bluuebunny/crossref_metadata_2025 huggingface dataset:
Sleep Deprivation, a Link Between Post-Traumatic Stress Disorder and Alzheimer’s Disease
Authors: Delic Vedad , Ratliff Whitney A. , Citron Bruce A.
Published: January 2021

An estimated 5 million Americans are living with Alzheimer's disease (AD), and there is also a significant impact on caregivers, with an additional 16 million Americans providing unpaid care for individuals with AD and other dementias. These numbers are projected to increase in the coming years. While AD is still without a cure, continued research efforts have led to better understanding of pathology and potential risk factors that could be exploited to slow disease progression. A bidirectional relationship between sleep deprivation and AD has been suggested and is well supported by both human and animal studies. Even brief episodes of inadequate sleep have been shown to cause an increase in amyloidβ and tau proteins, both well-established contributors toAD pathology. Sleep deprivation is also the most common consequence of post-traumatic stress disorder (PTSD). Patients with PTSD frequently present with sleep disturbances and also develop dementia at twice the rate of the general population accounting for a disproportionate representation of AD among U.S. Veterans. The goal of this review is to highlight the relationship triad between sleep deprivation, AD, and PTSD as well as their impact on molecular mechanisms driving AD pathology.
Trends in Dementia and Mild Cognitive Impairment Prevalence and Incidence in German General and Specialist Practices Between 2015 and 2019
Authors: Bohlken Jens , Riedel-Heller Steffi , Steininger Gilles , Kostev Karel , Michalowsky Bernhard
Published: January 2021

Background:

The number of patients with dementia is forecast to grow continuously. However, there are indications that the incidence and prevalence is falling in high-income countries.

Objective:

To examine whether any effects of declining incidence and prevalence rates of dementia and mild cognitive impairment (MCI) were evident in Germany between 2015 and 2019.

Methods:

The analysis was based on 797 general and 132 specialists (neurological/psychiatric) practices and included 10.1 million patients aged 18 years and older who visited between January 2014 and December 2019 one of the practitioners. The prevalence and incidence of dementia and MCI were demonstrated descriptively.

Results:

Between 2015 and 2019, the prevalence (incidence) of dementia decreased from 2.18%(0.44%) in 2015 to 2.07%(0.35%) in 2019. A relatively large decrease in the prevalence (incidence) of dementia was observed in patients aged 80 and older, at –1.47%(–0.62%), compared to younger patients, at –0.40%(–0.18%). By contrast, the prevalence and incidence of MCI have remained constant over the years (0.19%to 0.22%and 0.06%, respectively). Overall, the number of patients diagnosed with dementia decreased slightly by 1%while the number of patients diagnosed with MCI increased by 17%.

Conclusion:

Our results confirmed the reduction in the prevalence and incidence of dementia and revealed a decrease in the number of patients with dementia despite continued demographic changes. Future studies are warranted to determine whether the results are caused by changing risk and lifestyle factors or changes in medical diagnosis and treatment behavior of the practitioners.
People with Parkinson’s Disease: What Symptoms Do They Most Want to Improve and How Does This Change with Disease Duration?
Authors: Port Rebecca J. , Rumsby Martin , Brown Graham , Harrison Ian F. , Amjad Anneesa , Bale Claire J.
Published: January 2021

Background: Parkinson’s disease (PD) is a neurodegenerative condition with a diverse and complex pattern of motor and non-motor symptoms which change over time with disease duration. Objective: The aims of the present study were to discover what symptoms matter most to people with the condition and to examine how these priorities change with disease duration. Methods: A simple free-text online survey (using SmartSurvey) was developed by Parkinson’s UK, which asked participants to identify up to three aspects of the condition they would most like to see improvement in. Results: 790 people participated reporting 2,295 issues related to PD which were grouped into 24 broad symptom domains. Of these, 1,358 (59.1%) were categorised as motor symptoms, 859 (37.4%) as non-motor issues and 78 (3.4%) as medication problems. This study reveals how certain features of PD become more or less important to patients as the condition progresses. Non-motor symptoms were highly cited from the very earliest stages of PD. Problems with walking, balance and falls, speech problems, freezing and dyskinesia become increasingly important as the condition progresses whereas tremor, stiffness and psychological health become decreasingly important as the condition progresses. Conclusions: The data suggest that the priorities of people affected by PD for improving life are personal and change with duration of the condition. These findings have implications for developing person-centred management and care, as well as for directing future research to improve quality of life.
Pre-employment transition services for students with disabilities: A scoping review
Authors: Frentzel Elizabeth , Geyman Zoe , Rasmussen Jeremy , Nye Chad , Murphy Kathleen M.
Published: January 2021

BACKGROUND: Students with disabilities often experience numerous challenges in terms of finding employment. Given the important role of vocational rehabilitation counselors in supporting employment activities for these students, a need exists for identifying effective strategies that increase employment outcomes for this population. OBJECTIVE: The objective of this scoping review is to examine and describe successful research- based interventions on pre-employment transition services for students with disabilities that can be used by vocational rehabilitation counselors. METHODS: The search strategy examined literature from 1998 through 2017 focused on vocational rehabilitation counselors, students with disabilities, and elements related to pre-employment transition services. Articles included American, European, and Australian literature published in English. RESULTS: This review identified a number of research-based interventions that support employment outcomes for students with disabilities. CONCLUSIONS: The research-based interventions identified in this scoping review can help vocational rehabilitation counselors consider effective strategies for increasing employment outcomes for students with disabilities.
Using a literacy-based behavioral intervention to teach job interviewing skills to adults with intellectual disability
Authors: Torres Ayse , Kearney Kelly B. , Brady Michael P. , Wood Jacqueline , Katz Joshua
Published: January 2021

