bluuebunny/crossref_metadata_2025 huggingface dataset:
COVID-19 and Pregnancy
Authors: Sehgal Alka , Aggarwal Neelam
Published: August 2022

The
SARS-CoV-2 pandemic has emerged as an unprecedented challenge to the current
medical practice, including obstetrics. Being an acute situation, there is limited
experience of the impact of COVID-19 in pregnancy. Various management protocols
are being evaluated and modified frequently to address key concerns of maternal
and neonatal health. Pregnancy is a unique bundle of two lives, and the physiological
adaptation to the dual life adds to the uniqueness. The effect of COVID- 19 and
its treatment on pregnancy (mother and fetus) and vice-versa, is a common quest
for all pathologies. The other concerns are vertical and horizontal
transmission in antepartum, intrapartum, and postpartum periods, respectively.
The immunosuppression as a part of physiological changes during pregnancy
apparently raises apprehension of higher risk of viral infection or probability
of severity of infection during pregnancy. The same has also been observed with
previous virus infections in history like severe acute respiratory syndrome
(SARS), Middle East respiratory syndrome (MERS), etc.,
although available literature suggests that the risk of developing COVID-19 for
pregnant women is not similar to the non-pregnant adult population. The small
risk of developing a serious condition during pregnancy is inevitable, and the
contagiousness of the virus is a major concern for the neonate and attending
family. Some overlapping features of complicated pregnancy with severe COVID-19
require attention. Social distancing, anxiety, and psychological stress need to
be kept in mind. There is an impact of financial stress on family; domestic
violence can also not be undermined during this crisis period. Access to health
facilities may also be affected in developing countries due to the lockdowns,
quarantine of pregnant women, caretakers, or health care workers (HCW), etc. The
aerosol production during the intrapartum phase is challenging for both vaginal
and abdominal routes of delivery, but the management of sudden catastrophic,
life-threatening conditions associated with pregnancy can be a real threat for
the team of health care workers. It is still early to comment on the long-term
effects of the viral infection on the foetus, especially the exposure during
the rapid embryogenesis period.
Otolaryngological and Ocular Manifestations in COVID-19
Authors: Bansal Sandeep , Arora Kanika , Bansal Reema
Published: August 2022

An adult patient with COVID-19 usually presents with symptoms of flu like dry
cough, myalgia, headache, fever with chills, breathing difficulty and sore
throat. Unlike common flu, acute anosmia without nasal obstruction, hyposmia
and dysgeusia are considered as early signs and warrant self-isolation and
testing. Children usually have milder symptoms with a good prognoses. Nasopharynx
and oropharynx being the reservoirs of the viral load, Otolaryngologist becomes
the most vulnerable for infection transmission while screening, sampling or
operating on any such patient.

Ocular involvement in COVID-19 is extremely low, and manifests mainly as conjunctivitis,
in the form of conjunctival hyperaemia, chemosis, increased secretions and/or
epiphora. Although it is presumed to be self-limiting, tears are potential
source of SARS-CoV-2 transmission. The nature and proximity of ophthalmic
examination makes the eye care personnel highly prone to COVID-19 infection.
There are reports of ophthalmologists getting infected with COVID-19, and
succumbing to this disease. Besides the recommended practice guidelines,
surgical interventions in ENT and ophthalmology practice should be limited to
urgent and semi-urgent indications.
COVID-19 in the Geriatric Population
Authors: Narang Udit , Sharma Ani Abhishek , Mohindra Ritin , Bhalla Ashish , Suri Vikas
Published: August 2022

The
second pandemic of the 21st century,
the Coronavirus Disease – 2019, has kept the entire world on its toes. The virus, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), seems to have an entire deck of tricks up its
sleeve. The brash and acerbic disease course has left the entire world gasping.
A sour understanding of the virus evolves, our knowledge base at this point is
rather nascent. While the rate of infection is highest among the younger age
groups, the Case Fatality Rate seems to be five to seven-fold higher in patients aged 65
years and above. With unforeseen restraints and stern preventive policies in
place worldwide, the core principles of Geriatrics seem to have taken a
backseat. Social distancing might’ve turned into social
suppression, and the phenomena of immunosenescence and
frailty leave our elderly population with an oligosymptomatic illness,
which is, on many occasions, neglected on a personal, familial or even
healthcare level, thus, erring on the gravity of the illness. Patients and
medical personnel in hospice facilities and long-term
care facilities (LTCFs) face unique and unprecedented
challenges. With atypical presentations, multimorbidities, and multiple
psychosocial facets, the Coronavirus
Disease-2019 presents a rather interesting challenge
in the care and management of older adults.
Drug Repurposing Studies in the Progress to Combat COVID-1
Authors: Sriram Anitha , Medtiya Pravin , Kumar Khatri Dharmendra , Bala Singh Shashi , Madan Jitender , Kumar Singh Pankaj
Published: August 2022

