bluuebunny/crossref_metadata_2025 huggingface dataset:
Die Experimentalchemie und ihre Protagonisten an der Universität Halle
Authors: Kuschel Frank
Published: May 2022

The history of chemistry in Halle (Germany) impressively demonstrates the modern leitmotif of verifiable experimentation. The old masters always handed their inspirations and findings from experimental research on their students and thus stood for a development at the University of Halle that had already outgrown alchemy, medicine and pharmacy at an early stage. It experienced a unique rise with personalities such as Richard Felix Marchand, Heinrich Wilhelm Heintz and the Liebig student Jacob Volhard. This tradition continued in the 20th century with focal points such as liquid crystals, polymerization catalysis or stereochemistry, and is told through its protagonists. A collection of links to digitized sources as well as an index of persons with biographical data make the book a reference work on a long underestimated Halle scientific culture. German language abstract: Die Chemiegeschichte in Halle zeigt eindrucksvoll das neuzeitliche Leitmotiv des verifizierbaren Experiments. Die alten Meister trugen ihre Inspirationen und Erkenntnisse aus der experimentellen Forschung stets an ihre Schüler weiter und standen damit für eine Entwicklung an der Universität Halle, die bereits früh der Alchemie, Medizin und Pharmazie entwachsen war und mit Persönlichkeiten wie Richard Felix Marchand, Heinrich Wilhelm Heintz und dem Liebig-Schüler Jacob Volhard einen einzigartigen Aufstieg erlebte. Diese Tradition setzte sich im 20. Jahrhundert mit Schwerpunkten wie Flüssigkristalle, Polymerisationskatalyse oder Stereochemie fort und wird anhand ihrer Protagonisten erzählt. Eine Linksammlung zu digitalisierten Quellen sowie ein Personenregister mit Lebensdaten machen das Buch zu einem Nachschlagewerk über eine lange unterschätzte hallesche Wissenschaftskultur.
Cabaran Pembelajaran dalam Talian Semasa Pandemik Covid-19 Bagi Pelajar Pengajian Bahasa Arab di KUIS
Authors: Abdullah Nasimah , Mohamed Zin Mohd@Mohamed
Published: May 2022

Pandemik Covid-19 yang melanda dunia telah memaksa Malaysia melaksanakan Perintah Kawalan Pergerakan (PKP) pada Mac 2020. Pelaksanaan PKP telah memberikan impak yang besar kepada sektor pendidikan negara kerana semua institusi pendidikan ditutup. Kementerian Pelajaran Malaysia (KPM) kemudiannya telah melaksanakan kaedah pembelajaran dalam talian menggantikan kaedah pembelajaran secara bersemuka. Penggunaan pedagogi norma baharu ini merupakan cabaran besar kepada pelajar terutamanya yang berpendapatan sederhana dan rendah. Kajian tinjauan ini dijalankan untuk mengenal pasti cabaran pembelajaran dalam talian yang meliputi kemudahan peralatan pembelajaran, persepsi pelajar mengenai pembelajaran dalam talian dan penilaian serta aktiviti pembelajaran. Kajian kuantitatif dan deskriptif telah dijalankan terhadap 123 pelajar peringkat diploma dan sarjana muda dalam bidang pengajian Bahasa Arab di Kolej Universiti Islam Antarabangsa Selangor (KUIS). Kajian ini dijalankan melalui edaran borang soal selidik yang dibina melalui google form menggunakan skala likert 5 mata. Dapatan kajian dianalisis menggunakan perisian pakej statistik sains sosial (IBM SPSS versi 25.0). Dapatan kajian dianalisis dan dihuraikan secara deskriptif melalui petunjuk nilai purata, sisihan piawai dan interpretasi. Dapatan kajian menunjukkan bahawa secara keseluruhan kemudahan peralatan pembelajaran dan persepsi pelajar mengenai pembelajaran dalam talian berada pada tahap sederhana dengan nilai purata keseluruhan masing-masing = 3.0 dengan sisihan piawai = 0.468, dan nilai purata 3.31 dengan sisihan piawai = 0.305. Manakala dapatan mengenai penilaian dan aktiviti pembelajaran berada pada tahap tinggi dengan nilai purata keseluruhan = 3.57 dengan sisihan piawai = 0.412. Secara keseluruhannya, dapatan kajian menunjukkan, bahawa pelajar memberikan maklum balas positif terhadap aktiviti pembelajaran dan penilaian yang dilaksanakan dalam talian walaupun tahap kemudahan peralatan pembelajaran dan persepsi pelajar mengenai pembelajaran dalam talian adalah sederhana.
Counselling Intervention for Tobacco and Methamphetamine Addiction (Dual Users)
Authors: Abdul Aziz Abdul Rashid , Ramachandran Subashini
Published: May 2022

ABSTRACT

Statistics released by the National Anti-Drug Agency showed that drug addiction activities are still vigorous. Therefore, this study was done to look at the effectiveness of counselling intervention, specifically involving dual users’ addiction. The subject involved in this case study is a client who is a 30-year-old lady which involved in dual drug use (tobacco and methamphetamine). She is currently under rehabilitation program with Agensi Anti Dadah Kebangsaan (AADK) Daerah Kinta. Due to the addiction to smoking and substance, it has affected the client in committing responsibilities as mother to her child. Client also experiences emotional stress in view of her husband often forces her to take methamphetamine. Three individual counselling session are conducted. The counseling process has been handled using the Motivational Interviewing (MI) and Cognitive Behavior Therapy (CBT) approaches. Findings from the intervention session showed that the frequency of smoking was reduced. While the findings on the use of methamphetamine show that the client is determined to quit in the third session, there is no case of relapse. Counseling intervention is effective in helping clients to fight with tobacco and drug addiction. Indirectly, it is also helpful in managing other issues involving mental health of the client.
Exploring the Effectiveness of Counseling Intervention on Sedative Drug Addiction at Penjara Kajang
Authors: Abdul Aziz Abdul Rashid , Yahaya Mohd Shahril Bin
Published: May 2022

