bluuebunny/crossref_metadata_2025 huggingface dataset:
A review on the Cahn–Hilliard equation: classical results and recent advances in dynamic boundary conditions
Authors: Wu Hao
Published: May 2022

The Cahn–Hilliard equation is a fundamental model that describes the phase separation process in multi-component mixtures. It has been successfully extended to different contexts in various scientific fields. In this survey article, we briefly review the derivation, structure as well as some analytical issues for the Cahn–Hilliard equation and its variants. Our focus will be placed on the well-posedness as well as long-time behavior of global solutions for the Cahn–Hilliard equation in the classical setting and recent progresses on the dynamic boundary conditions that describe non-trivial boundary effects.
Min-max differential game with partial differential equation
Authors: Youness Ebrahim. A. , Megahed Abd El-Monem. A. , Eladdad Elsayed. E. , Madkour Hanem. F. A.
Published: May 2022

In this paper, we are concerned with a min-max differential game with Cauchy initial value problem (CIVP) as the state trajectory for the differential game, we studied the analytical solution and the approximate solution by using Picard method (PM) of this problem. We obtained the equivalent integral equation to the CIVP. Also, we suggested a method for solving this problem. The existence, uniqueness of the solution and the uniform convergence are discussed for the two methods.
Linear complexity and 2-adic complexity of binary interleaved sequences with optimal autocorrelation magnitude
Authors: Wang Yan , Cao Ying , Heng Ziling , Wang Weiqiong
Published: May 2022

A construction of binary sequences with period $ 4N $ and optimal autocorrelation magnitude has been investigated based on sampling and interleaving technique. We determine the exact value of the linear complexity of the constructed sequences according to the deep relationship among the characteristic polynomials, and show it is $ 2N+2 $. Moreover, we determine the 2-adic complexity of these sequences by the autocorrelation function, and show it can attain the maximum value. Results show that such sequences can resist both the Berlekamp-Massey attack and the Rational Approximation Algorithm, in addition are good for communication.
Ocultando la «simonía». El mercado privado de mercedes de hábito de las órdenes militares en América (1686-1700)
Authors: Giménez Carrillo Domingo Marcos
Published: May 2022

Este trabajo aborda el mercado privado de mercedes de hábito de las órdenes militares castellanas, actividad de carácter ilícita, entre 1686 y 1700. Se centra, de manera más específica, en las enajenadas por esta vía que se destinaron para residentes en América, mostrando los mecanismos utilizados, las vías por las que transitaron y los principales actores involucrados. Esta investigación se sustenta en el análisis del total de las mercedes que fueron otorgadas por Carlos II en dicho periodo.
La diplomacia de los sonidos. Porfirio Díaz, Thomas Edison y el fonógrafo mejorado (México-Estados Unidos, 1888-1890)
Authors: Díaz Frene Jaddiel
Published: May 2022

En este artículo intento reconstruir las relaciones entre Porfirio Díaz Mori y Thomas Alva Edison, teniendo como eje central los usos y representaciones de los fonógrafos. Los vínculos entre ambos personajes abren una puerta privilegiada para acceder a una historia de la diplomacia, los usos de las tecnologías sonoras y las redes de negocios entre México y Estados Unidos. Mediante cartas, noticias periodísticas y contratos recorro diversos episodios de esta relación, que incluyó el envío de máquinas parlantes y música norteamericana, la entrega de concesiones y la firma de convenios para que el servicio de correos mexicano se llevara a cabo en cilindros fonográficos.
Influence of Teacher-Student Interaction on Course Learning Effect in Distance Education
Authors: Zhang Yanzhu
Published: May 2022

Comprehensive integration of 5G, artificial intelligence and other technologies into education has fully demonstrated openness and flexibility of distance education, which attracts a large number of learners to study. Good teacher-student interaction in distance teaching plays a significant role in improving the quality of course teaching and teachers’ career development. Based on the Classroom Assessment Scoring System (CLASS) questionnaire, the influence of emotional support, classroom organization and teaching support of teacher-student interaction on course teaching effect in distance education was analyzed, the difference of learning effect of whether students like distance education were analyzed. Results show that the reliability coefficient of the questionnaire is 0.938, and the KMO value is 0.892. The reliability and validity of the questionnaire are very good. Two aspects of teacher-student interaction (classroom organization and teaching support) can improve the learning effect. Whether samples like distance education have a significant effect on learning effect (p<0.05). The learning effect of learners who like distance education is significantly higher than those who do not. Conclusions have important reference value in clarifying the main types and contents of teacher-student interaction, improving students’ subjective feeling ability of curriculum education, promoting learners’ active participation in classroom teaching activities, and maintaining smooth interaction with teachers.
Learning Satisfaction of Learners and Curriculum Design under Different Online Teaching Platforms
Authors: He Yuanyuan , Fu Xin
Published: May 2022

Learner-centered online education philosophy has been applied extensively and online learning is appreciated by more people. With good interaction, enjoyments and simulation, online learning increases learning experiences and harvests of learners. However, since more online learning platforms focus on education technological development and ignore firsthand experiences of learners, they pay few attentions to learning satisfaction of learners. In this study, the influences of four curriculum design aspects of online teaching on learning satisfaction of learners were investigated by a questionnaire survey to students. Moreover, differences in learning satisfaction of learners caused by different online teaching platforms were analyzed. Results demonstrate that content design and activity design of online teaching can improve learning satisfaction of learners effectively, while object design and evaluation design fail to improve learning satisfaction of learners effectively. Samples used in different platforms have significant influences on learning satisfaction. Samples of different majors all show significant influences on learning satisfaction. Conclusions can provide important references on how to improve curriculum design quality of online teaching and increase the online teaching design ability and technological application ability of teachers to make university students become individual learning subjects and improve their online learning satisfaction.
Clustering Review in Vehicular Ad hoc Networks: Algorithms, Comparisons, Challenges and Solutions
Authors: Jabbar Mays Kareem , Trabelsi Hafedh
Published: May 2022