BACKGROUND: Job interviewing serves a key function in the process of gaining employment. To date, no research has evaluated whether a literacy-based behavioral intervention (LBBI) might be used to improve the essential vocational skill of job interviewing. OBJECTIVES: The purpose of this study was to explore the effectiveness of a LBBI for the acquisition of job interviewing skills. METHODS: Using a combined experimental design (non-concurrent multiple probe across participants with an embedded A1B1A2B2 design) three young adults with intellectual disability who received an in-person and remote LBBI were evaluated on their correct and independent performance on a task analysis created for job interviewing. Generalization and maintenance were also assessed. RESULTS: The results showed that all three students mastered job interviewing skills with 100% accuracy and maintained the acquired skills after the intervention was removed. CONCLUSIONS: The study showed that LBBI is an effective tool to teach and practice job interviewing skills, and can be implemented face-to-face and virtually. Educators, vocational rehabilitation professionals, and families can use this tool in a wide range of settings.
Big data implementation for price statistics in Indonesia: Past, current, and future developments
Authors: Pramana Setia , Mariyah Siti , Takdir
Published: January 2021

The rapid development of Big Data as result of increasing interactivity with online systems between humans (e.g., online shopping, marketplace) and machine (internet of things, mobile phone, etc.) has led to a measurement revolution. This massive data if being mined and analyzed correctly can provide valuable alternative data sources for official statistics, especially price statistics. Several studies for using diverse Big Data as new sources of price statistics in Indonesia have been initiated. This article would provide a comprehensive review of experiences in exploiting various Big Data sources for price statistics, followed by the current development and the near future plans. The development of system and IT infrastructure is also discussed. Based on this experience, limitations, challenges, and advances for each approach would be presented.
Dual residual convolutional neural network (DRCNN) for low-dose CT imaging
Authors: Feng Zhiwei , Cai Ailong , Wang Yizhong , Li Lei , Tong Li , Yan Bin
Published: January 2021

The excessive radiation doses in the application of computed tomography (CT) technology pose a threat to the health of patients. However, applying a low radiation dose in CT can result in severe artifacts and noise in the captured images, thus affecting the diagnosis. Therefore, in this study, we investigate a dual residual convolution neural network (DRCNN) for low-dose CT (LDCT) imaging, whereby the CT images are reconstructed directly from the sinogram by integrating analytical domain transformations, thus reducing the loss of projection information. With this new framework, feature extraction is performed simultaneously on both the sinogram-domain sub-net and the image-domain sub-net, which utilize the residual shortcut networks and play a complementary role in suppressing the projection noise and reducing image error. This new DRCNN approach helps not only decrease the sinogram noise but also preserve significant structural information. The experimental results of simulated and real projection data demonstrate that our DRCNN achieve superior performance over other state-of-art methods in terms of visual inspection and quantitative metrics. For example, comparing with RED-CNN and DP-ResNet, the value of PSNR using our DRCNN is improved by nearly 3 dB and 1 dB, respectively.
DISTRIBUSI PARASITOID Ooencyrtus malayensis DI PERTANAMAN PADI SUMATERA BARAT: KANDIDAT PENGENDALI HAYATI WALANG SANGIT (Leptocorisa oratorius F.)
Authors: Maulina Fri , Muflihayati Muflihayati
Published: January 2021

Pemberdayaan  musuh alami hama seperti  parasitoid Ooencyrtus malayensis sebagai pengendali hayati walang sangit dapat meminimalisir penggunaan insektisida kimia dan  memiliki nilai positif yaitu mengendalikan hama pada stadia awal perkembangannya. Tujuan penelitian adalah: menentukan distribusi populasi parasitoid pada topografi Sumatera Barat yang berbeda, dan menentukan tingkat parasitisasi, dominansi dan mortalitas parasitoid tersebut. Pengambilan sampel telur walang sangit terparasit di lokasi padi sawah dengan metode stratifield sampling pada tiga ketinggian tempat yaitu: Sungai Sapih Kota Padang, Rendah (20 m dpl ), Tanjung Pati Kabupaten Limapuluh Kota, Sedang (500 m dpl), dan Kubang Putih Kabupaten Agam, Tinggi (975 m dpl). Sampel telur diamati di laboratorium untuk mengetahui telur yang terparasit oleh O. malayensis dan selanjutnya data dianalisis.  Hasil penelitian membuktikan bahwa distribusi parasitoid  O. malayensis lebih dominan pada lokasi lokasi dataran rendah selanjutnya dataran sedang sedangkan pada dataran tinggi tidak ditemukan.  Tingkat parasitisasi pada dataran rendah dan tinggi adalah 13% dan 6%. Sedangkan nilai mortalitas parasitoid O. malayensis pada dataran rendah dan tinggi adalah 17 % dan 33 %.  Dari penemuan ini disimpulkan bahwa parasitoid O. malayensis menyukai lokasi dengan ketinggian rendah dri permukaan laut dan dapat memparasitisasi telur walang sangit dengan tingkat serangan yang cukup tinggi.
PEMERIKSAAN KUALITAS BIJI SEBAGAI FAKTOR KEBERHASILAN PERBANYAKAN ANGGREK PADA PRAKTIKUM MAHASISWA DI LABORATORIUM KULTUR JARINGAN POLITEKNIK PERTANIAN NEGERI PAYAKUMBUH
Authors: Ghufriati Ghufriati
Published: January 2021