The COVID-19 pandemic which strike Malaysia and worldwide is a nightmare for most individuals. It brought various implications that in turn change the pattern of human’s life. There are some individuals who fail to adapt causing them to experience emotional disturbances that contribute to mental health problems. It also contributes to various social problems including drug abuse, domestic violence, divorce and others. Hence, this study was conducted to identify the causes and effects of sedative drug abuse as well as to examine the level of effectiveness of counseling interventions and coping strategies in solving this problem. This study was conducted qualitatively involving interview sessions and individual counseling sessions to one of the detainees in Kajang Prison who was involved in sedative drug abuse. The implementation of counseling sessions through Motivational Interviewing (MI) approach and Reality Therapy were conducted. The use of Motivational Interviewing in the initial session is seen to be effective in increasing client motivation. While the use of reality theory is seen to help clients in making decisions, plan and taking action. In conclusion, the right and proper counselling approach can help clients in the issue of drug addiction as well as the selection of coping strategies in dealing with the problems faced.
ERGENLİK DÖNEMİ ONİOMANİANIN DEPRESYON VE BENLİK SAYGISI ARACILIĞIYLA YORDANMASI ÜZERİNE BİR DERLEME ÇALIŞMASI
Authors: IŞIK Fatma , ASLAN Sevda
Published: May 2022

Çalışmanın temel amacı 12-21 yaş arası ergenlerde yaşanan depresyon ve benlik saygısı düzeyinin oniomania ile ilişkisini yordamaktır. Bu amaç doğrultusunda öncelikle oniomania kavramı terimsel olarak ele alınmış ardından kavramın tarihçesi incelenmiştir. Devamında oniomanianın sıklık ve yaygınlığı, etiyolojisi ve kuramsal çerçevesi ele alınmıştır. Kompulsif satın alma davranışı psikolojik faktörler başlığı altında incelendiğinde depresyon ve benlik saygısı kavramlarının tanımları yapılmış ve özellikle bu kavramlar ve kompulsif satın alma davranışı arasındaki ilişki araştırılmıştır. Bunlara ek olarak 12- 21 yaş arası ergenlik dönemi incelenerek bu dönem psikanalitik ve psikososyal kuram çerçevesinde ele alınmıştır.Çalışmanın temel amacı ergenlerde yaşanan depresyon ve benlik saygısı düzeyinin oniomania ile ilişkisini yordamaktır. Bu amaç doğrultusunda, öncelikle oniomania (alışveriş bağımlılığı) kavramı terimsel olarak ele alınmış, ardından kavramın tarihçesi incelenmiştir. Devamında oniomanianın sıklık ve yaygınlığı, etiyolojisi ve kuramsal çerçevesi ele alınmıştır. Kompulsif satın alma davranışı psikolojik faktörler başlığı altında incelendiğinde, depresyon ve benlik saygısı kavramlarının tanımları yapılmış, özellikle bu kavramlar ve kompulsif satın alma davranışı arasındaki ilişki araştırılmıştır. Bunlara ek olarak ergenlik dönemi incelenerek bu dönem psikoanalitik ve psikososyal kuram çerçevesinde ele alınmıştır.
BİREYLERİN TOPLUMSAL CİNSİYET ROLLERİNE İLİŞKİN TUTUMLARI İLE ROMANTİK KISKANÇLIKLARI ARASINDAKİ İLİŞKİ
Authors: KAPLAN Necip , TASA Hande
Published: May 2022

Bu araştırma, üniversite eğitimi gören bireylerin toplumsal cinsiyet rollerine ilişkin tutumları ile romantik kıskançlıkları arasındaki ilişkinin incelenmesi amacıyla gerçekleştirilmiştir. Bununla birlikte araştırmada, katılımcıların toplumsal cinsiyet rollerine ilişkin tutumları ve romantik kıskançlık düzeylerinin bazı demografik değişkenlere göre farklılaşıp farklılaşmadığı da incelenmiştir. Araştırmanın örneklemini, çalışmaya gönüllü olarak katılan 402 üniversite öğrencisi oluşturmaktadır. Katılımcılardan Sosyodemografik Bilgi Formu, Toplumsal Cinsiyet Rolleri Tutum Ölçeği (TCRTÖ) ve Romantik Kıskançlık Ölçeği (RKÖ) aracılığı ile veri toplanmıştır. Elde edilen bulgulara göre, öğrencilerin toplumsal cinsiyet rollerine ilişkin gelenekselci tutum puanları ile romantik kıskançlık puanları arasında pozitif yönlü anlamlı bir korelasyon bulunmaktadır. Ayrıca öğrencilerin toplumsal cinsiyet rollerine ilişkin tutumları cinsiyet, yaş, yaşanılan ilişkinin türü, yaşanılan ilişkinin devam etme süresi ve ailelerinin gelir düzeyine göre farklılaşmaktadır. Öğrencilerin romantik kıskançlık düzeylerinin de yaş, yaşanılan ilişkinin türü ve yaşanılan ilişkinin süresine göre farklılaştığı görülmüştür. Bulgular ilgili literatür ışığında tartışılmıştır.
INFLUENCE OF TEMPERATURE ON THE FLUORESCENCE DURATION AND ELECTRONIC SPECTRA OF METAL-FREE TETRAPYRROLES IN AN ORGANIC POLYMER
Authors: Arabei S. M. , Bel’kov M. V. , Makarova E. A. , Pershukevich P. P. , Solovyov K. N.
Published: May 2022

