain injury (TBI). Red blood cells (RBCs), accumulated at the hemorrhagic site, undergo hemolysis upon energy depletion. Hemolysis of RBCs is expected to release free iron into the central nervous system (CNS) which must be managed to prevent iron neurotoxicity. Here, we examine the hypothesis that chronic alcohol consumption, as a secondary stressor, may increase iron toxicity in a rat model of TBI by altering the iron management pathways. We found large accumulations of free iron at the site of hemorrhage with evidence of hemolytic activity. Our observations demonstrate that alcohol use can alter the three distinct iron management pathways: transferrin/hemosiderin binding, lipocalin 2/heme oxygenase 1/ferritin system, and possible microglial phagocytosis. Presence of alcohol prolonged the expression of lipocalin 2 as well as increased and sustained levels of ferritin, while the combined effects of alcohol and TBI elevated the levels of heme oxygenase 1 faster than TBI alone. The hippocampus, neocortex, ventricles, and around vessels near the site of impact appeared to be the prominent brain regions of induction. In addition, we provide evidence that microglia my also play a role in iron management through RBC phagocytosis.
Improving of deinking technology of printing recovered paper
Authors: Мидукова М.А. , Смирнова Е.Г. , Смолин А.С.
Published: April 2022

Исследована возможность повысить эффективность очистки макулатуры марки МС-7Б от тонера, нанесённого на лазерном принтере путём сухого двухстадийного диспергирования перед флотацией. Использовалась макулатура с разным уровнем запечатанности с одной стороны бумаги: 2,5%, 3,9, 8,2, 60%. Степень запечатанности офисной макулатуры определяли с помощью программы «lpSquare v5.0 for Windows» как отношение площади запечатанной области к общей площади листа (в %). Уровень очистки макулатуры от вкраплений тонера определяли с помощью графической программы, которая позволяла установить площадь области чёрного цвета. Установлено, что разработанная технология подготовки макулатурной массы, включающая двухстадийное сухое диспергирование и последующую флотацию, эффективно удаляет вкрапления тонера в образцах бумаги. Вкрапления тонера в образцах бумаги, полученной из макулатуры облагороженной флотацией с предварительным двухстадийным сухим диспергированием, практически отсутствуют, в отличие от образцов бумаги из макулатуры, облагороженной стандартной флотацией. Оценка механических свойств образцов бумаги осуществлялась по изменению показателей – сопротивления продавливанию и сопротивления разрыву. Показано, что подготовка макулатурной массы методом флотации с предварительным сухим дисперированием способствует небольшому повышению механических показателей образцов бумаги. Механические показатели образцов бумаги практически не зависят от уровня запечатанности макулатуры.

The possibility of improving the efficiency of deinking «МС-7Б» grade recovered paper from toner applied on a laser printer by dry two-stage dispersion before flotation was investigated. Recovered paper was used with a different level of toner print on one side of the paper: 2.5%; 3,9%; 8,2%; 60%. The degree of toner prints of office recovered paper was determined by the program «lpSquare v5.0 for Windows» as the ratio of the area of the printed area to the total area of the sheet in %. The level of cleaning recovered paper from toner embossments was determined using a graphic program that made it possible to establish the area of the black area. It has been found that the developed recovered paper stock preparation technology involving two-stage dry dispersion and subsequent flotation effectively removes toner print area in paper samples. Toner print area in samples of paper obtained from floated recovered paper with preliminary two-stage dry dispersion are practically absent, unlike samples of paper from recovered paper ennobled with standard flotation. Assessment of mechanical properties of paper samples was carried out by changing the values of bursting and tinsel strength. It is shown that preparation of recovered paper stock by method of flotation with preliminary dry dispersion contributes to small increase of mechanical indices of paper samples. The mechanical properties of paper samples practically does not depend on the level of toner print area of recovered paper.
Pengaruh Pemberlakuan Standard Operating Procedure terhadap Keberlangsungan Usaha Mikro Kecil Menengah “Windu Sari Putri”
Authors:   School of Business and Economics Universitas Prasetiya Mulya, BSD City Kavling Edutown I.1, Jl. BSD Raya Utama No.1, BSD City, Kec. Pagedangan, Kabupaten Tangerang, Banten 15339, Carissa Gunawan Esther , Permana Lucky ,   School of Business and Economics Universitas Prasetiya Mulya, BSD City Kavling Edutown I.1, Jl. BSD Raya Utama No.1, BSD City, Kec. Pagedangan, Kabupaten Tangerang, Banten 15339, Ratna Sukma Dewi Ni Putu ,   School of Business and Economics Universitas Prasetiya Mulya, BSD City Kavling Edutown I.1, Jl. BSD Raya Utama No.1, BSD City, Kec. Pagedangan, Kabupaten Tangerang, Banten 15339, Andreas Arthaprasast Rivel ,   School of Business and Economics Universitas Prasetiya Mulya, BSD City Kavling Edutown I.1, Jl. BSD Raya Utama No.1, BSD City, Kec. Pagedangan, Kabupaten Tangerang, Banten 15339, Adisantika Satiananda ,   School of Business and Economics Universitas Prasetiya Mulya, BSD City Kavling Edutown I.1, Jl. BSD Raya Utama No.1, BSD City, Kec. Pagedangan, Kabupaten Tangerang, Banten 15339, Agri Ariyan Glisera ,   School of Business and Economics Universitas Prasetiya Mulya, BSD City Kavling Edutown I.1, Jl. BSD Raya Utama No.1, BSD City, Kec. Pagedangan, Kabupaten Tangerang, Banten 15339
Published: April 2022

