bluuebunny/crossref_metadata_2025_split huggingface dataset:
IMPLEMENTASI PENGONTROLAN TEGANGAN KELUARAN DC STEP-UP ZETA CONVERTER DENGAN VARIASI TEGANGAN INPUT DARI SINGLE PV MENGGUNAKAN LOGIKA FUZZY
Authors: Mahmudi Irwan , Jumiyatun Jumiyatun , P. M. Reza 
Published: January 2022

The solar panel is a device that functions as a producer of electrical energy by converting solar energy into electrical energy but have several disadvantages, one of which is the non-constant output voltage due to the influence of light intensity and surface temperature of the panel. In this research, Zeta Converter will be designed and implemented as a tool that plays a role in maintaining the output voltage of solar panels to remain constant at 24V DC, with Fuzzy Logic Control as a method in controlling PWM switching. The results obtained from this study are that zeta converter can keep the output voltage of solar panels constant at a value of 24V, with a low ripple voltage and overshoot. The fuzzy logic method used can produce a constant output voltage with a rise time around 5 seconds. The efficiency obtained from this converter hardware is around 70% - 73%.
SOSIOTEKNOLOGI Kearifan Lokal: Komoditas Era Revolusi Industri 5.0
Authors: Firman Muhamad Firman Al-Fahad 
Published: January 2022

Book Title : SOSIOTEKNOLOGI Kearifan Lokal: Komoditas Era Revolusi Industri 5.0
Author Names : Dicky R. Munaf dan Susanto
Year of Publication : 2021
Publisher : ITB Press, Gedung Perpustakaan Pusat ITB, Jl. Ganesa No. 10 Bandung 40132, Jawa Barat
Number of pages : 293 pages
ISBN Number : 978-623-297-131-8
Book review by : Muhamad Firman Al-Fahad
LSB-based pre-embedding video steganography with rotating & shifting poly-pattern block matrix
Authors: Hacimurtazaoglu Murat , Tutuncu Kemal 
Published: January 2022

Background
In terms of data-hiding areas, video steganography is more advantageous compared to other steganography techniques since it uses video as its cover medium. For any video steganography, the good trade-off among robustness, imperceptibility, and payload must be created and maintained. Even though it has the advantage of capacity, video steganography has the robustness problem especially regarding spatial domain is used to implement it. Transformation operations and statistical attacks can harm secret data. Thus, the ideal video steganography technique must provide high imperceptibility, high payload, and resistance towards visual, statistical and transformation-based steganalysis attacks.

Methods
One of the most common spatial methods for hiding data within the cover medium is the Least Significant Bit (LSB) method. In this study, an LSB-based video steganography application that uses a poly-pattern key block matrix (KBM) as the key was proposed. The key is a 64 × 64 pixel block matrix that consists of 16 sub-pattern blocks with a pixel size of 16 × 16. To increase the security of the proposed approach, sub-patterns in the KBM are allowed to shift in four directions and rotate up to 270° depending on the user preference and logical operations. For additional security XOR and AND logical operations were used to determine whether to choose the next predetermined 64 × 64 pixel block or jump to another pixel block in the cover video frame to place a KBM to embed the secret data. The fact that the combination of variable KBM structure and logical operator for the secret data embedding distinguishes the proposed algorithm from previous video steganography studies conducted with LSB-based approaches.

Results
Mean Squared Error (MSE), Structural Similarity Index (SSIM) and Peak Signal-to-Noise Ratio (PSNR) parameters were calculated for the detection of the imperceptibility (or the resistance against visual attacks ) of the proposed algorithm. The proposed algorithm obtained the best MSE, SSIM and PSNR parameter values based on the secret message length as 0.00066, 0.99999, 80.01458 dB for 42.8 Kb of secret message and 0.00173, 0.99999, 75.72723 dB for 109 Kb of secret message, respectively. These results are better than the results of classic LSB and the studies conducted with LSB-based video steganography approaches in the literature. Since the proposed system allows an equal amount of data embedding in each video frame the data loss will be less in transformation operations. The lost data can be easily obtained from the entire text with natural language processing. The variable structure of the KBM, logical operators and extra security preventions makes the proposed system be more secure and complex. This increases the unpredictability and resistance against statistical attacks. Thus, the proposed method provides high imperceptibility and resistance towards visual, statistical and transformation-based attacks while acceptable even high payload.
Influence of Different Drip Irrigation and Fertigation Levels on Yield and Economics of High-density Cotton
Authors: Lavanya N. , Laxminarayana P. , Devi K. B. Suneetha , Jayasree G. , Prayaga Lakshmi 
Published: January 2022

