bluuebunny/crossref_metadata_2025_split huggingface dataset:
تسبيب القرارات الإدارية في النظام الإداري السعودي في ضوء أحكام ديوان المظالم
Authors: الكبيري محمد 
Published: March 2022

يعد التسبيب في القرارات الإدارية ضمانة مهمة لحقوق الإنسان، ومما لا شك فيه أن التسبيب أو عدم التسبيب للقرار الإداري له سلبيات وله إيجابيات لكلا الطرفين، وتظهر أهميته في الآتي:

تظهر أهمية الموضوع من خلال إبراز الدور الذي يسهم فيه مبدأ تسبيب القرارات الإدارية في حمادة حقوق وحریات الأشخاص الطبیعیین والاعتباريين.
أن تسبيب القرار الإداري هدفه الأسمى إظهار قيام الإدارة بعملها على الوجه الصحيح لتبتعد عن الريبة في استقامة أعمالها وعدالة موازينها.
الحد من سوء استخدام السلطة والتعسف الإداري، وتعزیز سیاسة الوضوح الإداري.

وتظهر إشكالية هذه الدراسة في أن كثيرا من الدول الحديثة تعتبر مبدأ تسبيب القرارات وجوبي، ومن ثمّ يعد من المبادئ الدستورية التي يجب أن ينص عليها في الدساتير، وفي أغلب دولنا العربية لايزال هذا المبدأ في نطاقه الضيق اي لا تسبيب إلا بنص.
وقد بينت أهم أهدافي في البحث فيما يأتي:

تحديد مفهوم تسبيب القرارات الإدارية وتميزها عن السبب في القرارات الإدارية.
تحديد ضوابط وقيود ممارسة تسبيب القرارات الإدارية في النظام الإداري السعودي.
تبيان موقف القضاء الإداري ممثلا في ديوان المظالم لبعض قرارات تسبيب القرار الإداري في النظام السعودي.
إبراز موقف المنظم في المملكة العربية السعودية من مبدأ تسبيب القرارات الإدارية ومقارنته بموقف بعض الدول كالمصري.
THE DIFFERENCE BETWEEN SYNCHRONOUS AND ASYNCHRONOUS ONLINE LEARNING COMMUNICATION DURING COVID-19 PANDEMIC
Authors: Palupi Muji Endah 
Published: March 2022

Online learning is available in various ways and methods. To find out the difference between online communication and material presented, it must be appropriate so that it can be well received by students. For that, every university must prepare well. Learning online communication that is not ready can automatically disrupt the course of teaching and learning activities. Differences in Synchronous and Asynchronous Online Learning Communication. Synchronous communication is a learning communication carried out in a real time communication system. Lecturers can deliver material in class directly to students. Synchronous online, lecturers can still do virtual learning by online class media. Asynchronous communication is learning communication that is not limited in time. In the meaning lecturer provides material that can be used as a reference for students. The material can be learn by students in the form of PPT files, PDFs, and videos. The Covid-19 pandemic has affected almost all aspects of human life, to break the chain of virus transmission, Indonesian government take of health protocol regulations. The condition of education has huge impact. However, education must continue. Learning process during in emergency is carried out by Synchronous and Asynchronous learning
Common Cellular Events Implicated in the Regulation of Cold Stress Tolerance and Soft Rot Resistance Induced by Metabolites of Pseudomonas Aeruginosa in Phalaenopsis Orchids
Authors: Chuang Huey-wen , Tseng Tony-Seung , Hsieh Hsin-Yi , Kao Tzu-Chuan , Chen Guan-Hung 
Published: March 2022

Microbial metabolites induce diverse plant physiological responses. In this study, Pseudomonas aeruginosa strain Y1 was shown to produce metabolites exhibiting a high capacity for metal chelation and moderate reducing power activity. In Phalaenopsis orchids, treatments with Y1 metabolites (Y1M) increased the contents of carbohydrates and lignin and the activity of antioxidant enzymes and phenylalanine ammonia lyase (PAL). Y1M treatments increased the tolerance to cold stress (10°C) by reducing malondialdehyde (MDA) accumulation and electrolyte leakage in a 10°C growth environment and enhanced disease resistance against bacterial soft rot caused by Erwinia chrysanthemi. Protein analyses indicated that, in response to Y1M treatment, the protein levels of antioxidant enzymes, such as catalase (CAT) and ascorbate peroxidase (APX); pathogenesis-related (PR) proteins, such as PR-2 and PR-3; and lipoxygenase 1 (LOX1) were increased in Phalaenopsis orchids. Transcriptome analyses indicated that Y1M increased transcription associated with the iron-deficient response mediated by miRNA, the regulation of reactive oxygen species (ROS) homeostasis, and Jasmonic acid (JA) biosynthesis/perception. Gene groups associated with the induced defense response, including cellular events of pattern-triggered immunity (PTI), hypersensitive response (HR), synthesis of the PR protein, and callose formation, were also increased by the Y1M treatments. Transcription factors involved in regulating the cold stress response, such as C-repeat binding factor 1 (CBF1), and cell strengthening, such as MYB26, also had increased expression. In summary, Y1M can activate cellular pathways implicated in regulating stress tolerance shared by cold stress and bacterial invasion.
Meckel´s diverticulum associated to bowel obstruction caused by intussusception.
Authors: Torrecillas Cabrera MM , Moya Sánchez E , Fernández Navarro L 
Published: March 2022

