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Borax is one of food additives that has been prohibited from being used by the Indonesian Government because it is dangerous to health. However, the fact is that borax has been widely added to several food products, such as skewered meatballs, school children’s snacks, bread, meatballs, tofu and crackers. Crackers containing borax is easily found in traditional markets. Short-term consumption of borax can cause various symptoms such as headache, fever, malaise, nausea or vomiting, pain in the upper abdomen and diarrhea. While long-term exposure to borax will have a more dangerous effect, which can cause stomach disorders, seizures to acute kidney failure which can lead to death. This paper reports a simple, easy and inexpensive test of borax content using a home-made turmeric paper on ten types of crackers purchased randomly in traditional market. The aim is that the borax content test can be carried out by anyone only by buying a few ingredients from the local market and pharmacy, and without the need to involve laboratory tests, but with accurate results when compared to laboratory tests. As a comparison, a flame test and a colour test on the borax content carried out in the laboratorium using the AOAC 18 ed. 2005 Official Method Boric Acid & Borates in Food 970.33 and the FI ed. V of 2014 General Identification Test Borat method A on Page 1423 was also completed. Among the 10 crackers tested, six of them were detected to contain borax. These results are very consistent with the laboratory test results. The performance of the home made turmeric paper is therefore reliable.

The research aimed to produce natural wrapping paper from banana (Musa Paradisiaca Linn.) peel waste with additive essentials oils. The method used in this research was alkalization. The delignification process is done with the use of NaOH 4% at the temperature of 100°C for 1.5 hours. Additive materials in the form of essential oils are added as a preservative and aroma agent, namely cinnamon oil, lemon oil, clove oil and lime oil respectively 2% and 3%. Chemical and physical properties of the produced papers are tested included water content (dry-oven method SNI ISO 287:2010), pH (SNI ISO 6588-1.2010), grammage (SNI ISO 536:2010) and brightness (SNI ISO 2470:2010). Testing results of each paper were compared with commercial wrapping paper. The result shows that the natural paper from banana peel waste with additive essential oil meets the standard of ISO 6519:2016 about Basic Paper for Laminated Plastic Wrapping Paper within the parameter of pH and water content. The paper produced also meet the standard of ISO 8218:2015 about Food Paper and Cardboard within the grammage parameter (high-grade grammage), except the paper with 2% lemon oil. The paper which is closest to the characteristic of commercial wrapping paper is the paper with the additive of 2% cinnamon oil, with pH of 6.95, the water content of 7.14%, grammage of 347.6 gram/m2 and the brightness level of 24.68%.

The part of Areca Palm (Areca catechu) that economical is the seed. It is commercially available in dried, cured and fresh forms, while the fibre is usually thrown away. Cellulose fibers from agricultural waste can be utilized as raw material for handicraft paper. Laboratory research showed that Areca palm fibre contained 70.2% of cellulose, 10.92% of water, and 6.02% of ash. This indicated that Areca palm fibre is very potential to be processed as handicraft paper. Handicraft paper is made of wastepaper or plants which cointain celluloce to produce rough-textured paper. In order to obtain preferred sensory quality of handicraft paper such as color, fiber appearance and texture as well as good physical quantity such as tensile strength, tear resistance and grammage, the addition of wastepaper to provide secondary fibre and sometimes adhesive are needed in making handicraft paper. Handicraft paper making was one alternative to treat the solid waste and to reduce the use of wood fiber as paper raw material. The aim of this study is to compare the two most famous method, i.e. Federer and Gomez Method, for calculate the number of replications. This study is preliminary research before do the research in order to get the best treatment to produce handicraft paper. The Gomez method calculates fewer replications than the Federer method. Based on data simulation the error generated using 3 replicates of 0.0876 while using 2 replicates of 0.1032.

In this paper, the study will be conducted to examine whether there is any communality among the marks obtained by B.Ed. examinees in various papers of this course since there are three major streams into which B.Ed. students are channelized.[1,2] The marks obtained by the examinees in three streams will be studied separately. The three streams are Arts, Commerce and Science even though the B.Ed. courses are open to all University graduates including B.Sc., Agriculture, B.E., B. Tech, M.B.B.S. However, there are few instances all over the country where B.E., B. Tech, M.B.B.S. degree holders seek and get admission in B.Ed. courses. Thus the marks obtained by B.Ed. examinees belonging to the three streams in 2016-17, 2017-18, 2018-19 in R T M Nagpur University were subjected to factor analysis. While discussing the scope of the present work, it is essential to mention that the factor analysis is one of the advanced procedures of statistical analysis of the data. The marks obtained by the examinees in each of the said streams for every year separately are factorially analyzed and interpreted.