An experiment was conducted to study the effect of different drip irrigation and fertigation levels on yield and economics of high-density cotton at College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Hyderabad, during kharif 2019 and 2020. The experiment consisted of twelve treatments laid out in Factorial randomised block design (FRBD) replicated thrice. Three irrigation levels (irrigation scheduled at 0.6 [I1], 0.8 [I2] and 1.0 [I3] Epan throughout the crop growth period) and four fertigation levels (application of 100% RDNK in differential dosage as per recommendation [F1], application of 100% RDNK in differential dosage as per crop coefficient curve [F2], application of 125% RDNK in differential dosage as per recommendation [F3], and application of 125% RDNK in differential dosage as per crop coefficient curve [F4],) were included as treatments in this study. Irrigation levels did not show any significant influence on yield and economics during 2020 and 2021. While among the four fertigation levels, application of 125% RDNK in differential dosage as per crop coefficient curve (F4) recorded significantly higher gross returns, net returns and B:C ratio which were on par with application of 125% RDNK in differential dosage as per recommendation (F3). Lower gross returns, net returns and B:C ratio were obtained with the application of 100% RDNK in differential dosage as per recommendation (F1) which were on par with application of 100% RDNK in differential dosage as per crop coefficient curve during both the seasons (F2). Further the gross returns and net returns produced under F3 was also on par with F2.
Frequency and Risk Factors of Wound Complications in Type II Diabetic Patients Undergoing Abdominal Surgery
Authors: Tayyab Abdul Samad , Qurban Maria , Mazhar Maryam , Tayyab Zaid , Tahir Mariam , Tayyab Zain 
Published: January 2022

Introduction: Poorly controlled type II diabetes is associated with an array of micro-vascular, macro-vascular, and neuropathic complications.
Objectives: The main objective of the study is to analyse the frequency of wound complications in type II diabetic patients undergoing abdominal surgery.
Material and methods: This cross sectional study was conducted in THQ haveli lakha, Okara with the collaboration of Sir Ganga Ram Hospital, Lahore during March 2021 to August 2021. The data was collected through non-probability consecutive sampling technique. There were 120 patients which were enrolled in this study according to the inclusion and exclusion criteria. A systematically designed questionnaire was made for the collection of data.
Results: The data was collected from 120 patients. The mean age was 55.5± 2.57 years. Most of the particpants was male (51.1%), non-smokers (95.6%) and didn't have hypertension (67.8%). The mean time of diabetes mellitus was 6.1±5.6 a long time. The majority didn't have neuropathy (81.1%), peripheral strokes (90.0%), pre-ulcerous states (90.0%), insensitive (89.9%), crevices on feet (64.4%), nail pathology (97.1%), injury disfigurement (93.3%) or incapacity (94.4%).
Conclusion: It is concluded that it is difficult to treat the wound complication in diabetic patients. Diabetic patients are at an increased risk of postoperative surgical site infection while undergoing open surgery, laparoscopic cholecystectomy has no increased morbidity in diabetic patients as compared to non-diabetic patients.
Phytochemical Analysis of Fagonia schweinfurthii Hadidi
Authors: Joshi Yamini , Jain B. K. 
Published: January 2022

Fagonia schweinfurthii Hadidi (family zygophyllaceae) is plant of desert region .In Gujarat it is found on the coastal area of Dwarka, Bet Dwarka and Rann of Kachcha. It is locally called dhamasia or dhamaso. Plants parts including leaves, roots, rhizomes, stems, barks, flowers, fruits, grains or seeds which can be employed in the control or treatment of infectious disease which causes damage to the respiratory system, urinary tract, gastrointestinal and bilary systems and on the skin. The plant parts contain chemical components that are medically active. Tribal people living in desert region use this plant to cure number of ailments such as skin eruptions, skin diseases, anti- pyretic, in pain relief, in heal sores, ear infection, venereal diseases etc. In the new era of science and technology there is increasing need to validate the claims of traditional knowledge database for safe, easily available, cheap, side- effect free healthcare provisions. In the present study preliminary phytochemical analysis of plant parts of Fagonia schweinfurthii Hadidi was done by the standard method of Sofowora, 1982; Trease & Evans, 1989 method, which confirms the presence of alkaloids, tannin, saponin, terpinoid and steroids. High Performance Thin Layer Chromatography method was developed using mobile phase containing Chloroform: methanol: acetic acid in ratio 70:30:0.2 for detecting phyto-active constituents from the methanolic extracts of the leaf, stem and root of Fagonia schweinfurthii Hadidi. Methanolic extract of Fagonia schweinfurthii Hadidi of leaf, stem, fruit and root detected 8, 8, 7 and 4 numbers of peaks at 254 nm and at 366 nm 10, 12, 13 and 12 numbers of peaks from leaf, stem, fruit and root extract of Fagonia schweinfurthii Hadidi were detected.
Awareness of the Practice and Use of Contact Lenses amongst Students of the Health Faculty at Jazan University during the COVID-19 Pandemic
Authors: Abuallut Ismail , Hakami Abdulaziz A. , Alameer Mohammed I. , Shami Mohammed O. , Hakami Nasser M. , Khawaji Alfadhel A. , Attiah Abdualrhman , Madkhli Elaf H. , Jareebi Mohammad A. , Hammadah Maryam M. Al , Alkhars Ahmed Z. , Almalki Norah M. 
Published: January 2022