Currently, there are no treatment options for the deadly emerging COVID-19 infectious disease. The process of identifying new potential clinical applications for
existing licensed and approved drugs is referred to as “drug repurposing.” It is also
known as drug repositioning or drug re-profiling, or drug re-tasking, which is widely
regarded as both cost-effective and efficient. Since few drugs have absolute selectivity
of action, many other drugs have the potential to work against other diseases or new
diseases. Clinical trials should begin with Phase III or IV studies because these trials
use substances with proven biochemical and physiologic effects (which were already
proven in Phase I and II clinical studies), potentially saving money and time. Hence, it
is regarded as a useful technique for drug discovery because it takes less time and
money to identify a therapeutic agent. This review summarizes the various repurposed
drugs and possible new avenues for drug discovery to combat COVID-19. The
Casirivimab and Imdevimab combination (Ronapreve) is approved for COVID-19
disease treatment based on regulatory reliance on the USFDA and EMA.
Turning Towards Phytopharmaceuticals to Revitalize the Immune System to Fight Against COVID-19
Authors: Kumar Khatri Dharmendra , Tryphena K Pushpa , Kumar Rahul , Sriram Anitha , Kumar Singh Pankaj , Kaur Sodhi Rupinder , Madan Jitender , Bala Singh Shashi
Published: August 2022

The knowledge and lessons learned from the prior severe acute respiratory
syndrome (SARS) epidemics were inadequately materialized and mandated superior
techniques and strategies in the health care sector. Currently available preventive and
therapeutic management options are inadequate to deal with this pandemic of COVID-19. Consequently, the phenomenon of excessive cytokine and chemokine storm clearly
depicts a predominant dysregulation of host immune defense. Hence, the implication of
optimal immunity boosters to defend against viral infections has been considered
effective in addition to balanced nutrition to curtail the damage to the lungs. Plant based natural products, including extracts, enriched fractions, essential oils, photo
molecules, flavors, and fragrances, have attracted both pharmaceutical as well as
cosmetic industries. In this chapter, we have comprehensively highlighted the
significance of restructured immunity in the prevention of COVID-19. c-ATP (Cellular
Adenosine Triphosphate) levels may potentially be considered as a decisive element for
maintaining the innate immunity shield against the SARS-CoV-2 infection.
Furthermore, implication of natural products, like Withania somnifera, Tinospora
cordifolia, Curcuma longa, Glycyrrhiza glabra, and Andrographis paniculata, has been
validated by the decipherment of their molecular mechanisms in immunomodulation.
We propose the phospholipid complexation technique coupled with 3D printing
technology to surmount the physicochemical and biopharmaceutical hurdles in order to
scale up the use of phytopharmaceuticals with desirable immunomodulatory potential.
Thermal Modeling of Greenhouse Solar Dryers
Authors: Shrivastava Amit , Gaur M.K. , Singh Pushpendra
Published: August 2022

In agricultural applications, the preservation of crops is essential. The most
suitable method of preserving the crop is drying. The traditional methods used for
drying include mechanical drying, where hydrocarbon fuel or burnable materials are
used as a source of heat. The other method is open sun drying, where crops are placed
in an open space. Both methods affect the quality and vital nutritious properties of the
crops. The mechanical drying processes are costly, whereas the latter is dependent on
the weather condition. To overcome these limitations, solar dryers are developed.
Mathematical modeling is highly important for the perfect design and improvement
of solar dryers. The performance of the drying system depends upon the different
parameters that can be optimized using thermal modeling. This chapter covers the
thermal modeling of greenhouse solar dryers for active and passive modes.
Applications and Development of Solar Systems in Buildings
Authors: Shah Rishika , Pandit R.K. , Gaur M.K.
Published: August 2022

Many harmful effects on the environment can be observed over the past
decades due to the extensive usage of non-renewable energy. Most discussed and
harmful are the ever-changing global climate change scenarios and their aftermath.
As a point of fact, a major part of the world’s energy consumption is dependent on
non-renewable energy sources, such as petroleum, oil, coal, and gas. Unquestionably,
these fossil fuels contribute a great deal to greenhouse gas emissions, carbon dioxide,
methane, etc., which further leads to global health issues, global warming, and climate
change. With the emergence of sustainable development as a holistic concept since
the late 1980s, the issue of global warming has been given prominent attention. It is
evident that failure to curb global warming has led to slower progress in achieving
sustainable development. About 30% of energy demand is from the built environment
sector, which is also responsible for contributing 28% of carbon emissions and
continues to add an estimated 1% every year, according to reports by UN Environment
[1]. Therefore, the fossil fuel-based energy systems are antagonistic with the goals of
sustainable development agendas. Hence, using renewable sources in harnessing
clean energy for the built environment has not remained a choice but a fundamental
need. Solar energy is one of the cleanest renewable energy sources that provide
solutions to climate change and global warming. Often termed as the alternative
energy source against oil and coal-based energy sources, solar energy has the potential
for abundant availability and is an economical way with a lower ecological and
environmental footprint, leading to a better quality of life. Thus, there is a massive
amount of global interest in harnessing solar energy for its application and
development in building systems.
Specific Diagnoses and Management Principles of the Urinary and Genital Tract Diseases
Authors: KARCIOGLU Ozgur , YENİOCAK Selman , HOSSEINZADEH Mandana , Bahar SEZGIN Seckin
Published: August 2022

