Numerical Investigation of Bioaerosol Transport in a Compact Lavatory

The lavatory is a fertile area for the transmission of infectious disease through bioaerosols between its users. In this study, we built a generic compact lavatory model with a vacuum toilet, and computational fluid dynamics (CFD) is used to evaluate the effects of ventilation and user behaviors on the airflow patterns, and the resulting fates of bioaerosols. Fecal aerosols are readily released into the lavatory during toilet flush. Their concentration rapidly decays in the first 20 s after flushing by deposition or dilution. It takes about 315 s to 348 s for fine bioaerosols (<10 µm in diameter) to decrease to 5% of the initial concentration, while it takes 50 and 100 µm bioaerosols approximately 11 and <1 s, respectively, to completely deposit. The most contaminated surfaces by aerosol deposition include the toilet seat, the bowl, and the nearby walls. The 10 µm aerosols tend to deposit on horizontal surfaces, while the 50 and 100 µm bioaerosols almost always deposit on the bowl. In the presence of a standing thermal manikin, the rising thermal plume alters the flow field and more bioaerosols are carried out from the toilet; a large fraction of aerosols deposit on the manikin’s legs. The respiratory droplets generated by a seated coughing manikin tend to deposit on the floor, legs, and feet of the manikin. In summary, this study reveals the bioaerosol dilution time and the easily contaminated surfaces in a compact lavatory, which will aid the development of control measures against infectious diseases.

Fatigue in radiology: a fertile area for future research

Fatigue in radiologists may be responsible for a large number of medical errors. This review describes the latest research on fatigue in radiology. This includes measurement methods, and recent evidence on how fatigue affects accuracy in laboratory test conditions and in clinical practice. The extensive opportunities for future research in the area are explored, including testing interventions to reduce fatigue-related error, and further understanding of which fatigue measures correlate with errors. Finally we explore the possibility of answering these questions using large population-based observational studies and pragmatic integrated randomised controlled trials. This publication is the reprint with Russian translation from original: Taylor-Phillips S, Stinton C. Fatigue in radiology: a fertile area for future research. Br J Radiol. 2019;92:20190043. doi: 10.1259/bjr.20190043.

Quantitative traits under selection: derivations of distributions, higher moments, and the effects of recombination

The mathematical theory of quantitative traits is over one hundred years old but it is still a fertile area for research and analysis. However, the effects of selection on a quantitative trait, while well understood for the effects on the mean and variance, have traditionally been difficult to attack from the perspective of analyzing the probability density of the breeding values and deriving higher (third and fourth) moments as well as analyzing the impact of recombination. In this paper, the exact formula for the breeding value distribution after selection is derived and, using new integral tables, the first four moments are given exact expressions for the first time. In addition, the effects of recombination on the full distribution of breeding values are demonstrated. Finally, the changes of GXE covariance in the selected parent population caused by factors similar to the Bulmer Effect are also investigated in detail.

Manajemen Pemasaran Sayuran Hidroponik di Desa Sidodadi Kecamatan Garum Kabupaten Blitar

Sidodadi Village, Garum District is a fertile area that located 18 KM from the city. The majority of its residents work as farm laborers and sand miners. Almost all residents have yards that are left without any productive use. Natural conditions are still full of trees also cause the leaf litter that less conditioned. This is the idea for us to introduce an innovation in terms of land use and neglected organic waste, that is Hydroponic. The output of this activity is expected to be an additional economic source for local residents. In addition, it is also to make new job opportunities for local youth. The methods used are Explorative Survey, SWOT Analysis, Micro Teaching, Focus Discussing Group, Participatory Rural Appraisal and e-Mentoring. In its implementation, youth organizations is very enthusiastic. So the assistance and implementation process can run well and smoothly. The enthusiasm of the team and youth organizations in this activity succeeded in establishing two greenhouses with the installations. As well as making production and marketing designs which are the final determinants in this activity. The final result of this activity is the establishment of “Green Fresh” which is divided into production, marketing and publication divisions.Keywords: PHP2D, Strategy, Marketing, Hydroponic.Abstrak. Desa Sidodadi, Kecamatan Garum merupakan wilayah subur yang terletak 18 KM dari pusat kota. Mayoritas warganya bekerja sebagai buruh tani maupun penambang pasir. Hampir seluruh warga desa ini memiliki pekarangan yang dibiarkan tanpa ada pemanfaatan yang produktif. Kondisi alam yang masih dipenuhi pohon–pohon juga menyebabkan sampah daunnya yang berserakan kurang terkondisikan. Hal inilah yang memunculkan ide bagi kami untuk memperkenalkan sebuah inovasi dalam hal pemanfaatan lahan dan sampah organik yang tak terurus, yaitu hidroponik. Luaran kegiatan ini diharapkan dapat menjadi sumber ekonomi tambahan bagi warga setempat. Selain itu juga, untuk membuka lapangan kerja baru bagi pemuda setempat. Metode yang digunakan adalah Explorative Survey, SWOT Analysis, Micro Teaching, Focus Discussing Group, Participatory Rural Apprasial dan e-Mentoring. Dalam pelaksanaannya, karang taruna sangat antusias dengan apa yang kami sampaikan. Sehingga pendampingan dan proses pelaksanaan dapat berjalan dengan baik dan lancar. Antusias tim dan karang taruna dalam kegiatan tersebut berhasil mendirikan dua greenhouse lengkap dengan instalasinya, serta membuat desain produksi dan pemasaran yang merupakan penentu akhir dalam kegiatan ini. Hasil akhir kegiatan ini adalah berdirinya Green Fresh yang terbagi dalam divisi produksi, pemasaran dan publikasi.Kata Kunci: PHP2D, Strategi, Pemasaran, Hidroponik.