Penelitian ini dilatarbelakangi oleh observasi penulis terhadap usaha mikro “Windu Sari Putri” yang memproduksi cistik dan jinten, dan kondisi dimana volume produksinya yang besar namun kurang terorganisir dengan baik di berbagai aspek terutama produksi. Artikel penelitian ini bertujuan untuk menggambarkan perubahan yang terjadi setelah pemberlakuan standard operating procedure (SOP) sebagai sarana pengatur proses produksi, selain SOP beberapa program kerja untuk menata ulang tata letak, prosedur kebersihan, dan mengganti peralatan juga dilaksanakan untuk memaksimalkan pengaplikasian SOP. SOP yang dirumuskan akan mengatur proses produksi dari penyiapan produksi, pembuatan adonan, penggilingan dan pengirisan adonan, pembakaran kayu, penggorengan adonan, dan pengemasan. Penelitian ini hanya akan fokus kepada pemberlakuan SOP dalam mengatur proses produksi internal dalam usaha dan pengaruhnya terhadap keberlangsungan usaha. Capaian dari penelitian ini adalah penurunan durasi produksi dan peningkatan produktivitas dalam proses produksi serta kesadaran yang meningkat terhadap kebersihan produksi.
Treatment on thiodicarb in pesticide wastewater with walnut shells-derived carbon and its improved modification: adsorption behavior
Authors: Bai Haifeng , Wang Bin , Talifu Dilinuer , Abulizi Abulikemu , Maihemuti Mailikezhati
Published: April 2022

The health problems caused by water pollution cannot be ignored, and the contribution of pesticides to water pollution has also become increasingly unignorable. The modified semi-coke as an adsorbent for reducing pesticide pollution to water was obtained from activated semi-coke which was modified by nitric acid (HNO3). The semi-coke was obtained by carbonization using 60 mesh walnut shell powder. After acid–base deashing, the semi-coke is dipped into zinc chloride (ZnCl2) solution to obtain activated semi-coke. Through BET analysis, the specific surface areas of semi-coke, activated semi-coke and modified semi-coke were 26.8 m2/g, 243.9 m2/g, and 339.6 m2/g respectively. An extremely high adsorption capacity of the adsorbents which is used to treat wastewater was achieved. The optimum adsorption conditions for modified semi-coke on thiodicarb solution were 30 mg/L of thiodicarb solution, adsorbent dosage of 0.01 g, adsorption temperature of 25 °C and adsorption time of 90 min. The optimum adsorption amount of 29.54 mg/gsor was achieved (sor is the abbreviation for sorbent). Moreover, through kinetics study, the result manifests that the modified semi-coke adsorption process is more fitted to the second-order kinetic model. This study provided a research implication theoretically for the treatment of pesticides in water.
Choroidal Changes in Carotid Stenosis Patients After Stenting Detected by
Swept-source Optical Coherence Tomography Angiography
Authors: Hu Fayun , Wu Bo , Wan Jincheng , Kwapong William Robert , Tao. Wendan , Lu Kun , Jiang Shuai , Zheng Hongbo
Published: April 2022

Background:

Carotid artery stenosis (CAS) patients show reduced blood flow in the ophthalmic
artery. This study aimed to assess the changes in the choriocapillaris and choroidal thickness
in patients with unilateral carotid artery stenosis after carotid stenting using swept-source optical
coherence tomography (SS-OCT)/swept-source optical coherence tomography angiography (SSOCTA).