Urinary tract infections (UTIs) and genital tract diseases (GTD) are among
the most common infectious diseases with female predominance. On the other hand,
acute epididymitis and orchitis are the most common GTDs which cause scrotal pain in
adult males. Testicular torsion is a true medical emergency with vascular compromise
and mandates immediate intervention to beware of serious complications. Although a
majority are self-limiting diseases which can be treated easily, rapid diagnosis and
management of certain UTIs and GTDs are a must to prevent grave outcomes. The
infections may inflict the lower and/or the upper parts of urinary tract which also
determines the severity of the disease. The urinary stone disease generally presents
with ureteral colicky pain, blunt flank pain, nausea/vomiting, and hematuria with a
male predominance. Most patients are managed easily in the acute setting but some are
prone to deterioration with protracted urinary obstruction and resultant renal damage.
The utilization of reliable, easy-to-use diagnostic tools with high accuracy is the key to
expedient detection, identification and treatment. Ultrasound provides invaluable
information in point-of-care diagnosis of most urinary tract diseases in both sexes.
Management should be individualized in accord with the patients’ signs and symptoms,
general status and outcome estimations.
Static Analysis of Interval Finite Element
Authors: Mo Wenhui
Published: August 2022

Four methods of interval finite element for static analysis are proposed.
Using the second-order and third-order Taylor expansion , interval finite element for
static analysis is addressed. Neumann expansion of interval finite element for static
analysis is formulated. Interval finite element using Sherman -Morrison-Woodbury
expansion is presented. A new iterative method (NIM) is used for interval finite
element calculation. Four methods can calculate the upper and lower bounds of node
displacement and element stress.
The Effect of Preheating Using Microwave, Steam, and Oven on the Quality of Ponorogo Chicken Satay
Authors: Fradiana Avida , Widati Aris Sri , Rosyidi Djalal
Published: August 2022

This study aims to determine the effect of different preheating methods on the quality of Ponorogo chicken satay. The study used a Nested Completely Randomized Design. The preheating methods used include microwave, steam, and oven with a preheating time of 5 and 10 minutes. The parameters used are physical quality (pH, WHC and cooking loss), chemical quality (moisture, protein and fat content), and Polycyclic aromatic hydrocarbons (PAHs). Data were analyzed using Analysis of Variance (ANOVA), if the results of the analysis obtained data that were significantly different or very significant, it would be continued with Duncan's Multiple Range Test (UJBD) and PAHs analysis of descriptively. The results of statistical analysis showed that the use of different preheating methods had a very significant effect (P<0.01) on pH and fat content had a significant effect (P<0.05) but had no significant effect (P>0.05) on Water Holding Capacity (WHC), cooking loss, moisture and protein content. The duration of preheating in heating method had a significant effect (P<0.05) on WHC and moisture content, but it had no significant effect (P>0.05) on pH, cooking loss, protein and fat content. PAHs content of Ponorogo chicken satay with long heating using microwave (23.35 mg/kg and 5.99 mg/kg), steam (5.48 mg/kg and not detected), oven (8.22 mg/kg and 7.31 mg/kg). The conclusion of this study that the use of preheating method with a long time can reduce the content of Polycyclic aromatic hydrocarbons (PAHs), physical, chemical, organoleptic quality and the best model is obtained in the steam method with a temperature of 97°C.
Optimization of East Java Propolis Extraction as Anti SARS-Cov-2 by Molecular Docking Study
Authors: Hidayat Sofia Aulia , Susilo Agus , Al Awwaly Khothibul Umam , Cahyati Miftakhul
Published: August 2022

The purpose of this research is to obtain the optimum propolis extraction method using microwave extraction so as to produce anti-SARS CoV-2 compounds. The research method used was experimental with a completely randomized factorial design consisting of 2 factors namely extraction time and power level, 9 treatments and 3 replications. The extraction using microwave assisted extraction was carried out according to treatment factors, namely low power level (A1), medium (A2), high (A3) and the length of treatment time was 10 minutes (B1), 20 minutes (B2), and 30 minutes (B3). The results of statistical analysis showed that the interaction between the two had a high significant effect (p<0.01) on the alkaloid content which is ranged from 0.665 to 1.452 mg/g and had no effect on color L*a*b* and antioxidant activity which is ranged from 1.533 to 1.553. The percentage of hexadecane in East Java propolis extract was 0.280 %, octadecane was 0.775%, and pentacosane was 6.716%. The results of druglikeness analysis showed that hexadecane, octadecane and pentacosane compounds had potential as antivirals with a probability to be active value of 0.68. The binding affinity value produced by enzalutamide as a native ligand is -6.7 kcal/mol while the highest inhibitory value is octadecane and pentacosane of -5.9 kcal/mol and followed by hexadecane at -5.8 kcal/mol. The conclusion of this research is that the most optimal extraction method using microwave assisted extraction is done with a medium microwave power level for 30 minutes in terms of the alkaloid content and antioxidant activity produced. This method is able to produce extracts with good antiviral bioactive components, although the binding affinity has not been able to exceed the native ligand's ability in terms of the molecular docking approach.
Testicular Plasmacytoma Masking as Epididymo-orchitis in a Known Multiple Myeloma Patient
Authors: VUSQA URWAT TIL , ASAWA PALASH , FAZAL SALMAN , SAMHOURI YAZAN
Published: August 2022