Spectral-luminescent characteristics and the duration of fluorescence were measured for a series of

metal-free tetrapyrroles in solid films of polyvinylbutyral at 293 and 77 K. The results obtained evidence

about the lack of the viscosity factor in the case of the fluorescence enhancement under study, i.e. for the

tetrapyrroles showing the enhancement effect in liquid solutions (tetraazaporphin, substituted tetraazachlorin),

duration of fluorescence in a film increases insignificantly on lowering temperatures to 77 K. Analysis

of experimental data made it possible to estimate the quantum yields of internal conversion and intercombinational

conversion for tetraazaporphin and tetraazachlorin, which are fundamental structures in the

tetrapyrrole series.
Out of Place
Authors: Davids Nuraan
Published: May 2022

Out of Placeoffers an in-depth exploration of Nuraan Davids’ experience as a Muslim ‘coloured’ woman, traversing a post-apartheid space. It centres on and explores a number of themes, which include her challenges not only as a South African citizen, and within her faith community, but as an academic citizen at a historically white university. The book is her story, an autoethnography, her reparation.

By embarking on an auto-ethnography, she not only tries to change the way her story has been told by others, transforms her ‘sense of what it means to live’ (Bhabha, 1994). She is driven by a postcolonial appeal, which insists that if she seeks to imprint her own way of life into the discourses which pervade the world around her, then she can no longer allow herself to be spoken on behalf of or to be subjugated into the hegemonies of others.

The main argument of
Out of Placeis that Muslim, ‘coloured’ women are subjected to layers of scrutiny and prejudices, which have yet to be confronted. What we know about Muslim ‘coloured’ women has been shaped by preconceived notions of ‘otherness’, and attached to a meta-narrative of ‘oppression and backwardness’. By centring and using her lived experiences, the author takes readers on a journey of what it is like to be seen in terms of race, gender and religion – not only within the public sphere of her professional identities, but within the private sphere of her faith community.
Ekologik muammolarni barkamol avlod salomatligiga ta’sirining falsafiy tahlili
Authors: Kistaubayev S.
Published: May 2022

Ushbu maqolada atrof-muhit ekologik yomonlashuvining inson salomatligiga salbiy ta’siri masalalari falsafiy tahlil qilin-gan. Ekologiyaning buzilishiga, eng avvalo, inson omili sabab ekanligi ko‘rsatilgan.
Giant Bullae In Lung Parenchyma — A Case Series
Authors: Chenimilla Nagender Prasad , Krishna B Ramya , Madire Ramu
Published: May 2022

Introduction: Bullae are air filled spaces in lung parenchyma which develop in various diseases and cause respiratory compromise. Bulla which occupies one third of hemithorax is considered as a giant bulla.

Case series: This case series consists of eleven cases of giant bullae with varied clinical and radiological features. Common presentations include breathlessness, associated para-septal emphysema and complications like pneumothorax.

Conclusion: Patients presenting with acute chest symptoms should also be evaluated for bullous disease and Computed tomography of chest can differentiate pneumothorax from giant bullae.
Novel Approach to Evaluate Classification Algorithms and Feature Selection Filter Algorithms Using Medical Data
Authors: Masood Fawad , Masood Junaid , Zahir Hina , Driss Kaouthar , Mehmood Nasir , Farooq Hassan
Published: May 2022

In today’s world, hepatitis is a widespread problem related to the medical field, which directly affects the lives of mankind. For patient survival, data mining is essential in predicting future trends using various techniques. This paper uses three feature selection filter algorithms (FSFAs): relief filter, step disc filter, and Fisher filter algorithm and 15 classifiers using a free data mining Tanagra software having UCI Machine Learning Repository. This process is done on a medical dataset with 20 attributes and 155 instances. As a result, the error rate is obtained in terms of accuracy, which shows the performance of algorithms regarding patient survival. This work also shows the independent comparison of FSFAs with classification algorithms using continuous values and the FSFA without using classification algorithms. This paper shows that the obtained result of the classification algorithm gives promising results in terms of error rate and accuracy.
 
Received: 6 April 2022 | Revised: 12 May 2022 | Accepted: 16 May 2022
 
Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.
High Index of Suspicion of Malignant Hyperthermia: A Case Report
Authors: Gurung Purna kala , Bhattarai Balkrishna
Published: May 2022

Lack of early detection due to either unawareness of the disease process or inadequate monitoring device, and lack of availability of dantrolene makes it difficult to manage malignant hyperthermia (MH). It has been reported that the risk of mortality rate increased by 50 % if skin temperature rather than core temperature was monitored. We hereby report the case of a 54 year old lady scheduled to undergo exploratory laparotomy for abdominopelvic mass who developed unexplained rise in end tidal carbon dioxide intraoperatively. Probably, this case appears to be one of the first to have been reported from Nepal of possible MH.
Analysis of Causes and Contributory Factors for Maternal Mortality during Covid-19 Lockdown
Authors: Basnet Tulasa , Sitaula Sarita , Sah Manoj Kumar , Yadav Punita
Published: May 2022