Tabur Biji Anggrek adalah salah satu materi praktikum yang diajarkan kepada mahasiswa Budidaya Tanaman Pangan dan Manajemen Pertanian. Masalah yang ditemukan yaitu rendahnya persentase  biji yang berkecambah setelah dilakukan penaburan biji dalam media agar, sehingga media dan bahan lainnya terbuang.  Penelitian ini bertujuan menemukan  solusi untuk meningkatkan keberhasilan perkecambahan biji dan pertumbuhan bibit anggrek yang ditanam secara kultur jaringan dalam praktikum Tabur Biji Anggrek. Penelitian dilakukan di Laboratorium Politeknik Pertanian Negeri Payakumbuh  pada bulan April 2017 sampai September 2019. Metode penelitian menggunakan Rancangan Acak Lengkap  dengan 3 perlakuan dan 2 ulangan. Data diambil dari hasil praktikum mahasiswa. Perlakuan A tanaman induk tidak terpelihara baik, tidak ada pemeriksaan kualitas biji, perlakuan B tanaman induk terpelihara, tidak ada pemeriksaan kualitas biji, dan perlakuan C tanaman induk terpelihara baik, 1 bulan sebelum panen dipelihara  dilaboratorium dan dilakukan pemeriksaan kualitas biji dengan mikroskop. Hasil terbaik didapat pada perlakuan C, dengan persentase perkecambahan biji sekitar 90%, setelah 9 bulan disimpan dalam botol kultur planletnya dapat disubkultur dan diaklimatisasi.
How Different Forms of Corruption Affect the Economy of Bosnia and Herzegovina: A Research Project
Authors: Komić Sabina , Tandir Nataša
Published: January 2021

Corruption is globally viewed as dishonest and illegal behavioral activity that has negative influence on the overall economic and social environment. The aim of this research paper is to identify and examine effects of bribery, fraud, and favoritism on the economy of Bosnia and Herzegovina (B&H). The research was conducted on the territory of B&H including two hundred economic experts. The objective was to collect participants’ opinions and experiences with corruption and its forms. Secondary data was extracted from books, journals, articles, and web pages. The findings show that majority of the participants encountered corruption but they did not report because they were mainly afraid of the illegal consequences they may face. The most widespread corruption form in B&H is bribery and the participants emphasized some of the effects of corruption on the economy such as uneven distribution of wealth, inefficient allocation of resources, lower growth rates, unfavorable business environment, demotivation of workers, slower process towards the European Union (EU) membership, etc. I concluded that as B&H needs more time to become EU member, it loses the opportunity to establish fair and efficient trade, higher EU protection, larger budget, etc. Also, I realized that there is a high presence of corruption in B&H which does not decrease from year to year and appears in both public and private sector. This also destroys the legitimacy of the state and the quality of public services as well as the economic growth of B&H.
National heterogeneity in the Russian regions: Assessment, change, impact on economic development
Authors: Bufetova A. N. , Kolomak E. A.
Published: January 2021

The paper provides quantitative estimates of national heterogeneity in the Russian regions, using indices of fractionalization and polarization, taking into account the linguistic distance between groups. The results showed that national heterogeneity in the period between the last population censuses in Russia as a whole did not increase, but there was a different and active dynamics in the regions. The content of the national structure in the country changed in the direction of bigger cultural distances between ethnic groups. Regression analysis of the relationship between national heterogeneity and output, budget expenditures, and crime rates showed more significant positive dependencies on the fractionalization index compared to negative correlations with the polarization index. In the situation of a relatively stable institutional environment in the country, national heterogeneity showed more active positive effects, while the potential for negative effects inherent in a polarized society did not find a sufficient basis to be realized.
Intelligence-based theory of the firm
Authors: Kleiner G. B.
Published: January 2021

This paper presents the main provisions of the intelligence-based theory of the firm, which is a new direction in studying microeconomic entities. The objects of the theory are firms, whose activities to a decisive extent depend on the capacity and efficiency of using the firm’s intellectual abilities. These abilities allow analyzing the structure and characteristics of the firm’s internal and external social and economic environment in space and time. Intelligence features as a leading factor of production in interaction with the firm’s mental abilities and material resources are investigated. The requirements for models reflecting the influence of intelligence on the firm’s performance in strategic and tactical aspects are determined. The types of intelligence are classified depending on its participation in the formulation and solution of the firm’s tasks. Perspective directions of development and application of the intelligence-based theory of the firm are outlined.
Strategic Mapping and Optimised Allocation of Automated External Defibrillators in Urban Areas
Authors: Despoina Kanteler , Evangelos Katsaros , Yiannis Bakouros
Published: January 2021