Methods:

Fifty-three mild to moderate CAS patients and 40 controls were enrolled in this study. All
participants underwent digital subtraction angiography (DSA) and SS-OCT/SS-OCTAA imaging
before and 4 days after carotid artery stenting. SS-OCTA was used to image and measure the perfusion
of the choriocapillaris (mm2), while SS-OCT was used to image and measure the choroidal
thickness (μm). The stenosed side was described as the ipsilateral eye, while the other side was the
contralateral eye.

Results:

Choroidal thickness was significantly thinner (P = 0.024) in CAS when compared with
controls. Ipsilateral eyes of CAS patients showed significantly thinner (P = 0.008) choroidal thickness
when compared with contralateral eyes. Ipsilateral eyes of CAS patients showed thicker (P =
0.027) choroidal thickness after carotid artery stenting, while contralateral eyes showed thinner choroidal
thickness (P = 0.039).

Conclutions:

Our report suggests that in vivo quantification of the choroid with the SS-OCT/SSOCTA
may allow monitoring of CAS and enable the assessment of purported treatments.
Mechanisms of Compound Sophora flavescens (Kushen) Decoction for the
Treatment of Ulcerative Colitis based on Network Pharmacology and Molecular
Docking Technology
Authors: Li Xiaoyan , Xie Jingwen , Peng Zijing , Zheng Zhuoling , Gao Min , Qin Li , Xiong Lixiong
Published: April 2022

Background:

The compound Sophora flavescenes (Kushen) decoction was found to reduce the inflammatory symptom of Ulcerative Colitis (UC). However, there exists a very limited understanding of the molecular pharmacological mechanisms.

Objective:

This study aimed to explore the mechanism of compound Sophora flavescens (Kushen) decoction in treating ulcerative colitis from the perspective of network pharmacology.

Methods:

Active components and potential targets of compound Sophora flavescens (Kushen) de-coction were obtained through the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) database. GeneCards and other databases were used to predict and screen ulcerative colitis-related genes. Cytoscape software was applied to construct the “drug-active component-disease-target” network. GO function and KEGG pathway enrichment analyses revealed the potential pathway of the compound Sophora flavescenes (Kushen) decoction for UC.

Results:

After the screening, a total of 124 active ingredients and 163 potential therapeutic targets for UC were obtained from the compound Sophora flavescens (Kushen) decoction. Protein inter-action network analysis showed that 15 key targets could be identified for the possible treatment of UC. GO and KEGG analyses showed that the active ingredients in the compound Sophora fla-vescens (Kushen) decoction were mainly enriched in 2556 biological processes and 172 signaling pathways.

Conclusion:

The study showed that the compound Sophora flavescens (Kushen) decoction has therapeutic effects on UC through multi-component, multi-target, and multi-pathway.
Grape Phytochemicals and Vitamin D in the Alleviation of Lung Disorders
Authors: Santa Kazuki
Published: April 2022

Background:

Typical lung diseases are pneumonia, asthma, sleep apnea syndrome (SA),
interstitial pneumonia (IP), lung cancer, and chronic obstructive pulmonary disease (COPD). Coronavirus
disease 2019 (COVID-19) is a type of viral pneumonia. Many researchers have reported that phytochemicals
(chemical compounds produced by plants) and vitamin D are useful in stimulating our
immunity. This review discusses the alleviation of lung diseases by grape phytochemicals and vitamin
D.

Discussion:

Pneumonia is an acute inflammation caused by the infection of pathogens; the worst case
is a fatal cytokine storm in the lung. In asthma, allergens, tobacco smoke, or air pollution may cause
seizures. Lung diseases caused by lung fibrosis may manifest chronic inflammation, progress into alveolar
fibrosis, and cause respiratory malfunction. SA is a lifestyle disease related to obesity and metabolic
syndrome. To alleviate these symptoms, changing the eating habit is one of the strategies. Improvement
in the daily lifestyle reduces the risk of lung cancer. Self-management, including nutritional
management and exercise, is very important for COPD patients in addition to pharmacotherapy.