The Vehicular Ad-hoc Network (VANET) represents a new future for dynamic information dissemination between societies. VANET has a wide range of applications in a variety of aspects, including Intelligent Transportation Systems (ITS). VANET has some characteristics, like highly dynamic topology and intermittent connections. These characteristics lead to untrustworthy information transmission in VANET. Vehicle clustering is an efficient approach to improve the scalability of the network and connection reliability. The performance of the clustering is also affected by VANET characteristics. This article provides a comprehensive description of VANET clustering algorithms. The most notable clustering algorithms introduced between 1999 and 2021 are reviewed. A complete survey on clustering in VANETs is provided based upon the clustering process. The clustering process in most algorithms is explored in the aspects of CH selection metrics, cluster formation, and cluster maintenance. The clustering techniques based on some parameters like stability, convergence, overhead, and latency are compared. Some of the most common problems, as well as the approaches employed to solve them, are also discussed. Also, the performance parameters which evaluate the clustering approaches are summarized.
Design and Implementation of Hybrid Medium DP-DQPSK DWDM ROF Transmission System for Different Weather Conditions
Authors: Ehsan Esra , Ngah Razali , Binti Daud Nurul Ashikin
Published: May 2022

This document Designing system with Free-space optical (FSO) communication can supply high-speed digital data linkages to rural regions where geography, setup costs, and groundwork safety are major obstacles. Transmission impairments and space loss could be considered major challenges for handling the FSO system. This work has been designed and analyzed a system based on the combination of Dual Polarization Differential Quadrature Phase Shift Keying (DP-DQPSK) and Dense Wavelength Division Multiplexing (DWDM) using the Direct Detection (DD) technique. The proposed system has been utilized with a hybrid transmission medium of Single-Mode Fiber (SMF) with a fixed length of 60 km and FSO with varied lengths of (5, 7, and 9) km. The system was designed with Optisystem software 18 and consist of 64 channels and 14 Gbps of data rate per channel to make the system 5G communication compatible, 3.5 GHz RF electrical signals have been used to modulate the optical carrier. The channels 1,6,12, …,64 were selected as samples among all channels to be investigated and analyzed along with four different atmospheric weather conditions. Additionally, the proposed system is designed to investigate based on different weather attenuation that affected the parameters of Quality Factor (QF) and Bit Error Rate (BER). The significant advantage of the proposed system by using the DD technique, is no reference wave required. Hence, make the system become less complex and possible to be implemented and tested via different weather conditions. Results obtained indicate reverse relation between the QF and both the FSO distance and attenuation. While, BER based parameters showed a direct relation. For light air and haze, the results showed that the system have higher reliability for all the three investigated FSO distances.  For the medium haze, the system has shown capability to transfer as far as 7 km. And for the rain condition, the system capability was set to 5 km.
CUSTOMER EMPOWERMENT: MANAGERIAL PRACTICE TO INVOLVE THE CUSTOMER AND EXPLOIT HIS KNOWLEDGE IN ORDER TO IMPROVE HIS SATISFACTION - DJEZZY COMPANY CASE-
Authors: El Beirouti Abderrahmane , Mouterfi Amel
Published: May 2022

Today, companies have changed their strategies in management and marketing because of new phenomena such as: ICT, deregulation, focus on service, mega-alliances and new roles of consumers, these phenomena have led companies to adopt a global and collaborative relational approach.Keeping customers, ensuring loyalty and satisfying them have become a major challenge for companies. To get closer to the customer, associate him and win these challenges; customer empowerment emerged as a new practice to involve him in the business and exploit his knowledge to gain a competitive advantage.This research proposes a conceptual framework of customer empowerment, this emerging managerial practice aims to demonstrate the role of customer involvement through this managerial approach can improve his satisfaction.After having proposed the conceptual framework of the key concepts of this study; the mobilized method to demonstrate this central object is as follow: the study of an existing case within the Algerian company under projection, with a qualitative approach by choosing interview and oriented survey within the department of Commerce. This study concluded that the customer empowerment is essential in a hyper competitive context to be closer to the customer, to know his needs, to exploit his skills in order to surpass the pinnacle of the temporal satisfaction.
LA DEMANDE D’ÉNERGIE ÉLECTRIQUE DES MÉNAGES AU BENIN
Authors: Dedjinou Serge. V.F
Published: May 2022