Background: Out-of-hospital cardiac arrest (OHCA) is a leading cause of death and is regarded as a significant public health issue. Immediate treatment with an automated external defibrillator (AED) increases OHCA patient survival potential. For AEDs to be used and fulfil their lifesaving potential, they need to be in close proximity to the victim and accessible at the time of a cardiac arrest. The current paper sheds light upon an optimized location-allocation method achieving full coverage with immediate accessibility in an urban context given a limited number of available AEDs for deployment using GIS. The case study is the Region of Western Macedonia (RWM) in Greece for a pilot AED placement program for the Governance of RWM. The focus of the current study is the capital city of RWM, Kozani. The initial number of the defibrillators (120) that are needed to be distributed is very small and cannot cover the needs for every major city or rural area in the region. Out of the 120 AEDs, the challenge is to find the minimum required number of AEDs to allocate in the city providing full coverage and accessibility. This paper focuses only on one city, however, the same methodology was applied to allocate AEDs in the other selected cities of the region. The rural dimension and methodology are not in the scope of this paper.

Methods: Road network data, spatio-temporal analysis of accessibility network, digital elevation model, land uses, population density, seasonal fluctuations and socio-demographic variables were used. GIS algorithms such as spatial analysis, kernel density, hot spot analysis, maximal covering location problem (MCLP) tests, proximity algorithms, buffer zoning, were a few of the tests made in order to find the most efficient positions and maximize coverage keeping in mind that access to an AED until defibrillation time must not exceed the time range of five minutes.

Results: optimised sites and allocated AEDs in urban areas we managed to achieve full city coverage with 17 AEDs. In every part of the city, people can have access to a nearby AED with its critical radius of less than or equal to 250m achieving defibrillation in the critical period of 5 minutes. The results are promising for the establishment and expansion of optimised AED deployment in cities.

Conclusions: The progress of the project must be monitored and there are still unresolved problems that need to be tackled to provide a robust allocation of future defibrillators. Further research to enhance our understanding on public access defibrillation and optimize the accessibility and functionality of the medical health care services is needed. A network of engaged and informed citizens ready to act is required for a successful public access defibrillation program.
IOT - Overview, Implementation and Upcoming Challenges
Authors: Kumar Sativilla Mohan , Manhar Advin
Published: January 2021

IoT is a chain of Physical Objects that are installed with sensors, software, and other technologies for the goal of connecting and transferring data with other devices and systems over the Internet. In many research, it has been found that the data and communication between the Internet of Things are insecure. Also, the data which is transferred from one end to the other end is accessible for a shorts distance. A discovered protocol for Data Integrity in IoT communication. A protocol for providing an environmental monitoring solution and a system that facilitates the practical experimentation of the IoT solutions. After the data is secured with the protocols and it has received an environment for the experiments, the message has to be sent over a long distance.
Quality of Services in Mobile Ad-Hoc Networks
Authors: Yadav Khushbu , Kumawat Bhawesh
Published: January 2021

QoS (Quality of Service) can be characterized as the capacity of the organization to offer various types of assistance to different sorts of organization traffic. It implies that the objective of QoS(Quality of Service) is to accomplish a more deterministic organization conduct so information conveyed by the organization can be better conveyed and the assets can be better used. A versatile specially appointed organization (MANET) comprises of portable hubs imparting over remote channels. Steering in MANETs is extremely testing because of the arbitrary portability of hubs and instability of remote channels. Hence the vast majority of the current directing calculations put forth simply the best attempt to discover courses for correspondence yet don't give any presentation ensure. Due to the broad utilization of MANETs continuously applications, it gets appropriate to give deterministic organization conduct. Nature of Service (QoS(Quality of service)) expects to shape the organization conduct and give execution ensures.
Mobile Cloud Computing Research – Issues, Challenges and Needs
Authors: Karthik Setti , Manhar Advin
Published: January 2021

With the rapid advance of mobile computing technology and wireless networking, there is a significant increase of mobile subscriptions. This drives a strong demand for mobile cloud applications and services for mobile device users. This brings out a great business and research opportunity in mobile cloud computing (MCC). This paper first discusses the market trend and related business driving forces and opportunities. Then it presents an overview of MCC in terms of its concepts, distinct features, research scope and motivations, as well as advantages and benefits. Moreover, it discusses its opportunities, issues and challenges.
Furthermore, the paper highlights a research roadmap for MCC.
Importance of Big Data In Healthcare System A Survey Approach
Authors: Pavithra M. , Shamila E. S. , Priya G. Krishna , VijiPriya G. , Ashwini R.
Published: January 2021

‘Big data’ is massive amounts of information that can work wonders. It has become a topic of special interest for the past two decades because of a great potential that is hidden in it. Various public and private sector industries generate, store, and analyze big data with an aim to improve the services they provide. In the healthcare industry, various sources for big data include hospital records, medical records of patients, and results of medical examinations, and devices that are a part of internet of things. Biomedical research also generates a significant portion of big data relevant to public healthcare. This data requires proper management and analysis in order to derive meaningful information. Otherwise, seeking solution by analyzing big data quickly becomes comparable to finding a needle in the haystack. There are various challenges associated with each step of handling big data which can only be surpassed by using high-end computing solutions for big data analysis. That is why, to provide relevant solutions for improving public health, healthcare providers are required to be fully equipped with appropriate infrastructure to systematically generate and analyze big data. An efficient management, analysis, and interpretation of big data can change the game by opening new avenues for modern healthcare. That is exactly why various industries, including the healthcare industry, are taking vigorous steps to convert this potential into better services and financial advantages. With a strong integration of biomedical and healthcare data, modern healthcare organizations can possibly revolutionize the medical therapies and personalized medicine.
Survey on Live Tracking Phone No. Via Android/IOS Based App
Authors: Mishra Aman , Manhar Advin
Published: January 2021