Conclusion:

The intake of grape phytochemicals and vitamin D prevents the progress of lung diseases.
Both phytochemicals and vitamin D prevent the production of proinflammatory cytokine, TNF-α, that
is responsible for inflammation and lung diseases. Daily intake of grape phytochemicals is important.
The optimum vitamin D level in serum is > 30 ng/mL. For the prevention of lung diseases, upregulating
immunity and maintaining good gut microbiota are important because gut microbiota change
depending on what we eat.
Спектрально-люминесцентные свойства и природа электронно-возбужденных состояний сульфагуанидина в воде
Authors: Базыль О.К. , Чайковская О.Н. , Чайдонова В.С. , Бочарникова Е.Н. , Майер Г.В.
Published: April 2022

The absorption and fluorescence spectra of sulfaguanidine, its complexes with hydrogen bonds, and doubly charged cationic forms have been studied experimentally and theoretically. The orbital nature of electronically excited states is established and a theoretical interpretation of the absorption and fluorescence spectra is given. It was shown that the main reason for the anomalously large Stokes shift of fluorescence is the rearrangement of the benzoid structure of the phenyl fragment of sulfaguanidine into a quasi-quinoid one. The influence of the formation of hydrogen bonds and the addition of a proton on the amount of charge transfer between weakly bound fragments of the molecule has been established
Температурная зависимость кинетики затухания флуоресценции производных тиофлавина T в глицерине
Authors: Степуро В.И.
Published: April 2022

Possible use of Thioflavin T based fluorescent molecular rotors as temperature sensors was assessed in this work. Fluorescent properties of Thioflavin T and its derivative 6-Me-BTA-2C in 99 % glycerol were studied using steady-state and time-resolved fluorescence spectroscopy methods. For Thioflavin T in glycerol it has been found that temperature growth from 261 K to 353 K results in ~3 orders of magnitude increase of non-radiative decay rate constant k_nr for the excited state of the molecule. Fluorescence decay studies by time-correlated single photon counting method showed that fluorescence decay kinetics of Thioflavin T in glycerol can be used for temperature measurements in the range 260–290 K. For 6-Me-BTA-2C molecule the range of the maximal sensitivity was shifted to higher temperatures (280–320 K). The obtained results about fluorescent properties and decay kinetics of Thioflavin T based dyes in highly viscous media can be used to develop nanoscale temperature sensors.
Фотомодуляция люминесценции наносфер с квантовыми точками CdSe/ZnS в полимерных пленках
Authors: Карпач П.В. , Василюк Г.Т. , Венидиктова О.В. , Барачевский В.А. , Туктаров А.Р. , Маскевич С.А. , Артемьев М.В.
Published: April 2022

The results of studies of the spectral-kinetic (absorption and fluorescent) characteristics of the polymer nanospheres created by us (containing luminescent inorganic CdSe/ZnS quantum dots and photochromic diarylethene molecules) incorporated into a polymer film are presented.
A reversible modulation of the fluorescence intensity of quantum dots, caused by the photoisomerization of diarylethene molecules, was found. It is shown that nanospheres in polymer matrices exhibit higher efficiencies of both photoinduced modulation of QD radiation and Förster resonance energy transfer (FRET) from QDs to the cyclic isomer of DAE as compared to solutions.
The results can be used, for example, to create luminescent photocontrolled panels based on films containing fluorescent nanoparticles.
Стэкинг-агрегация и фотодимеризация тиминовых хромофоров в водных растворах poly-T
Authors: Малкин В.М. , Рапопорт В.Л.
Published: April 2022

The heterogeneity of aqueous solutions of polythimidylic acid (poly-T) at room temperature has been established by the methods of luminescence and absorption spectroscopy. Two fractions of thymine chromophores have been identified: 1) a photoactive fraction consisting of two types of stacking aggregates with an optimal structure for photodimerization, the first type corresponds to absorption bands at 250 and 280 nm (exciton splitting 4300 cm-1), the second - 260 and 290 nm (exciton splitting 4000 cm-1); 2) photochemically intact with the maximum of absorption spectrum at 270 nm, without exciton splitting, probably consisting of relatively isolated chromophores.
Поляризационные сингулярности при интерференции трех плоских волн
Authors: Розанов Н.Н.
Published: April 2022

Polarization singularities arising from the interference of three plane monochromatic waves with close propagation directions in a vacuum or a linear isotropic medium are studied within the framework of the quasi-optical approximation. With a special choice of linear polarization of waves, the conditions for the formation of L-lines in the cross section, where the polarization is linear, and C-points, where the polarization is circular, are determined, and analytical expressions are obtained for the location of such polarization singularities.
Анализ процесса разрушения алюминия на поверхности кремния при электрическом взрыве проводника
Authors: Корячко М.В. , Скворцов А.А. , Пшонкин Д.Е. , Володина О.В.
Published: April 2022

