bluuebunny/crossref_metadata_2025 huggingface dataset:
Peningkatan Penguasaan Teknologi Penunjang Bisnis Pada Wanita Generasi Baby Boomers
Authors: Tachta Hinggo Hichmaed , Hardilawati Wan Laura , Kusumah Alum , Sulistyandari Sulistyandari
Published: February 2022

There is a view that women, especially in Indonesia, have the main task, namely as housewives, this view continues to be entrenched and rooted in life in Indonesia, to this day many have such assumptions. This condition supports the low Labor Force Participation Rate (TPAK) for women, which is lower than men. Over time and increasing awareness of the role of women, social changes occur in society. The role of women in the family economy continues to increase, the role of women is seen in their participation in building the nation's economy through MSMEs. However, there are obstacles in the form of gaps in mastering technology, especially for women of the baby boomers generation. To improve the ability of baby boomers to maximize business-supporting digital technology, training and providing information related to digital technology and digital marketing is carried out. This activity was carried out smoothly, the owner who is a generation of baby boomers is expected to succeed in reducing the gap in the use of digital technology through this activity.
Social Project: Tingkatkan Kepedulian Sesama dengan Bakti Sosial di Panti Asuhan Annisa Pekanbaru
Authors: Sari Maya Rizki , Masril Masril , Hanifah Hanifah , Wahyuni Ayu , Pratiwi Lisda Dhia , Anggraini Nilpa , Mukaramah Rodiatul , Afsyah Rizkinisa , Sari Nadia Rahma
Published: February 2022

Social activity or better known as baksos (in bahasa) is an activity that manifests a sense of humanity between human beings. As fellow human beings, we are obliged to help each other, especially those who are less fortunate than us. Therefore, through this social service, we visited the orphanage with the aim of sharing and caring for those in need. This activity is a collaboration between lecturers and students which was carried out at the Annisa Orphanage Pekanbaru together with 26 children and 1 administrator of the Annisa Orphanage along with 2 representatives of HIMMARI (Riau Mahaputra Student Association). The form of activities carried out is in the form of making works and providing basic necessities. The results of this activity show that caring for others can be established, one of which can be improved by social projects in the form of social services. This is important to do considering the urgency of caring for each other.
Singing for a King: The Message of Psalm 45
Authors: Blankesteijn Diederik
Published: February 2022

This article deals with some of the core issues in the study of Psalm 45. It describes the current state of research and critically reviews two relatively recent interpretations, those by Simon Chi-Chung Cheung and James Trotter. Both interpretations have methodological problems. The article concludes that the aim of Ps 45 was to praise a historical near-divine king on the occasion of an addition to his harem. Any "deeper" theological meanings and messianic readings stem from a later age.
EFEKTIFITAS PROBLEM BASED LEARNING MENGGUNAKAN MEDIA SMARTPHONE DITINJAU DARI KEMAMPUAN KOGNITIF SISWA
Authors: Denny Pratama Loviga , Putra Dea Ramadhan Minggar
Published: February 2022

Currently, a technology media is needed in a mathematics learning process. However, some technological media such as smartphones are still not used optimally in creating a certain learning method in learning mathematics. This study aims to test the effectiveness of the Problem Based Learning (PBL) learning method facilitated by smartphone media by utilizing students' cognitive abilities. This study uses a quantitative approach (pretest-posttest with nonequivalent group design) with two treatments, namely the experimental class using the PBL method using Smartphone media and the control class using the Conventional PBL method. The subjects of this study were class VIII students who collected 63 students in the control class and 60 students in the experimental class. The effectiveness of the treatment in both classes was analyzed using the one sample t-test with a significance level of 5%. The data from this study were analyzed using independent sample t-test with a significance level of 5%. The results of this study indicate that PBL using smartphone media is more effective than conventional PBL. Based on the results of this study, a new variation of the Problem Based Learning (PBL) method was found, namely this method can be done through face-to-face learning or online learning.Keywords: Problem Based Learning, smartphone, insturctional media
Labour Compensation Strategies/Practices of Maritime Industry-Discussion on Critical Cases
Authors: Karunatilleke A.W
Published: February 2022

In July 25, 2020, a bulk carrier ran aground and there was an oil spill. *Mr. Perera, a Sri Lankan,was employed as anAble seaman with a Panama CDC (Continuous Discharge Certificates) onboard the vessel.He as well asmost of the crew had been onboardthe vessel over a period of 12 months in excess of their contracts, none of the mariners had access to communication to contact their families despite this been assured in their employment agreements.In addition many of the crew had not taken any shore leave since Sep 2019. Combinedwith the global pandemic that made the future of the seafarers uncertain. One of his fellow crew mates tried to jump overboard to escape the vessel and was seriously injured. Following the grounding the Master of the vessel and Chief Officer were arrested on 18 Aug 2020 and were charged with endangering safe navigation. The pair had been detained in prison since their arrest andhad not been released on bail. The remainder of the crew have been detained under ―house arrest‖ in a local hotel. The only organization that could help these seafarers would be their union who would stand by them in order to bring them home safely to their families and organize to get compensationfor unjust treatment andviolation oftheir rights. This concept paper would present several relevant institutions, programs and scientific research with impact for increasing union efficiency. The author would follow *Mr. Perera‘s emails to the union and how the immediate response brought the crew home. The main conclusion of this paper highlights the importance of the union and the further programs, policies and strategies that should be adopted to keep the seafarers‘ lives safe.
Positive Classroom Design through Social-Emotional Learning: Building a Community of Learners
Authors: Sorbet Stefanie R , Notar Charles E
Published: February 2022