Background: Contact lenses are medical devices which are used as an alternative to spectacles to correct problems with eyesight. Poor hygienic handling of these lenses poses an ocular health risk. Increased popularity and usage of contact lenses in combination with insufficient cleanliness results in increased bacterial infections of the eye, even resulting in blindness.
Materials and Methods: We employed a quantitative cross-sectional study, where we used questionnaires to gather data. We conducted the study among students of the Health Faculty at Jazan University where we recruited 361 participants. Using the questionnaires, we assessed the use of contact lenses and the hygiene practice when handling them among the participants. To the best of our knowledge, only one study has been conducted in the Jazan region to assess contact lens awareness and practice, which can be consider as a gap of knowledge that make our study can be consider a vital observation about usage of contact lens in the Jazan region.
Results: We found that 52.6% of the participants use contact lenses. Among those it is predominantly females who use contact lenses, and their motivation is primarily for cosmetic reasons. We further found that the majority of contact lens users exhibit good hygiene practices when handling contact lenses. However, there remains more than a quarter of participants for whom the hygiene practice is poor to moderately good.
Conclusion: The majority of participants 172 (84.7%) had good practice level regarding wearing contact lenses. Considering the significant fraction of participants who showed inadequate hygiene practice, we recommend better information and training for those who use contact lenses. This information and training should be predominantly made available on the internet or through contact lens vendors, as these are the most common information channels among the participants.
H2O2 Self‐Producing Single‐Atom Nanozyme Hydrogels as Light‐Controlled Oxidative Stress Amplifier for Enhanced Synergistic Therapy by Transforming “Cold” Tumors
Authors: Zhu Daoming , Chen Hao , Huang Chunyu , Li Guoxin , Wang Xing , Jiang Wei , Fan Kelong 
Published: January 2022

AbstractSingle‐atom nanozyme (SAzyme) with peroxidase‐like activity can alter cellular redox balance and shows promising potential for tumor therapy. However, the “cold” immune microenvironment and limited amount of hydrogen peroxide (H2O2) in solid tumors severely restrict its efficacy. Herein, a light‐controlled oxidative stress amplifier system is designed by co‐encapsulating Pd‐C SAzymes and camptothecin in agarose hydrogel, which exhibits enhanced synergistic antitumor activity by self‐producing H2O2 and transforming “cold” tumors. In this nanozyme hydrogel system, the Pd‐C SAzyme converts near‐infrared laser into heat, resulting in agarose degradation and consequent camptothecin release. The camptothecin increases H2O2 level in tumors by activating nicotinamide adenine dinucleotide phosphate oxidase, improving the catalytic performance of SAzymes with peroxidase‐like activity. Moreover, the combination of photothermal therapy, chemotherapy, and nanozyme‐based catalytic therapy further facilitates tumor immunogenic death and enhanced antitumor immunity. The results reveal the synergistic antitumor potential of the novel SAzyme/chemotherapeutics‐based hydrogel system.
Adhesion and Interface Studies of the Structure‐Controlled Polyimide with Smooth Copper for High‐Frequency Communication
Authors: Zhong Ao , Li Jinhui , Zhang Guoping , Sun Rong 
Published: January 2022