The work considers the processes of formation of aluminium melt drops, dispersion of aluminium melts and dynamics along the surface of the semiconductor during the electrical explosion of the metal film. It has been shown that in conditions of flow of rectangular high-density current pulses (amplitude j=8.1010 A/m2 and duration up to 2.5 ms), an electrical explosion of a conductor occurs through a test structure based on aluminium film (thickness 3 μm). Dispersion of up to 30% of the mass of the aluminium film is observed.
It has been established that the main parameter characterizing the dispersion during the destruction of an aluminium film is the energy of an electrical pulse. The distribution of rounded aluminium particles by size (diameter) has been determined experimentally. It has been found that the largest number of particles in the conditions considered are 1-3 µm in size.
Электронный нейроподобный генератор с возбудимым и автоколебательным режимом на основе системы фазовой автоподстройки частоты
Authors: Большаков Д.И. , Мищенко М.А. , Матросов В.В. , Сысоев И.В.
Published: April 2022

Experimental implementation of neuron-like generator on the basis of phase-locked loop (PLL) with band-pass filter is proposed. The generator is able to generate oscillations that are typical for neuronal dynamics like spikes and bursts, both regular and chaotic, and demonstrate excitable (non-oscillating) behavior. Excitable mode is typical for the most of brain neurons that remains silent until activated by external signal. Previous PLL-based neuron-like models couldn’t demonstrate excitable dynamics. Therefore, the proposed neuron-like generator could be a basic block for electronic spiking neural networks to mimic brain neural networks.
Влияние акустических колебаний на скорость ячеистого водородно-воздушного пламени в горизонтальном канале
Authors: Володин В.В. , Голуб В.В. , Ельянов А.Е.
Published: April 2022

The results of an experimental study of the effect of acoustic oscillations with a frequency of 250-7000 Hz and an intensity of 105 dB on the dynamics of the acceleration of a hydrogen-air flame in an open channel are presented. Dependences of the position of the flame front and cell sizes were obtained from shadow photographs at different frequencies of acoustic oscillations. The frequency values when the average flame speed increases up to 3 times are found. Acoustic action with a frequency of 250 Hz leads to a slight decrease in the speed of the flame.
A Mobile-based Virtual Reality Speech Rehabilitation App for Patients With Aphasia After Stroke: Development and Pilot Usability Study
Authors: Bu Xiaofan , Ng Peter HF , Tong Ying , Chen Peter Q , Fan Rongrong , Tang Qingping , Cheng Qinqin , Li Shuangshuang , Cheng Andy SK , Liu Xiangyu
Published: April 2022

Background

Stroke has the highest disability-adjusted life-years lost in any disease, and approximately one-third of the patients get aphasia. Computers and tablets are innovative and aid in intensive treatments in speech rehabilitation for patients with aphasia. However, mechanical training limits the help to patients.

Objective

This study aims to provide a framework for an integrated virtual reality (VR) app to provide speech rehabilitation for patients with aphasia.

Methods

The content was generated through an in-depth literature review and discussion with experienced rehabilitation physicians and occupational therapists. We then conducted a 2-round Delphi study with 15 experts from hospitals and universities to rate the content using a 5-point Likert scale. The app was developed by an interdisciplinary team involving VR, medical science of rehabilitation, and therapeutic rehabilitation. Pilot usability testing of this novel app was conducted among 5 patients with aphasia, 5 healthy volunteers, 5 medical staff, and 2 VR experts.

Results

We designed 4 modules of speech rehabilitation: oral expression, auditory comprehension, cognition, and comprehensive application. Our VR-based interactive and intelligent app was developed to provide an alternative option for patients with aphasia. Pilot usability testing revealed user satisfaction with the app.