There is a direct relationship between meeting the needs of our students through providing a positive learning environment that is rich in social and emotional learning and building a community of learners who want to be engaged in their learning. Students who participate in social and emotional learning in the classroom are able to practice self-control, self-management, responsible decision-making, relationship skills, and social awareness (Casel, 2020). Social and emotional learning activities and lessons help teachers to meet the basic needs of their students in order for them to thrive in their learning environment. When basic needs are met and social-emotional learning competencies are achieved, students feel a sense of community in their classroom. When students feel a part of a positive environment, behavior decreases, and engagement increases. The article is based on a review of the literature and the personal experiences of one of the authors.
Hubungan Pengetahuan Tentang Deteksi Dini Penyakit Degeneratif dengan Kejadian Hipertensi pada Lansia di Dusun Karangpucang Desa Ngancar Kecamatan Pitu
Authors: Maimunah Siti
Published: February 2022

The prevalence of hypertension which is increasing from year to year is no exception in the elderly, resulting in an increase in the health burden on the global community. The study was conducted to determine the relationship between knowledge about early detection of degenerative diseases and the incidence of hypertension in the elderly in Karangpucang Hamlet, Ngancar Village, Pitu District, Ngawi Regency. The research method applied is quantitative correlation with a cross sectional approach. The sample in this study was the elderly who took part in the elderly Posyandu activities in Karangpucang Village with a total of 54 elderly people using the total sampling method. The research instrument is a knowledge questionnaire about early detection of degenerative diseases. The analysis technique used the chi-square test,

 

with a confidence level of =0.05. The results of the study concluded that the level of knowledge of respondents about early detection of degenerative diseases was mostly in the sufficient category 24 (44.4%), and the results of measuring blood pressure in the elderly were mostly normal at 31 (57.4%). There is a relationship between knowledge about early detection of degenerative diseases and the incidence of hypertension in the elderly in Karangpucang Hamlet, Ngancar Village, Pitu District, Ngawi Regency with P = 0.023.
What is the evidence for medicinal value of carnivorous plants?
Authors: Chan Michael M. , Chan Mallory M. , Chan Edward D.
Published: February 2022

Throughout history, plants have been used for medicinal purposes. Many of the modern allopathic medicines used today are either directly or indirectly derived from plants. Examples include the cardiotonic and antiarrhythmic agent digoxin (derived from the foxglove—Digitalis purpurea), antimalarial quinine (derived from the bark of the cinchona tree—Cinchona officinalis), the mydriatic (pupil dilatory) agent belladonna (derived from the nightshade Atropa belladonna), aspirin (derived from the bark of the willow tree—Salix alba, etc.), taxol (derived from the yew tree—Taxus brevifolia) and vincristine (derived from the periwinkle—Catharanthus roseus (=Vinca rosea)). Although carnivorous plants have been used medicinally, to date not a single compound derived from carnivorous plants has been widely-accepted in modern allopathic medicine. Pinguicula spp., Dionaea muscipula, Drosera spp., Sarracenia purpurea, and Nepenthes spp. are the carnivorous plants frequently touted as having therapeutic potential. We herein review the existing literature on the medical uses of these plants.
A Sarracenia purpurea population in a peatland of southern New Hampshire
Authors: Sudman Marc
Published: February 2022

This paper presents some summary comments on a previously uninvestigated Sarracenia purpurea population of 134 plants. While these data are “old”, from studies I undertook in 1999 as part of a New England College Peatland Research Project, the information has not before been published.
Observations of isolated Pinguicula populations in the western USA
Authors: Rice Barry , Yin Arthur , Morimoto Gina E.
Published: February 2022

A site for Pinguicula in California, far from previously studied sites, is investigated in detail for the first time. Comparisons between this population and other western USA populations of Pinguicula are made, which suggest that the plants at this site seem more allied with Pinguicula macroceras Link subsp. macroceras than Pinguicula macroceras subsp. nortensis J. Steiger & J.H. Rondeau. Further investigation is suggested to confirm the identity of these plants.
New cultivars: Sarracenia 'Kilimanjaro', Sarracenia 'Tapestry', Sarracenia 'Opawa Emperor'
Authors: Addington Jerry , Oudean Karen , Gilson Mike
Published: February 2022

The cultivars Sarracenia 'Kilimanjaro', Sarracenia 'Opawa Emperor', and Sarracenia 'Tapestry' are described.
Prey preference in Genlisea small crustaceans, not protozoa
Authors: Darnowski Douglas W. , Fritz Sarah
Published: February 2022

It has been reported that Genlisea is a plant which specializes in trapping ciliate protozoa, such as Blepharisma, which it has chemotactically attracted, and it was claimed further to be the first such example known. Those authors used both South American (G. aurea, G. violacea) and African (G. margaretae) species for their work, and they found or were able to cite evidence for prey being attracted by means of released chemicals, for the release of digestive enzymes, and the absorption and translocation of radioactive 35S.
ERRATUM: The correct name for the hybrid butterwort Pinguicula grandiflora subsp. rosea ' P. vulgaris
Authors: Schlauer Jan
Published: February 2022

