bluuebunny/crossref_metadata_2025 huggingface dataset:
Modelos de negocio innovadores dentro del nicho de los mercados turísticos: identidad compartida, autenticidad y redes flexibles. El caso de PYMEs italianas
Authors: Montaguti Federica , Mingotto Erica
Published: March 2023

La evolución de los modelos de negocio es un desafío crucial para las empresas turísticas, las cuales tendrían que aprender como pueden estimular su creatividad e introducir innovaciones. No obstante, para muchas firmas, sobre todo las pequeñas y medianas empresas, este proceso no es tan fácil de adoptar. Aún más difícil es entender como los modelos de negocio tienen que cambiar para poder resolver uno de los problemas principales para las pequeñas y medianas empresas, sobretodo en destinos turísticos ya maduros, como dirigirse a nuevos segmentos rentables.Este artículo expone los principales resultados de un proyecto de búsqueda realizado por las autoras sobre los cambios en los modelos de negocio de las empresas turísticas italianas, destacando tres casos prácticos de interés en términos de innovación puestos en marcha por las pequeñas y medianas empresas. El análisis - basado sobre el “business model canvas”, el “value constellation” y la narración (storytelling) – ha descubierto que estas tres firmas son flexibles y tienen características emblemáticas en el uso de la economía del conocimiento y de la información. Estas empresas responden de manera eficaz a las necesidades especificas del mercado, encontrando así nuevas oportunidades en el interior de los mercados turísticos ya maduros y de los destinos más conocidos.Es gracias a sus habilidades de desarrollar unas redes amplias y flexibles, en las cuales los consumidores mismos son parte activa, y gracias también a la propuesta en valor, fundada sobre una identidad compartida entre los clientes mismos y la empresa y una autenticidad garantida por la historia personal de los fundadores.
JOB IN©: Desarrollo de una plataforma para la preselección “SMART” para el sector HORECA
Authors: Tous Pallarés Jordi , Merma Linares Cinthya Camila , Brijaldo Moreno Solángel Alejandra , Romeo Delgado Marina , Yepes Baldó Monserrat
Published: March 2023

El presente estudio tiene como objetivo general aplicar, difundir y validar JOB IN ©. Se trata de una plataforma que automatiza los procesos de reclutamiento, preselección y selección de candidatos para el sector de la hostelería, restauración y catering (HORECA) a partir del análisis e identificación de competencias y procesos psicosociales claves para el desempeño de calidad en el puesto.Para validar la plataforma se empleó una muestra de 363 candidatos con edades comprendidas entre los 18 y 56 años, siendo más frecuentes los menores de 20 años (53.5%) que buscaban su primer empleo en el sector. Un 53.7% de la muestra eran mujeres. Para validar los resultados de JOB IN © se utilizaron los test HORECA-5 y Overall Personality Assesment Scale (OPERAS).Los resultados ponen de manifiesto que la plataforma JOB IN © presenta características “smart” porque mejora la accesibilidad y la calidad de los procesos de reclutamiento y preselección de candidatos en el sector hotelero. Las facetas de la plataforma muestran una fiabilidad muy discreta al igual que la fiabilidad global (a=.546). Adicionalmente, se hallaron correlaciones altas y significativas entre facetas de la escala y las escalas HORECA-5 y OPERAS.
Profile of the consumer who values responsible and smart tourism in the hotel industry
Authors: Pérez-Aranda Canela José Antonio , Boronat Navarro Montserrat
Published: March 2023

PurposeDeveloping CSR is one of the most important aspects of so-called Smart Tourism, just as an in-depth knowledge of consumer characteristics and behavior is a key element of smart tourism management.Tourism and hotel companies’ understanding of the importance of CSR, as well as the value the consumer places on it, may result in increased quality of the travel experience and, therefore, in improving the destination's competitive advantage. This work aims to analyze the influence of certain sociodemographic characteristics of hotel consumers on their views of CSR and whether said views affect their purchasing behavior.ApproachA review of the literature is carried out, followed by a descriptive study with a sample of 4685 consumers from different nationalities.FindingsThe results show that age, education level, and nationality are characteristics that influence hotel product consumers’ views of CSR.Practical ImplicationsSmart tourism involves offering products that are increasingly adapted to the specific needs of each client and, therefore, knowing which consumer profile places the most importance on CSR may guide the actions of tourism companies.OriginalityIn the literature there are several studies on the impact of CSR views in different interest groups, especially managers and employees. However, there are fewer studies on hotel consumers’ views on CSR and the importance they place upon it. This study aims to offer an initial understanding of a sociodemographic profile of the client in relation to their views on CSR.
Reminiscencias de la Influencia de la Cultura Árabe en el Patrimonio Gastronómico de Granada
Authors: Navas Pérez Paula
Published: March 2023

A lo largo de la historia muchas civilizaciones han ocupado la península ibérica. De este conjunto de pueblos que dejaron su impronta en nuestro legado cultural, destacan los árabes, cuya área de influencia se extendió a lo largo de 8 siglos y que, sobre todo en la parte sur de la península, dejaron una imborrable huella que ha permanecido hasta nuestros días.En el territorio llamado al-Ándalus, los árabes incorporaron multitud de avances en los campos de la agricultura, la arquitectura o la gastronomía, entre otros, siendo éste último el objeto de estudio. A lo largo de la investigación, se trata el análisis de los usos y costumbres de la gastronomía de al-Ándalus, así como un estudio de todos aquellos elementos que los árabes introdujeron o cuyo uso intensificaron en la península. Por otro lado, mediante el cotejo de 4 recetarios, se ha tratado de establecer un inventario de ingredientes que fueron introducidos en la península ibérica por los árabes y que hoy en día permanecen en el corpus gastronómico de Granada.
Mobile Ethnography as an Innovative Tool for Customer Experience Research in Tourism – A Case of the Tourism Destination Upper Austria
Authors: Bosio Birgit , Prunthaller Sylvia
Published: March 2023