Resumen

La invaginación intestinal en adultos jóvenes constituye una entidad infrecuente, y en pocos casos da lugar a una obstrucción, además suelen ser secundarias a otra patología subyacente.

Se describe el caso de un varón de 18 años que acude a urgencias con cuadro de abdomen agudo, y es diagnosticado mediante radiografía simple y ecografía de obstrucción intestinal secundaria a invaginación de ileo-ileal, con divertículo de Meckel asociado.
Lemmel syndrome: a rare cause of intermittent obstructive jaundice.
Authors: Garrido Márquez I , Lucena González MJ , García Pérez P 
Published: March 2022

Resumen

El síndrome de Lemmel consiste en un cuadro de ictericia obstructiva secundaria a un divertículo periampular en ausencia de otras causas de obstrucción, que se acompaña de dolor abdominal o incluso colangitis aguda. La mayoría de los pacientes con síndrome de Lemmel presentan ictericia, dolor abdominal, colangitis o pancreatitis aguda, pudiendo estos síntomas ser intermitentes. Su diagnóstico puede hacerse mediante visualización directa en la colangiopancreatografía retrógrada por endoscopia o bien por imagen, utilizando la TC y la RM por su capacidad multiplanar.

El tratamiento no está justificado en casos asintomáticos. En cambio, en presencia de síntomas, la esfinterotomía mediante CPRE es el tratamiento de elección.
Uji Kelayakan Panduan Praktikum Perkembangan Hewan Berbasis Inkuiri pada Materi Metamorfosis
Authors: Ayu Mutoharoh  , Jodion Siburian  , Winda Dwi Kartika  
Published: March 2022

Penelitian bertujuan untuk menghasilkan panduan praktikum berbasis inkuiri yang layak dari segi materi dan media. Berdasarkan angket studi pendahuluan yang diisi oleh mahasiswa yang telah mengontrak mata kuliah perkembangan hewan, ditemukan berbagai permasalahan pada praktikum metamorfosis. Permasalahan tersebut diantaranya mahasiswa masih mengalami kesulitan mendapatkan hasil yang sesuai dengan teori, masih membutuhkan panduan praktikum yang lebih detail, penggunaan alat dan bahan yang lebih spesifik, dan penambahan prosedur kerja panduan praktikum yang lebih rinci. Oleh karena itu, perlu dikembangkanlah panduan praktikum perkembangan hewan pada materi metamorfosis. Penelitian pengembangan menggunakan model 4D (Four D). Penelitian juga mengulas tahap pengembangan pada tahap 4D (Four D). Analisis data yang dilakukan adalah deskriptif kualitatif dan kuantitatif. Hasil penelitian diperoleh rata-rata validasi materi tahap 1 sebesar 51,18% (kategori cukup baik), validasi tahap 2 sebesar 73,38%, dan validasi tahap 3 sebesar 91,06%. Sedangkan validasi media tahap 1 diperoleh sebesar 37,68% (kategori cukup baik), validasi tahap 2 sebesar 61,44% (kategori baik), dan validasi tahap 3 sebesar 90,17% (kategori sangat baik). Proses validasi materi dan media dilakukan bertahap dan mengalami perbaikan panduan praktikum metamorfosis dan disimpulkan layak untuk digunakan.
A 0.5 - 5.5 GHz Distributed Low Noise Amplifier
Authors: Lourandakis Errikos , Plessas Fotis , Kalivas Grigorios 
Published: March 2022