Aymeric Roccia (2013) described a new hybrid butterwort from the Alps of Isere, SE France. Unfortunately, the present author did not have a chance to review the manuscript before the article went to print, so a nomenclatural problem was overlooked.
Preliminary studies reveal richness of carnivorous plants in an underexplored area of northeastern Brazil
Authors: da Silva Caio Vinicius
Published: February 2022

Brazil is home to several carnivorous plant genera, including Drosera, Genlisea, Utricularia, Heliamphora, Philcoxia, Catopsis, and Brocchinia. It is only second to Australia (c. 188 species) (Bourke & Nunn 2012; Darnowski et al. 2006; Schlauer 2013) in total number of carnivorous plant species, with approximately 125 (Forzza et al. 2010; Schlauer 2013).
The majority of carnivorous plant species in Brazil are found in campo rupestre vegetation, mostly along the Cadeia do Espinhaço highlands of Minas Gerais and Bahia states, as well as in savanna areas of central Brazil. Another habitat that is rich in carnivorous plant species is found along coastal areas and is known as restingas (Rivadavia 2002), which occur all along the c. 8500 km of coastal Brazil.
Mice feeding on Sarracenia secretion
Authors: Gray Don
Published: February 2022

This story started a couple of years back when I arrived at my New Zealand greenhouse and found a pair of native nectar feeding birds we call wax eyes (Zosterops lateralis) flying along the inside of the greenhouse and hanging around a group of autumn Sarracenia leucophylla pitchers. I managed to take a couple of very average photos of the wax eyes feeding from the mouths of the S. leucophylla.
Sisi Masalah Kemiskinan dari Sustainable Development Goals Melalui Perspektif Ekologi Manusia
Authors: Dwiki Faiz Sarvianto
Published: February 2022

Secara global, hingga kini upaya untuk mengatasi permasalahan sosial-ekonomi dengan lingkungan selalu dikaitkan melalui Sustainable Development Goals (SDGs). Namun, di dalamnya sendiri ada masalah kemiskinan sebagai hal utama yang harus dianalisis untuk perencanaan pembangunan ke depannya secara holistik. Kajian ini dengan menggunakan alat analisis three divides, iceberg model, dan systems theory melalui pendekatan kualitatif harus bisa mendeskripsikan fenomena kemiskinan dalam SDGs ini. Hasilnya; ketiga alat analisis tersebut memiliki poin utama masing-masing yang menjelaskan fenomena kemiskinan dalam SDGs sesuai porsinya masing-masing.
Peranan Kearifan Lokal Sistem Sasi Dalam Pengelolaan Sumber Daya Laut Indonesia
Authors: Putri Nurfani Indah
Published: February 2022

Indonesia sebagai pemilik keanekagaraman hayati terbesar memiliki pula berbagai kearifan lokal yang didalamnya tersimpan jutaan makna. Sasi merupakan salah satu bentuk kearifan lokal yang berasal dari Maluku. Bentuk kearifan lokal ini yaitu upaya untuk melestarikan sumber daya alam darat maupun laut serta dapat membantu upaya konservasi. Oleh karena itu, penelitian ini bertujuan untuk mengetahui peranan sasi sebagai sistem dalam pengelolaan sumber daya laut berbasis kearifan lokal  di wilayah pesisir Indonesia. Metode penelitian yang digunakan dalam penelitian ini ialah studi literatur, yaitu membaca, mempelajari, mengkaji, serta menganalisis terkait dengan literatur yang berhubungan dengan peranan sasi sebagai kearifan lokal dalam pengelolaan sumber daya laut Indonesia. Hasil penelitian menunjukkan bahwa Sasi sebagai kearifan lokal masyarakat adat Maluku adalah modal dan model pengelolaan serta perlindungan lingkungan di tingkat regional, khususnya Maluku dan nasional, di mana penggunaan sumber daya alam harus harmonis dan seimbang fungsi lingkungannya.
A sensitive Cu(salophen) modified screen-printed electrode for simultaneous determination of dopamine and uric acid
Authors: Beitollahi Hadi , Tajik Somayeh , Aflatoonian Mohammad Reza , Makarem Asghar
Published: February 2022

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This research applied a nanostructured electrochemical sensor with a screen-printed electrode (SPE) for examining the dopamine (DA) electrocatalytic oxidation when uric acid (UA) was present. Cu(salophen) nanostructured modified SPE Cu(salophen)/SPE was employed to investigate the electrochemical behavior of DA. At optimal pH (pH 7.0), oxidation of DA at the modified electrode takes place at a potential around 100 mV less positive than at the unmodified SPE. Chronoamperometry was used to determine the diffusion coefficient of DA (D = 1.96×10-5 cm2 s-1). Differential pulse voltammetry (DPV) showed linear response in the range between 0.2-450.0 μM for DA. The limit of detection (LOD) of DA was computed to be 0.05 μM. Moreover, Cu(salophen)/SPE was employed for determining DA in the presence of UA using DPV. The DPV results showed that at the modified electrode, two well-separated oxidation peaks of DA and UA could be obtained at potentials of 180 and 325 mV, respectively. This separation forms the basis for the co-detection of these two materials on the surface of Cu(salophen)/SPE. This sensor was  then employed to determine DA and UA in real specimens.
Surgical treatment for morbid obesity in patients
with type 2 diabetes mellitus
Authors: Wysocki Michał
Published: February 2022