Service marketing has evolved from focussing on products to services to experiences. Enterprises are nowadays competing for and looking for competitive advantages in experiences rather than customer satisfaction. Even though customer experience management is nothing new, it is a field that has evolved strongly in the last years. Especially in tourism destinations, various local tourism providers struggle with providing high service quality throughout the whole customer journey.  Customer experience management has thus become an interesting approach also in tourism research. This paper applies customer experience research by using an innovative research method. Mobile ethnography as a qualitative method transfers the classic ethnographic approach by using mobile devices. Thus, the customer becomes a researcher himself and has the possibility to self-structure his or her data. Especially for tourism destinations, this method allows to “follow” the guest throughout the geographical space that he or she uses and collects data in real-time and in-situ. It therefore overcomes many of the disadvantages of both classic survey studies and ethnography. However briefing of participants and incentivising them turned out to be the main challenges in two projects carried out in the Austrian province of Upper Austria.
A Logit Model to explain Tourism Entrepreneurs’ Support for Tourism: Case Study for the island of Mauritius
Authors: Gowreesunkar Vanessa GB , Hugues Seraphin , Zaman Mustafeed
Published: March 2023

There is growing evidence that tourism entrepreneurs not only contribute in the socio-economic development of a nation but also in the overall attractiveness of a destination. In fact, numerous studies on the topic have led researchers to conclude that local entrepreneurs are important stakeholders and their supportiveness and/or non-supportiveness has a considerable impact on overall tourism development of a nation. Mauritius, as a small beach destination, is not exempt from this phenomenon. The island, which is popular for its sea, sun and sand, is dependent on its tourism enterprises to promote local resources and sustain tourism businesses. As a result, understanding the exact factors that account for local entrepreneurs’ support and/or non-support for tourism is important, failing which it might be difficult to develop tourism in a sustainable and socially compatible manner. At present, there is a dearth of research in the field of tourism entrepreneurship in Mauritius whereas this sector continues to be an important pillar of the local tourism industry. To address this knowledge gap, the present study analyses local entrepreneurs’ support for tourism development in a specific region of Mauritius. Methodologically, the study takes place using the mixed mode. The quantitative part of the study related to the administration of questionnaires and these were followed by the development of a hypotheses meant to be tested in a logistic regression model. The qualitative data was derived from semi-structured interviews conducted with formal and informal tourism entrepreneurs. The findings culminate into a Logit Model which statistically explains the factors that account for entrepreneurs’ supportiveness towards tourism. The uniqueness of this study lies in the fact that it is the first to propose a Logit Model on local entrepreneurs’ support for tourism development. Findings derived from the study generate important information on factors motivating entrepreneurs to support tourism and are helpful to tourism planners and promoters as well as policy makers. The study winds up with some discussions and proposes avenues for future research.
Impacto de la gestión inmobiliaria en la articulación de la oferta comercial de los ejes comerciales "prime" de las principales ciudades turísticas europeas
Authors: Marcos Jose Maria , Martínez Carme , Perez Anastasi
Published: March 2023

Partiendo de los conceptos “Calles de Lujo” o “Luxury Streets” y “Calle Comercial de Lujo” se define y justifica el concepto “Eje Comercial Prime”, caracterizado por ser una calle de máxima concentración y continuidad comercial, máximo tráfico peatonal y demanda turística, mínima disponibilidad de locales comerciales y por tener los precios de alquiler de locales comerciales más elevados de la ciudad. En el caso de Barcelona, las calles que cumplen los criterios anteriores son Passeig de Gràcia y Av. Portal de l’Àngel.Asimismo, en la investigación se constata que el precio de alquiler de los locales comerciales impacta en la cuenta de explotación de los establecimientos comerciales a través de la tasa de esfuerzo, y además impacta también en la rentabilidad de los inversores de locales comerciales en dichos ejes comerciales prime.Por primera vez en la literatura científica, se analiza el impacto del mercado inmobiliario de locales comerciales en la articulación de la oferta comercial de los ejes comerciales prime de las principales ciudades turísticas europeas, provocando una concentración sectorial, empresarial y de la propiedad.
LiteF2DNet: a lightweight learning framework for 3D reconstruction using fringe projection profilometry
Authors: Ravi Vaishnavi , Gorthi Rama Krishna
Published: March 2023

Fringe projection profilometry (FPP) is the most commonly used structured light approach for 3D object profiling. Traditional FPP algorithms have multistage procedures that can lead to error propagation. Deep-learning-based end-to-end models currently have been developed to mitigate this error propagation and provide faithful reconstruction. In this paper, we propose LiteF2DNet, a lightweight deep-learning framework to estimate the depth profile of objects, given reference and deformed fringes. The proposed framework has dense connections in the feature extraction module to aid better information flow. The parameters in the framework are 40% less than those in the base model, which also means less inference time and limited memory requirements, making it suitable for real-time 3D reconstruction. To circumvent the tedious process of collecting real samples, synthetic sample training was adopted in this work using Gaussian mixture models and computer-aided design objects. The qualitative and quantitative results presented in this work demonstrate that the proposed network performs well compared to other standard methods in the literature. Various analysis plots also illustrate the model’s superior performance at high dynamic ranges, even with low-frequency fringes and high noise. Moreover, the reconstruction results on real samples show that the proposed model can predict 3D profiles of real objects with synthetic sample training.
Laser Doppler multi-beam differential vibration sensor for real-time continuous visualization of buried objects in multiple frequency bands
Authors: Aranchuk Vyacheslav , Johnson Stanley , Aranchuk Ina , Hickey Craig
Published: March 2023