Conclusions

This study designed and tested a novel VR-based app for speech rehabilitation specifically adapted to patients with aphasia. This will guide other studies to develop a similar program or intelligent system in a clinical setting.
Fake News Detection using Machine Learning
Authors: Reddy Vookanti Anurag , Reddy CH Vamsidhar , Lakshminarayanan Dr. R.
Published: April 2022

Abstract: This Project comes up with the applications of NLP (Natural Language Processing) techniques for detecting the 'fake news', that is, misleading news stories that comes from the non-reputable sources. Only by building a model based on a count vectorizer (using word tallies) or a (Term Frequency Inverse Document Frequency) tfidf matrix, (word tallies relative to how often they’re used in other articles in your dataset) can only get you so far. But these models do not consider the important qualities like word ordering and context. It is very possible that two articles that are similar in their word count will be completely different in their meaning. The data science community has responded by taking actions against the problem. There is a Kaggle competition called as the “Fake News Challenge” and Facebook is employing AI to filter fake news stories out of users’ feeds. Combatting the fake news is a classic text classification project with a straight forward proposition. Is it possible for you to build a model that can differentiate between “Real “news and “Fake” news? So a proposed work on assembling a dataset of both fake and real news and employ a Naive Bayes classifier in order to create a model to classify an article into fake or real based on its words and phrases
Control of BLDC motor and Regenerative Braking in Electric Vehicle
Authors: Salodkar Prof. Minal , Rewadkar Mr. Somesh , Pawar Mr. Gaurav , Thorpe Mr. Nathan , Patel Mr. Shubham , Karrahe Mr. Om , Bind Mr. Shreyas
Published: April 2022

Abstract: With the rising economy, fuel demand also increases. In today's world, fossil fuels are the major contribution to meeting these demands. However, it is not going to be the same scenario in the next decades as the fossil fuels levels are depleting there is a need for an alternative fuel that will satisfy energy requirements and will be a sustainable source in coming years. In the automotive industry petrol and diesel have been major fuels in driving vehicles. Although electric vehicles are going to be replaced by IC engines. Electric vehicles have lower fuel costs as compared to internal combustion engines but because of limited charging stations vehicles are bound to drive within certain distances. With the implementation of regenerative braking in electric vehicles, it is possible to charge batteries when the vehicle is breaking and thus increasing driving distance. This paper presents a simulation of control of BLDC motor with regenerative braking. Keywords: Regenerative Braking, BLDC Motor, Bi-Directional DC-DC Converter, VSI, Electric Drives.
Human Activity Recognition System Using Smartphone Data Sensors with Python and Machine Learning
Authors: Gade Prof. Swati , Lokare Shubham , Gadekar Tushar , Khoje Karan
Published: April 2022

Abstract: This project depicts recognition Human activity Using data generated from user Smartphones Machine Learning repository to recognize six human activities. These activities are standing, sitting, laying, walking, upstair and walking, ddownstairs. Data is collected from embedded accelerometer, gyroscope and other sensor .Data is randomly divided into 7:3 ratios to From training and testing data set respectively. Activity Classification done using Machine Learning models Namely Random Forest. support vector machine, Neural Network and k-Nearest Neighbor. We have compared accuracy and performance of these model using confusion matrix and random simulation. Human Activity recognition(HAR) is classifying activity of person using responsive sensor that are affected from human movement. Both users and capabilities of smartphone With them. These facts makes HAR more important and Popular. This work focuses on recognition of Human activity using smartphone sensor different machine learning clssification approaches. Data retrieved from smartphones accelerometer and gyroscope sensor are classified On order to recognize human activity. Results of the approaches used compared in terms of efficiency and precision. Keywords: CNN, Accelerometer and gyroscope LSTM Model, Machine Learning, SVM etc
Forecasting Meteorological Parameters to Identify Categories of Droughts in Amreli Using Downscaling Approach
Authors: Zadafiya Gautam , Ladavia Chirag , Gandhi Haresh
Published: April 2022

Abstract: The rising incidence of natural disasters as a result of climate change has become a major concern for the entire world in recent years. The majority of people in India who work in agriculture or near coastal areas rely on natural resources for their sustenance and income. Droughts, floods, cyclones and other natural calamities are linked to uncertainty in meteorological parameters. Hence, this research is crucial for such analysis. As a result, the primary goal of this research is to investigate the uncertainty of numerous meteorological parameters in Amreli. In the previous decade, there has been a considerable increase in the uncertainty of meteorological data in this region. Statistical downscaling uses GCM data, while dynamic downscaling techniques use RCM data. The statistical downscaling technique was used in this work to accurately forecast meteorological characteristics. To anticipate meteorological characteristics, the RCP 8.5 (A2) scenario is used in this study. SPI values are used for the analysis and forecasting of drought categories. The predicted meteorological parameters will be extremely helpful in the future development of various tools and ways of dealing with various natural disasters. Flood vulnerability maps and famine response planning can be prepared using these data. For example, Assistance can be provided topology developers to prepare policy based on the severity of the forecasted meteorological data. Keywords: GCM, RCP, SPI, Statistical Downscaling, Temperature, Precipitation.
ETHICAL, INNOVATIVE, AND MOBLE : SHARIA BANKS AND FACTORS AFFECTING IST COMPETITIVE ADVANTAGE
Authors: Suandi Edi , Herri Herri , Yulihasri Yulihasri , Syafrizal Syafrizal
Published: April 2022