Shortly after its implementation, laparoscopic sleeve gastrectomy (LSG)
has become the most commonly performed bariatric surgery. It is widely believed that DM2 and the associated chronic hyperglycemia (expressed by glycated hemoglobin – HbA1c) increase the risk of postoperative
complications and mortality, what has been confirmed in some branches
of surgery. Hence research on its effect on postoperative outcomes after
LSG is extremely valuable. There is a lack of studies analyzing the influence of LSG on prediabetes and DM2 at various time intervals after surgery, especially in the perioperative period, what is important from the
perspective of patient care. A retrospective, multicenter observational
study of LSG patients and a prospective observational study in DM2 patients and control group that were enrolled in either LSG or LRYGB with
comparison of the 24-hours glucose fluctuations over a 10-day perioperative period using a continuous glucose monitoring system were conducted. Preoperative HbA1c levels did not significantly increase the chance
of developing perioperative and postoperative complications, as well as
prolonged hospital stay after LSG. HbA1c >7.3% increased the risk of hospital re-admission. The period of reactive hyperglycemia was recorded
in response to the surgical trauma on the 1st and 2nd postoperative days
after LSG and LRYGB. From the 3rd day, significantly lower mean daily
glucose levels were observed in patients with DM2 after LRYGB compared to patients after LSG. Regardless of DM2, significantly lower mean
daily glucose levels were present in all LRYGB patients at from 7th to 10th
day as compared to the LSG.
Isotopic Fission-yield Calculation of U-233, U-238 and Th-232 for Fast Energy Spectrum
Authors: Waris Abdul , Kurniadi Rizal , Perkasa Yuda S. , Suwoto Suwoto
Published: February 2022

An isotopic fission yield calculation method for fast energy spectrum of neutron has been proposed. This method was derived from a systematic of fission mass yield and a nuclei decay probability. The decay probability was calculated from the level density parameters that derived from a new potential function in combining with the shell correction. The potential function is a modified Wood-Saxon potential that we have called as an extended-Wood-Saxon potential. We have employed the data from RIPL-2 (Reference Input Parameter Library-2) in calculating the level density parameter. The calculation shows similar results compared to the isotopic mass yields of JENDL 3.2 for 233U and 232Th.
Global innovation program for nanoscience education -How can we use electrons for our future, Hydrogen society-
Authors: Yamaguchi Mitsuomi , Hamasaki Mitsugu , Obara Masumi , Obara Kozo , Watanabe Kenji
Published: February 2022

The change of global climate suggests the requirements of new technologies, which can suppress or improve the atmospheric composition. In this paper, we show a revolutionary car technology to decrease CO2. The key is the change of the fuel, from gasoline to hydrogen+H2O. The fuel revolution generates hydrogen economy and induces new scientific targets. Nanoscience and nanotechnology are most expectable tools. Especially, understanding the varieties of characteristics of materials in electronic level is the most important therma. We propose international collaborations on nanoscience education to promote our knowledge and understanding each other.
Mechanical Alloying of Fe-C System Based Alloy
Authors: Rochman Nurul Taufiqu
Published: February 2022

This paper reviews the research of the author’s group regarding mechanical alloying (MA) of Fe-C system based alloy over the last ten years. Powder mixtures of Fe-xC-yM (x and y=0~6 mass %, M: additive element such as Mn, Si, Cr) were mechanically alloyed (MAed) by using a planetary ball mill under Ar gas atmosphere for various time up to 100 h. The MAed powders then were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and differential thermal analysis (DTA). First, effect of MA time on powders particles was described. Effects of other MA conditions such as temperature, rotation speed and additive elements were then discussed in detail. In the Fe-C system based alloys, amorphization of graphite powders occur first during the early stage of MA and super-saturated iron solid solution is then formed and at the same time, the crystallite size becomes smaller. The carbon content reaches its limitation (about 1.30 at %). The condition of MA gave an effect to the alloying process.
Characterization of Subsurface Coal Using Seismic Tomography : a Case Study in Muara Enim South Sumatera
Authors: Nurhandoko Bagus E. B. , Mubarok Syahrul , Sukmana Indriani , Ambia Fajril , Sulistyanto Budi , Syafrizal Syafrizal , Wiyanto Y. , Rudiyanto Hussein
Published: February 2022

In recent years, coal as well as coal bed methane becomes important energy resources. Therefore, the characterization of coal seam is also important in predicting the quality, porosity and pore’s fluid of CBM’s reservoir. Seismic wave is very important parameter to characterize reservoir’s properties of coal bed methane as well as quality of coal. In this paper, we show methodology to image the subsurface velocity using seismic tomography. It is very useful for characterizing the coal’s seam as well as to detect the position of intrusion body. A case study was carried out in Suban Block, Muara Enim Sumatera. This coal mining block contains igneous rock intrusion which becoming main control of coal’s quality. Coal which is close with intrusion body usually has better quality than far zone. To acquire the data, we used 48 channels of seismic recorder controlled by telemetry for controlling the shot and first break. Then, data are processed by Fresnel interpolated wave-path (FIW) wide-band inversion tomography. The results show that the intrusion body can be imaged clearly and the seam coal can be delineated from well information. The information in well controls are quite match with tomography results.
A Comparative Study of Anopheles Gambiae Male Mosquito’s Response to Frequency Modulated [FM] and Pulse Modulated [PM] Waves at Different Acoustic Frequencies and Distances
Authors: Maweu Maweu , L. M Muia , A. L Deng
Published: February 2022