Cet article analyse les déterminants de la demande d’énergie électrique des ménages dans un contexte de rationnement de l’offre, en raison de la faible capacité de production d’énergie électrique au Bénin. Pour identifier les déterminants de la demande d’énergie électrique des ménages, nous avons estimé un modèle de demande conditionnelle par la méthode de sélection de Heckman (1979) appliquée aux données issues de l’Enquête sur la Consommation d’Electricité des Ménages au Bénin. Sous les hypothèses de la défaillance du système d’approvisionnement et d l’absence d’informations en temps réel sur les prix pratiqués par l’opérateur du réseau, cette étude révèle que les dépenses de raccordement au réseau, le revenu et le milieu de résidence sont les principaux déterminants significatifs de la demande d’accès au réseau de distribution alors que les dépenses de consommation, le revenu du ménage et la revente d’électricité sont les principaux déterminants significatifs de la demande d’usage d’énergie électrique des ménages au Bénin.
Pengaruh Media Sosial, Pembelajaran Daring, dan Kecerdasan Emosional Terhadap Etika dan Perilaku Taruna Pelayaran
Authors: Djari Janny Adriani , Heriyawan Mohammad Sapta
Published: May 2022

Technology in the digitalization era and the Covid-19 pandemic has changed systems and patterns of life, including character education for cadets. Digital era has brought various good changes as a positive impact that can be used as well as possible. But at the same time, digital era also brings many negative impacts, so that it becomes a new challenge in human life in this digital era, especially for the Level I cadets of the PIP Semarang. The purpose of this study was to analyze the effect of the digitalization era as proxied as social media, online learning and emotional intelligence on the ethics and behavior of Level I cadets of PIP Semarang. The method used in this research is quantitative. The population in this study was 412 cadets, while the sample was 274 cadets. Data analysis used multiple linear regression. The  F test in this study indicate that social media, online learning and emotional intelligence together affect the ethics and behavior of the Level I cadets of PIP Semarang. Based on this research, it can be concluded that the digitalization era has an effect on the ethics and behavior of Level 1 cadets at PIP Semarang.
Mobbing de los jefes inmediatos y estrés percibido por el personal de enfermería en un hospital público de Huánuco, Perú
Authors: Dionicio Acosta Carmen Flor
Published: May 2022

Objetivo. Determinar la correlación del mobbing de los jefes inmediatos y el estrés del personal de enfermería del Centro Quirúrgico y Servicio de Neonatología del Hospital de Contingencia Hermilio Valdizán Medrano, Huánuco, 2019. Métodos. La investigación tuvo enfoque cuantitativo y fue de tipo observacional, analítico y trasversal. Los instrumentos de recolección de datos fueron el cuestionario de Heinz Leymann y el test de índice de reactividad al estrés (IRE) de González de Rivera, previa validación de fiabilidad. En el análisis inferencial se aplicó la prueba Rho de Spearman. Además, se tuvieron en consideración los aspectos éticos. Resultados. El 82,5 % (52) de la muestra evidenció mobbing por sus respectivos jefes de nivel leve; el 74,6 % (47) tuvieron un bajo nivel de estrés. Al analizar la correlación entre las variables, mobbing de los jefes inmediatos y el estrés del personal de enfermería, se halló una correlación moderada [(Rho = 0,608), (p = 0,000)]. Conclusiones. Existe correlación entre el mobbing de los jefes inmediatos y el estrés del personal de enfermería en estudio.
Decarbonizing China’s Road Transport Sector: Strategies toward Carbon Neutrality
Authors: Xue Lulu , Liu Daizong
Published: May 2022

China’s road transport sector plays an important role in meeting carbon early peaking and carbon neutrality goals. This study examines how the sector might be decarbonized by modelling five scenarios using the LEAP model. This study aims to inform China road transport sector’s emission reduction target, identification of cost-effective measures that deliver on the sectoral emission reduction targets, facilitate low-carbon investments, and identification of decarbonization measures with air pollution reduction co-benefits.
On Cryptocurrencies: An Assessment of Bitcoin’s Prospect As Legal Medium of Exchange
Authors: Uddin Kazi Md. Nasir
Published: May 2022

Abstract

Digital currency has gained importance in recent times. But definitional issue made this currency ambiguous to society and financial institutes. Digital currencies are used in real-world transaction as well as in the dark web. Digital currency comes into discussion with the creation of bitcoin - an online payment method with no intermediary or financial institute. This online payment system has a strong security system. Consequently, bitcoin account holders has been increasing considerably. We can use bitcoins legally besides other legal tenders, if existing laws do not consider these coins immoral. Also, in the midst of the ongoing global pandemic (Novel Coronavirus or Covid-19), a paperless currency like bitcoin, which also involves contactless transaction, would go a long way in preserving wellbeing for individual and economy alike. Furthermore, we can try to find out and address the problems related to this currency. After proper assessment, if we acknowledge bitcoin, they can compete with the existing coins in the present currency system, complying with government rules, and contribute to the development of the currency system. They can also work as service providers or economic agents of virtual coins, and participate in the country’s economic activities through the exchange of the coins.

JEL Classification: E42, G18, O38.
Keywords: Cryptocurrencies, Bitcoin, Digital currencies, Virtual currencies, Cryptography, Fiat currency, Covid-19.
ON THE OCCURRENCE OF Scorpiops longimanus (POCOCK, 1893) (ARACHNIDA: SCORPIOPIDAE) IN MIZORAM, NORTHEAST INDIA
Authors: Malsawmdawngliana Fanai , Vabeiryureilai Mathipi , Siammawii Vanlal , Muansanga Lal , Hmar Gospel Zothanmawia , Decemson Ht , Lalremsanga Hmar Tlawmte
Published: May 2022