Background/Aim: Extramedullary plasmacytoma (EMP) is defined as a localized plasma cell neoplasm that arises in tissues other than the bone. The most common sites of involvement of EMP are the upper airways followed by lymph nodes, gastrointestinal tract, thyroid gland, skin, brain, liver, and lungs. Testicular plasmacytoma has a very rare occurrence with about 70 cases reported in literature to date. Case Report: We describe a 52-year-old-male with a diagnosis of multiple myeloma presenting with lytic lesions of the axial skeleton. He had lambda light chain restricted, R-ISS stage II with high risk cytogenetics as he tested positive for t(4;14). He underwent four cycles of cyclophosphamide, bortezomib and dexamethasone followed by auto-peripheral stem cell transplantation. He was kept on ixazomib, lenalidomide and dexamethasone maintenance therapy, but relapsed soon after and was diagnosed with plasmacytoma of the left lung. Therapy was switched to daratumumab, carfilzomib and dexamethasone and the patient received radiation of his left lung. He then developed left painless testicular mass which was treated with six weeks course of antibiotics. However due to persistence of concerning features on scrotal ultrasound post-treatment, the patient underwent radical orchiectomy with pathology coming back positive for plasma cells. Conclusion: The testes serve as a sanctuary site for hematological malignancies due to the presence of the testicular-blood barrier. Hence, it is imperative to keep a high index of suspicion for testicular plasmacytoma in the right clinical context when evaluating a patient with known multiple myeloma.
Arthroscopic Excision of Intra-articular AHRR-NCOA2–positive Angiofibroma of Soft Tissue of the Knee: A Case Report
Authors: NAKAYAMA SHIZUHIDE , NISHIO JUN , NAGAO SHUNJIRO , AOKI MIKIKO , NABESHIMA KAZUKI , YAMAMOTO TAKUAKI
Published: August 2022

Background/Aim: Angiofibroma of soft tissue (AFST) is a rare benign soft-tissue tumor that most frequently occurs in the lower extremities. It has a characteristic genetic feature with a balanced chromosomal translocation t(5;8)(p15;q13), resulting in a fusion of aryl hydrocarbon receptor repressor (AHRR) and nuclear receptor coactivator 2 (NCOA2). Case Report: A 55-year-old woman presented with a 2-year history of left knee pain and recently noticed the development of a palpable mass. Magnetic resonance imaging exhibited a well-defined intra-articular mass with iso-signal intensity relative to skeletal muscle on T1-weighted sequences, heterogeneous high signal intensity on T2-weighted sequences and avid, diffuse enhancement on contrast-enhanced fat-suppressed T1-weighted sequences. After an ultrasound-guided core needle biopsy, the lesion was successfully treated by arthroscopically-assisted complete excision. Histologically, the tumor was composed of uniform bland spindle cells in a myxoid to collagenous stroma with a prominent vascular network. Immunohistochemically, the spindle cells were diffusely positive for CD163 and CD68 and focally positive for estrogen receptor. Moreover, AHRR-NCOA2 fusion gene was detected by reverse transcription-polymerase chain reaction. There has been no clinical evidence of local recurrence at 1-year follow-up. Conclusion: This is the first report of the detection of an AHRR-NCOA2 gene fusion associated with intra-articular AFST. AFST should be included in the extended differential diagnosis of an intra-articular soft-tissue mass, particularly if the mass is vascular.
Распределение концентрации носителей заряда в эпитаксиальных слоях Ge и GeSn, выращенных на n-=SUP=-+-=/SUP=--Si(001)-подложках
Authors: Титова А.М. , Денисов С.А. , Чалков В.Ю. , Алябина Н.А. , Здоровейщев А.В. , Шенгуров В.Г.
Published: August 2022

Методом химического осаждения из газовой фазы, активированной "горячей нитью", выращены гетероэпитаксиальные слои Ge или Ge1-xSnx на высоколегированных донорной примесью (As или Sb) подложках Si(001). Для сравнения такие же слои были выращены на высокоомных подложках Si(001). В тех и других слоях вольт-емкостным методом были измерены профили распределения концентрации носителей заряда по глубине слоев, а в последних слоях дополнительно методом эффекта Холла были измерены подвижности носителей заряда. Установлено, что слои, выращенные на высокоомных подложках, были p-типа проводимости, а слои, выращенные в тех же режимах на высоколегированных подложках, были n-типа с концентрацией электронов в слоях Ge n=(4-9)·1016 см-3, а в слоях GeSn n=(2-4)·1017 cм-3. Экспериментально и теоретически установлено, что эффект автолегирования слоев Ge и GeSn в методе химического осаждения из газовой фазы, активированной "горячей нитью", отсутствует. По нашему мнению, формирование слоев Ge и GeSn n-типа проводимости при выращивании их на высоколегированных донорной примесью (As или Sb) подложках n+-Si(001) связано с сегрегацией этой примеси при росте буфферного слоя Si и с последующим встраиванием ее в растущие слои Ge или GeSn. Ключевые слова: эпитаксия, легирование, Ge, Si, Sn, концентрация.
Пленки фторида кальция толщиной 2-10 нм на кремнии-(111): выращивание, диагностика, изучение сквозного токопереноса
Authors: Банщиков А.Г. , Векслер М.И. , Иванов И.А. , Илларионов Ю.Ю. , Соколов Н.С. , Сутурин С.М.
Published: August 2022

Epitaxial calcium fluoride (CaF2) layers with a nominal thickness up to 10 nm on the (111)-oriented Silicon (Si) are obtained. Surface topographies of the fluoride films are recorded and the current-voltage characteristics of the Au/CaF2/Si structures are studied. On a qualitative level, these structures exhibited all the features usual for metal-insulator-semiconductor systems. The current-voltage curves of the samples were reproduced by modeling considering a finite (0.1–1 nm) value of the standard thickness deviation of the dielectric CaF2 film.
Кремниевые светодиоды с дислокационной люминесценцией, сформированные с участием кислородных преципитатов
Authors: Соболев Н.А. , Калядин А.Е. , Штельмах К.Ф. , Аруев П.Н. , Забродский В.В. , Шек Е.И.
Published: August 2022