Paper pulper machines a capacity of 83 litres/process must have a low-cost material, robust and safe to operate. Paper pulper machine components analysed are tubes, frames, helical screw shaft and the shaft holder. The method uses a static structural analysis to obtain von mises stress and displacement. Static structural analysis uses finite element analysis with the help of CATIA® Software. The safe component size and lowest cost (safety factor more than 2.5) were selected in this study. Calculation of costs by multiplying the size of the material needs by material prices. Tube components use SUS 304 with thickness variations of 0.5, 0.6, 0.8, 1, 1.5, and 2mm. Frame and shaft holder using L shape ASTM A36 size 40x40mm and 50 x50 mm with thickness variations of 3, 4, and 5 mm respectively. Variations in material size are determined based on standard material sizes available on the market. The simulation result of each component shows the thicker the material, the lower the von mises stress, the lower the displacement and the higher safety factor. Tubes with a thickness of 0.5mm have a von mises stress of 4.43 MPa, a displacement of 4.7 x 104 mm with SF 56.4 is safe and were chosen because of the lowest material costs (IDR 360,009). The frame size was chosen 40x40x3 mm based on the SF frame value (26) with the lowest material cost (IDR 197,800). The shaft holder is also chosen for the size of 40x40x3mm where the SF value (3834) and the lowest material cost (IDR 14,400). Helical screw shaft size is chosen at 0.5mm thickness where SF is 304 and material costs IDR 100,968. The overall results of the static structural analysis on various sizes of the paper pulper machine components showed ovon under Oyield, small displacement, and SF is safe.

In this letter, we investigate the population dynamics in a May-Leonard formulation of the rock-paper-scissors game in which one or two species, which we shall refer to as "weak", have a reduced predation or reproduction probability. We show that in a nonspatial model the stationary solution where all three species coexist is always unstable, while in a spatial stochastic model coexistence is possible for a wide parameter space. We find, that a reduced predation probability results in a significantly higher abundance of "weak" species, in models with either one or two "weak" species, as long as the simulation lattices are sufficiently large for coexistence to prevail. On the other hand, we show that a reduced reproduction probability has a smaller impact on the abundance of "weak" species, generally leading to a slight decrease of its population size -- the increase of the population size of one of the "weak" species being more than compensated by the reduction of the other, in the two species case. We further show that the species abundances in models where both predation and reproduction probabilities are simultaneously reduced may be accurately estimated from the results obtained considering only a reduction of either the predation or the reproduction probability., 6 pages, 7 figures, to appear in EPL

Fish ladders are structures that are designed and constructed at water barriers, such as dams, to assist fish to migrate and complete their life cycle between different habitats without interruption or delay. The design of the fish ladders is considered a complicated process. It depends on two essential aspects; the biological and environmental nature of the fish. Consequently, hydraulic parameters such as velocity, turbulent kinetic energy, and flow patterns have to be designed to suit the fish’s capabilities without affecting it. This study is dedicated to performing an overview of the design of one of the most common fish ladders, the vertical slot fish ladder. A brief on an empirical and numerical design method is presented first. Then, a review of the recent literature on the vertical slot fish ladder design is explored. From reviewing several works on the design of the vertical slot fish ladder, it was found that important design parameters, such as the velocity of the flow, the turbulence, the slope of the fish ladder channel, have already been investigated in previous studies. However, it was observed that other important parameters, such as the slot angle, have not been investigated or explored in the literature. It is predicted that this parameter has a vital influence on the velocity of the flow inside the fish ladder which controls all other design parameters.

Perron-Frobenius theorem describe five properties of irreducible nonnegative matrix. Leslie matrix is one of nonnegative matrix. Leslie matrix that used in this research is limited to the irreducible Leslie matrix. In previous research has been proven that irreducible Leslie matrix satisfies three properties in Perron-Frobenius theorem by spectral radius. This research completed the previous research, proving that irreducible Leslie matrix has a unique Perron vector and satisfies Collatz Wielandt formula. Leslie matrix is a primitive matrix. It is used to calculate the number of populations in the future. Growth of population is interpreted by value spectral radius of Leslie matrix.