Laser-acoustic detection of buried objects, such as landmines, uses elastic waves in the ground and a laser vibrometer to create a vibration image of the ground surface. A decision on the presence of a buried object is made by analyzing vibration images for multiple vibration frequencies. With traditionally used laser Doppler vibrometers, the vibration imaging data are saved to a computer memory to be analyzed, which increases the detection time. A novel laser multi-beam differential interferometric sensor (LAMBDIS) that provides simultaneous real-time visualization of vibration images for multiple frequencies has been developed. The sensor is capable of displaying vibration images for up to 32 frequency bands simultaneously in real time. The sensor employs a digital line-scan complementary metal-oxide semiconductor camera and field programmable gate arraysbased real-time signal processing and is capable of operating continuously by scanning an object with a linear array of laser beams. Performance of the sensor has been verified experimentally. The ability of the LAMBDIS for real-time continuous vibration imaging of the ground surface in multiple frequency bands for laser-acoustic detection of buried objects has been demonstrated.
Digital Holography and 3D Imaging: introduction to the joint feature issue in Applied Optics and Journal of the Optical Society of America A
Authors: Chu Daping , Park Jae-Hyeung , Ferraro Pietro , Cheng Chau-Jern , Stoykova Elena , Banerjee Partha P.
Published: March 2023

This feature issue is a continuation of a tradition to follow the conclusion of the Optica Topical Meeting on Digital Holography and 3D Imaging (DH+3D). It addresses current research topics in digital holography and 3D imaging that are also in line with the topics of Applied Optics and Journal of the Optical Society of America A.
One-way light flow by spatio-temporal modulation
Authors: Abouelatta Mahmoud A. A. , Swillam Mohamed A. , Davoyan Artur R. , Mahmoud Ahmed M.
Published: March 2023

The unidirectional flow of electrons that takes place in a conventional electronic diode has been a cornerstone in the development of the field of electronics. Achieving an equivalent one-way flow for light has been a long-standing problem. While a number of concepts have been suggested recently, attaining a unidirectional flow of light in a two-port system (e.g., a waveguiding configuration) is still challenging. Here, we present what we believe to be a novel approach for breaking reciprocity and achieving one-way flow of light. Taking a nanoplasmonic waveguide as an example, we show that a combination of time-dependent interband optical transitions, when in systems exhibiting a backward wave flow, can yield light transmission strictly in one direction. In our configuration, the energy flow is unidirectional: light is fully reflected in one direction of propagation, and is unperturbed in the other. The concept can find use in a range of applications including communications, smart windows, thermal radiation management, and solar energy harvesting.
Virtual reality images created in back and front of a display
Authors: Ogata Yoichi , Kolchiba Mykyta
Published: March 2023

To better investigate the biological mechanism of microorganisms, we developed a novel virtual reality (VR) microscope which incorporates a head-mounted display (HMD) that creates VR images with a digital microscope. This type of VR microscope can be used with any type of optical microscope. The fabricated microscope is quite different from a common bi-focal device, and can create VR images on the back and front of the display. If the VR images are displayed with object (OBJ) images, they are observable in [2 x 2] (back and front VR images and OBJ images; 2x2=4 images). This feature can provide important information on microscopic OBJs, which can be employed in 3D biological analysis. Furthermore, if a laser light source is added to this microscope, the images can be observed in [3 x 2] (back and front laser VR images, VR images, and OBJ images; 3x2=6 images). The lasers would also enable optical trapping and tracking, leading to improved biological analysis.
Development of a digital imaging analysis system to evaluate the treatment response in superficial infantile hemangiomas
Authors: Xie Mingfeng , Liu Jianping , Zhou Pingsheng , Xu Xianyun , Liu Haijin , Zeng Linshan , Chen Feng , Zeng Yong , Huang Haijin , Peng Wei , Xiao Hui , Liu Qian
Published: March 2023

Superficial infantile hemangiomas (IH) are benign vascular tumors common in children characterized by bright red "strawberry" lesions on the skin. In order to optimize the treatment for this disease, there is a need to develop objective tools to assess treatment response. Since a color change in the lesion is a good indicator of treatment response, we have developed a digital imaging system to quantify the values of red, green, and blue (RGB) difference and RGB ratio between the tumor and normal tissue to take into account the variations in color between different skin types. The efficacy of the proposed system in assessing treatment response in superficial IH was evaluated in relation to established visual and biochemical tools used to grade hemangiomas. As the treatment progressed, the RGB ratio was almost 1, while the RGB difference was close to 0, which indicates a good response to treatment. There was a strong correlation between the RGB score and the other visual grading systems. However, the correlation between the RGB scoring system and the biochemical method was weak. These findings suggest that the system can be used clinically to objectively and accurately evaluate disease progression and treatment response in patients diagnosed with superficial IH.
Drivers of the decrease of patent similarities from 1976 to 2021
Authors: Filippi-Mazzola Edoardo , Bianchi Federica , Wit Ernst C.
Published: March 2023