Background: Covid-19 pandemic affected maternal health directly by causing respiratory disease in pregnant women as well as indirectly by affecting health care delivery and caused sharp increase in maternal mortality. Aim: This study aimed to assess causes and contributing factors for maternal mortality during six months of Covid-19 lockdown. Methodology: This was a retrospective review of all maternal mortalities over the period of six months (23rd March - 22nd September 2020) after implementation of lockdown. Information regarding demographic variables, obstetric characteristics, referral, diagnosis, cause of death and any delay present were obtained from the patient records. The data were analyzed using SPSS 11.5 and descriptive statistics was used. Results: There were 19 maternal deaths, of which one was due to accidental cause. The MMR was 419 per 100,000 live births. Mean age was 29.16 ± 9.53 years with age ranging from 16 to 49 years, 44.4% women never had antenatal check-up, mean POG at presentation was 29.7 ± 9.7 weeks. Four patients died during early pregnancy (two (11.1%) due to abortion related complications and two molar pregnancies) and six (33.3%) expired during antenatal period. Three most common causes for maternal mortality were sepsis (27.8%), hypertensive disorder (22.2%) and obstetric hemorrhage (16.7%). Covid pneumonia caused one (5.6%) mortality. Main contributory cause was anemia (50%). Major delay was in providing appropriate care timely. Conclusion: Maternal mortality was very high during lockdown and the leading cause was sepsis contributed by anemia in most cases. Delays in screening high-risk pregnancies as well as delay in appropriate treatment were responsible factors.
Detection of Pesticide Residues in Olive Leaves From İzmir, Turkey
Authors: TAŞTAN Pelin , TAŞTAN Özge , YALCİN SAHYAR Buket
Published: May 2022

Turkey, especially the Aegean region, has very suitable lands for olive cultivation. In this work, the olive leaves extracts were treated with pesticide solution and also Bordeaux mixture. Olive varieties in their natural environment were collected after 1 year, and the amount of pesticides they contained was measured. As a result of the QuEChERS method using LC-MS/MS and GC-MS/MS techniques, no pesticide residues were detected in any samples. The pesticide residues determined in the samples used in this study do not exceed the maximum limits specified in the Turkish Food Codex and the European Commission. There are no quantifiable residues of abamectin, acetamiprid, azoxystrobin, difenoconazole, diflubenzuron, diflufenican, dimethoate, dodine, emamectin benzoate, indoxacarb, lufenuron, malathion, novaluron, phosmet, pyriproxyfen, spinosad, thiacloprid, and triflumuron were detected in any olive samples by using LC-MS/MS method. Also, alpha-cypermethrin, beta-cyfluthrin, cyflutrin, deltamethrin, and lambda-cyhalothrin were not detected in samples by GC-MS/MS method. Accordingly, they agree with the results found. The results obtained showed that the pesticide solution used protected the olives from pests and did not have a harmful effect on the olives.
Predictive Analytics on Contractual Faculty Future Retention Rate in Rural Areas of India with the help of Clinical Stress cum Retention Rate Model
Authors: Mahajan Vishal , Aithal P. S.
Published: May 2022

Purpose: Predictive Analytics study has been conducted on contractual faculty working in various engineering and management colleges in the border area of Gurdaspur, Punjab to find the retention rate of these faculty members against the various personnel policies adopted by these institutions.
Objective: Stress is described as a state of physiological unevenness. Albeit contemporary education sector in an eminent country such as India where regular jobs become penurious obsolete perhaps people still accord in this sector because of their interest in the teaching. On the contrary, most of the new faculty work on contract basis and their jobs are not secured or may be secured for a few months depending upon the contract period. A repercussion of this probe, the purpose of the exploration is to review job satisfaction level and their retention rate.
Design/Methodology/Approach: Study has been conducted with the help of non-probability convenient sampling by distributing questionnaires and conducting interviews on 150 faculty members working on a contract basis in government and private engineering and management colleges surrounding near an area of Gurdaspur district of Punjab, India.
Findings/Result: Personnel policies, faculty development, career growth, research support and work culture, all these parameters should clearly have considered by the administration of the engineering and management colleges of district Gurdaspur, Punjab during making any policies for the contact faculty in the future so that their satisfaction level and retention rate won’t be affected.
Research limitations/implications: Research has been conducted in Gurdaspur district of Punjab. Findings may vary from other geographical area of country. Study only covers faculty members; non-teaching faculty has not been covered in this study. Time constraint is another factor for the limiting sample size.
Originality/New knowledge/Interpretation/Value: Paradoxical to previous studies, this study also tests out the connection between anxiety feeling with job security of contract faculty dwelling in engineering colleges of Punjab, India with the aid of a stress model to assess the future of teaching in rural areas.
Paper Type: Analytical Research paper
Effect of Planned Teaching Programme Regarding Menstrual Hygiene among Teenage School-going Girls in a Selected School in Guwahati (Assam)
Authors: Das Bhagya Devi
Published: May 2022

Considering low level of knowledge of teenage girls regarding menstrual hygiene, the present study sought to assess the same among 30 girls of various age groups. The comparison of pre-test and post-test parameters showed significant improvement after administering structured teaching programme. Thus, it can be concluded that structured teaching is effective in increasing menstrual knowledge of teenage girls.
Remote Fault Monitoring of Substation Primary Equipment Using Embedded Technology
Authors: Mr. Prathamesh Rajendra Patil  , Mr. Prakashkumar Lalanprasad Sah  , Miss. Rucha Bajrang Joshi  , Mr. Pranav Sanjay Bhosale
Published: May 2022

