Chemistry Across Multiple Phases (CAMP) version 1.0: An integrated multi-phase chemistry model

A flexible treatment for gas- and aerosol-phase chemical processes has been developed for models of diverse scale, from box models up to global models. At the core of this novel framework is an "abstracted aerosol representation" that allows a given chemical mechanism to be solved in atmospheric models with different aerosol representations (e.g., sectional, modal, or particle-resolved). This is accomplished by treating aerosols as a collection of condensed phases that are implemented according to the aerosol representation of the host model. The framework also allows multiple chemical processes (e.g., gas- and aerosol-phase chemical reactions, emissions, deposition, photolysis, and mass-transfer) to be solved simultaneously as a single system. The flexibility of the model is achieved by (1) using an object-oriented design that facilitates extensibility to new types of chemical processes and to new ways of representing aerosol systems; (2) runtime model configuration using JSON input files that permits making changes to any part of the chemical mechanism without recompiling the model; this widely used, human-readable format allows entire gas- and aerosol-phase chemical mechanisms to be described with as much complexity as necessary; and (3) automated comprehensive testing that ensures stability of the code as new functionality is introduced. Together, these design choices enable users to build a customized multiphase mechanism, without having to handle pre-processors, solvers or compilers. Removing these hurdles makes this type of modeling accessible to a much wider community, including modelers, experimentalists, and educators. This new treatment compiles as a stand-alone library and has been deployed in the particle-resolved PartMC model and in the MONARCH chemical weather prediction system for use at regional and global scales. Results from the initial deployment to box models of different complexity and MONARCH will be discussed, along with future extension to more complex gas--aerosol systems, and the integration of GPU-based solvers.

Floral Arrangement Collaboration Sharpens Consumer Connection to Locally Grown Flowers

Our statewide floral design training program aimed to raise consumer awareness and appreciation of locally grown fresh flowers and to promote extension floral programs through delivery of workshops and demonstrations. Initially, trainees used artificial rather than fresh flowers, necessitating development of a streamlined floral design project plan. Through collaboration with three flower farmers, we developed a floral design prototype. Our growers produced the flowers based on this model and extension provided registration support and media that facilitated locally grown flowers use in workshops. As a result, we connected 47 consumers directly to our producers. Flower growers felt the project was worthwhile and desire future extension partnerships.

Extension Administrators’ Perspectives on Employee Competencies and Characteristics

Extension administrators discussed the competencies and characteristics of Extension professionals as they explored how Extension will need adapt to changing clientele, both in who they are and how they want to receive information. Extension education curriculum is not fully preparing future Extension employees in all required competencies, falling short on use of technology, diversity and pluralism, volunteer development, marketing, and public relations, risk management, and the community development process. Additionally, the Extension educator workforce development pipeline is not preparing a demographically representative population, leaving state administrators struggling to hire prepared professionals, especially those with in-culture competency (e.g., racial and ethnic minority and urban).

4-H Youth Development Programming in Indigenous Communities: A Critical Review of Cooperative Extension Literature

A literature review was conducted using the key words relating to Native American Youth and 4-H to assess the current state of 4-H youth programming serving First Nation/ Indigenous populations to inform future Extension initiatives. A systematic and qualitative review determined what level of focus the conducted programming efforts placed on broadly accepted elements of cultural identity as noted in the Peoplehood Model. A very small number of articles (N=13) were found pertaining to 4-H and Indigenous Communities. Fewer demonstrated emphasis on the peoplehood elements of language, place, traditional ceremony or calendars, and history. This work investigates a continuing inequity in 4-H PYD–both in service and reporting–and suggests some next steps for creating a more inclusive 4-H program for Native American/First Nation/Indigenous youth.

An investigation into the impact of unmanned aerial vehicles on soundscape perception in urban and rural environments

It is predicted that urban air mobility, including the use of small to medium sized unmanned aerial vehicle (UAV) delivery systems, will be introduced into cities across the globe within the next 15 years. It is known, however, that noise is one of the main limiting factors for the wider adoption of these vehicles. Neither the metrics nor the methods used for conventional aircraft seem to be optimal for this novel source of noise. This research will aid in developing suitable psychoacoustic methodologies and metrics, specifically designed to quantify community noise impact of these vehicles. This paper describes a psychoacoustic experiment used to gather participant responses to UAV sound recordings, both isolated and with typical background noise in a diversity of soundscapes. Results from this psychoacoustic experiment will be used to correlate perceptions of UAV noise with objective sound quality metrics, and build new regression relationships that could describe the impact of a given UAV on the perception of soundscape environments. Future extension to the research may include evaluating the differences in psychoacoustic responses when introducing more accurate reproduction methods, such as virtual reality systems, and how these could be incorporated into a standardised human response measurement procedure.