Bioenergetic Inhibitors: Antibiotic Efficacy and Mechanisms of Action in Mycobacterium tuberculosis

Development of novel anti-tuberculosis combination regimens that increase efficacy and reduce treatment timelines will improve patient compliance, limit side-effects, reduce costs, and enhance cure rates. Such advancements would significantly improve the global TB burden and reduce drug resistance acquisition. Bioenergetics has received considerable attention in recent years as a fertile area for anti-tuberculosis drug discovery. Targeting the electron transport chain (ETC) and oxidative phosphorylation machinery promises not only to kill growing cells but also metabolically dormant bacilli that are inherently more drug tolerant. Over the last two decades, a broad array of drugs targeting various ETC components have been developed. Here, we provide a focused review of the current state of art of bioenergetic inhibitors of Mtb with an in-depth analysis of the metabolic and bioenergetic disruptions caused by specific target inhibition as well as their synergistic and antagonistic interactions with other drugs. This foundation is then used to explore the reigning theories on the mechanisms of antibiotic-induced cell death and we discuss how bioenergetic inhibitors in particular fail to be adequately described by these models. These discussions lead us to develop a clear roadmap for new lines of investigation to better understand the mechanisms of action of these drugs with complex mechanisms as well as how to leverage that knowledge for the development of novel, rationally-designed combination therapies to cure TB.

Efficacy of Top down audits and Community Monitoring

In this paper we survey the recent literature on top down audits and community monitoring. Whilein the case of top down audits the efficacy of audits depends on the type of punishment- electoral punishmentvs legal punishment, the literature finds that electoral punishment is less effective than legalpunishment. Moreover, electoral punishment depends on whether voters are aware of audit reports.The type of service being audited - the opportunity for corruption and the clarity of rules and regulationseffect the success of audits. However, even when top down audits succeed in cutting down corruption,they may not always lead to better outcomes. Social audits are effective when collective actionproblems are less salient e.g. when groups are homogeneous, when the design is such that communityparticipants feel empowered e.g. through elections to the monitoring committee, information is notuseful by itself unless accompanied by tools to influence outcomes, and finally there is not a clear mapbetween finding corruption and improving ultimate outcomes. We suggest that a fertile area for futureresearch is the design of optimal audit schemes that take account of the opportunities for corruptionand the motivations of both the providers and the auditors.

Which Divergent Thinking Index is More Associated with Problem Construction Ability? The Role of Flexibility and Task Nature

Problem construction and divergent thinking (DT) are considered to be indicators of creative potential. Previous studies, with different goals, suggest a positive correlation between problem construction and DT. However, none of these works have explicitly examined which index of DT is more associated with problem construction. The current investigation examined the association between problem construction and three main indexes of DT: fluency, flexibility, and originality. It also tested whether such a relation differs based on task nature (verbal versus figural). The sample consisted of 90 sixth graders who completed three tests: (a) a verbal DT test, (b) a figural DT test, and (c) a problem construction test. Correlational analysis showed that flexibility was highly correlated with problem construction in the verbal DT test, whereas originality was highly correlated with problem construction in the figural test. The association between problem construction and verbal versus figural DT significantly differed in all DT indexes. This finding suggests that figural and verbal tasks assess DT in a different way, which was confirmed by a canonical correlation analysis. Finally, results of a multiple regression analysis showed that verbal DT significantly explained 59% of the variance in fluency scores in problem construction and 60% in originality scores in problem construction. Meanwhile, figural DT explained 8% to 9% of the variability in fluency and originality scores in problem construction. As suggested by experts in the field of problem construction, the role of flexibility in problem construction is a fertile area to be considered in future studies.