The Low Noise Ampli¯er (LNA) presented in this work is a 3-stage fully integrated Distributed Amplifier (DA) using a 0.35 ¹m BiCMOS SiGe process. The circuit was designed for integration and for this reason the di®erent parasitical phenomena that concern the spiral inductors and the packaging were evaluated in detail. Noise Figure (NF) and linearity were also investigated through simulations. The designed amplifier offers a gain of about 7 dB with a gain flatness of 0.6 dB over the bandwidth 0.5-5.5 GHz and an average noise ¯gure of 3.2 dB. The RF input port is matched to 50 ­, with worst-case return loss of 10 dB over the whole bandwidth. The input-referred P1dB point varies from 2.2 dBm at 1 GHz to 3.1 dBm at 5 GHz. Within the same bandwidth the IP3 varies from 6 dBm to 13.3 dBm. The estimated power consumption is 82.5 mW from a 3V power supply.
Robust H State-Feedback Control Design for Nonlinear Time-Varying Delay Systems Based on An LMI Approach
Authors: Assawinchaichote Wudhichai 
Published: March 2022

This paper examines the problem of designing a robust H state-feedback controller for a class of nonlinear systems with time-varying delay described by a Takagi-Sugeno (TS) fuzzy model. Based on a linear matrix inequality (LMI) approach, we develop a robust H state-feedback controller which guarantees the L2-gain of the mapping from the exogenous input noise to the regulated output to be less than some prescribed value for this class of nonlinear systems. A numerical example is provided to illustrate the design developed in this paper.
The Simplified Control of Three-Phase Four-Leg Shunt Active Power Filter for Harmonics Mitigation, Load Balancing and Reactive Power Compensation
Authors: Po-Ngam Sakorn 
Published: March 2022

In this paper, the simplified control of three-phase four-leg shunt active power filter for harmonics mitigation, load balancing and reactive power compensation is proposed. In order to calculate the harmonics, current imbalance and reactive power, the load currents are detected and transformed to dq0 variables. By using the low-pass filter, the fundamental active power current can be separated from the d-axis current. Therefore, the commanded active power filter currents are consist of d-axis harmonic currents, q-axis and 0-axis currents. These components are regulated by the PI controller with feedforward utility voltage via the four-leg space vector inverter. Moreover, the design guidelines of space vector phase-locked loop (PLL), current controllers and DC-bus voltage controller are also presented. Validity of the proposed control schemes is confirmed by the simulation.
Reduced-Nonlinear Effect on Magnetic Recording Channels Using MMSE Equalizers
Authors: Sirirungsakulwong A. , Puttarak N. , Supnithi P. 
Published: March 2022

This paper considers the nonlinear effect on magnetic recording channels in order to reduce the system distortion. In this work, we propose the designed MMSE equalizer and target for a high density perpendicular magnetic recording to combat the nonlinear transition shift (NLTS) in a channel characterized by jitter noise and additive white Gaussian noise (AWGN). Due to a complex nature of nonlinear effects, the nonlinearity of a read-back signal is designed by the second order Volterra model consisting of linear and nonlinear part. The bit-error rate (BER) of the nonlinear-affected system using the designed MMSE equalizer is significantly decreased. The results show that the proposed minimum mean square error (MMSE) equalizer with constraint can decrease the inter-symbol interference (ISI) that causes nonlinearity and also improve performance.
Impact of Strain on Fully Depleted Strained Gate Stack Double Gate MOSFET: A Simulation Study
Authors: Pradhan K. P. , Mohapatra S. K. , Sahu P. K , Parija S. 
Published: March 2022

The fusion of strain engineering and multigate technology is implemented to design an advanced MOSFET model i.e. Fully Depleted Strained Gate Stack Double Gate (FD-S-GS-DG) in nanoscale regime. Both DC and Analog performances of FD-S-GS-DG are analyzed by varying the Ge mole fraction (X). The sensitivity of crucial device parameters like threshold voltage (Vth), subthreshold swing (SS), on-current (Ion), off state leakage current (Ioff), on-off ratio (Ion/Ioff), transconductance (gm), output conductance (gd), early voltage (VEA), gain (AV), transconductance generation factor (TGF) towards X are successfully evaluated and presented. From the obtained results, by considering appropriate value of X, one can enhance the device performance by an immense aspect.
Performance Improvement of ACO-OFDM Indoor Optical Wireless Transmissions Using Partial Pre-Equalization
Authors: Panta Jariya , Saengudomlert Poompat , Sripimanwat Keattisak 
Published: March 2022