The efficiency of an electronic device meant to disrupt acoustic communication between male and female Anopheles gambiae mosquitoes was tested by recording approaches of the males towards the device as a function of distance and frequency. Different bioassays were conducted with broadcasts from the device and taped mimics of the female species wing beats at different distances and frequencies. A large number of the males, 85% remained near the broadcast speaker for a significantly longer period when the broadcast sounds of the device were at 380 Hz than at any other frequency range. The taped mimic sounds of the female mosquitoes in flight elicited a maximum response rate of 75 %. A test involving a choice between the device and taped sound mimics by male mosquitoes revealed that a high number (75 %) of them flew towards the device while 10% were attracted by the taped sounds whereas 15 % were undecided and made oscillatory motion between the two sources. Additional bioassays conducted to examine the effect of the device on non-flying males showed that almost 75 % were disturbed and approached the speaker within a distance of 0.5 m, which confirmed a radiative near-field communication for these insects.
Synthesis and Characterization of Bi2TixV1-xO5.5-δ as Electrolyte Material in Solid Oxide Fuel Cell
Authors: Prijamboedi Bambang , Sundari Citra Deliana Dewi , Rusli Rolan , Ismunandar Ismunandar
Published: February 2022

Oxide materials of Bi2TixV1-xO5,5-δ have been synthesized by means of conventional solid state reaction method. Substitution of Ti atom for the V sites leads to the formation of single phase Bi2TixV1-xO5,5-δ material with I4/mmm space group of tetragonal structure as well as gives results in large grain size and good sinterability of the ceramic material. With Ti concentration of x = 0.2, sample without the presence of porous could be obtained. The ionic conductivity of Bi2TixV1-xO5,5-δ increases significantly with the presence of Ti atoms. This Ti substitution also reduces phase transition temperatures in Bi2TixV1-xO5,5-δ materials. The conductivity data and scanning electron microscope images show that the Ti concentration in Bi2TixV1-xO5,5-δ could be applied as much as x = 0.2, which is higher than reported before and it still gives better properties.
The Change in Physical Properties of Bi2Ca2Co2O8 Thermoelectric Materials Induced by Pb and Rare-Earth Dopings
Authors: Sutjahja Inge Magdalena
Published: February 2022

We report in this paper the change in the physical properties due to dopant effect in Bi2Sr2Co2O8 parent compound system. The doped samples consists of Pb-doped samples (Bi2Sr2Co2O8, x = 0, 0.5, 1.0, 1.5, and 2.0) and RE-doped samples (Bi2-xPbxCa1.9RE0.1Co2O8, RE = Y, La, Pr, Sm, Eu, Gd, and Ho). The structure of this layered oxide system consist of an alternate stack of CoO2 layer and Bi2Sr2O4 block along the c-axis with misfit structure along b-direction. From the analysis of XRD data it is found that the c-axis parameter reduced significantly in the RE-doped samples compared with those of Pb-doped samples, while the value of misfit degree almost the same. The changes in these lattice structures are accompanied by variation in the spin-state of Co-ions and electrical conductivity. We argue that these structural changes and its effect on the electrical transport properties as well as control of the magnetism plays a pivotal role in determining the thermopower in this class of magnetic thermoelectric materials through the entropy of the charge carriers. This, in turn, will determine the thermoelectric performance for application.
Transport and AC Impedance Studies of Plasticized-Chitosan Based Polymer Electrolytes
Authors: Khiar A.S.A , Arof A.K.
Published: February 2022

Dimethyl Carbonate (DMC)-plasticized chitosan-based polymer electrolytes were prepared in the present work. The sample 37.5 wt% chitosan - 37.5 wt% NH4CF3SO3 - 25 wt% DMC showed the highest conductivity of (1.95±0.15) x 10-6 S/cm. From calculated values obtained using the Rice and Roth model, the increase in conductivity is due to the increase in the number density of mobile ions. Universal Power Law was used to analyze the AC conductivity of the sample. Arrhenius behavior was observed in the plot of hopping frequency; ωP against temperature. The AC conductivity master curve was obtained for the highest conducting sample when scaled vertically by σ and horizontally by ω .
Design Study of Thorium Cycle Based Long Life Modular Boiling Water Reactors
Authors: Trianti Nuri , Su’ud Zaki , Riyana Eka Sapta
Published: February 2022

