A comparison of the responses of mature and young clonal tea to drought.

To assist commercial producers with optimising the use of irrigation water, the responses to drought of mature and young tea crops (22 and 5 years after field planting respectively) were compared using data from two adjacent long-term irrigation experiments in Southern Tanzania. Providing the maximum potential soil water deficit was below about 400-500 mm for mature, and 200-250 mm for young plants (clone 6/8), annual yields of dry tea from rainfed or partially irrigated crops were similar to those from the corresponding well-watered crops. At deficits greater than this, annual yields declined rapidly in young tea (up to 22 kg (ha mm)-1) but relatively slowly in mature tea (up to 6.5 kg (ha mm)- 1). This apparent insensitivity of the mature crop to drought was due principally to compensation that occurred during the rains for yield lost in the dry season. Differences in dry matter distribution and shoot to root ratios contributed to these contrasting responses. Thus, the total above ground dry mass of well-irrigated, mature plants was about twice that for young plants. Similarly, the total mass of structural roots (>1 mm diameter), to 3 m depth, was four times greater in the mature crop than in the young crop and, for fine roots (<1 mm diameter), eight times greater. The corresponding shoot to root ratios (dry mass) were about 1:1 and 2:1 respectively. In addition, each unit area of leaf in the canopy of a mature plant had six times more fine roots (by weight) available to extract and supply water than did a young plant. Despite the logistical benefits resulting from more even crop distribution during the year when crops are fully irrigated, producers currently prefer to save water and energy costs by allowing a substantial soil water deficit to develop prior to the start of the rains, up to 250 mm in mature tea, knowing that yield compensation will occur later

The Role of Local Government Authorities in Facilitating Land Access for Small and Medium Tourism Enterprises Growth in Tanzania

The sustainable development of tourism destinations relies much on Small and Medium Tourism Enterprises found within Local Government Authorities (LGAs). However, tourism destinations have recently being experiencing an increase of population and social economic activities. This situation creates more demand of the land among stakeholders in particular tourism business. Contrary to lager tourism companies Small and Medium Enterprises(SMTEs) has found to be in a less advantageous position in acquiring land from destination which impairing their growth. Thus, land at the destinations is often regarded as one of the constraints for tourism development. The purpose of this study therefore was to examine the role of Local Government authorities in facilitating land management in tourism destinations particularly considering the effects upon the SMTEs growth.  The study was guided by stakeholders’ theory. Using census survey design 232 questionnaires were collected from SMTEs owners/managers at Mto wa Mbu ward in Monduli District. Multiple linear regression was used to determine the relationship between the dependent variable, SMTEs growth and five independent variables. The results strongly confirm the put forward hypothesis “Local government Authorities role in facilitating management of land interests has statistically positive influence on SMTEs growth”, Moreover, five independent variables: land committee, by- law, land allocation, land law and Land policy have statistically significant impact on the growth of small business. Therefore, the theoretical and practical implications of this study refer to stressing the need and important role of LGA’s in managing stakeholders land interests for local tourism that can stimulate the growth of small business within the destination. The study recommends empowerment of Local government Authorities in terms of legal framework to be part in the management regime of local tourism for sustainable development. Keywords: Tourism, SMTEs growth, land policy, Land allocation DOI: 10.7176/JAAS/67-04 Publication date:August 31st 202

Silicosis and silicotuberculosis among respiratory hospital admissions: A cross-sectional survey in northern Tanzania

Background. There is little evidence describing respiratory disease among 40.5 million small-scale miners worldwide. Objectives. To describe the prevalence and clinical characteristics of adult respiratory inpatients with silicosis and silicotuberculosis in a tertiary hospital in Tanzania that serves a small-scale mining region. Methods. In this retrospective, cross-sectional survey, patient files from admissions between 2010 and 2020 were opportunistically selected and included if a respiratory diagnosis had been made. Results. Of 223 patients with respiratory conditions, 32 (14.3%; 95% confidence interval (CI) 10.0 - 19.6) were diagnosed with silicosis and 17 (7.6%; 95% CI 4.5 - 11.9) with silicotuberculosis. Mining was the most frequent occupation in those with silicosis (n=15/32; 46.9%) and silicotuberculosis (n=15/17; 88.2%). Of those with silicosis or silicotuberculosis, 26/49 (53.1%) were aged <45 years. Conclusion. Our study suggests that silicosis and silicotuberculosis are common among male and female respiratory inpatients with occupational exposure. The study highlights the role of occupational exposures in respiratory disease in developing economies

Phytochemical study and evaluation of the antiviral activity of aqueous extracts of three medicinal plants; Xylopia aethiopica, Gliricidia sepium and Ocimum gratissimum used in Cote d'Ivoire

Background: The present work is part of the exploration of new antiviral molecules to combat antimicrobial resistance. In purpose, this study determined the phytochemical analysis, cytotoxicity and antiviral activity of extracts from three Ivorian medicinal plants; Gliricidia sepium, Ocimum gratissimum and Xylopia aethiopica against poliovirus 1, a non-enveloped RNA virus. Methodology: Aqueous extract of the three plants, which were identified at the herbarium of National Floristic Center Abidjan, was done using a previously described method. The precipitation or staining technique was used to highlight the chemical groups in the three extracts while the polyphenol content of each extract was assessed by the colorimetric method. Cytotoxicity and antiviral activity tests were performed in 96-well plates. Cytotoxicity of each extract on L20B (a genetically engineered mouse cell line) was determined by observation of the cell line carpet. Antiviral activity of three extracts against poliovirus type I was determined after 72 hours using an assay that measures inhibition of the cytopathic effect on cell culture. Results: The three plant extracts contain polyterpenes, sterols and polyphenols, flavonoids, catechetical tannins, saponosides and quinones but none of the extract contains gallic tannins. With the exception of O. gratissimum, alkaloids were found in extracts from the two other plants, and extract of G. sepium was richer in polyphenol than the other two extracts. The cell carpet of L20B after 72 hours contact period with three extracts remained intact at concentrations ranging from 2 to 1000 μg/ml. The aqueous extract of G. sepium showed higher antiviral activity on poliovirus 1 (74.569%) at 2µg/ml than the extracts of O. gratissimum (45.6112%) and X. aethiopica (44.5247%) after 72 hours of incubation. Conclusion: The extract of G. sepium showed potent antiviral activity against poliovirus 1 than that of O. gratissimum and X. aethiopica. This was justified by its higher polyphenol content than the two extracts