The publishers of Physics in Medicine and Biology (PMB), IOP Publishing, in association with the journal owners, the Institute of Physics and Engineering in Medicine (IPEM), jointly award an annual prize for the best paper published in PMB during the previous year. The procedure for deciding the winner has been made as thorough as possible, to try to ensure that an outstanding paper wins the prize. We started off with a shortlist of the 10 research papers published in 2009 which were rated the best based on the referees' quality assessments. Following the submission of a short 'case for winning' document by each of the shortlisted authors, an IPEM college of jurors of the status of FIPEM assessed and rated these 10 papers in order to choose a winner, which was then endorsed by the Editorial Board. We have a clear, and very worthy, winner this year. We have much pleasure in advising readers that the 2009 Roberts Prize is awarded to E Z Zhang et al from University College London for their paper on photoacoustic tomography. In vivo high resolution 3D photoacoustic imaging of superficial vascular anatomy E Z Zhang, J G Laufer, R B Pedley and P C Beard 2009 Phys. Med. Biol. 54 1035–46 Our congratulations go to these authors. Of course all of the shortlisted papers were of great merit, and the full top-10 is listed below (in alphabetical order). Steve Webb Editor-in-Chief Simon Harris Publisher References Cheng Y-C N , Neelavalli J and Haacke E M 2009 Limitations of calculating field distributions and magnetic susceptibilities in MRI using a Fourier based method Phys. Med. Biol. 54 1169–89 Cho S, Ahn S, Li Q and Leahy R M 2009 Exact and approximate Fourier rebinning of PET data from time-of-flight to non time-of-flight 2009 Phys. Med. Biol. 54 467–84 Davidson S R H, Weersink R A, Haider M A, Gertner M R, Bogaards A, Giewercer D, Scherz A, Sherar M D, Elhilali M, Chin J L, Trachtenberg J and Wilson B C 2009 Treatment planning and dose analysis for interstitial photodynamic therapy of prostate cancer Phys. Med. Biol. 54 2293–313 Hand J W, Shaw A, Sadhoo N, Rajagopal S, Dickinson R J and Gavrilov L R 2009 A random phased array device for delivery of high intensity focused ultrasound Phys. Med. Biol. 54 5675–93 Johnson P, Lee C, Johnson K, Siragusa D and Bolch W E 2009 The influence of patient size on dose conversion coefficients: a hybrid phantom study for adult cardiac catheterization Phys. Med. Biol. 54 3613–29 Paganetti H 2009 Dose to water versus dose to medium in proton beam therapy Phys. Med. Biol. 54 4399–421 Pramanik M, Song K H, Swierczewska M, Green D, Sitharaman B and Wang L V 2009 In vivo carbon nanotube-enhanced non-invasive photoacoustic mapping of the sentinel lymph node Phys. Med. Biol. 54 3291–301 Schondube H, Stierstorfer K and Noo F 2009 Accurate helical cone-beam CT reconstruction with redundant data 2009 Phys. Med. Biol. 54 4625–44 Tang G, Earl M A and Yu C X 2009 Variable dose rate single-arc IMAT delivered with a constant dose rate and variable angular spacing Phys. Med. Biol. 54 6439–56 Zhang E Z, Laufer J G, Pedley R B and Beard P C 2009 In vivo high resolution 3D photoacoustic imaging of superficial vascular anatomy Phys. Med. Biol. 54 1035–46 For more information on this article see medicalphysicsweb.org

The rock—paper—scissors (RPS) game is a nice model to study the biodiversity in an ecosystem. However, in the previous studies only the nearest-neighbor interaction among the species was considered. In this paper, taking the long-range migration into account, the effects of the interplay between nearest-neighbor-interaction and long-range-interaction given by Levy flight with distance distribution lh (−3 ≤ h < −1) in the spatial RPS game are investigated. Taking the probability, exchange rate, and power-law exponent of Levy flight as parameters, the coexistence conditions of three species are given. The critical curves for stable coexistence of three species in the parameter space are presented. It is also found that Levy flight has interesting effects on the final spatiotemporal pattern of the system. The results reveal that the long-range-interaction given by Levy flight exhibits pronounced effects on biodiversity of the ecosystem.