Design study of long life (cycle) Boiling Water Reactor, which can be operated for 20-30 years of operation time without the necessity of refuelling during that period, has been performed. In shown in the previous study Th232-U233 cycle based fuel has potential for longer operation time in the thermal reactor domain. To increase reactor operation time and minimize excess-reactivity burnable poison may be used. Protactinium (Pa-231), Np-238, or gadolinium has good properties for such purpose. Here based on the previous study we select Protactinium and Gadolinium poisons to be used in the present study. Optimizations the content of 231Pa in the core enables the BWR core to sustain enough reactivity for long period of time with reasonable burn-up reactivity swing. Based on the optimization of fuel element composition (Th and Pa) in various moderation compositions can be achieved reactor core with longer operation time, 20 ~ 30 years operation without fuel shuffling or refuelling. Similarly Gadolinium has been successfully used to extend refuelling time and reduce excess reactivity during burnup period for both oxide fuel and nitride fuel.
Landslide Dynamics and Determination Critical Condition Using of Resistivity Method in Desa Negeri Lima Ambon
Authors: Souisa Matheus , Hendrajaya Lilik , Handayani Gunawan
Published: February 2022

Ambon Island is a volcanic island arc and included in the territory of the archipelago of small islands are associated with subduction zones that have a high degree of vulnerability to natural disasters, such as erosion and landslides on a particular slope conditions. This study aims to determine the dynamics of avalanches below the surface in the area of the landslide and determine the position of the gelincirnya. The study area in the mountains of Ulak Hatu Negeri Lima Ambon. Research using geoelectric of resistivity with Wenner-Schlumberger configuration. Geoelectric interpretation results correlated with the drill data to obtain landslide field located at a depth of approximately 5 m - 30 m and lithology dominated by low resistivity values with the structure of a layer of clay mixed with layers of weathered rock and clay layer with water saturated. Both of these layers contact each other and form the slope of the ground, causing the potential for critical slip thereon and allows the subsequent landslides. Critical location landslide direction of the obliquity of the avalanche that is, toward the cliff and the geometry of the type of debris avalanches of rocks and debris flow. Estimation of landslides occur in addition to the local geological conditions, but strongly influenced by rainfall reached 335.0 mm, earthquakes and coupled with a slope of 119.0%.
Two-Dimensional Steady Flow Modeling of Ideal Fluid in Porous Medium Using Finite Element Method
Authors: Anwar Hairil , Srigutomo Wahyu
Published: February 2022

Ideal fluid is a fluid which is uncompressed and has no viscosity. A steady stream of ideal fluid in a porous medium can be modeled using finite element method. The finite element method is a numerical method that can be used to solve boundary-value problem governed by a differential equation and a set of boundary conditions. In this modeling, the linear system of equations derived using Galerkin approach for linear triangular elements. Irregular geometry and variation in permeability distribution models are used. The solution obtained in form of fluid head and fluid flow velocity distribution in the modeling domain.
An Experimental Investigation on the Thermodynamic Characteristics of DBD Plasma Actuations for Aircraft Icing Mitigation
Authors: Kolbakir Cem , Hu Haiyang , Liu Yang , Hu Hui
Published: February 2022

We report the research progress made in our research efforts to utilize the thermal effects induced by DBD plasma actuation to suppress dynamic ice accretion over the surface of an airfoil/wing model for aircraft icing mitigation. While the fundamental mechanism of thermal energy generation in DBD plasma discharges were introduced briefly, the significant differences in the working mechanisms of the plasma-based surface heating approach from those of conventional resistive electric heating methods were highlighted for aircraft anti−/de-icing applications. By leveraging the unique Icing Research Tunnel available at Iowa State University (i.e., ISU-IRT), a comprehensive experimental campaign was conducted to quantify the thermodynamic characteristics of a DBD plasma actuator exposed to frozen cold incoming airflow coupled with significant convective heat transfer. By embedding a DBD plasma actuator and a conventional electrical film heater on the surface of the same airfoil/wing model, a comprehensive experimental campaign was conducted to provide a side-by-side comparison between the DBD plasma-based approach and conventional resistive electrical heating method in preventing ice accretion over the airfoil surface. The experimental results clearly reveal that, with the same power consumption level, the DBD plasma actuator was found to have a noticeably better performance to suppress ice accretion over the airfoil surface, in comparison to the conventional electrical film heater. A duty-cycle modulation concept was adopted to further enhance the plasma-induced thermal effects for improved anti−/de-icing performance. The findings derived from the present study could be used to explore/optimize design paradigm for the development of novel plasma-based anti−/de-icing strategies tailored specifically for aircraft icing mitigation.
Reactive Oxygen Species (ROS) in the Pathophysiology of Rheumatoid Arthritis (RA)
Authors: Ahsan Haseeb , Yusuf Hasan Mohammad , Ahmad Rizwan
Published: February 2022

Free radicals are highly reactive molecules that are unstable and have extremely short-short half-life. They are derived from either oxygen (reactive oxygen species, ROS) or nitrogen (reactive nitrogen species, RNS) in mitochondria, plasma membrane and endoplasmic reticulum due to oxidative stress and damage. ROS/RNS are physiologically useful at low concentrations and are responsible for the activation of redox-sensitive signaling pathways, phagocytosis of infected cells and removal of abnormal and aging cells. The endogenous sources of ROS are the electron transport chain, the respiratory burst of phagocytes and oxidation of lipids. These radicals react with biomolecules such as DNA, proteins and lipids and may cause pathophysiological conditions such as autoimmunity, carcinogenesis, and neurodegenerative diseases. The role of ROS in autoimmune response remains complex and they have been implicated in the initiation, generation and amplification of novel epitopes. ROS also appears to play a critical role in rheumatoid arthritis (RA), a systemic autoimmune disease of the joints also known as inflammatory arthritis (IA). ROS are involved in the initiation of various signaling pathways and have a significant role in the pathophysiology of RA.
Overview of Liquid Crystal Research: Computational Advancements, Challenges, Future Prospects and Applications
Authors: Malik Maria , Aamir Iqbal Muhammad , Shahid Wajeehah , Zaheer Ud Din Syed , Ikram Mujtaba , Anwar Nadia , Shahid Samiah , Idrees Faryal
Published: February 2022