PELATIHAN PEMBUATAN GERABAH SEMPE-BALANGA DI NEGERI OUW, KABUPATEN MALUKU TENGAH

Sempe-balanga is a traditional craft that has existed long ago in Ouw and has become a culture in this country.&nbsp;&nbsp; The pottery craftsmen made many changes so that this pottery became&nbsp;&nbsp; more and more known.&nbsp; the lack of interest in women in the country to develop pottery crafts is one of the limiting factors.&nbsp; The purpose of this training is to increase the interest and participation of women to pursue these skills to make these products a source of family income.&nbsp; The training method used is collection through interviews, while the craft development strategy is literature study, observation, and interview. The results of the training showed that many women in this country were interested in learning the culture of sempe-belanga, porna and kenda/plat, and tajela.&nbsp; In addition, there are variations of pottery craft products such as flower pots, wall hangings, angglong, and so on, also given during the trainin

Evolocumab and lipoprotein apheresis combination therapy may have synergic effects to reduce low-density lipoprotein cholesterol levels in heterozygous familial hypercholesterolemia: A case report

A 49 years old woman (weight 68 kg, BMI 27.3 kg/m2 ) with heterozygous familial hypercholesterolemia (HeFH) and multiple statin intolerance with muscle aches and creatine kinase elevation, presented at the Outpatient Lipid Clinic of Verona University Hospital in May 2015. Hypercholesterolemia was firstly diagnosed during adolescence, followed in adulthood by a diagnosis of Cogan's syndrome, a rheumatologic disorder characterized by corneal and inner ear inflammation. No xanthomas, corneal arcus, or vascular bruits were detectable at physical examination. Screening for macrovascular complications did not reveal relevant damages. Ongoing medical therapy included salicylic acid, methylprednisolone, methotrexate, and protonic-pump inhibitor. In the absence of specific lipid-lowering therapy, plasma lipid levels at first visit were: total-cholesterol\u2009=\u2009522 mg/dL, LDL-cholesterol\u2009=\u2009434 mg/dL, HDL-cholesterol\u2009=\u200984 mg/dL, triglycerides\u2009=\u2009120 mg/dL, Lp(a)\u2009=\u200913 mg/dL. On December 2015, evolocumab 140 mg sc every 2 weeks was initiated. After a 24-week treatment, the LDL-cholesterol levels decreased by an average of 21.2% to 342\u2009\ub1\u200922 mg/dL (mean\u2009\ub1\u2009SD). On May 2016, LDL-apheresis (H.E.L.P.system) was started as add-on therapy. Compared to the average levels obtained during the evolocumab monotherapy period, the LDL-cholesterol was reduced by 49.4%, thus reaching an inter-apheresis level (mean\u2009\ub1\u2009SD) of 173\u2009\ub1\u200937 mg/dL. This report suggests that a combination therapy with evolocumab and lipoprotein-apheresis may have synergic effects on circulating lipid levels. Its relevance as a highly effective treatment option for hyperlipidemia in HeFH patients warrants further investigation in larger datasets

A new ghost cell/level set method for moving boundary problems:application to tumor growth

In this paper, we present a ghost cell/level set method for the evolution of interfaces whose normal velocity depend upon the solutions of linear and nonlinear quasi-steady reaction-diffusion equations with curvature-dependent boundary conditions. Our technique includes a ghost cell method that accurately discretizes normal derivative jump boundary conditions without smearing jumps in the tangential derivative; a new iterative method for solving linear and nonlinear quasi-steady reaction-diffusion equations; an adaptive discretization to compute the curvature and normal vectors; and a new discrete approximation to the Heaviside function. We present numerical examples that demonstrate better than 1.5-order convergence for problems where traditional ghost cell methods either fail to converge or attain at best sub-linear accuracy. We apply our techniques to a model of tumor growth in complex, heterogeneous tissues that consists of a nonlinear nutrient equation and a pressure equation with geometry-dependent jump boundary conditions. We simulate the growth of glioblastoma (an aggressive brain tumor) into a large, 1 cm square of brain tissue that includes heterogeneous nutrient delivery and varied biomechanical characteristics (white matter, gray matter, cerebrospinal fluid, and bone), and we observe growth morphologies that are highly dependent upon the variations of the tissue characteristics—an effect observed in real tumor growth

The Freedoms and Capabilities of Farm Animals: How Can Organic Husbandry Fulfill Them?

Organic farming promotes animal husbandry practices that consider the welfare of the animals on the farm. The concept of animal welfare and the standards that should encompass this concept have in many cases been largely generalised in practice, which leaves relevant aspects of animal freedom or capabilities insufficiently addressed. This chapter puts forth the prospect that the capabilities approach offers an appropriate practical platform by which to improve welfare in farm animals by meeting a wider range of their natural needs and abilities. The capabilities approach coupled with effective health planning could foster organic husbandry towards a more acceptable production system for farmers and consumers alike