In this study, we confirm the occurrence of the tropical forest scorpion Scorpiops longimanus (Pocock, 1893) in Mizoram, India based on specimens collected from 13 different localities within the state. The total length of the animal was found to range from 42.22 mm up to 65.16 mm. The number of trichobothria on the ventral surface of the pedipalp patella and that of the external face alternates between 10–11 and 18–19, respectively. The pectines showed dissimilarities in the structure of the lamellae and in the number of teeth. We generated the first molecular data for the species and performed a maximum likelihood phylogenetic analysis using the partial mitochondrial 16S rRNA gene which showed the formation of a distinct clade of S. longimanus. The uncorrected k2p distance showed an intraspecific genetic variation of 2.9% among the species studies.
FIRST CONFIRMED DISTRIBUTION RECORDS OF Dendrelaphis bifrenalis (BOULENGER, 1890) (REPTILIA: COLUBRIDAE) IN INDIA, WITH A REVISED KEY TO THE SOUTHERN INDIAN FORMS
Authors: Aengals R. , Ganesh S.R. , Sethy P.G.S. , Kirubakaran J. Samson , Jerith M. Ahamed , Satheeshkumar M. , Thanigaivel A. , Vogel Gernot
Published: May 2022

We report for the first time an accurate record of Dendrelaphis bifrenalis (Boulenger, 1890), a colubrid snake thus far considered endemic to Sri Lanka, from southern India. Our data is based on a voucher specimen collected from Shenbagathoppu, Srivilliputhur, Tamil Nadu, India. We also refer a paratype of D. girii from Sirumalai and a voucher specimen previously identified as D. girii from Meghamalai (both from Tamil Nadu, India) to D. bifrenalis. Additionally, based on congruence of diagnostic features, observed but uncollected specimens reported from the Eastern Ghats in Jawadi, Bilgiri and the Tada (or Kambakkam) hills are herein referred to D. bifrenalis. The Indian records of D. bifrenalis available thus far indicate its occurrence in mixed deciduous forests of mid-hills. Our examination of the historical (in 1890s) specimen that formed the sole basis of the record of D. bifrenalis in India, from “Trevandrum, Travancore” in the wet zone of the Western Ghats reveals that it is in fact D. girii. We conclude by drawing parallels in distribution patterns between the Western Ghats-endemic D. girii and the corresponding Sri Lankan wet zone endemic species D. wickrorum, whose description enabled a proper identification of the Sri Lankan and Indian dry zone populations as D. bifrenalis.
Hersilia sp. feeding on Scolopendra sp.
Authors: Gazdar R. , Joshi P. , Shinde A. , Kulkarni V.
Published: May 2022

Spiders are efficient hunters that prey on a variety of invertebrates and vertebrates. They rely on strategies varying from the use of toughened silk to venom. The genus Hersilia Audouin 1826 is called two-tailed spiders due to its characteristic long spinnerets. It is distributed across the Afrotropical, Oriental and Australasian realms. Currently there are five species known to occur in India: Hersilia savignyi Lucas 1836, H. sumatrana Thorell 1890, H. tibialis Baehr & Baehr 1993, H. orvakalensis Javed, Foord & Tampal 2010, and H. longivulva Sen, Saha & Raychaudhuri 2010.
Rediscovery of Anisogomphus ceylonicus (Odonata: Gomphidae) based on its larva
Authors: Sumanapala A.P. , Ranasinghe T. , Sumanapala D.
Published: May 2022

Anisogomphus ceylonicus (Hagen in Selys, 1878) is one of the rarest of the Sri Lankan Odonata. It was first discovered from Ramboda over 140 years ago based on a female specimen, which was originally described as Gomphus ceylonicus and later assigned to the genus Heliogomphus by F. C. Fraser. Almost a century later, Lieftinck (1971) collected an immature male and its exuvia of a clubtail dragonfly from Rambukpath Oya, 10 miles northwest of Hatton in 1962 and described as Anisogomphus solitaris. However, Bedjanič & van der Poorten (2013) recognized that H. ceylonicus is conspecific with A. solitaris, and thus reassigned it to the genus Anisogomphus. Since the discovery of the species, only these two records have ever been documented, despite odonatological surveys and numerous biodiversity explorations conducted on the island.
Two non-native cichlid fish species from the natural waters of Chennai, India
Authors: Aravind G. , Knight J.D.M.
Published: May 2022

Non-native fish are introduced throughout the world mainly for improving fisheries, sport, ornamental fish trade and bio-control of mosquitos. The aquarium trade has not come under the scanner of environmentalists, conservationists, ecologists, and policy makers as much as trade in terrestrial endangered species. The avenues from captivity to the wild include the dumping of unwanted fishes, escape from tanks and breeding farms perhaps during storms, and unchecked drainage of water containing organisms from tanks, and public aquaria. Such organisms are usually healthy adults, which have a greater probability of surviving and reproducing in the wild. Introduced aquarium fish represent a major source of ecological destruction that may be locally alarming if ignored.
RADON-222 CONCENTRATION IN AIR: A CASE STUDY OF AYEDUASE TOWNSHIP, KUMASI, GHANA
Authors: Addison E C D K , Kukubor S , Wemegah D D , Quaye A N M
Published: May 2022

Objective: Radon levels in structures (interior environment) were measured in many dwellings and hostels in Ayeduase Township, Ashanti Region, Ghana. The purpose of this study was to quantify radon toxicity in the Ayeduase community, which houses approximately half of the students at Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, and to determine the risk levels for individuals (categorized as infants, children, and adults) living in the community's various suburbs.