The citation network of patents citing prior art arises from the legal obligation of patent applicants to properly disclose their invention. One way to study the relationship between current patents and their antecedents is by analyzing the similarity between the textual elements of patents. Many patent similarity indicators have shown a constant decrease since the mid-70s. Although several explanations have been proposed, more comprehensive analyses of this phenomenon have been rare. In this paper, we use a computationally efficient measure of patent similarity scores that leverages state-of-the-art Natural Language Processing tools, to investigate potential drivers of this apparent similarity decrease. This is achieved by modeling patent similarity scores by means of generalized additive models. We found that non-linear modeling specifications are able to distinguish between distinct, temporally varying drivers of the patent similarity levels that explain more variation in the data (R2 ∼ 18%) compared to previous methods. Moreover, the model reveals an underlying trend in similarity scores that is fundamentally different from the one presented previously.
School-based cognitive-behavioural therapy for children and adolescents with social anxiety disorder and social anxiety symptoms: A systematic review
Authors: Tse Zoie Wai Man , Emad Shaista , Hasan Md. Kamrul , Papathanasiou Ioanna V. , Rehman Ibad ur , Lee Ka Yiu
Published: March 2023

Background

Social anxiety disorder (SAD) is prevalent among children and adolescents. Cognitive-behavioural therapy (CBT) has been used as the first-line treatment. However, evaluation of CBT conducted in a school setting has been scarce.

Objectives

This study aims to review the CBT and its effectiveness in the school setting for children and adolescents with SAD or social anxiety symptoms. Quality assessment on individual studies was conducted.

Methods

Studies were identified through the search in PsycINFO, ERIC, PubMed and Medline targeting CBT conducted in a school setting with an aim to treat children and adolescents with SAD or social anxiety symptoms. Randomised controlled trials and quasi-experimental studies were selected.

Results

A total of 7 studies met the inclusion criteria. Five studies were randomised controlled trials, and two were quasi-experimental studies with 2558 participants aged 6–16 years from 138 primary schools and 20 secondary schools. There were minor effects to reduce social anxiety symptoms for children and adolescents at post-intervention in 86% of the selected studies. Friend for Life (FRIENDS), Super Skills for Life (SSL) and Skills for Academic and Social Success (SASS) conducted in school were more effective than the control conditions.

Conclusions

There is a lack of quality of the evidence for FRIENDS, SSL and SASS, due to inconsistencies on the outcome assessments, statistical analyses, and the fidelity measures adopted in individual studies. Insufficient school funding and workforce with relevant health background, and the low level of parental involvement in the intervention would be the major challenges in school-based CBT for children and adolescents with SAD or social anxiety symptoms.
Részvétel és önerő: A közepes jövedelmi csapda egy lehetséges újraértelmezése
Authors: Csontos Tamás Tibor
Published: March 2023

A tanulmány a mainstream közgazdaságtanban elterjedtté vált közepes jövedelmi csapda fogalmának újraértelmezésére vállalkozik politikai gazdaságtani szemszögből. A világrendszer-elemzés és a mosolygörbe elméletének segítségével kidolgozza a részvétel és önerő modelljét és ebben az új keretben értelmezi a közepes fejlettségű országok csapdáját. A részvétel stratégiájának célja a globális munkamegosztásban való részvétellel járó felzárkózást segítő termelési, fogyasztási és intézményi tényezők elérése, míg az önerő stratégia a részvétellel járó felzárkózást gátló tényezők neutralizálására irányuló erőfeszítéseket takarja. A tanulmány ezek alapján kétféle közepes fejlettségi csapdát különít el. Egyrészt a kizáródási csapdát, amely az önerőre való egyoldalú fókuszálásból következik. Másrészt a kiszolgáltatottsági csapdát, amely a részvételre való egyoldalú fókusz eredménye. A modell amellett érvel, hogy a felzárkózás csakis a részvétel és önerő harmóniája esetén érhető el. Emellett a tanulmány történeti értelemben dinamizálja a koncepciót, összekötve azt a globalizáció szakaszaival. Rámutat, hogy a második világháború után a globalizáció beágyazott liberális szakaszában a kizáródási csapda, míg a globalizáció neoliberális szakaszában a kiszolgáltatottsági csapda veszélye erősödött meg. A tanulmány továbbá a részvétel és önerő megközelítését alkalmazza a kelet-közép-európai országok közepes fejlettségi csapdájának elemzésére. A szocialista tervgazdaságokat a kizáródási csapdával, míg a rendszerváltások után kibontakozó, függő piacgazdasági modellt a kiszolgáltatottsági csapdával azonosítja.
Az exportképesség és jövedelmezőség kapcsolata a dél-dunántúli feldolgozó szektorban 2014 és 2019 között
Authors: Molnár Dániel , Csonka Arnold , Bareith Tibor
Published: March 2023

Tanulmányunkban a dél-dunántúli régió stratégiai szempontból kiemelt iparágát a feldolgozóipar jövedelmezőségét vizsgáltuk 2014 és 2019 között az exportképesség tükrében. Hipotézisünk szerint az aktív exportértékesítést folytató vállalatok eredményessége különbözik a kizárólag hazai piacra termelő vállalatokétól. Vizsgálatunkban endogén és exogén hatások kontrollja mellett, összesen négy különböző modellspecifikációban teszteltük a hipotézisünket. Eredményeink alapján a jövedelmezőség és az exportértékesítés között nem találtunk statisztikailag igazolható kapcsolatot, azonban a vállalatok tőkeáttételi mutatója, a munkaerő hatékonyság és a HUF/EUR árfolyam jelentősen befolyásolja a jövedelmezőségét. Igazoltuk továbbá, hogy a műszaki vállalatok magasabb jövedelmezőséget mutattak a vizsgált időszakban, a földrajzi elhelyezkedésnek viszont nincs hatása az eredményre.
The communicative dimension of graphic design elements - Such as infographics
Authors: Mohamed Elsir Ali Saad , Ali Mohammed Abdalgader Osman , Mohamed Mathani Hassan Abashar
Published: March 2023