We know that due to huge demand of electricity the size and complexity of distribution network has grown & because of that automation of substation becomes very important to increase its efficiency as well as to improve the quality of power being delivered at users end. So, our prototype will monitor the real time parameters like voltage, temperature, current, power of substation with Micro-controller unit & if any faults occur in distribution transformer it will gives indication during fault condition and immediately relay operates. The data of measured parameters will be available on smartphone/ desktop. This allows us to save time and money at the substation by reducing labour cost. Also, the functioning effectiveness, efficiency and power quality will undoubtedly improve with this approach.
FARMERS AND HERDERS CONFLICT IN CENTRAL BENIN: PRACTICES AND PROSPECTS FOR PEACEFUL COHABITATION
Authors: Morela TIOMON , Anselmea ADEGBIDI , Jérémie DOSSOU , Ramanoub FASSASSI
Published: May 2022

This paper investigates farmer-herder conflicts in detail, and compares historical and current peace brokerage committee conflict management settled in Agouna city in Benin with IA4RD approach system as innovative strategy. Literature, Focus Groups Discussion (FGD) including five persons, semi-structured interviews were used for data collection. Thematic Content Analysis (TCA) was used to analyze the content of the data. Diachronic and comparative analysis methods have been made for evaluation of the technical, economic, social, institutional and cultural changes that occurred in the community. The results revealed three types of farmersherders conflicts that drive from stakeholder’s behavior facing scarcity of grazing space for livestock, expansion of farmland due to soil poverty. The peace brokerage committee was efficient than former conflict regulation mechanism by contributing to conflict reducing, used two mode for conflict management. The approach led to peaceful cohabitation of farmers and herders and improving sustainable livelihood in the community. Findings suggest to politics and decision makers the strengthening of appease cohabitation of farmers and Fulani which improve agricultural development and local economy.
EFFECTS OF IRRIGATION AND SOIL MULCHING IN DIFFERENT GROWING ENVIRONMENTS ON STRAWBERRY YIELD AND QUALITY
Authors: Islam Md. Serazul , Pervin Shahnaj , Haque Md Anowarul
Published: May 2022

A field experiment was conducted to assess the effects of irrigation and soil mulches on the growth, yield and quality of strawberries in different cultivation environments. There were eight treatments in a randomized complete block (RCB) design with three replications used in this experiment. Plants grown under white polyethylene grew taller and more spread out than those in the open field environment. The experimental soil was sandy loam and the field capacity was 29.6%. Relating growing environments, a significant difference was seen in strawberry yield under covered field shaded with white polyethylene and drip irrigation (410.50 g) than those in the open field with manual spray irrigation (337.26 g). The highest gross yield (10.00 t/ha) was observed in covered field (Fc) with alternate day drip irrigation. The total sugar and reducing sugar contents of the strawberries produced in the open field were 3.33% and 0.81%, respectively, for black polyethylene mulches with 2-days irrigation intervals, for the covered field they were 2.40% and 0.60%, respectively used in drip irrigation. The plants growing under covered field with drip irrigation has enhanced total anthocyanin but recorded the lowest vitamin C. The plants in the straw mulch plots used more water compared to those in the polyethylene mulch. The highest water use efficiencies were found using polyethylene mulch for both in the covered and open field environments with an irrigation intervals of 2-day.
Frequency Domain Based Conditions for Determining Convergence Learning Parameters in Linear Iterative Learning Control
Authors:   School of Electrical and Electronic Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
Published: May 2022

This article proposes four sufficient conditions to determine the convergence learning parameters in iterative learning control of linear batch processes. These conditions are established in frequency domain with transfer functions of elementary linear learning functions of P-, D-, PD- and PID-Type, instead of their state space models as usual. Hence, they can overcome all conservative difficulties occurred by using conditions created in time domain. To obtain these conditions in frequency domain, first an overall sufficient condition belonging to input-output mapping is created, and then realized it particularly in frequency domain for four different linear learning functions by using their transfer function. The obtained conditions in frequency domain are expressed in algebraic inequality of matrix norm, so they are very convenient in use. To illustrate the applicable ability of proposed conditions in various practical applications some numerical simulations had been carried out in the paper. Obtained simulation results authenticate the advantage of these conditions.
Macrohabitat suitability model for the Trinity bristle snail in the Greater Trinity Basin of northern California
Authors: Sullivan Robert M
Published: May 2022

Analytical methods used to identify species-specific suitability of habitat include statistical habitat distribution models. Habitat type is the most reliable predictor of species occurrence in a particular area. Here, I developed a spatially explicit landscape-level suitability framework using metrics derived from forest, climatic, and topographic criteria for the Trinity bristle snail (Monadenia setosa). I conducted surveys to document locations of Trinity bristle snails and then performed spatial analysis of ecological variables in a geographic information systems (GIS) framework using point density estimators to produce a spatially explicit habitat suitability model; a geographic map reflecting the total area of hypothesized suitable macrohabitat within the known geographic range of the species; and a set of density surfaces showing where point features were concentrated that defined habitat suitability ranging from low to critical. This model provides resource managers with a distributional framework and overlay useful in anticipating where suitable macrohabitat for the species may be found across the landscape and serves as a foundation for updating and expanding population-level surveys and site-specific microhabitat assessments.
Population density and habitat selection in the San Pedro Mártir rainbow trout in mountain streams of northwestern Baja California, Mexico
Authors: Ruiz-Campos Gorgonio , Solís-Mendoza, Mariana , Camarena-Rosales Faustino , Andreu-Soler Asunción , Pister Edwin P , Meza-Matty Iván A
Published: May 2022