Materials and Methods: Households in Ayeduase had an average of four people per room. The radon in air concentration was measured with a continuous radon monitor using continuous active sampling approach. Multiple measurements were taken at tight space-time intervals over a period of 24 hours. The Continuous Radon Monitor was installed in dwelling rooms in zones where the monitor could record fresh air entering the room. The yearly effective dose was computed using the Mondal 3 Software.

Results: The continuous sample air radon concentration in Ayeduase Township was found to be in the range of 8.510 0.05607 Bq/m3 to 11.100 0.6379 Bq/m3. The manually computed effective annual dose rate for indoor air radon was 0.3494 mSv/year to 0.4558 mSv/year for babies, 0.0683 mSv/year to 0.0891 mSv/year for children, and 0.0559 mSv/year to 0.0729 mSv/year for adults. The comparative results from the Mondal 3 Software showed that the effective annual dose rate for indoor air ranged from 0.32 mSv/year to 0.37 mSv/year, with an average of 0.36 mSv/year for infants, 0.11 mSv/year to 0.14 mSv/year, with an average of 0.12 mSv/year for children, and 0.084 mSv/year to 0.097 mSv/year, with an average of 0.94 mSv/year for adults.

Conclusion: Ayeduase's radon toxicity profile in terms of air showed distinct features. The maximum value of indoor air radon concentration level determined was lower than the global average value of 40 Bq/m3 of indoor radon concentration level and also lower than the reference level of 100 Bq/m3. In Ayeduase, the estimated average effective dosage over a year for babies, children, and adults were lower than the 1.2 mSv/year indicated by ICRP Publication 126.

Recommendation: Radon toxicity due to water and soil sources are required to access the total toxicity levels in the township. Reliable evaluation of the potential for human exposure to radon depends in part on the reliability of supporting analytical data from environmental samples and biological specimens is highly recommended, as well as, concentrations of radon in unpolluted atmospheres and in pristine surface waters are typically within the limits of current analytical methods.
IFRS IN THE SYSTEM OF CORPORATE GOVERNANCE IN UZBEKISTAN
Authors: Azamov Muxammadyusuf , Kasimova Naima
Published: May 2022

This article discusses corporate governance and International Financial Reporting Standards as interrelated systems. The exploration of the principles of regulation of economic relations by these two systems made it possible to identify and prove this relationship, which has a positive effect on the practice of corporate governance and international accounting on the activities of joint-stock companies.
COMPLEX TREATMENT OF COMPUTER VISUAL SYNDROME IN SCHOOLCHILDREN
Authors: Kaharova D. , Khoshimova D. , Madaminxo‘jayeva D.
Published: May 2022

General computerization of recent years has brought new challenges. One of them is computer visual syndrome (GLC).
Effectiveness of Cognitive Edi cation Programme on Knowledge and Reported Practice of Early Ambulation among Nursing Students in a Selected Nursing Institute
Authors: Sujatha R  , Alva Jeevitha
Published: May 2022

Early ambulation has a vital role in post-operative management. It helps the patient relieve pain, improve healing process and strengthen the muscles; it also improves the patient’s self-esteem and the feeling of independence. The practice of early ambulation in post-operative patients depends on the awareness of the nursing students and staff. In this study to nd the effectiveness of early ambulation cognitive edi cation programme, true experimental research pre-test and post-test control group design was used. The sample consisted of 99 rst-year nursing students, selected by simple random sampling. Data were collected by administering a structured knowledge questionnaire and reported practice checklist on early ambulation. The pre-test was done to control and experimental group, after 7 days post-test was done to control group with the same tool, cognitive edi cation programme was given to the experimental group, and on 7th day post-test was conducted to experimental group with the same tool. The collected data were analysed using descriptive and inferential statistics (‘t’ test). The mean difference in the level of knowledge among nursing students before and after the cognitive edi cation programme on early ambulation in experimental group was 1.816. It is evident that the calculated t value was more than the table value in the experimental group and the p value is < 0.001. Hence there is a difference in the level of knowledge among nursing students before and after the cognitive edi - cation programme. The mean difference in the reported practice among nursing students before and after the cognitive edi cation programme on early ambulation in experimental group was 2.898. It is evident that the calculated t value was more than the table value in the experimental group (p < 0.001). Hence there is a difference in the reported practice among nursing students before and after the cognitive edi cation programme. Majority of the nursing students had poor knowledge of early ambulation before the cognitive edi cation programme. The post-test knowledge and reported practice score of the experimental group showed a signi cant increase in the knowledge and reported practice of nursing students. Hence the cognitive edi cation programme is an effective strategy for providing knowledge and practice.
Does Type-D Personality Impact Risk of Adverse Behavioural Changes in Patients with Intracranial Tumours?
Authors: Dhandapani Manju , Gupta Sandhya , Mohanty Manju , Gupta Sunil Kumar , Dhandapani Sivashanmugam
Published: May 2022