AbstractFan‐out wafer‐level packaging (FOWLP) is expected to become the dominating trend in millimeter wave and 5G communication. However, the reliability faces enormous challenges due to the inherent poor adhesion between the insulating layer of polyimide (PI) and copper wirings in FOWLP. Herein, adhesive polyimide (API) with improved adhesion on smooth Cu by the introduction of benzimidazole and siloxane structure is reported. The results prove that the adhesion strength is increased by 191.46% compared with the conventional PI, owing to the generation of Cu complexes by benzimidazole as well as the cooperation of the flexible siloxane segments. Besides, the APIs not only hold a proper coefficient of thermal expansion (CTE) of 6.28 × 10−6 K−1 matching with Si wafers (2.5 × 10−6 K−1), but also possess CTE (18.56 × 10−6 K−1) of API‐3 matching with Cu circuits (17 × 10−6 K−1), so that a low residual stress of −1.849 MPa is obtained. Moreover, superior mechanical, thermal properties are also obtained, of which the modulus and tensile strength are 6.31 GPa and 170 MPa, while Tg and T5% are as high as 474.6 and 524.57 °C, respectively. Therefore, the as‐prepared high‐performance APIs can be prospective candidates in FOWLP for high‐frequency communication.
2D Ultrathin p‐type ZnTe with High Environmental Stability
Authors: You Shengdong , Wu Zhen , Niu Lijuan , Chu Xiaohong , She Yihong , Liu Zhenjing , Cai Yuting , Liu Hongwei , Zhang Lijie , Zhang Kenan , Luo Zhengtang , Huang Shaoming 
Published: January 2022

AbstractThe poor air stability hinders the practical application of most 2D materials. P‐type 2D ZnTe has drawn widespread attention, thanks to its wide direct bandgap and outstanding environmental stability. However, the controllable synthesis of ultrathin 2D ZnTe remains a huge challenge due to the intrinsic unlayered crystal structure. Here, p‐type 2D ultrathin ZnTe flakes are controllably synthesized by using space‐confined physical vapor deposition. In situ temperature‐dependent Raman and electronical measurements show the thermal stability up to 420 K and outstanding air stability even under humidity of 95%. The ZnTe flakes‐based photodetector demonstrates the broadband response varying from the visible to near infrared region, responsivity of 18.3 A W‐1 and detectivity (D*) of 2.89 × 109 Jones under 405 nm illumination, implying promising potential application in electronics and optoelectronics worked in harsh environment.
Auto‐Oxygenated Porphyrin‐Derived Redox Mediators for High‐Performance Lithium Air‐Breathing Batteries
Authors: Kim Hyun‐Soo , Kim Boran , Park Hyunyoung , Kim Jongsoon , Ryu Won‐Hee 
Published: January 2022

AbstractBecause of their distinct energy potentials, Li air‐breathing batteries have been highlighted as promising energy storage systems; however, the sluggish oxygen reduction and evolution reactions (ORR and OER) disturb the reversible cell operation during cycling. Therefore, catalyst materials should be tailored to mitigate the low efficiencies of air‐breathing batteries. A porphyrin‐derived catalyst is optimized by introducing different metal‐centered organometallic phthalocyanine (MPc) complexes and their potential application as redox mediators (RMs) for fabricating efficient Li–O2 cells is investigated. The feasibility of each MPc is determined as a potential RM by calculating its orbital levels. The electrochemical properties of the Li–O2 cells employing the diverse MPc‐RMs are compared. The MPc‐containing Li–O2 cells exhibit improved cell performance, reduced polarization, and stable cyclability with auto‐oxygenated properties as revealed by directly injecting superoxide species into the MPc‐containing electrolytes. The synergistic effects of blended MPcs—a mixture consisting of the two most effective MPcs—in both the OER and ORR regions in ambient air atmosphere are also elucidated. The reaction mechanism of the MPc‐containing cells is proposed based on first‐principles calculations and experimental results. The introduction of natural functional catalysts provides a basis for developing effective eco‐friendly catalysts for application to sustainable air‐breathing batteries.
A new approach for modeling adsorption kinetics and transport of methane and carbon dioxide in shale
Authors: Gu Min , Xian Xue‐fu , Miao Beizeng , Chen Xusong , Du Xidong , Liu Zhengyang , Xu Ran 
Published: January 2022

AbstractIn this article, a new approach is proposed to investigate adsorption kinetics and transport of gases in shale. Due to co‐existence of pores with different size in the shale, a set of adsorption processes happened in pores of different sizes are considered. A first‐order multi‐process model is developed, which can perfectly fit the adsorption kinetic data of CH4 and CO2 obtained at different temperatures. The modeling and pore characterization results indicate that an adsorption process happens in micropores/mesopores (<50 nm) and another adsorption process happens in macropores (>50 nm) in the Wufeng shale. Gas diffusion mechanism is dominant in micropores/mesopores, and gas seepage mechanism is dominant in macropores. The effective diffusivity of CO2 is smaller than that of CH4, because the adsorption of large amount of CO2 in the pores hinders its diffusion. The coefficients related to the diffusion and seepage have no obvious trend with temperature.
Chronic myelomonocytic leukemia: 2022 update on diagnosis, risk stratification, and management
Authors: Patnaik Mrinal M. , Tefferi Ayalew 
Published: January 2022