Silicon light-emitting diodes with dislocation-related
electroluminescence have been studied at room temperature. For
the fabrication of the light-emitting diode structures, a well-known
method for the formation of dislocation-related luminescence
centers during anneals of silicon with a high oxygen concentration
in a flow of argon was modified by introducing a preliminary
O+- ion implantation and carrying out a final anneal in a chlorine-containing
atmosphere. In the electroluminescence spectra, the
D1 dislocation-related luminescence line dominates at currents
less than 150 mA and the near-band-edge luminescence line starts
to dominate with increasing current. The electroluminescence
excitation efficiency for the D1 center is 3.3 · 10-20 cm2 · s at room
temperature.
Влияние состава волноводного слоя на излучательные параметры лазерных гетероструктур InGaAlAs/InP спектрального диапазона 1550 нм
Authors: Новиков И.И. , Няпшаев И.А. , Гладышев А.Г. , Андрюшкин В.В. , Бабичев А.В. , Карачинский Л.Я. , Шерняков Ю.М. , Денисов Д.В. , Крыжановская Н.В. , Жуков А.Е. , Егоров А.Ю.
Published: August 2022

The influence of InGaAlAs waveguide layer composition on the photoluminescence and electroluminescence in the 1550-nm spectral range of heterostructures based on thin strained In0.74Ga0.26As quantum wells has been studied. An approach is proposed that allows based on the analysis of electroluminescence.to carry out a comparative analysis of the deferential gain in fabricated laser diodes. It is shown that decrease of the molar fraction of aluminum in waveguide InGaAlAs layers matched in lattice constant with indium phosphide leads to falling of integrated photoluminescence intensity, however, laser diodes with In0.53Ga0.31Al0.16As waveguide layers demonstrate a higher differential gain compared to laser diodes with In0.53Ga0.27Al0.20As waveguide.
Identifying Influences in Patient Decision-making Processes in Online Health Communities: Data Science Approach
Authors: Li Mingda , Shi Jinhe , Chen Yi
Published: August 2022

Background

In recent years, an increasing number of users have joined online health communities (OHCs) to obtain information and seek support. Patients often look for information and suggestions to support their health care decision-making. It is important to understand patient decision-making processes and identify the influences that patients receive from OHCs.

Objective

We aimed to identify the posts in discussion threads that have influence on users who seek help in their decision-making.

Methods

We proposed a definition of influence relationship of posts in discussion threads. We then developed a framework and a deep learning model for identifying influence relationships. We leveraged the state-of-the-art text relevance measurement methods to generate sparse feature vectors to present text relevance. We modeled the probability of question and action presence in a post as dense features. We then used deep learning techniques to combine the sparse and dense features to learn the influence relationships.

Results

We evaluated the proposed techniques on discussion threads from a popular cancer survivor OHC. The empirical evaluation demonstrated the effectiveness of our approach.

Conclusions

It is feasible to identify influence relationships in OHCs. Using the proposed techniques, a significant number of discussions on an OHC were identified to have had influence. Such discussions are more likely to affect user decision-making processes and engage users’ participation in OHCs. Studies on those discussions can help improve information quality, user engagement, and user experience.
Rekayasa Fitur Berbasis Machine Learning untuk Mendeteksi Serangan DDoS
Authors: Muhammad Nur Faiz  , Oman Somantri  , Arif Wirawan Muhammad
Published: August 2022

Serangan jaringan terdistribusi yang disebut juga dengan distributed denial of service (DDoS) merupakan ancaman dan masalah utama keamanan internet. DDoS adalah serangan pada jaringan yang bertujuan melumpuhkan sumber daya server. Serangan ini meningkat setiap tahunnya, terlebih pada kondisi pandemi COVID-19 saat ini. Salah satu bentuk penanggulangan untuk meminimalkan dampak DDoS adalah dengan perintah deteksi sistem atau intrusion detection system (IDS). Teknik IDS saat ini masih banyak menggunakan metode tradisional, sehingga masih jauh dari sempurna dibandingkan dengan teknik dan alat yang digunakan penyerang, karena IDS dengan metode tradisional hanya menggunakan deteksi berbasis signature atau model deteksi berbasis anomali dan menyebabkan banyak kesalahan. Lalu lintas paket data jaringan memiliki sifat yang kompleks, baik dari segi ukuran maupun sumbernya. Penelitian ini memanfaatkan kemampuan jaringan saraf tiruan untuk mendeteksi serangan DDoS atau normal. Teknik klasifikasi dengan metode jaringan saraf tiruan menjadi salah satu solusi. Berdasarkan kekurangan pada IDS tradisional, penelitian ini bertujuan untuk mendeteksi serangan DDoS menggunakan teknik rekayasa fitur berbasis feeder machine learning untuk meningkatkan pengembangan IDS. Selain itu, penelitian ini juga bertujuan untuk menganalisis dan mendapatkan kombinasi fungsi pelatihan dan arsitektur lapisan tersembunyi jaringan saraf tiruan terbaik untuk menyelesaikan permasalahan deteksi dan klasifikasi paket DDoS dalam jaringan komputer dengan memanfaatkan dataset UNSW-NB15 menggunakan metode jaringan saraf tiruan, sehingga didapatkan suatu kombinasi antara fungsi pelatihan dan arsitektur jaringan tersembunyi jaringan saraf tiruan yang mampu memberikan tingkat akurasi pengenalan DDoS yang tinggi. Berdasarkan percobaan yang dilakukan dengan tiga skema dan menggunakan teknik arsitektur skema jaringan saraf tiruan dengan masukan delapan fitur, diperoleh akurasi tertinggi sebesar 98,22%. Pemilihan fitur memainkan peranan penting dalam ketepatan hasil deteksi dan kinerja pembelajaran mesin dalam masalah klasifikasi.
Evaluasi Laman Penerimaan Mahasiswa Baru dengan WebQual 4.0 dan Importance-Performance Analysis
Authors: Aditya Gusti Mandala Putra  , Dinan Yulianto
Published: August 2022