In this study, conducted to assess the in uence of the type-D personality of patients with intracranial tumours on their behavioural changes, a prospective design was undertaken. Patients were enrolled before surgery or any de nitive treatment (pre-treatment) and were followed up for behavioural symptoms at one month and six months after surgery. Using purposive sampling, 150 patients who were treated and followed up in Neurosurgery outpatient department at a tertiary care centre of North India, DS14 questionnaire and Neuropsychiatric inventory were used to measure type-D personality and behavioural symptoms. The type-D personality of the patients was assessed before surgery or initiating any de nitive treatment (pre-treatment), and behavioural symptoms were assessed at pre-treatment, and at one month and six months after surgery or any de nitive treatment. Patients of intracranial tumours with and without type-D personality were comparable regarding demographic and clinical variables. The patients with type-D personality had a signi cantly higher number and severity of behavioural symptoms at rst assessment before treatment, rst follow-up at one month and second follow-up at six months. It was concluded that Type-D personality may adversely affect the behaviour of patients with intracranial tumours. Nurses must incorporate appropriate behavioural interventions to the patients of the intracranial tumour with a type-D personality to overcome their behavioural changes and associated burden.
' Lived Experience' of Pregnancy as reported by Primigravida Mothers during 3rd Trimester of Pregnancy and On-Hand Help to Mothers Coping with Pregnancy in Nainital
Authors: Rawat Varsha , Prakash Nagendra , Soyam Dayabati , Parashar Anil K
Published: May 2022

This study aimed to explore the ‘Lived experience’ of primigravida mothers during 3rd trimester of pregnancy, to identify the health status of primigravida mothers and foetus and to provide on-hand health instruction to primigravida mothers based on identi ed needs for improving physical health, health of foetus, improvement in nutrition pattern and day-to-day activity modi cation in selected block of Haldwani, Nainital, (Uttarakhand). Qualitative perspective, phenomenological research design was used and data collected from 30 mothers through structured interview schedule for personal pro le, health assessment for mothers and foetus and unstructured interview and analysed. The experiences of the primigravida mothers were described under various major categories such as Self and Pregnancy, Changes in Activities during Pregnancy, Foetus and Self, Coping related to Pregnancy, Support System during Pregnancy, Self and Outcome of Pregnancy. The on-hand health instruction was rendered to all the mothers whenever they reported physical problems. Women require help from family members during pregnancy to cope with physical and emotional changes. The entire study was cost effective, simple and carried out in an acceptable way to explore the ‘Lived experiences’ of primigravida mothers during 3rd trimester of pregnancy.
Level of Stress among Mothers of Children Admitted in Paediatric Intensive Care Unit of Indira Gandhi Medical College and Hospital, Shimla (Himachal Pradesh)
Authors: Verma Kavita
Published: May 2022

The paediatric intensive care unit (PICU) is a multi-disciplinary unit that provides care for infants, children and adolescents who become critically ill or injured. Admission of a child to the Paediatric intensive care unit is a stressful situation for the mothers who are accompanying the min PICU. It is very dif cult to explain the devastating stress experienced by mothers. The aim of the study was to assess was the level of stress and its association with selected demographic variables. The study adopted a descriptive research design and was conducted in PICU of IGMC & Hospital, Shimla. A total of 32 (total enumeration) mothers were selected. A semi-structured interview schedule and perceived stress scales were used for data collection. Data analysis was done by using the descriptive, and inferential statistics. The study results revealed that 6 (18.8%) of mothers had high and 26 (81.3%) had severe level of stress. The type of family, family budget altered due to the illness of child that were found to have a strong association at 0.05 level of signi cance. To conclude mothers are highly stressed due to the child’s admission in PICU. So there is emphasis on the use of coping strategies, grievance and counselling cells in the hospital.
Development of a Clinical Evaluation Tool (CET) for Evaluating Practical skills of Baccalaureate Nursing students: A Methodological Study
Authors: Bhagat Anu , Saini Prabhjot , Sharma Monika
Published: May 2022

Clinical evaluation involves observing performance and judging student’s competence in clinical settings. Clinical evaluation is the dif cult task and a challenge for nursing professionals. Studies related to development of clinical evaluation tool are very limited. Therefore, to evaluate practicum skills of nursing students, the present study was undertaken to develop clinical evaluation tool (CET). It was a methodological study involving Delphi technique in 3 phases; 11 panellists were selected from the eld of Nursing Administration. From the pool of items, a preliminary draft of CET was prepared. The draft was given to panellists to evaluate content and face validity in 3 Delphi rounds. The content validity ratio (CVR) of items in preliminary draft was calculated. The mean I-CVI score of CET after Delphi rounds were increased from 0.89 to 1, S-CVI/Avg increased from 0.9 to 1, and S-CVI /UA was improved from 0.77 to 1. Reliability was calculated by inter rater method (r=0.82) and by Cronbach’s alpha (r=0.93). Usability of CET was checked by taking opinion of ve observers on the basis an opinionnaire. The ndings reveal that CET is very effective in evaluating the clinical skills of baccalaureate nursing students during their practicum.
Assessing the Effect of Patterned Breathing Techniques for Reducing Pain during Active Stage of Labour among Pregnant Women in Tertiary Care Hospital, Bhubaneswar
Authors: Bal Karishma , Rath Kalyani , Baxla Pramila
Published: May 2022

A study was undertaken to evaluate the effect of patterned breathing techniques in reducing pain during active stage of labour among pregnant women in tertiary care hospital, Bhubaneswar (Odisha). The conceptual framework adopted for this study was based on JW Kenny Open System Model. A randomised control trial design was used and consecutive sampling technique was used to select 50 pregnant mothers. Patterned breathing exercises were taught and practised individually to the mothers of experimental group during latent stage of labour and the mothers with 4 cm cervical dilatation were made to practice breathing exercise at each contraction for 1 hour. Pain intensity level was assessed in ve subsequent observations at an interval of 1 hour both in experimental and control group using modi ed numeric pain intensity scale. Five post-tests scores after intervention were recorded using numeric pain intensity scale for assessing pain level after pre-test during the contraction. Findings revealed that in experimental group 80 percent people experienced mild pain and 20 percent experienced moderate pain. As p value was<0.005, so there was signi cant difference between the mean scores of two groups. Thus, patterned breathing techniques have signi cant effect in reducing of labour pain during active stage of labour. But demographic variables do not have signi cant association with the level of pain with patterned breathing exercises.
Postpartum Depression and its Risk Factors among Indian Women
Authors: Murry L Levis , Surbala Devi Yumnam , Joshi Poonam , Dabas Suman , Kumari Vanita , Jitenkumar Singh Khangembam
Published: May 2022