The purpose of the current study is to address a research question about the role that visual design elements have in communication. The data were collected based on their technical relevance, which highlights the general description of the field of research that includes graphics, infographics in the field of communication, and elements of visual design Review of the relevant literature and concepts: To begin with, we must consider the communication aspects of the design in order to produce truly successful visual design elements. The communicative dimension of graphic design elements such as infographics are invaluable in conveying information in a clear and engaging way. Two opened the way for the expansion of the use of visual elements in the manufacture of the media message. This study discusses the communicative dimensions of visual design elements, in general, and infographics in particular, as infographic is part of information visualization. This study discusses the communicative dimensions of visual design elements, in general, and infographics in particular, as Infographic is part of information visualization, in addition to that it is a research field related to communication as it focuses on patterns and trends in abstract data sets, and the field of infographic design, and information visualization combines the concepts of computer science, data mining, cognitive sciences and graphic design, this is important in controlling and measuring the quality of communication because the ability to collect, store and manage data, despite the increasing pace of its updating, remains our ability On their understanding relatively constant. The size, shape, and color of visual design elements can also play a role in communication. According to the results obtained, it was determined that the use of graphs as a visual communication tool was effective in evaluation, understanding and continuity.
Effects of Utazi leaf (Gongronema latifolium) and Aloe vera (Aloe barbadensis) on the quality attribute of formulated herbal yoghurt
Authors: Mbaeyi-Nwaoha Ifeoma Elizabeth , Ojochegbe Alhassan Freedom , Nnamani Chidera Juliet
Published: March 2023

The effect of utazi leave and aloe vera on the quality attribute of formulated herbal yoghurt was studied. Utazi leaf was processed into extract sorting, washing, mashing, sieving, and packaging while aloe vera was processed into paste cleaning, washing, blending, sieving, packaging and refrigeration. Herbal yoghurt was produced from mixture of utazi extract/aloe vera and plain yoghurt at different ratios (WFMA = 297 mL plain yoghurt and 3 mL utazi extract; YC = 300 mL plain yoghurt only; YU1 = 297 mL plain yoghurt + 3 mL utazi extract; YU2 = 294 mL plain yoghurt + 6 mL utazi extract; YAV1 = 297 mL plain yoghurt + 3 mL aloe vera paste; YAV2 = 294 mL plain yoghurt + 6 mL aloe vera paste. The herbal yoghurts samples were subjected to proximate, micronutrients, microbial, phytochemical, sensory properties analysis using standard methods. The proximate composition results of the herbal yoghurt showed that the crude protein varied from 4.75 to 5.75%, fat 3.35 to 4.52%, ash 1.55 to 2.01%, fiber 0.09 to 0.97%, moisture 78.1 to 82.73% and carbohydrate 6.99 to 10.20%. Calcium, Magnesium, vitamin A and E contents ranged from 13.95 to 14.52, 0.90 to 2.50, 1.99 to 3.55 and 5.00 to 6.00 mg/100 g-1, respectively. Microbial results showed that the mould count for the control (YC) had higher total viable count 15x107 (CFU/mL-1) and higher mould count 15x107 (CFU/mL-1) compared to the composite herbal yoghurt. The phytochemical analyses of the herbal yoghurt values showed tannin to range between 0.12 and 0.51%, alkaloids 1.05 to 4.10 % and saponin ranged from 2.05 to 5.05. The sensory results of the herbal yoghurt showed that taste ranged from 6.15 to 7.35, consistency 6.35 to 6.95, appearance 6.70 to 7.45, mouthfeel 6.20 to 720, aroma 6.30 to 7.30, aftertaste 5.00 to 7.15 and over all acceptability ranged from 6.20 to 8.00.
Culture media influence on vegetative growth and mycelia weight of Mycosphaerella fijiensis: implication for inoculum production
Authors: Kumakech Alfred , Opio Tonny
Published: March 2023

Six (6) culture media (Potato Dextrose Agar, Malt Extract Agar, AFPA Base, Czapek Dox Agar, Nutrient Agar and Yeast Extract), were tested for their effect on colony growth and mycelia weight of Mycosphaerella fijiensis. The isolate of M. fijiensis (Kaw10) produced vegetative mycelial growth on all six-culture media. Culture media effect on the level of vegetative mycelial colonization and mycelia weight was significant. The highest and lowest vegetative mycelia colonization was recorded on malt extract (23.5 mm) and AFPA Base (4.2 mm), respectively. Similarly, culture media effect on mycelia weight was significant. Malt extract agar produced more mycelia weight (0.34g) than the control, PDA (0.11g). Collectively, our data identify malt extract agar as a good medium for improving growth of Mycosphaerella fijiensis.
Recinfernália: uma cidade que é mutação desejante e invenção permanente
Authors: De Alencar Castelo Branco Edwar
Published: March 2023