Competition between conventional banks and Islamic banks in Indonesia places Islamic banks as the second choice, even though this country is a country with the largest Muslim population in the world. The government argues that this is due to the inability to reach the market, weak risk management, and low quality of technology. Whether this statement is true or not has not been scientifically explored. These three problems can be covered in the concept of Islamic marketing ethics, entrepreneurial marketing, and convergence marketing. This study examines how these three variables influence the competitive advantage of 204 branches of nine Islamic commercial banks in Indonesia and how the impact of these competitive advantages on bank performance. The structural equation model is used to examine the indirect effect of Islamic marketing ethics, entrepreneurial marketing, and convergence marketing on sharia bank performance through competitive advantage. The results indicate that these three variables have a significant effect on the competitive advantage of Islamic banks and competitive advantage mediates the effect of these three variables on sharia bank performance.
EFFECT OF ROA, NPM, CR, EPS ON STOCK PRICES IN CONSUMER GOODS COMPANIES
Authors: Novita Herlina , Pratama Surbakti Michael , Yanti Manalu Fitri , Yanti Silalahi Kristina Eva , Hezellyta Bukit Rany
Published: April 2022

This study aims to determine the effect of  ROA, NPM, CR, and EPS simultaneously and partially on stock prices in consumer goods companies listed on the IDX for the period 2017 – 2020. This study uses a population of 53 consumer goods companies listed on the IDX for the 2017period – 2020. The method used in this study is a quantitative method. The data used are secondary data registered through the official website www.idx.co.id and www.idn.financials.com. In this study, the sample was taken using purposive sampling technique. This research was tested using the classical assumption test. The data investigation method used was the multiple linear regression method. The results showed that partially ROA, CR, and EPS had a significant effect on stock prices partially and NPM had a positive and significant effect on stock prices. IDX for the period 2017 – 2020.
ANALYSIS OF CR, DER, TAT ON PROFIT GROWTH IN TRADING SECTOR COMPANIES
Authors: Nelsari Malau Yois , Elizabeth Siregar Angel , Sartika Ginting Emy
Published: April 2022

The purpose of this study was to determine and analyze the effect of Current Ratio, Debt to Equity Ratio, Total Assets Turnover, Net Profit Margin on profit growth. The data in this study were taken from the annual report data source on the Indonesia Stock Exchange through the idx.co.id website and have been carried out based on the existing sample criteria. This research method uses quantitative methods. Data collection method using secondary data. The sampling technique applies purposive sampling. The population in this study is 47 financial statements of trading sector companies in 2017-2019 which are listed on the Indonesia Stock Exchange. And the number of samples in the study is 39. Based on this research, it shows that partially the variables that affect profit growth are Debt to Equity Ratio and Total Assets Turnover, while variables that do not affect profit growth are Current Ratio and Net Profit Margin.
INFLUENCE OF EGO DEPLETION, SLEEP QUALITY, LIFESTYLE, INTERPERSONAL CONFLICT ON AUDITOR'S DECISION MAKING
Authors: Hayati Keumala , Ketaren Paulina , Siahaan Nadia
Published: April 2022

Decision making is part of the work responsibilities of every employee, especially an auditor. This research was conducted to determine whether there is an influence between ego depletion , sleep quality , lifestyle , interpersonal conflict on the auditor 's decision making . The population in this research is 60 auditors who work and have their own KAP in Medan City. The age and working experience of the auditors ranged from 25 years old with an average of two years of working experience as an auditor. The sampling technique used in this study was purposive sampling. The data analysis technique uses Validity Test, Reliability Test, Classical Assumption Test, Multiple Regression Analytical Test, T TEST and F TEST. Based on the results of research conducted, it shows that Ego Depletion and Interpersonal Conflict have a significant effect on Auditor Decision Making. While Lifestyle and Sleep Cycles do not show a significant influence on Decision Making by Auditors