This special issue of Journal of Physics A: Mathematical and Theoretical is dedicated to Darryl Holm on the occasion of his 60th birthday. The papers were largely drawn from the lectures at a meeting held in his honour at the Bernoulli Center at the EPFL in Lausanne, Switzerland, 22–28 July, 2007. The papers cover, as much as it is possible, the tremendous range and depth of work done by Darryl over the years. These topics include the Camassa–Holm equation and waves, geometric mechanics, symmetry and integrable systems, fluid and plasma dynamics, including stability problems, regularized incompressible fluid models (such as the α- or LANS models), including turbulence and multiscale methods, ocean dynamics, the EPDiff equation (a higher dimensional version of the CH equation) and computational anatomy. Perhaps a little less well known is Darryl's influential work in adiabatic fluids in general relativity, liquid crystals and other topics. But underlying all of Darryl's work is the geometric view of mechanics and physics, which was already kindled in his 1976 PhD thesis at Michigan. One of Darryl's and our favorite accomplishments is the development of the Camassa–Holm equation, a remarkable integrable PDE with, amazingly, spatially non-smooth, peaked, solitions. This is understandable—the equation caught on like wildfire because of its fascinating properties and the ideas in that paper proved to be a gold mine of research. It is his most cited paper with nearly a thousand citations, according to Google Scholar. We are pleased that our joint 1985 paper on fluid and plasma stability comes in second and the paper that was a precursor to the alpha model series of papers, namely our Euler–Poincare paper, comes in third. Of course having an equation named after you is a very nice bonus. Congratulations Darryl on a brilliant career that shows no signs of slowing down!

At the moment, the pulp and paper industry produces a wide variety of types of paper and board, which can serve as an alternative to plastic packaging products. The main requirement for paper packaging is high strength properties, which include: breaking length, resistance to breaking, bursting and tearing. The required strength properties can be ensured at the stage of refining the semi-finished product from which the paper product will be made by changing the consistency of the pulp. Since the influence of the consistency of the pulp during refining on the strength characteristics of the finished product has not been fully studied, it was of interest to find out how the strength properties of castings change when refining the pulp with a change in concentration.

Funder: John Simon Guggenheim Memorial Foundation; doi: https://doi.org/10.13039/100005851, Funder: Einstein Visiting Fellow Program, The Rayleigh–Bénard system with stress-free boundary conditions is shown to have a global attractor in each affine space where velocity has fixed spatial average. The physical problem is shown to be equivalent to one with periodic boundary conditions and certain symmetries. This enables a Gronwall estimate on enstrophy. That estimate is then used to bound the L 2 norm of the temperature gradient on the global attractor, which, in turn, is used to find a bounding region for the attractor in the enstrophy–palinstrophy plane. All final bounds are algebraic in the viscosity and thermal diffusivity, a significant improvement over previously established estimates. The sharpness of the bounds are tested with numerical simulations.

This paper presents the results of research on the process of grinding dried corn stalks to use them as polylactide filler. Shredding was carried out on a laboratory shredder with the use of a design variant based on discs with cylindrical holes. By selecting the design variant, the appropriate grinding speed and the material pressure on the shredder discs, the most favourable parameters in terms of the quality of the shredded product and low energy consumption were selected. The research was conducted to reduce the energy demand during the shredding process and to obtain the shredded material suitable for further processing steps.

A theorem of Weyl tells us that the Lorentz (and parity) invariant polynomials in the momenta of $n$ particles are generated by the dot products. We extend this result to include the action of an arbitrary permutation group $P \subset S_n$ on the particles, to take account of the quantum-field-theoretic fact that particles can be indistinguishable. Doing so provides a convenient set of variables for describing scattering processes involving identical particles, such as $pp \to jjj$, for which we provide an explicit set of Lorentz and permutation invariant generators., Comment: 18 pages, 3 Tables

In an attempt to understand the soliton resolution conjecture, we consider the Sine-Gordon equation on a spherically symmetric wormhole spacetime. We show that within each topological sector (indexed by a positive integer degree $n$) there exists a unique linearly stable soliton, which we call the $n$-kink. We give numerical evidence that the $n$-kink is a global attractor in the evolution of any smooth, finite energy solutions of degree $n$. When the radius of the wormhole throat $a$ is large enough, the convergence to the $n$-kink is shown to be governed by internal modes that slowly decay due to the resonant transfer of energy to radiation. We compute the exact asymptotics of this relaxation process for the $1$-kink using the Soffer-Weinstein weakly nonlinear perturbation theory., Comment: 19 pages, 10 figures, final version

This is an introductory paper based on general knowledge such as simplicial complex, nerves and their homotopy equivalents in the topology field. It focuses on the theoretical part of one of the four statements on nerve theorem of paper variations on the nerve theorem. One of many ideologies throughout this theorem is to conduct an approximating process on mathematical spaces with restrictions, which is the bridge from a theory to an application of Weil’s theorem and many others. Besides, work done by Kathryn Heal in her paper variations on the nerve theorem has proved the correctness and feasibility about Weil’s theorem. This paper aims to clarify her proof of Weil’s theorem and make it more easier for people to understand.