We assessed the population density and habitat selection of the southernmost rainbow trout subspecies, Oncorhynchus mykiss nelsoni, in three stream sites of the Sierra San Pedro Mártir, Baja California, Mexico. Habitat units (sections of the streams visually delimited on the basis of morphological and hydrological features) were sampled between February 2014 and April 2017, along a sample length of 2,980 m corresponding to 105 habitat units, which were classified into ten types. Mean population density (individuals/m2) was similar among the streams sampled (0.035–0.039/m2), as also over time for each stream, except for San Rafael Creek. Low gradient riffle was the habitat unit with the highest mean density of trout (0.151/m2). Of overall manner (dates and sites combined), population density was positively correlated to mean total length (TL), number of trout, and pH levels, and inversely correlated to total of dissolved solids. The total length of the trout was different among sample sites with the lowest and highest values in San Antonio de Murillo Creek and La Grulla Creek, respectively. Also, the total length of individuals among types of habitat units was different, with the highest values for MCP (mid-channel pool) and SRN (step run). Dates and sites pooled, the mean total length of individuals was positively correlated to population density, number of trout, habitat unit area, macrophyte cover, and inversely correlated to temperature. Low population densities (0.011–0.106/m2) combined with its small body size (38–216 mm TL) characterize this endemic trout in the southernmost part of species’ geographic range.
Melatonin for the Treatment or Prevention of Delirium
Authors: Khangura Sara D. , McDougall Danielle
Published: May 2022

Variable findings were reported for clinical effectiveness of melatonin for the prevention or treatment of delirium compared with placebo in the literature that met the criteria for this review.

No studies that met the criteria for this review were found on the clinical effectiveness of melatonin for the prevention and/or treatment of delirium versus antipsychotic drugs or cholinergic agents.

There was limited evidence available on the clinical effectiveness of melatonin for the prevention and/or treatment of delirium versus dexmedetomidine.

There were no statistically or clinically significant harms reported from the use of melatonin in the treatment of patients at risk from or experiencing delirium.

Limited guidance was found that provided recommendations for the use of melatonin in the prevention and//or treatment of delirium for hospitalized inpatients.
Des effets didactiques de microphénomènes sémiotiques en mathématiques
Authors: PETITFOUR Édith , HOUDEMENT Catherine
Published: May 2022

Ce chapitre présente des analyses sémiotiques de phénomènes pouvant éclairer certaines difficultés d’enseignement-apprentissage en mathématiques, notamment dans l’enseignement spécialisé. Il s’appuie sur l’étude de deux situations d’enseignement, l’une porte sur la notion d’aire à un élève malvoyant inclus en classe ordinaire, l’autre sur la numération décimale à des élèves d’un Institut Médico-éducatif.
Corps, matière et signes dans la constitution du sens en mathématiques
Authors: RADFORD Luis
Published: May 2022

Ce chapitre s’intéresse à la constitution du sens mathématique dans son rapport avec le corps, la matière et les signes. En se situant dans une perspective dialectique matérialiste, l’article explore des passages clés de l’émergence du symbolisme algébrique à la Renaissance et retrace les changements sémiotiques que sous-tendent l’apprentissage de l’algèbre symbolique à l’école.
ODNOS VEČINSKEGA PREBIVALSTVA DO
PRISELJENSKIH SKUPNOSTI: CELJE IN PRISELJENCI
ALBANSKE NARODNOSTI
Authors: MANDELC Damjan , Gajić Vanja
Published: May 2022

Povzetek. V članku raziskujemo odnos večinskega prebivalstva tretjega največjega slovenskega mesta Celje do albanske priseljenske skupnosti, ki se je v zadnjem obdobju številčno okrepila in med večinskim prebivalstvom generira odklonilni odnos in etnično distanco. Na podlagi teoretskih predpostavk v polju sociologije in migracijskih študij je bil oblikovan raziskovalni načrt z integracijo metod. Analiza rezultatov je pokazala, da ima večinsko prebivalstvo prevladujoče negativen odnos, opazili smo delna ujemanja s predpostavljenimi teoretičnimi izhodišči, pri čemer se je pokazalo, da imajo posameznice z višjo izobrazbo in višjimi dohodki nekoliko bolj naklonjen odnos do priseljencev kot moški respondenti z nižjo izobrazbo in nižjimi prihodki. Ključni pojmi: priseljenci albanske narodnosti, odnos večinskega prebivalstva, albanofobija, Mestna občina Celje
DEBATING THE RELATIONSHIP
BETWEEN ACADEMICS AND PRACTITIONERS IN THE HIGHER
EDUCATION FIELD
Authors: FINK-HAFNER Danica , DAGEN Tamara
Published: May 2022