Simulation of a Stand-alone Hybrid PV-Diesel Systems for Critical Island Loads

Micro-grid is an effective solution to increase the power distribution reliability by using renewable energy sources or hybrid with a diesel generator. In this research, a hybrid energy system using a solar power system designed for extraction of 100 kW at peak power, at standard condition 1000 W/m2 and 25 ˚C with a diesel generator designed 500 KVA at peak power is simulated for a standalone microgrid utilities. For extraction maximum power, the duty ratio of a converter is adjusting based on the specific value of maximum power point (MPP) voltage of the PV array. Thus, the DC voltage of the inverter side is kept constant to meet the grid specifications, e.g. 400 V and 50 Hz. The PV array is modelling by nonlinear equations which describe the effect of real irradiance levels for the Western Desert in Egypt on DC voltage. The solar power system is designed in an actual location with a diesel generator, supplying a three-phase load of about 300 KW contain 60 KW of critical police loads and 240 KW of normal police loads. Due to the fluctuations in solar irradiance, load sharing between the PV system and the diesel generator is controlled. The load sharing is verified numerically by the Newton-Raphson method for a three-bus ring distribution system. Numerical and simulation results show the capability of the designed PV system to share the load with the diesel generator over the year.The proposed system helps to achieve security and stability, especially in border and remote places due to the high cost of connecting these places with the public network, as well as the difficulty of maintaining diesel generators and delivering fuel. Due to the sunny climate of the Western Desert in Egypt, so the hybrid energy system with any renewable sources helping in increase generation capacity for any future extension loads power requirements without increase the storage units of diesel generator, reduce maintenance of diesel generator, increase the lifetime of diesel generator, helping to keep the environment clean, maintains reliable electricity to the consumer and can be portable from place to another without any additional cost. The proposed system helps to achieve security and stability, especially in border and remote places due to the high cost of connecting these places with the public network, as well as the difficulty of maintaining diesel generators and delivering fuel. Due to the sunny climate of the Western Desert in Egypt, so the hybrid energy system with any renewable sources helping in increase generation capacity for any future extension loads power requirements without increase the storage units of diesel generator, reduce maintenance of diesel generator, increase the lifetime of diesel generator, helping to keep the environment clean, maintains reliable electricity to the consumer and can be portable from place to another without any additional cost.

آليات تشكيل الوعي في ضوء السنة النبوية

تمثِّل قضية الوعي إحدى أبرز مفردات البناء العقلي للمنهج النبوي؛ ذلك لأنها قضية تحوي كنه الوجود الإنساني، وترسم خارطة لامتدادات هذا الوجود. ويهدف هذا البحث إلى الكشف عن سبل تشكيل وعي الإنسان بأنماطه المختلفة ذاتًا وزمانًا ومكانًا ومعرفة ولغة من خلال السنة النبوية، ليكون ذلك برهانًا من براهين احتواء الرسالة الخاتمة على مرتكزات الرشاد الإنساني. وقد استعملت في هذا البحث منهجين، وهما: المنهج الاستقرائي، والمنهج التحليلي، أما المنهج الاستقرائي فتتبعت من خلاله مواطن الاستدلال من السنة النبوية على موضوع البحث، وأما المنهج التحليلي فقمت من خلاله بتحليل هذه الأحاديث لاستخراج النتائج منها.وخلصت الدراسة إلى أنه كانت للسنة النبوية أساليبها المتنوعة في تشكيل الوعي الذاتي للإنسان من خلال تشكيل وعيه بأصل خِلْقته، وغاية خلقته، وحدود طاقته، وأن السة لنبوية أصَّلت للوعي الزماني من خلال الربط بين الزمن وبين الحركة الإنسانية، والربط بينه وبين التكاليف الشرعية، وبيان الأثر الإيجابي المترتب على استغلال الزمن والسلبي المترتب على الغفلة عنه. كما أبانت كيف أن السنة النبوية قد شكَّلت وعيًا مكانيًّا تُفَرِّقُ العقلية الإسلامية من خلاله بين إطار مكاني وآخر، وكان من دوائر هذا الوعي الربط بين المكان والحدث، والتنبيه على اختلاف الإطار الثقافي والاجتماعي لكل موطن من المواطن.كما أظهرت كيف أن السنة النبوية كوَّنت وعيًا لغويا من خلال الوعي بالمضامين الحضارية لمفردات اللغة، والتنبيه إلى المناط الاستعمالي، والأثر النفسي للغة. Awareness is one of the most fundamental elements of the rational construction in the prophetic scheme, as it expresses the essence of the purpose of human existence on the planet earth and shapes it future extension. This research aims to underline ways of the formation all kinds of human awareness in the perspective of the Sunnah and it will then focus on presenting how this would be a proof of the evidence that the God’s final message contains the basics of human guidance. A mix of deductive and analytical method was used to trace the points of inference from the Prophetic sunnah on the topic and several hadiths were quoted and analysed for the result extractions. The research resulted in the conclusion that the prophetic Sunnah had various methods of forming the self-awareness of the human being. The Prophet enlightened that if human being reflecting the origin of his creation, the purpose of his creation, and the limits of his energy, the awareness consequently be formed. Furthermore, the prophetic tradition was rooted in temporal consciousness by linking time and human movement. The link between temporal consciousness with the shariah obligation explains the positive impact of the time exploitation and the negative consequences of neglecting those obligations. On the other, the prophetic tradition also illuminates the formation of special awareness in which the Islamic mentality differentiated between the framework of one place and another. Among the circle of this awareness was the link between place and event, and alerting the difference of cultural and social context for each people. Finally, this study also shared how the prophetic sunnah formed a linguistic awareness through the cultural implications of the language, the alertness or cognition of the person to the areas of its function, and the psychological impact of language.