AbstractDisease OverviewChronic myelomonocytic leukemia (CMML) is a clonal hematopoietic stem cell disorder with overlapping features of myelodysplastic syndromes and myeloproliferative neoplasms, with an inherent risk for leukemic transformation (~15% over 3–5 years).DiagnosisDiagnosis is based on the presence of sustained (>3 months) peripheral blood monocytosis (≥1 × 109/L; monocytes ≥10%), usually with accompanying bone marrow dysplasia. Clonal cytogenetic abnormalities occur in ~30% of patients, while >90% have somatic gene mutations. Mutations involving TET2 (~60%), SRSF2 (~50%), ASXL1 (~40%), and the oncogenic RAS pathway (~30%) are frequent, while the presence of ASXL1 and DNMT3A mutations and the absence of TET2 mutations negatively impact overall survival.Risk‐StratificationMolecularly integrated prognostic models include the Groupe Français des Myélodysplasies, Mayo Molecular Model (MMM), and the CMML specific prognostic model. Risk factors incorporated into the MMM include presence of truncating ASXL1 mutations, absolute monocyte count >10 × 109/L, hemoglobin <10 g/dL, platelet count <100 × 109/L, and the presence of circulating immature myeloid cells. The MMM stratifies CMML patients into four groups: high (≥3 risk factors), intermediate‐2 (2 risk factors), intermediate‐1 (1 risk factor), and low (no risk factors), with median survivals of 16, 31, 59, and 97 months, respectively.Risk‐adapted therapyHypomethylating agents such as 5‐azacitidine and decitabine are commonly used, with overall response rates of ~40%–50% and complete remission rates of ~7%–17%; with no impact on mutational allele burdens. Allogeneic stem cell transplant is the only potentially curative option but is associated with significant morbidity and mortality.
A Non‐Singular, Field‐Only Surface Integral Method for Interactions between Electric and Magnetic Dipoles and Nano‐Structures
Authors: Sun Qiang , Klaseboer Evert 
Published: January 2022

AbstractWith the development of condensed‐matter physics and nanotechnology, attention has turned to the fields near and on surfaces that result from interactions between electric dipole radiation and mesoscale structures. It is hoped that studying these fields will further the understanding of optical phenomena in nano‐optics, quantum mechanics, electromagnetics, and sensing using solid‐state photon emitters. Here, a method for implementing dynamic electric and magnetic dipoles in the frequency domain into a non‐singular field‐only surface integral method is described. It is shown that the effect of dipoles can conveniently be described as a relatively simple term in the integral equations, which fully represents how they drive the fields and interactions. Also, due to the non‐singularity, this method can calculate the electric and magnetic fields on the surfaces of objects in both near and far fields with the same accuracy, which makes it an ideal tool to investigate nano‐optical phenomena. The derivation of the framework is given and tested against a Mie theory alike formula. Some interesting examples are shown involving the interaction of dipoles with different types of mesoscale structures including parabolic nano‐antennas and gold probes.
Experimental and Computational Studies on the Directing Ability of Chalcogenoethers in Palladium‐Catalyzed Atroposelective C−H Olefination and Allylation
Authors: Liao Gang , Zhang Tao , Jin Liang , Wang Bing‐Jie , Xu Cheng‐Kai , Lan Yu , Zhao Yu , Shi Bing‐Feng 
Published: January 2022

AbstractWe present herein our experimental and DFT computational studies on the directing ability of chalcogenoether motifs in Pd‐catalyzed atroposelective C−H functionalization. The thioether motif was found to be a superior directing group compared to the corresponding ether and selenoether in terms of reactivity and enantiocontrol. Remarkably, DFT calculation provided a predictive model for the optimization of reaction conditions and the interpretation of the origin of enantioselectivity. Both Pd‐catalyzed enantioselective C−H olefination and allylation reactions were successfully developed using chiral phosphoric acids as efficient ligands, providing a broad range of axially chiral biaryls in good yields with excellent enantioselectivities. The highly enantio‐ and diastereoselective construction of polyaryls bearing multiple stereogenic axes, gram‐scale reaction and various chemical transformations make this protocol more attractive and significant.