It is shown that on the average, the number of citations to papers increases linearly with the number of authors. However, if team research takes substantially more time to perform than individual research, the advantage is lost. The larger citation rate for many-authored papers is not due to the higher citation rate for longer papers because they tend to be shorter than few-authored papers: it is also not due to certain more-active fields more multiauthored papers. Longer papers yield substantially larger numbers of citations than shorter papers, but a single long paper still yields fewer citations than the total for several shorter ones of the same combined lengths.

We introduce a framework for the reconstruction and representation of functions in a setting where these objects cannot be directly observed, but only indirect and noisy measurements are available, namely an inverse problem setting. The proposed methodology can be applied either to the analysis of indirectly observed functional images or to the associated covariance operators, representing second-order information, and thus lying on a non-Euclidean space. To deal with the ill-posedness of the inverse problem, we exploit the spatial structure of the sample data by introducing a flexible regularizing term embedded in the model. Thanks to its efficiency, the proposed model is applied to MEG data, leading to a novel approach to the investigation of functional connectivity., 40 pages

Styrax resin is a major non-timber forest product from North Sumatra, Indonesia. However, thousands tons of raw resin are sent abroad, while various styrax oil-based products worth US millions dollars are imported annually. Limited harvesting and processing technology are some of root of causes the lack of styrax oil-based industry development in Indonesia. The objective of this paper was an overview of styrax forest management in North Sumatra, efforts to increase the added-value both quality and quantity of resin, and an alternative processing of raw material into a perfume innovation. Benzoin resin is produced by the injured inner epithelial bark of styrax tree. Therefore, tapping of bark is the best effort to harvest the resin. But, styrax forest management has been carried out traditionally, including harvesting techniques. One of scheme to increase added-value is resins processing into a perfume products with high economic value. The innovative products begin from extracting a solid styrax resin into pure essential oil. There are two methods used, namely (a) extraction with solvent, and (b) distillation method. The amount of yield of benzoin oil produced by solvent method is influenced by incense grade from 23.9 to 34.6% and higher than another method. But distillation method also produces high quality and quantity of hydrosol (side product) with a distinctive aroma. Combined with various essential oils from Indonesia’s tropical forests, the styrax oil becomes a fixing agent for a signature perfume that formulated by considering the gradation of aroma in accordance with release of constituent essential oil particles. Processing resin into an essential oil increases the added-value of styrax resin. Innovation of styrax resin based products will explore the fragrance formulation of this commodities therefore reduce our country dependence on imported perfume and raw materials used for various personal cares.

Conventional construction materials are considered as exploitation to natural resources. Thus, numerous alternative materials using natural or waste materials are proposed for concrete production as a response for greener, renewable and biodegradable environments with regard to sustainability. Natural fibre such as bamboo has been rapidly proposed for many applications especially for concrete production in construction. In order to tackle the environmental issues and focusing on sustainability, natural fibre of Beting bamboo is proposed for partial replacement used as supplementary cementitious materials. Current study investigates the partial replacement of coarse aggregate with Beting bamboo in concrete mixtures. The outcome of the study discovers that through the mix design, replacing 5% by weight of Beting bamboo is an ideal % to achieve concrete mixture for structural and nonstructural application. However, with the increase % of Beting bamboo for partial replacement, the strength of the concrete gradually decreased.

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This paper uses break-even analysis to determine the cost of producing patchouli oil in Kete Nilam Hijo (KNH). KNH is an industry engaged in the refining process of patchouli oil, located in South Aceh Regency, Indonesia. One obstacle faced by the KNH is that the costs of producing patchouli oil are not yet known. So far, KNH has never made economic calculations in producing patchouli oil. KNH only relies on production based on profit so that profits are not maximized and always fluctuates. In addition, the break-even point for the production of patchouli oil is also not known with certainty. To determine the break-even point, total costs and total revenue will be calculated first. This research was conducted in several stages, namely preliminary study, data collection, data processing, analysis of results, and finally concluding the results of the study. The results showed that the total production cost of patchouli oil refining at KNH in one year was 1,120,018,250 rupiah. Meanwhile, KNH had to sell 1,600 kilograms of patchouli oil to break-even.