Under my survey of “Live tracking phone no. via Android / IOS Based app” we
will get to see so many innovations that has been done so far. Through the
survey many approaches are introduced, but which one is the best and accurate
it is not decided yet. So, in this paper we have discussed which will be the
feasible app and convenient for all of us to track a cell no. via app. So, many
disparities you will notice about hardware and methods because technology
getting change on daily basis. Tracking a cell no. is possible but if we
investigate not accurate result it will yield us.
Discussion on the Differences between Theory and Practice in Vocal Music Teaching
Authors: Fu Lei
Published: January 2021

We are living in the best era. At present, the economy is growing steadily, and science and technology have driven the rapid development of all walks of life. Correspondingly, art education has received more and more attention from the society, and the teaching of vocal music has also received the attention and love of parents and students. With the continuous replacement of the development concept of the times, the methods of vocal music teaching are also constantly improving. From the transition from the teacher as the main body to the student as the foundation, the teaching emphasizes the development of students and pays more attention to changes in academic conditions, and pays more attention to the combination of theory and practice. And it will find out the difference between reality and theory based on the actual situation, make targeted analysis, find out the shortcomings, formulate a more scientific teaching method, improve teaching mode, improve teaching quality, so as to better improve students' vocal level . This article analyzes the differences between theory and practice in vocal music teaching, and proposes corresponding solutions for reference.
Lectinas como Biomarcadores de Tumores de Cavidade Oral: uma Revisão de Literatura
Authors: Silva Bruno Rocha da , Arruda Francisco Vassiliepe de Sousa , Carneiro Victor Alves , Cavalcante Theodora Thays Arruda , Aguiar Andréa Silvia Walter de , Nascimento Kyria Santiago do , Cavada Benildo Sousa , Teixeira Edson Holanda
Published: January 2021

Introdução: Com o advento de novas pesquisas abordando o processo neoplásico, um grupo peculiar de proteínas tem sido amplamente estudado, as lectinas. Estas proteínas possuem a capacidade de se ligarem de forma reversível a carboidratos com alta especificidade. Devido às alterações no padrão glicoproteico de superfície celular durante o processo neoplásico, as lectinas se tornam uma ferramenta potencial como biomarcadores de células neoplásicas. Objetivo: Investigar a produção científica da aplicação lectinas como biomarcadores de lesões neoplásicas e potencialmente neoplásicas da cavidade oral e analisar quais grupos de lectinas e lesões orais foram mais extensamente estudados, com o objetivo final de traçar o perfil dessas publicações. Método: Realizou-se uma pesquisa de artigos científicos integrando periódicos indexados na base de dados Science Direct, Pubmed e BVS. Os critérios de inclusão estabelecidos foram: Tempo – de 1981 a 2010; Descritores – “lectin” AND “binding” AND “oral” AND “tumor”; Resumo/abstract – língua inglesa. Foi obtido um total de 108 artigos. As publicações foram avaliadas e classificadas em categorias pré-estabelecidas, como número/tipos de lesões e número/tipos de lectinas analisadas. As variáveis estudadas foram correlacionadas e o teste Qui-quadrado foi aplicado. Resultados: Houve notadamente um crescimento de estudos utilizando lectinas como biomarcadores tumorais ao longo dos anos, em que a lesão mais amplamente estudada foi o carcinoma espinocelular e a lectina mais avaliada foi a Arachis hypogea (PNA). Conclusão: Pode-se concluir que a utilização de lectinas como ferramenta de diagnóstico é de crescente importância para a pesquisa em cancerologia devido à sua aplicabilidade, versatilidade e fidedignidade de resultados.
Public Policies for the Development of Agroecosystems Resilient to Climate Change
Authors: Mikery-Gutiérrez M.J. , Pérez-Vázquez A. , Martínez-Dávila J.P. , Ruiz-Rosado O. , García-Albardo J.C.
Published: January 2021

Objective: Analyze public policies in Mexico facing climate change in agriculture that allow the development of resilient agroecosystems.
Design/methodology/approach: An analysis of research on resilience to climate change in the agricultural and rural sectors, as well as analysis of literature on public policies formulated to climate change in the agricultural sector (period 2013-2019), was realized.
Results: Multiple sources of resilience for agroecosystems are present. Policies could be oriented to identify such sources and to strengthen capacities according to different scales and contexts. There is the possibility of considering factors associated with the evolution of these systems to employ strategies that are consistent and that allow coordination between political levels.
Limitations of the study/Implications: This is a theoretical study restricted to the available literature published until 2019.
Findings/Conclusions: Public policies require integrating the perspective of the dynamics of the complex agricultural system and the multiple sources of resilience at different scales and contexts, articulating the development of resilient agroecosystems to climate change.
Evolution of the Agri-Food Chain Concept in the 21st Century: The Taro Case
Authors: Parra-Melchor M.E. , Pérez-Vázquez A. , Arvizu-Barrón E.
Published: January 2021