Evaluasi kualitas website harus diperhatikan secara berkelanjutan oleh suatu institusi karena kualitas website adalah bagian dari gambaran institusi di dunia maya. Universitas Ahmad Dahlan (UAD) sebagai suatu institusi pendidikan tinggi memanfaatkan media website dalam proses Penerimaan Mahasiswa Baru (PMB). Merujuk pada proses kajian awal menggunakan metode black-box, ditemukan bahwa terdapat fungsi website PMB UAD yang tidak bekerja secara baik dan terindentifikasi konten informasi proses pendaftaran yang ditampilkan pada website tidak lengkap. Penelitian ini bertujuan untuk mengetahui kualitas website PMB UAD berdasarkan interpretasi pengguna akhir dengan instrumen penelitian mengadopsi metode WebQual 4.0, meliputi variabel kualitas kegunaan, variabel kualitas informasi, dan variabel kualitas layanan interaksi. Proses evaluasi diawali dengan pengujian instrumen penelitian yang meliputi pengujian validitas dan pengujian reliabilitas. Proses pengujian statistik WebQual 4.0 dilakukan melalui pengujian asumsi statistik, meliputi pengujian normalitas, pengujian autokorelasi, pengujian multikolinearitas, pengujian heteroskedastisitas, uji-t, dan uji-f. Proses evaluasi terakhir ialah pengujian importance-performance analysis (IPA) dengan analisis tingkat kesesuaian, analisis kesenjangan, dan analisis kuadran antara kinerja dan harapan. Hasil pengujian validitas dan reliabilitas terhadap 23 butir instrumen oleh seratus responden mendapatkan nilai keseluruhan rtabel lebih besar dari nilai rhitung, yaitu 0,195, dan nilai Cronbach's alpha lebih besar dari 0,6, sehingga instrumen penelitian valid dan reliabel. Pengujian yang melibatkan 250 responden mendapatkan hasil statistik WebQual 4.0, yaitu setiap variabel bebas (A) berkorelasi secara parsial dan simultan dengan variabel terikat (B). Uji kuadran IPA memberikan hasil bahwa variabel A2.5 tentang penyediaan informasi yang mudah dipahami oleh pengguna perlu dioptimalkan oleh pihak pengelola PMB dan pengelola layanan website di UAD.
Molecular Characterization of Shiga Toxin Produced by Escherichia coli Isolated from Milk Samples in Baghdad City
Authors: Najm Balqees Yahya , Khaleel Sarab H. , Majeed Hala Mahmmad
Published: August 2022

Raw milk is a nutrient-rich food that is considered a high-quality nutritional medium for many microorganism, including Escherichia coli. The aim of the present work was the diagnosis, by molecular methods, of Shiga toxins produced by E. coli strains isolated from cow milk samples collected from different farms in Al-Mahmmodia, Al yoosifya, Al lattiffya, Al howasha, and Arab Jboor in the government of Baghdad during the summer season. Milk samples were incubated in media for bacterial isolation. Isolates were identified using Gram staining and biochemical tests. Out of 50 samples, 15 (30%) showed the presence of E. coli. To confirm the identity of the isolates, their 16S rRNA genes were amplified using specific primers. The results showed that all isolates were E. coli. Shiga toxin-producing E. coli (STEC) were detected among the samples. The prevalence of stx1 genes was higher than that of stx2 among them. No STECs were found among six of the sample isolates, and none of these isolates was positive for stx1 and stx2. SDS-PAGE was used to determine the molecular weight of the toxin, and four selected E. coli bacteria producing Shiga-like toxins showed a clear band of approximately 70 kDa.
A Study on Effectiveness of E-Recruitment Method in IT Industries in Bangalore City, India
Authors: Nikitha Masineni
Published: August 2022