Syu'aib a.s dalam Perspektif Al-Qur'an

Syu'aib a.s is one of the prophets mentioned ten times in several surahs in the Al-Qur'an al -Karim. His full name is Syu'aib bin Maikiil bin Masyjur ibn Madyan, the son of Prophet Ibrahim a.s and his mother was the son of Prophet Lut a.s. He was sent to Ahlu Madyan who had deviated from the religion of Abraham a.s. Ahlu Madyan lives in a fertile area near the bay of Aqabah. Ahlu Madyan cheated on the scales and did damage to the face of the earth. When Syu'aib a.s delivered his message inviting Ahlu Madyan to return to the true religion, they refused the invitation with great arrogance and humiliation. Even asked Syu'aib to bring something down from the sky and asked Syu'aib a.s to stop preaching. If it doesn't stop they will take it out with the believers from their village. As a result of Ahlu Madyan's denial and arrogance, Allah lowered the heat for seven days, then brought a black cloud so that they took shelter under it. Ahlu Madyan thought it would rain. But Allah sent down a rain of fire and a strong wind so that all of them died lying in their homes. That is how Allah SWT destroyed Ahlu Madyan.AbstrakSyu’aib a.s adalah salah seorang nabi yang yang disebut dalam Al-Qur’an al –Karim sebanyak sepuluh kali dalam beberapa surat. Nama lengkapnya Syu’aib bin Maikiil bin Masyjur ibnu Madyan Anak Nabi Ibrahim a.s dan Ibunya adalah anak Nabi Luth a.s. Beliau diutus kepada ahlu Madyan yang sudah menyimpang dari agama Ibrahim a.s. Ahlu Madyan tinggal di sebuah wilayah yang subur dekat teluk Aqabah. Ahlu Madyan melakukan kecurangan dalam timbangan dan melakukan kerusakan di muka bumi. Ketika Syu’aib a.s menyampaikan dakwah mengajak Ahlu Madyan kembali kepada agama yang benar, mereka menolak ajakan tersebut dengan penuh kesombongan dan penghinaan. Bahkan meminta Syu’aib untuk menurunkan sesuatu dari langit serta meminta Syu’aib a.s untuk berhenti berdakwah. Jika tidak berhenti mereka akan mengeluarkannya bersama orang beriman dari desa mereka. Akibat dari keingkaran dan kesombongan Ahlu Madyan tersebut, Allah menurunkan kepanasan selama tujuh hari, kemudian mendatangkan awan hitam sehingga mereka berteduh dibawahnya. Ahlu Madyan menyangka hujan akan turun. Akan tetapi Allah menurunkan hujan api dan angin kencang , sehingga semua mereka mati bergelimpangan di rumah mereka masing-masing. Begitulah Allah SWT menghancurkan Ahlu Madyan

Information skills and library knowledge for higher education teachers

The explosion of information, not only in print, but in a digital context has become a fertile area for exploring, transmitting, and disseminating information, enabling learning and teaching, transforming and creating new knowledge. Higher education teachers need to be aware of how to train and guide their students in multiple ways to knowledge, including the ability to deal with information in print and digital contexts, so information literacy training should be a priority. This paper aims to list the skills to be developed by these teachers, preferably integrated into their professional development. Starting from the framework of tried-and-tested models, a flexible and comprehensive content structure is proposed, considering the need for their transfer to students. The importance of collaborative work with higher education libraries is stressed.

Identification of Pollen Characteristics as Apis cerana Feed Sources in Honeycomb, in Serang Purbalingga

Serang Purbalingga village is a fertile area and has the potential for the development of Apis cerana honeybee business. Honeybee products are known to have high economic value. The development of honeybee business will be better if supported by the avaibility of pollen from flowering plants as feed sources. Pollen that use to be A. cerana feed sources are taken from plants flower around the beehive and matched with pollen inside honeycomb. The purpose of this research is to determine the diversity and character of pollen from plants found around beehive and inside A. cerana honeycomb. This research conducted by descriptive survey method where the data obtained from field used as material for analysis and describing the characteristics of pollen found. Variable in this research is pollen characters with parameters are pollen units, size, shape, apertures and ornamentation. Based on results, there are 23 species of plants included in 17 families found around the beehive with varying of pollen shape, namely spheroidal, prolate-spheroidal, sub-prolate, and prolate. The smallest to largest pollen sizes are minutae, mediae, and magnae. Types of pollen ornamentations are rugulate, reticulate, echinate, psilate, scabrate, to baculate. Pollen apertures are varies monosulcate, monoporate, tricolporate, tricolpate, tetracolpate, hexacolpate to syncolpate. Pollen characters inside honeycomb are identical to 12 pollen of plant species found around the beehive where the pollen shape are spheroidal, prolate-spheroidal, sub-prolate and prolate. There are several types of ornamentation, namely reticulate, rugulate, echinate, psilate and sacbratte. Apertures are varies from monosulcate, monoporate, tricolporate, tricolpate to syncolpate. Key words : Apis cerana, characters,diversity, pollen, Purbalingga