O principal propósito deste artigo é apropriar-se historicamente do filme Recinfernália (1975), do filósofo, poeta, ator, cineasta e agitador cultural pernambucano Jomard Muniz de Britto. No texto se procurará abordar, principalmente, as contribuições do autor ao esforço de bricolagem e (re)invenção identitária da cidade do Recife, bricolagem que se realizaria através de uma intensa atividade artística voltada, entre outras coisas, para uma submissão da “pernambucanidade tropicológica” a um delírio que a obrigasse a transmutar-se em “pernambucália tropicalista”. No caso de Recinfernália, trata-se de um esforço de Jomard Muniz de Britto para reposicionar a identidade espacial da capital pernambucana, forçando-a a escapar da aparência de identificação consigo mesma que a tradição tropicológica, do ponto de vista do sujeito ora estudado, buscava impor ao Recife e mesmo ao objeto cultura brasileira. Em filme, portanto, Jomard consuma o programa tático de Michel de Certeau: a ver a cidade, espreitando-a, prefere misturarse com ela, praticando-a e por consequência borrando o cartão-postal
Bagaimana Melakukan Penelitian Tindakan Kelas Bagi Guru?
Authors: Machali Imam
Published: March 2023

Tujuan – Penelitian ini bertujuan memaparkan tentang Penelitian Tindakan Kelas, model-model penelitian tindakan kelas, dan bagaimana melakukan penelitian tindakan kelas bagi guru.

Metode – Secara  deskriptif membahas tentang penelitian Tindakan Kelas, model-model penelitian tindakan kelas, dan bagaimana melakukan penelitian tindakan kelas bagi guru. Data diperoleh melalui literatur, buku, jurnal, laporan penelitian tentang penelitian tidakan kelas, dan review karya PTK dalam berbagai kegiatan ilmiah. Kemudian data diulas secara deskriptif untuk menjawab rumusan masalah yang telah ditentukan. 

Hasil – Penelitian Tindakan Kelas adalah suatu pencermatan terhadap kegiatan pembelajaran berupa sebuah tindakan, yang sengaja dimunculkan dan terjadi dalam sebuah kelas secara bersamaan. Model-model PTK yang sering digunakan di dalam penelitian tindakan di antaranya adalah Model Kurt Lewin, Model Kemmis & McTaggart, model John Elliott, dan model Hopkins. Sedangkan cara melakukan penelitian tindakna kelas bagi para guru setidaknya terdiri dari empat langkah yaitu plan (perencanaan), act (tindakan), observe (pengamatan), dan reflect (perenungan).
Optimal power flow solutions to power systems with wind energy using a highly effective meta-heuristic algorithm
Authors: Le Thi Minh Chau , Le Xuan Chau , Huynh Ngoc Nguyen Phuong , Doan Anh Tuan , Dinh Thanh Viet , Duong Minh Quan
Published: March 2023

This paper implements two novel meta-heuristic algorithms, including the Coati optimization algorithm (COA) and War strategy optimization (WSO) for determining the optimal solutions to the optimal power flow problem incorporating the use of wind turbines (WTs). Two objective functions are considered in this study, including minimizing the entire electricity generation expenditure (EEGE) with the value point effect and minimizing the voltage fluctuation index (VFI). IEEE 30-bus system is chosen to conduct the whole study and validate the efficiency of the two applied methods. Furthermore, DFIG WTs are used in grids with varying power output and power factor ranges. The comparison of the results obtained from the two methods in all case studies reveals that WSO is vastly superior to COA in almost all aspects. In addition, the positive contributions of WTs to the EEGE and VFI while they are properly placed in the grid are also clarified by using WSO. As a result, WSO is acknowledged as a highly effective search method for dealing with such optimal power flow (OPF) problems considering the presence of renewable energy sources.
Open books and embeddings of smooth and contact manifolds
Authors: Nath Arijit , Saha Kuldeep
Published: March 2023

We discuss some embedding results in the category of open books, Lefschetz fibrations, contact manifolds and contact open books. First we prove an open book version of the Haefliger–Hirsch embedding theorem by showing that every k-connected closed n-manifold (n ≥ 7, k < (n − 4)/2) with signature zero admits an open book embedding in the trivial open book of 𝕊2n
−
k
. We then prove that every closed manifold M
2n+1 that bounds an achiral Lefschetz fibration admits an open book embedding in the trivial open book of 𝕊2⌊3n/2⌋+3. We also prove that every closed manifold M
2n+1 bounding an achiral Lefschetz fibration admits a contact structure that isocontact embeds in the standard contact structure on ℝ2n+3. Finally, we give various examples of contact open book embeddings of contact (2n + 1)-manifolds in the trivial supporting open book of the standard contact structure on 𝕊4n+1.
Recovery from the COVID-19 Recession: Uneven Effects among Young Workers?
Authors: Chatterji Pinka , Li Yue
Published: March 2023

In this paper, we examine the labor market recovery from the COVID-19 recession and test for effects of termination of pandemic unemployment insurance programs among 15–24-year-olds. We use data from the January 2016–October 2022 Current Population Survey. Using regression-based methods, we show that while 15–19-year-olds experienced a brisk, full recovery in labor market outcomes from the COVID-19 recession, the recovery was sluggish and incomplete among 20–24-year-olds, with some work outcomes lagging below pre-pandemic norms well into 2022. Termination of pandemic UI programs led to increased work hours and full-time employment among 20–24-year-olds but did not have these effects among 15–19-year-olds.
Changes in oxidative stress markers in pediatric burn injury over a 1-week period
Authors: Harma Birsen , Kıran Tuğba Raika
Published: March 2023