Abstract: This E-recruitment is also known as Online recruitment where companies and HR professionals use Online methods such as posting the job online, on social media, or on their in-house platforms to post their job advertisements in search of potential candidates. E-recruitment is faster and more effective compared to the traditional methods of hiring and due to this fast-changing environment and trends, Companies/HR professionals want to adopt E-recruitment as a part of their hiring process. The title of my study is "A study on the effectiveness of adoption of E-recruitment method in IT industries in Bangalore city". Bangalore city is the IT Capital of India and is the fastest growing industry in the world and hence provides millions of job opportunities and there is a need for an effective and faster hiring process to fill this massive need. As Bangalore is called the Silicon Valley of India, I felt that there was a need to study how effective the E-recruitment methods are. This study was done to understand how effective the E-recruitment methods are in IT industries in Bangalore. This study was done using research methodologies where the sample size is 6 and sampling technique is Random Sampling method, data collection tool is Structured Questionnaire and Telephonic interview with HR professionals in Bangalore city. Variables like time saved, organizational change, unqualified candidates, etc. are chosen to collect and analyze the data. In this study, how effective the adoption of Erecruitment is in IT industries in Bangalore city is measured. To measure and analyze this, a Structured Questionnaire with a set of questions was administered via Google Forms and received 50 responses from HR professionals who reside in Bangalore City. The analysis for the study was carried out using SPSS Software and conclusions were drawn with the help of that analysis. This study concludes that there is good effectiveness of adoption of E-recruitment methods in IT industries in Bangalore city. HR professionals feel that time is saved in E-recruitment as many unqualified candidates do not apply to the unqualified job and the satisfaction of the candidates they hired, organization change in E-recruitment is important. HR professionals think that there is a need for good verification of candidates during online job postings.
Abrasive Wear in Ground Engaging Tools and Its Remedial Measures
Authors: Dhiman Pankaj , Kaistha Dushyant , Dhiman Shabnam , Kaistha Swati
Published: August 2022

Abstract: Wear is the degradation of material under plethora of service conditions and is considered as one of the major issue of the material used in engineering. So far, various types of wear have been recognized such as erosive wear, surface fatigue, fretting wear, adhesive wear, abrasive wear and sliding wear. Wear by abrasion accounts for more than 50% of the wear failures occurring in industries. Hard abrasive particles penetrate the components and cause damage in the form of material loss. The components of machines working undersevere conditions the soil engaging part of the earth-moving machinery, and various agricultural implements experience sever wear. The wear in agricultural equipments and tillage is the main problem. For combating with wear problem various methods have also been developed such as hardfacing, cryogenic treatment, coating and heat treatment of components, which are chosen on the basis of various conditions under which the component has to perform the desired function. Hardfacing and heat treatment is commonly used to resistthis failure, also considered as most appropriate and economically sound process for improving the life of tillage tool at farming level. In the present paper author as made the effort to review various types of wear and remedial measures
Relativity of Pseudo-Spherical Concept and Hartree-Fock Concept for Condensed Matter
Authors: Kolhe K. G.
Published: August 2022

Abstract: The function Fn,l (r) ;the radial part of of the pseudo-wave function k (r,  ,  ) is expressed in terms of ion-core electron density, n,l (r) and its relation with the radial part Pn,l (r ) of Hartree- Fock wave function. A new mathematical function psl (x) called as pseudo-spherical function has been developed which is similar to other mathematical functions, and helpful in determining many types of electron densities. The physical and mathematical developments on various aspects such as functional densities have been described. It is further emphasized that Fn,l (r) and Pn,l (r) functions and core electron density at different electronic states of the atom that both the functions posses strong correlationship. Study concludes that the present development resulted into an innovative simpler path in the orientation of condensed matter as well as Mathematical Physics.
Effect of a Virtual Reality Simulation Program of Mental Health Nursing
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Son JungA , Choe MyeongHui
Published: August 2022

Objectives This study was conducted to understand the effect of the virtual reality (VR) simulation education program of mental health nursing applied to the mental health nursing theory classes through online video classes for third-grade nursing students on mental health literacy, clinical performance, critical thinking, and educational satisfaction. Through this, it was conducted to use it as a basis for the application of nursing curriculum and VR programs. Methods The research design was a non-equivalent control group pretest-posttest quasi-experimental study. The participants were 103 nursing students. The experimental group (n=63) took a total of 13 mental health nursing theory classes applied with VR simulation, and the control group (n=40) only took mental health nursing theory classes without VR simulation. Descriptive statistics were used for the collected data using the SPSS 25 program. Homogeneity between the experimental and the control group was confirmed using x2-test, Fisher's exact test, and independent t-test. Paired t-test was performed for the difference between before and after the experimental group. Independent t-test were used as the difference between two groups. Results As a result of pretest and posttest the experimental group, there were statistically significant differences in mental health literacy, clinical performance, and critical thinking score. As a result of statistical analysis between the two groups in the experimental group and the control group, a significant difference was found in the score of mental health literacy and educational satisfaction. Conclusions Based on the results of this study, the VR simulation education program of mental health nursing was found to be effective in improving mental health literacy, clinical performance, critical thinking, and educational satisfaction of nursing students. Recommendations are made for use in nursing curriculum and classes incorporating VR simulation.
A Qualitative Case Study on the Adaptation of Chinese Students to University Life in Corona Era
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Ma Xiaojing , Kim Tae-hoon , Kim Byeong-chan
Published: August 2022

Objectives This study define the characteristics of the adaptation of Chinese students in South Korea during COVID-19, so suggest the direction about deep understanding on overseas students in a serious incident situation. Methods The researchers selected 5 Chinese students and 1 sub informant and conducted a qualitative case study. Collecting data with participation observation and in-depth interview and analyzing the characteristics of adapting experience in COVID-19 era by coding and categorizing the data. Results The adaptation phenomenon of Chinese students studying in South Korea during COVID-19 is shown as “chaos and confusion,” “difficult to adapt,” “increasing stress,” “overcome and move on”. Chinese international students have encountered a series of difficulties due to the changes in teaching methods and learning environment after the COVID-19 outbreak, and interpersonal communication is more online. Conclusions Chinese overseas students have new psychological pressure and the previous methods to relieve the pressure are no longer applicable and new solutions must be found. In order to create a better education environment in a unexpected situation like COVID-19, in addition to the efforts of Chinese students themselves, schools and society should also improve the relevant policies and systems.
The application of appreciative inquiry and its effectiveness on social welfare coursework: a case study
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Youn Kihyok , Jeon Hyeongwon , Park Juneun
Published: August 2022