Liquid crystal (LC) is a fascinating state of matter that combines order and mobility at multiple hierarchical levels, spanning from nanoscale to the macroscale, or from molecular to the macroscopic, and is composed of molecules and layers as thin as of a few nanometer in size. This unique combination allows such a system to adapt to a wide range of external stimuli, including temperature, magnetic field, electric field, mechanical stress, light, chemical reaction, and electrochemical response, by determining a new lowest energy configuration. Liquid crystalline nanostructures efficiently transmit and amplify information and attributes over macroscopic sizes due to their dynamic nature. The responsiveness and diversity of LCs provide enormous potential and challenges for fundamental scientific insights as well as opening the door to countless applied applications. Recent breakthroughs in nanotechnology have boosted the discipline, both in terms of theoretical simulations and the ability to fabricate nanoscale structures such as sub-wavelength gratings, nanoporous materials, and nanoparticles. Because LC materials are switchable, a new family of active plasmonic and nanophotonic devices is emerging, describing fascinating basic research processes as well as the creation of upgraded devices. This chapter discusses the fundamentals, computational advances, future prospects and challenges, as well as potential applications of LCs.
A Heuristically Generated Metric Approach to the Solution of Chase Problem
Authors: Ömür Bucak İhsan
Published: February 2022

In this work, heuristic, hyper-heuristic, and metaheuristic approaches are reviewed. Distance metrics are also examined to solve the “puzzle problems by searching” in AI. A viewpoint is brought by introducing the so-called Heuristically Generated Angular Metric Approach (HAMA) through the explanation of the metrics world. Distance metrics are applied to “cat and mouse” problem where cat and mouse makes smart moves relative to each other and therefore makes more appropriate decisions. The design is built around Fuzzy logic control to determine route finding between the pursuer and prey. As the puzzle size increases, the effect of HAMA can be distinguished more clearly in terms of computation time towards a solution. Hence, mouse will gain more time in perceiving the incoming danger, thus increasing the percentage of evading the danger. ‘Caught and escape percentages vs. number of cats’ for three distance metrics have been created and the results evaluated comparatively. Given three termination criteria, it is never inconsistent to define two different objective functions: either the cat travels the distance to catch the mouse, or the mouse increases the percentage of escape from the cat.
Social Resilience in Local Food Systems: A Foundation for Food Security during a Crisis
Authors: Zerbian Tanya , Adams Mags , Wilson Neil
Published: February 2022

The Covid-19 pandemic has presented new challenges for food production, distribution, and consumption and has exacerbated existing inequalities in access to food. However, it has also provided new opportunities for local communities to work differently, to increase collaboration, and to improve outcomes for those most in need. This chapter focuses on how various local food initiatives within a specific UK city, Preston in NW England, interact, cooperate and collaborate, and the changes to these interactions during a crisis. The findings derive from a social network analysis (SNA) conducted during summer 2020 examining how relationships changed during the crisis, and online semi-structured interviews. Using resilience as a framework to understand these dynamics, the chapter argues that social preconditions, such as a previously organised local food network in partnership with local authorities, have helped communities to self-organise and respond to difficult circumstances. Moreover, it also highlights the ways in which responses to major disruption (Covid-19) can bring about the collective questioning of current models of emergency food provisioning and create stronger collaborative bonds within already organised networks. We demonstrate that such processes could potentially improve food insecurity outcomes by combining locally grown food and dignified food access options.
Chiral Inversion of Active Compounds in Plant Extract
Authors: Thi Nguyen Ngoc-Van
Published: February 2022

Chiral inversion is always mediated by enzymes and varies with solvent, pH and temperature. Considerable attention should be paid to the mechanism of the inversion reaction and its pharmacological and toxicological results. This chapter will discuss the mechanism of chiral inversion of plants in secondary metabolize and its importance in creating pharmacology consequences. Plant stereoisomers of alkaloids and flavonoids exhibit a wide range of pharmacological effects. Recent advances in chiral analysis for the herbal plants in clinical research & forensic toxicology by experiments in which one enantiomer was given to the experiment subjects in a specific situation. Demonstration of metabolic chiral inversion may have consequences for the development of a new pharmaceutical entity. Hence, it helps a better understanding of chiral compounds in plants, facilitating the application for drug development from medicinal herbs and thereby reducing bioanalytical and toxicology workload.
Processing of Tree Nuts
Authors: Chen Chang , Pan Zhongli
Published: February 2022