The importance of oxidative stress in the pathogenesis of burn injuries has been shown in various studies. Glutathione (GSH) and thiols have important roles in antioxidant protection and detoxification. The study aimed to investigate the relationship between pediatric burn trauma and GSH and thiol homeostasis. Twenty-nine children with thermal-burn injuries and 29 healthy peers are included in this prospective randomized study. Children with burn wounds of 15–25% of total body surface area (TBSA) were included in the patient group. The control group was created from healthy peers of both sexes. All children were 1–10 years of age. Serum GSH, oxidized glutathione (GSSG), redox ratio (GSH/GSSG), and thiol–disulfide (SS) tests were conducted in both groups, and the changes between admission and day 7 were analyzed in patients with burn injuries. The mean age was 4.09 ± 2.54 years for the patient group and 4.28 ± 2.55 years for the controls (p > 0.05). Total thiol (TT), native thiol (SH), and SS levels were significantly lower in the patient group than in the controls (TT = 291.69 ± 7.93 vs 346.79 ± 18.89 μmol/L, SH = 259.39 ± 7.90 vs 297.64 ± 12.81 μmol/L, SS = 16.15 ± 4.68 vs 24.58 ± 5.76 μmol/L; p < 0.001). SH/TT ratio was higher in the patient group (89.05 ± 3.00 vs 85.93 ± 3.01 μmol/L; p < 0.001). The SS/SH and SS/TT ratios were significantly lower in the patient group, while the SH/TT ratio was significantly higher (p < 0.001). The patients had significantly decreased GSH levels (26.12 ± 2.42 vs 34.80 ± 2.26) and GSH/GSSG ratios (1.69 ± 0.12 vs 3.05 ± 0.29) and increased GSSG levels (16.09 ± 0.34 vs 11.48 ± 1.17, p < 0.001 for all). The GSSG level and GSSG/SH and GSSG/TT ratios were higher in the patient group than in the controls while the SH, TT, and SS levels, and SS/SH and SS/TT ratios were lower in the patient group. Analysis of serum GSSG levels, and ratios with SH and TT homeostasis, might be useful in order to determine burn damage in children.
Establishing a baseline for multilingual capabilities of medical students at the Michigan State University College of Osteopathic Medicine
Authors: Tripathi Vraj , Wisniewski Samuel J. , Rowan Jacob , Ruger Katherine
Published: March 2023

Context

The language proficiencies of Michigan State University College of Osteopathic Medicine (MSUCOM) medical students are unknown. As of 2015, approximately 8% (or roughly 25 million) of the US population over the age of five were considered “limited English proficient”. Research indicates, however, that it is valuable to patients to be able to communicate in their primary language with their primary care physician. If medical students’ language proficiencies were known, the medical school curriculum could be adapted to leverage or enhance a student’s language proficiencies, preparing students to serve in communities where their patients language proficiencies align.

Objectives

The aim of this pilot study was to survey MSUCOM medical students in order to assess their language proficiencies with two goals in mind: first, to develop medical school curriculum that would leverage student’s language proficiencies, and second, to encourage student placement within diverse communities throughout the state of Michigan where these physicians-in-training speak or understand the primary language of the local community to better serve patients.

Methods

For this cross-sectional descriptive pilot study, a short, author-created survey was sent to 1,226 osteopathic medical students (OMS-I to OMS-IV) at MSUCOM. Participants were asked questions pertaining to language proficiency, number of languages spoken, prior exposure to education abroad, and demographic information. All participant data were only reported in grouped, collective, de-identified terms. Descriptive statistical analyses (frequencies, percentages) were calculated utilizing SPSS Version 25 software.

Results

Over the course of several months, 698 (58.7%) current MSUCOM medical students participated in the study. Of those students, 382 (54.7%) responded that they were multilingual. The top three second languages reported spoken were: English 332 (47.6%), Spanish 169 (24.2%), and Arabic 64 (9.2%). In addition, 249 (37.2%) said they had prior exposure to education abroad, and 177 (26.4%) said they had lived in another country for more than 6 months.

Conclusions

The majority, 382 (54.7%), of the MSUCOM students who participated in the survey have some degree of multilingual capabilities. The student population at MSUCOM may benefit from completing primary care rotations in diverse communities within the state of Michigan. Likewise, the communities throughout Michigan may benefit from having bilingual and multilingual medical students serve in their medical facilities. Further research on the efficacy of leveraging language skills in various communities, as well as broadening the population sample, is warranted to refine and validate the observed pilot study results.
Determining a minimum data set for reporting clinical and radiologic data for pseudomyxoma peritonei
Authors: Patrick-Brown Thale D.J.H. , Mohamed Faheez , Thrower Andrew , Torgunrud Annette , Cosyns Sarah , Canbay Emel , Villeneuve Laurent , Flatmark Kjersti , Brandl Andreas
Published: March 2023

Objectives

Pseudomyxoma peritonei (PMP) is a rare cancer currently affecting over 11,736 patients across Europe. Since PMP is so uncommon, collaboration between scientific centers is key to discovering the mechanisms behind the disease, efficient treatments, and targets pointing to a cure. To date, no consensus has been reached on the minimum data that should be collected during PMP research studies. This issue has become more important as biobanking becomes the norm. This paper begins the discussion around a minimum data set that should be collected by researchers through a review of available clinical trial reports in order to facilitate collaborative efforts within the PMP research community.

Content

A review of articles from PubMed, CenterWatch, ClinicalTrials.gov and MedRxiv was undertaken, and clinical trials reporting PMP results selected.

There is a core set of data that researchers report, including age and sex, overall survival, peritoneal cancer index (PCI) score, and completeness of cytoreduction, but after this, reports become variable.