This paper analyzes the performances and presents the benets of partial pre-equalization for indoor optical wireless transmissions based on asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) with intensity modulation and direct detection (IM/DD). In particular, for diffuse indoor optical wireless channels, partial pre-equalization can reduce the optical transmit power over post-equalization at the same target bit error rate (BER) for point-to-point transmissions even with imperfect channel knowledge. To further im-prove its performance, bit loading is considered to minimize the optical transmit power of ACO-OFDM while maintaining a constant target BER. In addition, broadcast transmissions to multiple users with possibly dierent channel qualities are considered, where pre-equalization is not applicable. Finally, we specify an appropriate channel estimate at the transmitter for such broadcast transmissions.
Policies for Channel Allocation in Cognitive Radio Networks using Game Theory
Authors: Bhattarai Amulya , Charoenlarpnopparut Chalie , Suksompong Prapun , Komolkiti Patrachart 
Published: March 2022

Cognitive radio networks evolve according to the actions of selsh users who act independently. The eventual state reached in most of the cases by such a system is a Nash Equilibrium (NE). Multiple NE with dierent quality may exist. In this work we consider the problem of allocating channels to multiple transceivers. Based on policies derived from various network metrics we develop a way to initialize the allocation and choose the appropriate channel for each user to push the system towards a higher normalized cumulative total throughput of the CRN. A novel equation to allocate channels is also derived. The improvement is conrmed by our simulation results.
A Review on Phytochemicals and Pharmacological Activities as Ethnomedicinal Uses of Duku (Lansium domesticum Corr.)
Authors: Lubis Muhammad Fauzan , Hasibuan Poppy Anjelisa , Syahputra Hafid , Astyka Ririn 
Published: March 2022

BACKGROUND: Lansium domesticum Corr. is a plant that is easily found in Indonesia. People use the fruit to be sold because it has a good taste. Some people use other parts of the plant as medicine. This plant has great potential to be developed as a standardized traditional medicine.

AIM: This article review aims to collect information on secondary metabolite compounds from L. domesticum Corr. and its pharmacological activities as antioxidants, antibacterials, and cytotoxics.

METHODS: Data on L. domesticum Corr. or duku were sought and collected for this miniature estimate and perspective. We use the major search engines with specific keywords such as L. domesticum Corr.; duku; morphology; pharmacological effects; secondary metabolites; in vitro; and in vivo.

RESULTS: This review shows that L. domesticum Corr. have antioxidant, antibacterial, and cytotoxic activity of various compounds based on the test method used.

CONCLUSIONS: Some parts of L. domesticum Corr. such as leaves, fruit, fruit skins, and seeds contain secondary metabolite compounds. The most common type of active compound is the steroid/terpenoid group. These compounds are responsible for their pharmacological activities such as antioxidants, antibacterials, and cytotoxics.
Molecular screening for fragile X syndrome in children with unexplained intellectual disability and/or autistic behaviour
Authors: Stoyanova Milena , Hachmeriyan Mari , Levkova Mariya , Bichev Stoyan , Georgieva Miglena , Mladenov Vilhelm , Angelova Lyudmila 
Published: March 2022

Introduction: Fragile X syndrome (FXS, OMIM #300624) is the most common inherited form of intellectual disability and the leading monogenic cause of autism.&nbsp;
Aim: To present our experience with selective screening for FXS among high-risk children with intellectual disability/developmental delay/autistic behaviour and to further prove the importance of performing selective screening in a high-risk population.
Materials and methods: Fifty-two children (45 boys and 7 girls) hospitalized in pediatric clinics or referred to genetic counseling services were tested with triplet repeat primed PCR based commercial kit. The mean age of participants was 6 years (the youngest was 2 years old, the oldest - 15 years old). These patients were selected based on the presence of at least one of the following clinical features: developmental delay, intellectual disability, and autistic-like behaviour.
Results: All patients presented with developmental delay, including language delay. Intellectual disability and autistic-like behaviour were the most consistent features. Thirty-three children (63.4%) were with intellectual disability. Autism and autistic-like behaviour were observed in 22 patients (42.3%). Only 9 male patients (17.3%) presented with dysmorphic features typical for FXS. Three boys (5.7%) were found to be affected and two of their mothers - premutation carriers.&nbsp;
Conclusions: The present study is the first attempt for molecular genetic selective screening for FXS among high-risk groups in north-eastern Bulgaria. Screening for FXS helps in making a definitive diagnosis along with providing genetic counseling to the family which includes reproductive planning and risk assessment.
Immunological response to nonresorbable barrier membranes used for guided bone regeneration and formation of pseudo periosteum: a narrative review
Authors: Giragosyan Krikor , Chenchev Ivan , Ivanova Vasilena , Zlatev Stefan 
Published: March 2022