Abstract. In this article we present findings from focus
groups (FGs) consisting of academics and practitioners in
the higher education (HE) field from different parts of the
world, who debated their perceptions of the current state
of the art in the HE field. The main findings, which call for
further research, as well as activities of academics, practitioners
and policymakers at various levels, are as follows: 1)
there is a gap between basic academic research and applied
research (with the latter often not meeting the appropriate
conceptual level), which needs to be closed; 2) this gap is
expressed also in the global context of the HE field; 3) multidisciplinarity,
interdisciplinarity, transdisciplinarity, methodological
quality of both basic and applied research need
to be developed and 4) scholars’, practitioners’ and governments’
(policymakers’) responsibilities need to be addressed.
Keywords: higher education (HE), research, academics,
practitioners, government, policy
Understanding greenhouse gas (GHG) column concentrations in Munich using WRF
Authors: Zhao Xinxu , Chen Jia , Marschall Julia , Gałkowski Michal , Hachinger Stephan , Dietrich Florian , Shekhar Ankit , Gensheimer Johannes , Wenzel Adrian , Gerbig Christoph
Published: May 2022

Abstract. To address ambitious goals of carbon neutrality set at national and city scales, a number of atmospheric networks have been deployed to monitor greenhouse gas (GHG) concentrations in and around cities. To convert these measurements into estimates of emissions from cities, atmospheric models are used to simulate the transport of various tracer gases and help interpret these measurements. We set up a modelling framework using the Weather Research and Forecasting (WRF) model applied at a high spatial resolution (up to 400 m) to simulate the atmospheric transport of GHGs and interpret the observations provided by the Munich Urban Carbon Column Network (MUCCnet). Building on previous analyses using similar measurements performed within a campaign for the city of Berlin and its surroundings (Zhao et al., 2019), our modelling framework has been improved regarding the initialization of tagged tracers, model settings, and input data. To assess the model performance, we validate the modelled output against two local weather stations and observed column GHG concentrations provided by MUCCnet from 1 to 30 August 2018. The modelled wind matches well with the measurements from the weather stations, with wind speeds slightly overestimated. The measured slant column concentrations of GHGs and their variability are generally reproduced by the model, with a bias in CO2 of around 3.7 ppm that can be attributed to the initial and boundary conditions used. The differential column method (DCM) has been applied to cancel out the influence from the background concentrations of CO2. We optimize its application by selecting suitable days on which the assumption of the DCM holds true: a relatively uniform air mass travels over the city, passing from an upwind site to a downwind site. In particular, the Stochastic Time-Inverted Lagrangian Transport model (STILT) is used here and driven by our WRF modelled meteorological fields to obtain footprints (i.e., the potential areas of influence for signals observed at specific points), further used for interpreting measurement results. Combining these footprints with knowledge of local emission sources, we find evidence of CH4 sources near Munich that are missing or underestimated in the emission inventory used. This demonstrates the potential of this data-model framework to constrain local sources and improve emission inventories.
Seasonal characteristics of atmospheric formaldehyde (HCHO) in a coastal city of southeast China: Formation mechanism and photochemical effects
Authors: Liu Taotao , Lin Yiling , Chen Jinsheng , Chen Gaojie , Yang Chen , Xu Lingling , Li Mengren , Fan Xiaolong , Chen Yanting , Yin Liqian , Chen Yuping , Ji Xiaoting , Lin Ziyi , Zhang Fuwang , Wang Hong , Hong Youwei
Published: May 2022

Abstract. Formaldehyde (HCHO) is a vital reactive carbonyl compound, which plays a critical role in the atmospheric oxidation capacity (AOC), radical chemistry, and O3 formation. Yet, the majority of the current studies on HCHO photochemical mechanism in coastal areas remain scarce, thus limiting the full understanding of potential atmospheric impacts with limited influence from marine sources. Here, field campaigns were conducted at a typical urban site in southeast China to reveal the characteristics and potential source of ambient HCHO, as well as its impact on photochemistry, during spring and autumn of 2021. The result showed that the HCHO mixing ratios were 2.94±1.28 ppbv and 3.19±1.41 ppbv in spring and autumn, respectively. Secondary formation made the largest contributions to HCHO (49 % in spring and 46 % in autumn), followed by vehicle exhaust (25 % and 20 %) and biogenic emission (18 % and 24 %) in this study. Furthermore, in order to identity the impact of HCHO on photochemistry process, the formation pathways and key precursors (alkenes and aromatics) of secondary HCHO were furtherly investigated based on Observation-Based Model (OBM). The net HCHO production rate in autumn (−0.40±0.70 ppbv h−1) was lower than that in spring (0.10±0.37 ppbv h−1), due to the increase in HCHO loss rate under the intense solar radiation and relatively low precursor levels to limited HCHO secondary formation. Disabling HCHO mechanism decreased the abundance of OH (25 % in spring and 16 % in autumn), HO2 (45 %, 40 %), and RO2 (26 %, 19 %). Meanwhile, the net O3 production rates dropped by 32 % in spring and 29 % in autumn, which were mainly dominated by the reduction of radical propagation efficiencies. The analysis of HCHO potential sources, formation pathways, and impacts on O3 formation provided significant insights into photochemical mechanisms and pollution control in coastal areas.
Performance comparison between electrochemical and semiconductors sensors for the monitoring of O3
Authors: Claveau Christophe , Giraudon Mathilde , Coville Benoit , Saussac Arnaud , Eymard Laurence , Turcati Laure , Payan Sebastien
Published: May 2022