Objective: To conceptualize the agri-food chain and analyze its evolution during the 21st century: The case of taro.
Design/methodology/approach: A systematic bibliography review was carried out in journals specialized in agri-food chains, value chains, logistics, and supply chains; these studies sustained qualitatively and based on a study case, the agri-food taro chain.
Results: Currently, the agri-food chains include processes such as the supply of inputs and necessary facilities, production, transformation, distribution, and commercialization, among other services. The study of agri-food chains has effects on globalization in a more demanding macroeconomic setting. The growing industrialization of products generates added value and provides a competitive advantage to the agents that integrate the chain. However, the agri-food malanga chain presents disadvantages in its production, distribution, and storage processes, due to the disintegration of its links.
Limitations of the study/implications: Scarce information exists on the malanga agri-food chain.
Findings/conclusions: The agri-food chain concept has had a continuous evolution. Its structure aims to benefit each one of the chain links; compromises are generated to produce based on need. The integration and experience gained allow the strengthening and importance assessment of each link, improving revenues. Also, agri-food chains´ incorporation makes them more sensitive to climate change, nutrition, and sustainability.
In vitro conservation of Vanilla planifolia hybrids in minimal growth conditions
Authors: Reyes Lopez Delfino , Hernández Leal Enrique , Castillo Martínez Carlos Roman , Avendaño Arrazate Carlos Hugo , Corona Torres Tarsicio , García-Zavala Jesús , Pascual  Ramírez Fermín
Published: January 2021

Objective: To maintain minimal growth in in vitro Vanilla planifolia hybrids.
Design/Methodology/Approach: Explants of seven interspecific hybrids of V. planifolia with different origin parents were used. The treatments consisted of different doses of mannitol and sucrose in the culture medium which varied from 0, 5, 10, 15, 20, 25 and 30 g L-1.The number of nodes, shoots and roots was recorded every 30 d for six months.
Results: 30 g L-1 mannitol and no sucrose in the culture medium allowed minimal growth in most of the hybrids. The higher the mannitol and lower the sucrose content, the length, number of between nodes, shoots and roots of the explants was lower (P?0.05).
Limitations of the study/implications: There is a differential behavior between the biological material and the used culture medium, particularly in hybrids, due to their new genetic combinations. Therefore, for their conservation, the culture medium components must be adjusted.
Conclusions: 30 g L-1 mannitol without sucrose in in vitro culture medium significantly reduces growth during 180 d in vanilla hybrids.
Chemical Composition and Digestibility of Six Species of Fodder (Fabaceae)
Authors: Sosa-Montes Eliseo , Mendoza-Pedroza Sergio Iban , Álvarez-Vázquez Perpetuo , Domínguez-Martínez Pablo Alfredo , Barcena-Gama Ricardo , Salazar-González Jessica Lorena
Published: January 2021

Objectives: To determine the chemical composition and in vitro digestibility of Acacia angustissima, Dalea spp., Desmodium spp., Leucaena leucocephala, Phaseolus vulgaris and Tephrosia vicioides (Fabaceae) fodder species.
Design/Methodology/Approach: Crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), crude lignin (CL), cellulose (Cel), hemicellulose (Hcel), cellular content (CC) and in vitro dry matter digestibility (IVDMD) were determined. The design was completely random with three repetitions. The variables were correlated by pairs and the means of the species were compared with Tukey’s test (P<0.05).
Results: Dalea spp. had the highest crude protein (17.7%), followed by A. angustissima (15.9%) and L. leucocephala (14.1%). A. angustissima (73.2%), Dalea spp. (74.9%) and P. vulgaris (77.5%) showed the highest IVDMD. L. leucocephala, Tephrosia vicioides and Desmodium spp. showed the lowest values of CP (14.1, 11.8 and 12.3%, respectively) and IVDMD (70.4, 70.2 and 64.9%, respectively). Desmodium spp. showed high levels of NDF (59.2%), ADF (41.4%), CL (17.5%), Cel (29.7%) and Hcel (17.8%) (P?0.05). IVDMD showed positive correlation with CC and negative correlations with NDF, CL, and Hcel (P<0.05).
Study Limitations/Implications: Desmodium spp. showed high content of CL and low values of CP and IVDMD, therefore supplements should be added when used in animal feed.
Findings/Conclusions: Dalea spp. showed low levels of lignin and high levels of protein and digestibility, making it posible to use as feed for ruminants
Size, imbibition, and viability of seeds of two creole melon (Cucumis melo L.) from the state of Guerrero, Mexico
Authors: Escobar-Álvarez José L. , Ramírez-Reynoso Omar , Sánchez-Santillán Paulino , Cuellar-Olalde Rocío , Romero-Rosales Teolincacíhuatl , Valenzuela-Lagarda José L.
Published: January 2021