Postpartum depression (PPD) is a mood disorder that can affect women after childbirth. The ill effects of PPD include maladaptive mother-infant interactions, negative effect on cognitive and behavioural development of infants. There are wide variations in reported prevalence of PPD ranging from 0.5 percent to 60 percent among various countries as estimated by the Edinburgh Postnatal Depression Scale (EPDS). PPD screening is not a routine part of postpartum care in India and postpartum women suffering from PPD may remain largely unrecognized and untreated. The study aimed to assess the prevalence of depression and its risk factors in postpartum women attending well-baby clinic at 6 weeks postpartum at a tertiary hospital in India. A total of 284 women who came for immunisation of their babies in well baby clinic at 6 to 8 weeks postpartum were assessed for PPD using the EPDS, after taking consent. Ethical approval was taken from the ethics committee of the organisation. Demographic pro le was collected and women were assessed for risk factors of PPD using a self-developed performa. The point prevalence of PPD was 21.5 percent with a cut off EPDS score of 12 (mean=7.67±5.94). Presence of congenital malformation or neonatal morbidity, problems related to feeding, sleep, satisfaction with marital relationship, violence in the family, relationship with mother-in-law, and presence of stressor in the family were signi cantly associated with PPD. The study brings out the importance of screening for PPD at accessible points like well-baby clinic. Maternal health programmes need to address the mental wellbeing of postpartum women
“Al principio me dio pánico, mucho pánico”: Enfermería, trabajo y emociones en el marco de la pandemia de Covid-19
Authors: Garazi Débora , Blanco Rodríguez Guadalupe
Published: May 2022

El presente artículo se inscribe dentro de una tradición interdisciplinaria de estudios sobre el trabajo que combina la sociología, la historia del trabajo y los estudios feministas y con perspectiva de género. Analiza la dimensión emocional del trabajo realizado por las enfermeras en el marco de la pandemia de Covid-19 así como sus transformaciones. Partimos de los conceptos clásicos de emotional work y emotional labor acuñados por la socióloga Arlie Hochschild y los tensionamos a partir de las experiencias de trabajo abordadas. El análisis está basado en 17 entrevistas en profundidad realizadas a 2 enfermeros y 15 enfermeras con distintas trayectorias en el sector sanitario de la ciudad de Mar del Plata.
https://omjournal.org/articleDetails.aspx?coType=1&aId=3254
Authors: Al Aamri Zakariya , Zadjali Fahad , Al-Riyami Nafila , Al Lawati Feryal , Al Dowaiki Samata , Al Kindi Manal
Published: May 2022

Objectives: To identify the biochemical, hematological, and immune biomarkers in COVID-19 patients on admission that are predictive of eventual admission to the intensive care unit (ICU). Methods: This retrospective cohort study was conducted on all confirmed COVID-19 cases hospitalized at Royal Hospital, Oman from 24 February to 30 July 2020. The demographic, clinical, and laboratory data were collected from the hospital information system. Patients were divided into two groups: non-ICU admitted group and ICU admitted group. Results: Out of 445 patients, 276 (62.0%) were male and 169 (38.0%) were female; 259 (58.2%) patients were admitted to COVID-19 general wards whereas 186 (41.8%) were admitted to ICU. Admission to ICU was more likely when patient had the following comorbidities: diabetes (OR = 1.8; 95% CI: 1.3–2.7), liver diseases (OR = 2.1; 95% CI: 1.1–4.3), and respiratory diseases (OR = 2.0; 95% CI: 1.1–3.7). Between ICU and non-ICU patients, there were significant differences in on-admission laboratory blood/serum parameters: total white blood cells (WBCs) count, lymphocytes count, C-reactive protein (CRP), ferritin, corrected calcium, interleukin 6 (IL-6), D-dimer, alanine transaminase (ALT), lactate dehydrogenase (LDH), albumin, and troponin. Conclusions: The current study identified the presence of the comorbidities (i.e., diabetes, liver diseases, and respiratory diseases) and on-admission laboratory blood and serum test results (i.e., WBC, lymphocytes, CRP, ferritin, corrected calcium, IL-6, D-dimer, ALT, LDH, albumin, and troponin) that are associated with ICU admission.
Electrochemical Corrosion Behavior of Explosively Welded Ti/Type 304L Stainless Steel in Nitric Acid
Authors: Mahanti Ghosal Amrita , Chandra Kamlesh , Kain Vivekanand
Published: May 2022