Outlook

Since PMP is a rare disease, it is important that reports include as large of a number of standardised data points as possible. Our research indicates that there is still much ground to cover before this becomes a reality.
Protection of wood against bio-attack and research of new effective and environmental friendly fungicides
Authors: Alabi Kazeem A. , Abdulsalami Ibrahim O. , Ajibola Kazeem O. , Sadiku Nusirat A. , Adeoye Mariam D. , Lawal Abdul Azeez T. , Adigun Rasheed A.
Published: March 2023

This research investigated the design, chemical modification, characterization and biocidal evaluation of waxes. Tallow (animal fat), bee-wax (insect) and shea butter (plant fat) were first converted to carboxylates by metathesis and later transformed into urea and thiourea complexes. The transformation was monitored using UV–visible, FT-IR and scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy. They were also screened for biocidal activities using two white rots (Pleurotus sajor-cajor and Pleurotus oestratus), two brown rots (Sclerotium rolfsii and Rhizotonia solanii) and a soft rot (Cheatomium globosum). The UV–visible absorption peaks shifted to a longer wavelength for the complexes in relation to the carboxylates signifying lower energy and higher activities. Carboxylates showed very sharp peaks around 1700 cm−1 attributable to the carbonyl functional group (C=O) (Scheme 1), the carbonyl (C=O) peaks in the carboxylates were replaced by the appearance of another peaks in the urea and thiourea complexes at around 1600 cm−1 attributable to azomethine (C=N) (Scheme 2 and 3). None of the surface morphologies of the samples (crystalline) is identical. This result further confirmed the formation of the products. The result of fungi assay showed that tallow based carboxylate, urea and thiourea complexes greatly inhibited the growth of all the fungi species used. However, bees wax based carboxylate and its complexes as well as plant-fat based carboxylate and its complexes could not inhibit the growth of Sclerotium rolfsii. For insect and plant-based urea complexes, there were tiny growths (pin head) seen on the plates inoculated with P. sajor-cajor and P. oestratus, respectively. The findings of this work showed that urea and thiourea complexes performed better than carboxylates in fungi inhibition. Tallow-based products (carboxylates, urea and thiourea) showed the greatest anti-fungi properties.
Sea ice and snow characteristics from year-long transects at the MOSAiC Central Observatory
Authors: Itkin Polona , Hendricks Stefan , Webster Melinda , von Albedyll Luisa , Arndt Stefanie , Divine Dmitry , Jaggi Matthias , Oggier Marc , Raphael Ian , Ricker Robert , Rohde Jan , Schneebeli Martin , Liston Glen E.
Published: March 2023

Repeated transects have become the backbone of spatially distributed ice and snow thickness measurements crucial for understanding of ice mass balance. Here we detail the transects at the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) 2019–2020, which represent the first such measurements collected across an entire season. Compared with similar historical transects, the snow at MOSAiC was thin (mean depths of approximately 0.1–0.3 m), while the sea ice was relatively thick first-year ice (FYI) and second-year ice (SYI). SYI was of two distinct types: relatively thin level ice formed from surfaces with extensive melt pond cover, and relatively thick deformed ice. On level SYI, spatial signatures of refrozen melt ponds remained detectable in January. At the beginning of winter the thinnest ice also had the thinnest snow, with winter growth rates of thin ice (0.33 m month−1 for FYI, 0.24 m month−1 for previously ponded SYI) exceeding that of thick ice (0.2 m month−1). By January, FYI already had a greater modal ice thickness (1.1 m) than previously ponded SYI (0.9 m). By February, modal thickness of all SYI and FYI became indistinguishable at about 1.4 m. The largest modal thicknesses were measured in May at 1.7 m. Transects included deformed ice, where largest volumes of snow accumulated by April. The remaining snow on level ice exhibited typical spatial heterogeneity in the form of snow dunes. Spatial correlation length scales for snow and sea ice ranged from 20 to 40 m or 60 to 90 m, depending on the sampling direction, which suggests that the known anisotropy of snow dunes also manifests in spatial patterns in sea ice thickness. The diverse snow and ice thickness data obtained from the MOSAiC transects represent an invaluable resource for model and remote sensing product development.
Physical properties of Mg doped ZnS thin films via spray pyrolysis
Authors:   Department of Physics, College of Science, Mustansiriyah University, Baghdad, Iraq, Ali R. S. , Rasheed H. S. ,   Department of Physics, College of Education, Mustansiriyah University, Baghdad, Iraq, Abdulameer N. D. ,   Department of Optics Techniques, Al-Mustaqbal University College, Babylon, Iraq, Habubi N. F. ,   Department of Engineering of Refrigeration and Air Conditioning Technologies, Alnukhba University College, Baghdad, Iraq, Chiad S. S. ,   Department of Physics, College of Education, Mustansiriyah University, Baghdad, Iraq
Published: March 2023

Chemical spray pyrolysis (CSP) was utilized to create pure Zinc Sulfide (ZnS) and magnesium (Mg) doped thin films on a clean glass substrate at a temperature equal to 400°C. X-ray diffraction test revealed a cubic wurtzite crystal structure with average crystallite sizes of 10.99 and 12.27 nm for ZnS and ZnS: Mg, respectively. XRD analysis of the doped films revealed a polycrystalline structure with a predominant peak along the (220) plane and additional peaks along the (111), (200), and (222) planes. The grain size raised from 10.99 to 12.27 nm as a result of the XRD patterns. The increase in Mg content from 0% to 3%, affect the bandgap that fell from 3.52 to 3.42 eV. As the Mg content increased, the transmittance and refractive index of the films was lowered.