Tree nuts are consumed as healthy snacks worldwide and are important economic crops. In this chapter, post-harvest processing technologies of tree nuts are discussed, with focus on the drying, disinfection, disinfestation, and downstream processing technologies (blanching, kernel peeling and roasting) for the control and preservation of product quality and safety. Almonds, walnuts, and pistachios are selected as the representative crops for the discussion. Current status, recent advances, and challenges in the scientific research, as well as in the industrial productions are summarized. Some new perspectives and applications of tree nut processing waste and byproducts (such as shells and hulls) are also introduced. The contents presented in this chapter will help both scientists and stakeholders to better understand the tree nut processing and provide technological recommendations to improve the throughput, efficiency, and sustainability of the processes, and preserve the quality and safety of the products.
Fungal Diseases of Wheat
Authors: Kayim Mukaddes , Nawaz Hira , Alsalmo Abdulkreem
Published: February 2022

Wheat is considered the first crop that is grown on earth. It is a staple food in many regions of the world. Due to the increase in the world’s population, it is very important to increase wheat production. With an estimate in 2050, almost 50% more production of wheat will be required due to the increase in population. Increased productivity of wheat is the biggest challenge for researchers. It faces several biotic (microbial diseases) and abiotic (water, temperature, and climatic change) limiting factors. But the major threat for wheat is due to a large number of fungal diseased pathogens, which causes massive and destructive loss to the crop. It includes rusts, smuts, Fusarium head blight, Septoria leaf blotch, tan spot, and powdery mildew that cause the most serious losses. It was estimated in 2019 that almost 22% yield loss of wheat was due to diseases. These percentages will increase with time due to mutation and diversity in virulent strains. This chapter includes all major and minor fungal diseases of wheat, symptom, disease cycle, spore identification, disease losses, etiology, and integrated disease management.
Power Converters Electromagnetic Emissions with Methods to Measure, Compare and Reduce Noise Fields
Authors: Nath Debasish
Published: February 2022

Power electronic converters find widespread applications in the present times. However, they have been known to be rich sources of electromagnetic emissions. The converters are required to operate in compliance with their electromagnetic environment, for which they must adhere to emission limits imposed by the standards. The power converters are duly tested, and their emission levels are measured and checked for compliance. Therefore, understanding the emission mechanism is necessary to design a power converter that will satisfy the EMC requirements. In addition to the switches, parasitic elements, which are invariably present in every circuit, play a crucial role, especially in the higher frequency range, in degrading the EMC performance of converters. The present chapter takes up these aspects and discusses the reasons behind emissions and the roles played by switch characteristics and parasitic elements. Demonstrations through simulations and computations are presented all along with the discussions, and inferences are accordingly drawn. Finally, the standard specifications for emission measurements and analysis through measuring EMI receiver are briefly introduced. A few popular methods to reduce emissions are demonstrated. The final improvement in the EMI performance is shown with the help of EMI receiver output, in accordance with the CISPR standards.
Can Computed Tomography Colonography Replace Optical Colonoscopy in Detecting Colorectal Lesions?: State of the Art
Authors: Chini Alessia , Manigrasso Michele , Cantore Grazia , Maione Rosa , Milone Marco , Maione Francesco , De Palma Giovanni Domenico
Published: February 2022

Colorectal cancer is an important cause of morbidity and mortality worldwide. Optical colonoscopy (OC) is widely accepted as the reference standard for the screening of colorectal polyps and cancers, and computed tomography colonography (CTC) is a valid alternative to OC. The purpose of this review was to assess the diagnostic accuracy of OC and CTC for colorectal lesions. A literature search was performed in PubMed, Embase, and Cochrane Library, and 18 articles were included. CTC has emerged in recent years as a potential screening examination with high accuracy for the detection of colorectal lesions. However, the clinical application of CTC as a screening technique is limited because it is highly dependent on the size of the lesions and has poor performance in detecting individual lesions <5 mm or flat lesions, which, although rarely, can have a malignant potential.
DIVULGAÇÃO CIENTÍFICA EM TEMPOS DE PANDEMIA
Authors: Inomata Danielly Oliveira , Silva Junior Carlos Lima da , Sampaio Tatiane Batani , Silva Matheus Freitas da
Published: February 2022

Discute o podcast como uma ferramenta para a democratização do conhecimento e divulgação científica. Tem como objetivo relatar a atuação do Podcast Biblioquê? como instrumento de produção de divulgação de informação situacional sobre a Pandemia. Trata-se de um relato de experiência da execução de projeto de extensão universitária, da Universidade Federal do Amazonas, por docentes e discentes do curso de Biblioteconomia. Analisa que (i) a extensão universitária pode funcionar como um meio para levar a sociedade informações situacionais com vistas ao combate de fake news e desinformação, sendo eficiente em tempos de crise como a pandemia do novo coronavírus; (ii) a pandemia deixou em evidência diversos problemas da sociedade, em várias esferas, dentre eles, o ainda deficiente uso das tecnologias da informação e comunicação; (iii) os conteúdos com maior audiência, estavam relacionados ao relato de confinamento (que trouxe conteúdo sobre saúde mental, leituras, reflexões e rede de apoio) (36,5%) e Competência sobre informação situacional (29,9%). Conclui que a roteirização dos episódios especiais foram capazes de cumprir a proposta, alcançando o seu público, ao exercer o papel de informar e comunicar a comunidade acadêmica e a sociedade sobre as mudanças e consequências causadas pelo novo Coronavírus.