Two metallurgically incompatible materials, titanium grade 2 and Type 304L stainless steel (SS), were joined through explosive welding for applications in nitric acid service. The morphology and microstructure of the bonded interface were examined using a scanning electron microscope (SEM) and an optical microscope. Typical wavy interfaces along with solidified melted zones at wave vortexes were observed. Various intermetallic phases, having high hardness, were shown to be formed in these solidified melted zones. Elemental distribution in these intermetallic phases was established using SEM coupled with energy dispersive spectroscopy (EDS). Low corrosion rates were observed after exposure of the weld specimens in boiling 14.5 M and 4 M HNO3 solutions. In addition, potentiodynamic polarization tests in 4 M HNO3 solution have been performed at different surfaces at the plane of the welded interface by successive material removal by grinding from 304L SS through weld to titanium. Despite the presence of different intermetallic phases at the test surfaces, it was found that the current densities in the passive regime of potentials were low. The morphological examination of the tested surfaces revealed that corrosion attack was mainly along the boundaries between SS/intermetallic phases, Ti/SS, and along the pre-existing cracks in the intermetallic phases. No corrosion attack was observed along the boundaries between Ti and intermetallic phases.
A IMPORTÃNCIA DO CONTROLE SANITÁRIO E A QUALIDADE DA ÁGUA DOS ANIMAIS EM CATIVEIRO
Authors: BUITVIDAS CAMILA
Published: May 2022

Introdução: A água é um importante veículo de transmissão de doenças, presente em todos os ecossistemas. Ao contrário de quando se encontra na natureza, quando em contato com animais de hábitos aquáticos ou semi-aquáticos esta precisa ser tratada, substituída e descartada. Em casos em que não há o manejo sanitário correto, os ambientes podem ter presença de bactérias com importância clínica (Arcobacter spp, Campylobacter spp., Escherichia coli), principalmente porque alguns animais são reservatórios de tais bactérias. Sendo assim, é necessário realizar o controle e diagnóstico microbiológico da água. Objetivo: realizar uma revisão de literatura sobre o risco de contaminação da água utilizada em ambientes de animais com hábitos aquáticos, e o destino dela. Pontuar o tratamento de dejetos, verificar a presença de bactérias de importância para a saúde pública e se representa algum risco para a população. Material e Métodos: Os materiais utilizados como referências bibliográficas e metodologia, foram livros e artigos científicos. Resultados: A introdução de doenças, tanto para os animais de zoológico como para os tratadores, precisa ser uma preocupação constante do médico veterinário que trabalha no local, porque é onde animais selvagens de diferentes regiões encontram-se confinados em uma área relativamente pequena. Quando falamos em biossegurança e manejo sanitário em zoológicos, as limitações orçamentárias dificultam a implementação de ações, pois a todo o momento aparecem outras prioridades. Durante a pesquisa, foi encontrada certa dificuldade em coletar referenciais bibliográficos sobre animais com hábitos totalmente aquáticos presentes em aquários ou Zoológicos do Brasil. Contudo, é possível encontrar diversas normas que auxiliam no tratamento, tanto da água como dos dejetos em geral. Conclusão: Também é possível concluir que, mesmo havendo controle de manejo sanitário e o acompanhamento diário de médicos veterinários, ainda há chances de contaminação, pelo fato de que é muito difícil controlar um ambiente tão aberto como as fundações/parques zoológicos, que recebem visitas de animais de fora, que não passaram por tratamento, como roedores, aves e primatas. E estes, carregam bactérias naturais em sua microbiota que, ao entrar em contato com a água, contaminam-na.
INFECÇÕES DO TRATO URINÁRIO BAIXO DE CÃES E GATOS
Authors: ARAÚJO RONIUZA RENEUDA DE , LIMA MARIANA ORSANO VIEIRA , ALVES LAYSE DE SOUSA , SILVA MARIANA MARTINS DA , BRANDÃO FRANCISCA ANDREZA DE SOUSA
Published: May 2022

Introdução: As infeções do trato urinário inferior (ITUI) são frequentes na clínica médica veterinária, sendo causas comuns de morbidade em cães e gatos, e uma das principais motivações para o uso de antimicrobianos nessas espécies. A etiologia das ITUI é diversa, podendo ocorrer por bactérias, fungos ou vírus, sendo mais comum de origem bacteriana, causando cistites, prostatites e/ou uretrites. Objetivos: Objetivou-se, portanto, realizar uma revisão de literatura abordando as principais classificações, diagnóstico, prognóstico e tratamento das ITUIs. Materiais e Métodos: Foram utilizados diferentes bancos de dados para a pesquisa de trabalho científicos sobre o assunto, como, Google Acadêmico, Plataforma Capes, SciElo e Science.gov, além de livros-textos. Resultados: A colonização patológica dos microrganismos no trato urinário inferior dos animais pode ser por um único agente ou por vários. A etiologia das ITUI é diversa, podendo ocorrer por bactérias, fungos ou vírus, sendo mais comum de origem bacteriana, causando cistites, prostatites e/ou uretrites. Vários fatores estão relacionados com o surgimento de uma ITUI, no entanto, as falhas nos mecanismos de defesa do hospedeiro, com a presença de fatores predisponentes e/ou co- morbidades, e o número de agentes infectantes, bem como seus fatores de patogenicidade, são os principais. A infecção do TUI geralmente envolve a colonização bacterina da genitália, ascensão das bactérias pela uretra e aderência das mesmas nos tecidos do TUI. Considerações finais: É importante a realização de estudo minucioso e individual de cada paciente sugestivo de ITUI para a obtenção de sucesso terapêutico, uma vez que a frequente utilização de antibióticos, na maioria das vezes feita de forma empírica, nesses pacientes torna-se motivo de preocupação quando considerada as resistências bacterianas.