Here we review the knowledge on the local biological immunological response (formation of &ldquo;pseudo periosteum&rdquo; of the host) to two types of nonresorbable membranes used in the horizontal and vertical alveolar ridge augmentation: the titanium-reinforced polytetrafluoroethylene membrane and the titanium mesh membrane. A literature search was conducted including available in vitro, in vivo, and clinical studies on cellular and molecular immunological response to these two types of nonresorbable membranes, in particular the formation of &ldquo;pseudo periosteum&rdquo;.
Emerging data demonstrates that despite barrier membranes being considered as bioinert, they still elicit an immunological response from the body. The outcome of this reaction is the formation of a thin fibrous capsule referred to as &ldquo;pseudo periosteum&rdquo;.
There are almost no biomaterials that are truly bioinert and this makes no exception for the nonresorbable membranes used in the guided bone regeneration. This iatrogenically made tissue is hypothesized to have a number of advantages and drawbacks. However, more research is needed in that area to truly understand its nature and importance to the guided bone regeneration process.
Quality of life of patients with cardiac pacemaker: levels, associated characteristics, and the impact of anxiety and depression
Authors: Polikandrioti Maria 
Published: March 2022

Introduction: Implantation of a permanent cardiac pacemaker (PPM) improves recipients&rsquo; quality of life (QoL). However, psychiatric disturbance may adversely affect QoL and undermine clinical outcomes.&nbsp;
Aim: To explore impact of anxiety and depression on QoL of PPM recipients.&nbsp;
Materials and methods: A hundred and fifty PPM recipients were enrolled. Data collection was performed by completing the Hospital Anxiety and Depression Scale (HADS) and the SF-36 Health Survey (SF-36). Demographic characteristics were also included. The statistical significance level was p<0.05.
Results: Almost a quarter of the patients experienced anxiety (25.3%) and depression (26.0%). In terms of QoL, patients showed moderate to high levels in social functionality, energy/fatigue, emotional well-being and pain (median: 50, 60, 72, and 67.5, respectively) and poor levels in physical functioning, physical role and emotional role (medians: 22, 0, and 0 respectively). In addition, patients had moderate levels of general health (median 48.5). All QoL subscales were negatively associated with anxiety and depression of patients on a univariate level (p<0.05). Regarding demographic variables affecting QoL, age was statistically significantly associated with physical role (p=0.025), emotional role (p=0.005), social functioning (p=0.033), and pain (p=0.018). Furthermore, physical role was statistically significantly associated with number of children (p=0.024), emotional role with education level (p=0.011), social functioning with family status (p=0.018), and general health with residency (p=0.006).&nbsp;
Conclusions: Demographic characteristics and anxiety/depression are related with QoL. A better understanding of these associations may help clinicians in planning rational and cost-effective interventions.
RP-HPLC method development and validation for simultaneous estimation of telmisartan, rosuvastatin calcium, and amlodipine besylate in combination
Authors: Mistry Rujuta P. , Shah Chainesh , Jat Rakesh 
Published: March 2022

Introduction: Dyslipidemia-hypertension proves to be a major risk factor for cardiovascular diseases. In order to achieve better adherence and cost-effectiveness than free equivalent combination therapies, a fixed-dose combination therapy with telmisartan (TEL), rosuvastatin calcium (ROS) and amlodipine besylate (AML) is required in this type of patients.&nbsp;
Aim: A simple, selective and reproducible reverse phase high performance liquid chromatography (RP-HPLC) method has been developed and validated for estimation of telmisartan, rosuvastatin calcium, and amlodipine besylate in synthetic mixture.&nbsp;
Materials and methods: Chromatographic separation was performed on a reversed-phase Luna C18 100&Aring; column (250 mm &times; 4.6 mm i.d., particle size 5 &mu;) using an isocratic elution of mobile phase consisting of methanol and acetonitrile (pH 3.5 adjusted by ortho-phosphoric acid) (60:40 v/v) at a flow rate of 1.0 ml/min.&nbsp;
Results: Ultraviolet (UV) detection was performed at 242 nm and retention time of telmisartan, rosuvastatin calcium and amlodipine besylate was found to be 2.67, 4.70, and 7.44 min, respectively. The calibration curve was linear (correlation coefficient >0.999) in the selected range of analyte.&nbsp;
Conclusions: The method was validated for accuracy, precision, linearity, limit of detection, limit of quantitation and ruggedness. The system suitability parameter, such as theoretical plate, asymmetry, and resolution between standard five replicate were well within the limits. &nbsp;