Abstract. As part of the Quality of Life and Urban Mobility (MouVIE) Chair, an individual mobile sensor designed as an adaptable and scalable "platform" is being developed within the LATMOS (Atmospheres Space Observations Laboratory). This sensor must contribute to answering problems related to the exposure of individuals to air pollution and their impact on health. In this context, its adaptable and scalable nature will allow the insertion of new consumer measurement components available ("low cost" micro-sensors). In this paper we present a laboratory evaluation of commercially sensors for the monitoring of ozone (O3). Two type of sensors are tested: electrochemical and semiconductors sensors. Theses sensors are tested at different temperatures, humidity and at ppb level. The voltage response and their dependence on ambiant temperature and humidity are evaluated. The time drift effect on electrochemical sensors was also evaluated during 4 months of use.
RELATIVE ADJUSTMENT OF MOBILE LASER SCANNING DATA IN DIFFERENT SCENES
Authors: Altyntsev M. A.
Published: May 2022

Abstract. Adjustment is a final step in the post-processing of mobile laser scanning (MLS) data. This stage improves the accuracy of point cloud and trajectory registration in the global coordinate system. Cutting-edge software bundled with the corresponding survey complex is capable of performing the majority of MLS data registration steps in an automatic mode for territories with a varied type of development. With the sufficient number of vertical or inclined flat surfaces software algorithms ensure high accuracy of relative adjustment that constitutes calculating and applying corrections to MLS data obtained during multiple passes. The accuracy of automated relative adjustment can be significantly reduced when there are almost no flat surfaces. In this case, pole-like infrastructures can be used. The task of detecting pole-like infrastructures is mainly solved with high accuracy in urban scenes. In out-of-town scenes this task is becoming more complicated due to vegetation along roads. A comprehensive technique for MLS data relative adjustment, which is capable of utilizing the information about pole-like infrastructure location where there are not enough flat surfaces is proposed. The technique allows detecting pole-like infrastructure among vegetation. Analysis of accuracy estimation results demonstrated that only minimum manual correction of tie point locations is required.
KINECT BACKPACK FOR RAPID MOBILE INDOOR MAPPING
Authors: Bleier M. , van der Lucht J. , Nüchter A.
Published: May 2022

Abstract. In recent years, 3D surveying using mobile mapping has become increasingly popular. Handheld or backpack mounted systems resulted in new uses and applications because they enable fast data acquisition in areas that are difficult to access. Many of these applications do not require high-precision measurement, but they often involve highly complex environments. In this paper, we present a mobile mapping backpack based on four Microsoft Kinect RGB-D sensors and an Intel T265 tracking camera. The data processing takes place in three steps. Starting with a first trajectory and map created using visual-inertial odometry, which is subsequently optimized by means of a continuous-time ICP. Finally, the trajectory is further improved by a continuous-time SLAM approach. In this work, a data set was recorded and analyzed in a bunker facility with the system carried at a walking speed of approximately 0.7 meters per second. For the evaluation, these data are compared with a reference data set, recorded with a Riegl VZ-400 laser scanner.
CALIBRATION AND VALIDATION OF A STEREO CAMERA SYSTEM AUGMENTED WITH A LONG-WAVE INFRARED MODULE TO MONITOR ULTRASONIC WELDING OF THERMOPLASTICS
Authors: Wischow M. , Dahlke D. , Meißner H. , Ernst I. , Jarka S. , Glück R.
Published: May 2022

Abstract. Ultrasonic welding of thermoplastics has become an important industrial manufacturing process in the fields of aerospace and transportation. High quality standards are demanded and a reliable quality assessment routine is fundamental. Most on-site and off-site approaches are time consuming or require additional active illumination. Especially temperature models have proven to be good indicators for welding quality. We present a methodology to measure the surface temperature in real-time and visualize it simultaneously as a 3D model. Through augmenting a stereo camera system with an additional passive thermal infrared camera, we are able to map the heat data of multiple successive welds of large, free-form structures into a common 3D data representation. A challenging calibration approach is used to derive the inner and exterior orientation for the trifocal camera system. Geometric and radiometric improvements for an aluminium chessboard allow the usage of wide-angle optics for the thermal infrared camera. Consequently, we verify the quality of each camera by means of their resolving power. Therefore, a Siemens star test pattern is used for the thermal camera as well. We demonstrate the effectiveness of our methodology on a robot-guided ultrasonic welding tool.
ESTIMATING TREE CANOPY HEIGHT IN DENSELY FOREST-COVERED MOUNTAINOUS AREAS USING GEDI SPACEBORNE FULL-WAVEFORM DATA
Authors: Liu C. , Wang S.
Published: May 2022

Abstract. Tree canopy height is an important parameter for estimating forest carbon stock, and mountainous areas with dense vegetation cover are the main distribution areas of trees, so it is important to accurately measure the forest canopy height in mountainous areas with high vegetation cover. This paper focuses on the problem of poor inversion accuracy of canopy height estimation in large scale densely forest-covered mountainous areas, uses the complex echoes of GEDI full-waveform spaceborne laser in mountainous forests as the data source, improves the accuracy of forest canopy height estimation from multiple perspectives by improving the detection capability of weak and overlapping waves and constructing a canopy height model considering slope correction and environmental features. The results show that the modified RGD algorithm proposed in this paper can effectively detect the weak and overlapping waves in the echoes and improve the DTM/DSM inversion accuracy significantly (FVC>90%, R2=0.8663/R2=0.8073). In addition, the forest canopy height model is constructed on the basis of the physical geometric model of mountain slope and spatial environment characteristics, and finally the canopy height inversion accuracy of this paper is higher (FVC>90%, R2=0.6729). The experiment proves that the model constructed in this paper is not only applicable to densely forest-covered mountainous areas, but also improves the accuracy of forest canopy height inversion in other environments. This study can provide technical and decision support for forest resource survey and global carbon balance.