Objective: To determine the physical and physiological characteristics of Creole melon seeds from the Costa Chica ofGuerrero.Design/Methodology/Approach: It was established under a completely randomized design, and Student’s t-tests (a=0.05) and correlation with Pearson’s test were performed. Viability and imbibition were carried out using the methodologies described by the International Seed Testing Association (ISTA).Results: Creole seeds of the two varieties presented a significant statistical difference (95% confidence level) in the physical quality variables. The imbibition ended at 18 and 32 h in V2 and V1, respectively, after being submerged in water. The humidity percentage was higher in V1 (7.19); while, V2 presented a higher percentage of germination and viability (96 and 90%, respectively). There is a positive association between the humidity and the physical dimensions of the seed and the germination and viability (r2=0.954) that is highly significant (P=0.003).Study Limitations/Implications: Morphological and taxonomic classification studies of the Creole genotypes of the Costa Chica region of Guerrero are required.Findings/Conclusions: There was a positive correlation between the physical and physiological quality of the Creole melon seeds.
Productive Performance of Alfalfa (Medicago sativa L.) at Different Age of Resprout in the Spring Season
Authors: Álvarez-Vázquez Perpetuo , Encina-Dominguez Juan Antonio , Ventura-Rios Joel , Hernández-Perez Armando , Flores-Naveda Alberto , Maldonado-Peralta Ramiro
Published: January 2021

Objective: To determine the growth and productive performance curves, to obtain the optimal cutting moment in alfalfa, depending on the age of resprouting, in the Spring season.Design/Methodology/Approach: The treatments were cuts at different age of the plant and the variables evaluated: Dry Matter Yield (DMY) Botanical and Morphological composition (BMC), Plant Height (PH), Leaf/Stem Ratio (L/SR), and Intercepted Radiation (IR). The stastical analysis was with the PROC GLM procedure, of the SAS software, and the adjustedcurves were obtained with the Curve Expert Professional 2.0 software.Results: There was an increase in the DMY, leaf, stem, PH, and IR, as the resprouting age advanced, but not, the L/SR which had an inverse behavior. The maximum DMY was obtained (4,768 kg DM ha-1) in week seven. There was a greater amount of leaf with average 52%, followed by the stem (36%), weeds (7%), detritus (4%) and inflorescence (1%). The PH washigher in week seven with 53 cm. Likewise, the highest IR in week tree with 86%. However, the L/SR was higher in week one with 2.4. The IR and L/SR presented the lowest R2 (0.90 and 0.93, respectively). In contrast, DMY and PH presented apositive relationship (R2 of 0.98 and 0.97, respectively).Study Limitations/Implications: There were no limitationsFindings/Conclusions: The productive performance of Premium variety alfalfa was variable depending on the resprouting age, in which the botanical and morphological characteristics changed, with better characteristics in the fifth week
Evaluation of the functionality of a constructed wetland system under semidesert and saline conditions
Authors: Rössel-Kipping Erich Dietmar , Gaytan-Saldaña Norma Angelica , Ortiz-Laurel Hipólito , Cisneros-Pérez Rodolfo , Cisneros-Almaza Rodolfo
Published: January 2021

Objective: Evaluate the functionality of a constructed wetland used to treat the wastewater from a school by recording water inflow and outflow, in addition to the local conditions that affect its operation and compliance with environmentalregulations.Design/methodology/approach: Verification of the installation specifications; programmed measurements of the inflowoutflowwater balance and ambient temperature; and analysis of the salinity effect and wetland performance.Results: The high evapotranspiration at the site contributed to the decrease in the resident volume of water within the wetland, causing water stress to the vegetation, not complying with the regulation about the reduction/elimination of water pollutants.Study limitations/implications: The high daytime temperature significantly decreased the daily inflow volume of wastewater, even after adding the precipitation water, which affects the biological activity of the vegetation; therefore, the study was performed on half of the wetland surface. Thus, the wetland was unable to reduce the pollutants to safe levels.Findings/conclusions: The amount of recovered treated water is minimal. The inflow is five times lower than the designed flow of the construction. The weekly log was appropriate to observe fluctuations in the water balance and its effect on the vegetation within the wetland.
Nature-based tourism as an alternative for sustainable development in the Altas Montañas de Veracruz region, Mexico
Authors: Pérez-Sato Juan A. , Rivera Hernández Jaime Ernesto , Alcántara-Salinas Graciela , Rivera-Hernández Jaime E. , Muñoz-Márquez-Trujillo Rafael A. , Zárate-Rodríguez Araís , Zalazar-Marcial Edgardo , Sánchez-Páez Ricardo , Castillo-González Luis A.
Published: January 2021

Objective: Determine the current state of nature-based tourism in the High Mountains Region of Veracruz, Mexico, by the analysis of participatory workshop results with most of the municipal tourism managers of the region.Design/methodology/approach: A participatory workshop took place, the “1st. Nature-based Tourism Forum of the Altas Montañas de Veracruz Region”, for which an evaluation instrument was elaborated. The questionnaire, called “Technical Sheet for the Diagnosis and Inventory of Touristic Initiatives”, was filled by the participants. During this participatory workshop, the region was divided into five subregions and participants worked in separate tables by subregion.Results: 106 consolidated projects were registered, 38 in process and 130 elements with tourism potential were identified; 53 problems that affect tourism in the region were also identified. A total of 123 people participated: 61 of them representing 32 municipalities, 16 were from seven municipalities, 12 represented five institutions and 34 people were organizers.Limitations of the study/implications: The greatest limitation faced by this project was the participation of all municipal authorities throughout the whole region.Findings/conclusions: Out of the 57 municipalities in the region 32 attended (more than 56%). The number of consolidated projects (106) is high, considering 44% of the municipalities were not present, which highlights that the majority are of thecommunity and private management. However, most of the projects in process aren organized by municipalities, which indicates their interest in tourism. Regard the elements with touristic potential in the region (natural and historical sites and traditions), the number registered was high (130). This is a consequence of the great biocultural wealth in the area, which can be developed and conserved through ecotourism.
Application of CA-Markov Model for the Analysis of Urban Growth in Gumel Town Jigawa State of Nigeria
Authors: Muhammad Lawan Ali Gumel , Khairul Amri Kamarudin Mohd , Alhaji Muhammad
Published: January 2021