Activity Classification Using Backpropagation Neural Networks for the Daily Lives of the Elderly

Activity Analysis Systems or Activity Recognition Systems for the elderly is recently a part of the smart home systems design. This assisted system normally helps the senior people to live alone in a house, safely and improve a quality of life. Therefore, learning to recognize which activities are safe is necessary for classifying the activities of the elderly. This information will give the researchers in the assistive technology some insights to understand the basic daily lives of the elderly. Moreover, it is also help the caregivers to monitor activities of the senior people while they live alone in the house. In this paper, the novel method for detecting and recognizing the activities using Backpropagation Neural Networks has been proposed. The proposed model was tested on a set of basic daily activities (lie, stand, sit, walk and dine). The proposed model was trained to construct the Backpropagation Neural Networks model and used the trained model to classify basic daily activities of the elderly. The proposed model gives the results of 0.78, 0.72 and 0.74 of precision, recall and F1 score, respectively. The discussion and future extension are also given in this paper.

Determining the Maximum Rate of Potassium Fertilizer on Oil Palm (Elaeis guineensis Jacq.) in Production in Southeastern Côte d'Ivoire

In the southeastern of Côte d'Ivoire, ferralsols are characterized by poverty in exchangeable bases, especially potassium, which appears to be the predominant mineral element for oil palm cultivation. In this study, we used improved palm cultivars treated with different rates of potassium fertilizer to determin the effect on oil palms. The experiments were conducted on the CNRA station in La Mé and PALMCI in Ehania (Côte d’Ivoire), following a system block system design comprising of five treatments and four repetitions. Treatments included 5 rates of potassium fertilizer (T1, T2, T3, T4, T5) corresponding to 1; 1.5; 2; 2.5; 3 kg of KCl/tree/year. This study indicates that the different rates of KCl applied, had influence on all of the experimental parameters, namely: yields (TR) and its components (NR; PR and PMR). Yields on the Ehania plantation were significantly higher than those on La Mé. Yield ranged from 18.8 Tons/ha/year (T1) to 22.1 Tons/ha/year (T3) in La Mé, and from 21.2 to 25.6 tons/ha/year in Ehania. The theoretical maximum rates were 2.4 kg of KCl/tree/year in La Mé, compared to 1.9 kg/tree/year on the Ehania plantation. Therefore, these rates will be used in the future extension of potassium fertilizer, in the cultivation of oil palm, in the southeastern of Côte d'Ivoire.

The organizational impact of Covid-19 crisis on travel perceived risk across four continents

PurposeIt became a fact, and the world's countries went under confinement due to the pandemic of the Covid19. There are severe impacts on tourism with the supply chain experiencing a full pause. This research investigates the influence of governance, media coverage, crisis severity, former travel practice and Covid-19 incidences on the perceived risk related to travel and tourism during the pandemic and in cross-countries.Design/methodology/approachWe collected the data from a sample of 1845 individuals from more than 12 countries and four continents representing quarantined and most impacted areas in the world in March and April 2020. A multilevel linear model was applied to predict the perceived risk across countries as a level 2 research unit.FindingsThe finding confirms the clustering in the data with media coverage, governance and crisis growth affecting the outcome. There are cross-level interaction effects, as the growth rate of the pandemic per country and media coverage impact tourists' perception of risk. Finally, there are lower-level direct effects, with lower-level variables affecting tourists' perceived risks.Research limitations/implicationsThe survey is randomly administered online due to the nearly complete quarantine implemented in the studied areas. Besides, and considering the latter, the responses might have been subjective due to the non-containment of the crisis by the study's time, directing to possible alteration of feelings and responses from respondents. This leads to suggest a future extension of this research, similarly, post-crisis.Originality/valueThis research pinpointed the impacts of predictors, concerning the countries' level, during the crisis phase on the perceived risk. Therefore, it gives insights into professional bodies on future concerns to be considered during the recovery phase.