Objectives The purpose of this study is to identify the effectiveness of appreciative inquiry (AI) and how it can be applied to social welfare coursework. Ultimately, the present study aims to boost participatory learning, discover positive aspects of students, and enhance the capability of voluntary AI learning. Methods D University students (N = 34) participated in the 5-D model AI learning. Pre- and post-test was completed to evaluate the effectiveness of AI. Results The 5-D model (e.g., Define, Discovery, Dream, Design, and Desitny) with a single theme for each group appears to be the most desirable method for employing AI in social welfare coursework. Pre- and post-test reveals that the AI class effectiveness of individuals, teams, and team cooperation is augmented. Specifically, the individuals' positive psychological capital varaibles illustrate the highest (average .53 higher). Conclusions Results suggest that AI application in social welfare coursework may be effective for participatory learning and voluntary AI learning. To better implement AI in coursework, future research should consider developing systematic AI processes and objective evaluation tools based on the 5-D model, as well as exploring an action plan, a best practice, and positive questions corresponding to social welfare courses.
Analysis on Types of Novice Teachers’ Induction and Impacts of Policy Supports
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Ssang-cheol , Lee Dongyup , Kim Hyejin
Published: August 2022

Objectives The purposes of this study were to investigate types of novice teachers’ induction and to analyze policy supports. Methods Teaching and Learning International Survey(hereafter TALIS) 2018 data collected by OECD in 2018 were analyzed. Specifically, using responses from elementary school teachers of Korea, latent profile analysis was implemented to identify novice teachers’ induction types. And multinominal logistic analysis was performed to specify policy supports which had impacts on induction types. Results Main findings were as follows. First, novice teachers’ induction was categorized by four types. Second, school size and social capital of individual schools, and policy supports including initial teacher preparation and feedback experiences had impacts on induction types. Conclusions As a result, novice teachers’ induction types were differentiated by contexts and circumstances of individual teachers. Therefore, the individualized and customized policy supports by induction types should be designed for novice teachers’ successful induction process.
The Effect on the Trainees Competence and Psychological Happiness of the Hatha Yoga Instructors Images
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Eun-Suk , Min Hyun-Joo
Published: August 2022

Objectives The purpose of this study was to examine the effect on the trainees competence and psychological happiness of the hatha yoga instructors images. Methods In this study, 300 practitioners participating in yoga center classes in 6 yoga centers in Yeongdong, Gangwon-do (Gangneung, Donghae, Samcheok, Sokcho) were selected as research subjects, and a total of 300 questionnaires were distributed and collected. Out of total 300 questionnaires collected, 234 questionnaires were used for final analysis. Frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis and multiple regression analysis using Windows PC/SPSS ver. 26.0 program were conducted to analyze the survey materials. Results First, hatha yoga instructor image had a significant effect on the performance competence. Second, hatha yoga instructor image had a significant effect on the psychological happiness. Third, there is an influencing relationship between the hatha yoga instructor image, performance competence and psychological happiness. Conclusions These results shown that the trainees competence demand of desirable hatha yoga instructors image, it helps to minimize the departure of the trainees competence and induces continuous trainees competence motivation.
A Study on the Effects of Teaching and Learning on High School Hair Beauty Using Flipped Learning: Focusing on Basic Hair Perm
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Sang-Won , Lee Soon-Hwa
Published: August 2022

Objectives The purpose of the high school hair and beauty curriculum is to investigate the effectiveness of teaching and learning (writing, practical skills) such as self-directed learning ability, learning motivation, learning satisfaction, and learning persistence after applying flipped learning classes to basic hair perm skill classes. Methods This study divided 88 third graders of A High School in Seoul into an experimental group applying flipped learning and a control group applying lecture methods, and compared self-directed learning ability, learning motivation, learning satisfaction, and academic achievement between the two groups. Results This study divided 88 third graders of A High School in Seoul into an experimental group applied with flipped learning and a control group applied with a lecture method, and compared self-directed learning ability, learning motivation, learning satisfaction, and academic achievement between the two groups. As a result, compared to the control group to which the flipped learning class was applied, the self-directed learning ability, cognitive control, and attention concentration and satisfaction among learning motivation were significantly higher due to the induction of pre-learning video, discussion, and cooperative learning. In addition, beyond the interaction and time and space constraints between instructors and fellow learners, satisfaction with teaching behavior, satisfaction with beauty environment, and satisfaction with beauty ability were significantly higher among learning continuity and learning satisfaction. Conducting metacognitive thinking through discussion and cooperative learning, understanding and applying academic achievement (writing) was significantly increased. Conclusions Flipped learning classes have a positive effect of improving cognitive regulation, learning motivation, learning satisfaction, and learning continuity among self-directed learning abilities. Accordingly, it suggests the need to expand classes using flipped learning in the operation of high school beauty courses, and suggests the need for program development and teacher training so that they can be operated and used in various beauty subjects in the future.