The land use land cover change and its modeling approach has recently been considered by the scientific community to observe environmental changes. Remote Sensing and Geographical Information System (GIS) give major techniques which can be useful in the analysis at the town locale as well as the city levels. RS data from Thematic Mapper sensor of 1998, 2002, 2010, 2014, and 2018, Operational Land Imager of 2018 were used for the analysis. The study used a supervised classification technique for classification, and Cellular Automata Markovian (CA-Markov) Model analysis was used for future projection of 2038. The result shows that the projected the year 2038 with 0.9079 K-standard value of stimulation, the study further uses Maximum likelihood classifier (MLC) a supervised classification method to classify the images. The study reveals a continuous pattern of urban growth from 3.96 km2 in 2018 to 4.73 in 2038 in terms of settlement growth, dense vegetation has decreased from 11.73 in 2018 to 8.55 in 2038 also shrubland has decreased from 44.82 to 36.30, the last bare land has increased more than all the classes from 162.69 to 173.69. The findings of the present study are useful for planners and decision-makers in sustainable natural resource management.
Efektifitas Efektifitas Pendidikan Karakter melalui Metode Storytelling bagi Siswa Tingkat Menengah Atas
Authors: Istiani Nurul , Islamy Athoillah
Published: January 2021

The large number of delinquency phenomena of school students is one of the crucial problems that are the big responsibility of educational institutions. In this context, the embodiment of character values ​​in all forms of the learning process in schools is a necessary and important thing to always be emphasized. This study aims to see the effectiveness of the implementation of character education through the storytelling method for students at the senior secondary education level, such as vocational high schools (SMK). Given that so far the storytelling method is more dominant in middle and lower education students. This research is a qualitative research in the form of observation and interviews. The subjects in this study were students of SMK Negeri 3 Pekalongan. Meanwhile, the theory used as an analysis knife is the theory of Thomas Lickona and Tony R. Sanchez. This study concludes that character education through the storytelling method can attract students' attention and imagination in listening to and living the moral messages about ethical values ​​contained in storrytelling, especially if the story material is a factual story that comes from religious teachings or the life story of a scientist in field of student vocational concentration taken at the SMK.

Banyaknya fenomena kenakalan siswa sekolah merupakan salah satu masalah krusial yang menjadi tanggung jawab besar lembaga pendidikan. Dalam konteks ini, perwujudan nilai karakter dalam segala bentuk proses pembelajaran di sekolah menjadi hal yang perlu dan penting untuk selalu ditekankan. Penelitian ini bertujuan untuk melihat keefektifan implementasi pendidikan karakter melalui metode bercerita pada siswa jenjang pendidikan menengah atas seperti Sekolah Menengah Kejuruan (SMK). Mengingat selama ini metode bercerita lebih dominan pada siswa pendidikan menengah ke bawah. Penelitian ini merupakan penelitian kualitatif berupa observasi dan wawancara. Subjek dalam penelitian ini adalah siswa SMK Negeri 3 Pekalongan. Sedangkan teori yang digunakan sebagai pisau analisis adalah teori Thomas Lickona dan Tony R. Sanchez. Penelitian ini menyimpulkan bahwa pendidikan karakter melalui metode mendongeng dapat menarik perhatian dan imajinasi siswa dalam menyimak dan menghayati pesan moral tentang nilai-nilai etika yang terkandung dalam penceritaan, terutama jika materi cerita merupakan cerita faktual yang bersumber dari ajaran agama atau kisah hidup  seorang ilmuwan di bidang konsentrasi siswa SMK yang diambil di SMK.
The Verbal Configuration In Cell Ads Language (A Critical Discourse Analysis)
Authors: Bazergan Emma
Published: January 2021

The study is about the phenomena of The verbal configurationin Cell  ads language at describing the forms and meanings behind and the social factor caused. The object of the study is all cell ads in Makassar that have been introduced in media whether visual or non-visual. The study is descriptive in introducing Bourdieu’s social theory towards NourmanFairlough's CDA approach which declares the new prespective from both sides.
The Description and Meaninings of Proverbs To-Riolo of Buginese Tribe in South Sulawesi ( A Semantical Analysis )
Authors: Jannah Hariratul , Ratnawati Ratnawati , Fatimah Sitti
Published: January 2021

The is a scientific work which aims to explain about the meaning of proverbs to-riolo buginese tribe. This research is a qualitative research. The data collected by observation, interview and also research library. The scope of the research is in Watampone bone, South Sulawesi.Proverb to-riolo had four basic (1) bravery (2) wealth (3) honesty and (4) intelligence. The findings of this research after collected data and interviewed other about proverb to-riolo the writer can conclude that proverb to-riolo is a culture of buginese. This Proverb was way how to communication to others and apply the good attitude. The research is meant to preserve and provide additional knowledge and insights of classical literature in South Sulawesi