The demand for applying sustainability in the construction industry increases the necessity of using natural materials in concrete production. Plant-based natural fibers are cost effective renewable materials which considered a potential way to support sustainable development in both urban and rural regions. This paper investigates the potential of using sugarcane bagasse, palm trunk and banana fibers as concrete reinforcement by determining the effect of different volume percentages of these fiber on the mechanical properties of concrete. The percentage of fiber used was 0.5%, 1.0% and 1.5% for sugarcane, 1%, 2%, and 3% for Palm Trunk, and 0.3%, 0.5%, 0.7%, and 1% for banana. Results showed that the optimum value of sugarcane, and banana is 0.5%, 4% respectively. In addition, the addition of 1%, 2%, and 3% of palm trunk fiber improved the mechanical properties of concrete.

The paper deals with the design of composition and verification of the properties of heavy-weight concrete for the production of weights. Heavy weights from fine-grained heavy-weight concrete can be used as a substitute for harmful lead weights (sinkers) for fishing purposes. Lead fishing weights contaminate water, posing a risk to aquatic animals and birds. The production of fishing sinkers from heavy-weight concrete seems to be a possible substitute. A significant reduction in the use of lead fishing sinkers in the European Union is currently under preparation. The formulas of heavy-weight concrete from fine aggregate (fractions max. 2mm) were designed and tested. The consistency of concrete was designed for casting. The optimum vibration frequency of concrete compaction was determined at 75 Hz, resulting in a smooth, colourable surface. The density of the dried concrete after 28 days was 4000 kg.m−3 using a magnetite aggregate with an apparent density of 5.07 Mg/m3.

The paper presents experimental investigations of straw cutting in the form of triticale. The cutting was performed using a specialized testing station adapted for mounting on a MTS Insight 50 kN testing machine. It is allows to change the cutting blade, which made it possible to study the effect of changing the rake angle of its blade and the inclination of the cutting edge on cutting force value. The influence of the linear speed of the knife and the size of the gap between the blade and the counter-blade was also investigated. The results obtained allowed to select the most favorable values of the above-mentioned parameters of the cutting process in terms of obtaining the lowest value of the cutting force, which consequently determines the process energy consumption. Obtained results are not only guidelines for machine design and cutting devices, but these can also be used as input data for multicriteria analysis, which can result in looking for other values of process parameters not taken into account in the presented studies, and key ones in the direction of the next ones.

At present, in the dairy industry there are a number of unresolved issues, one of them is the processing of secondary raw materials, namely whey curd. Processing of dairy whey in Russia, despite numerous developments in this area, is held back for various reasons. Production and introduction of whey drink will allow to extend the assortment of functional products and due to resource-saving technology will allow to solve the problem of processing of secondary raw materials. The results of researches on making extracts of vegetative raw material by different methods are resulted in the article and the optimum one which allows to enrich maximal extract with biologically active substances is chosen. The technology of whey beverage with the use of plant extracts is developed. The influence of extracts from vegetable raw materials on the nutritional value of whey drink has been determined.

Purpose. 4D-CT is routine imaging for lung cancer patients treated with stereotactic body radiotherapy. No studies have investigated optimal 4D phase selection for radiomics. We aim to determine how phase data should be used to identify prognostic biomarkers for distant failure, and test whether stability assessment is required. A phase selection approach will be developed to aid studies with different 4D protocols and account for patient differences. Methods. 186 features were extracted from the tumour and peritumour on all phases for 258 patients. Feature values were selected from phase features using four methods: (A) mean across phases, (B) median across phases, (C) 50% phase, and (D) the most stable phase (closest in value to two neighbours), coined personalised selection. Four levels of stability assessment were also analysed, with inclusion of: (1) all features, (2) stable features across all phases, (3) stable features across phase and neighbour phases, and (4) features averaged over neighbour phases. Clinical-radiomics models were built for twelve combinations of feature type and assessment method. Model performance was assessed by concordance index (c-index) and fraction of new information from radiomic features. Results. The most stable phase spanned the whole range but was most often near exhale. All radiomic signatures provided new information for distant failure prediction. The personalised model had the highest c-index (0.77), and 58% of new information was provided by radiomic features when no stability assessment was performed. Conclusion. The most stable phase varies per-patient and selecting this improves model performance compared to standard methods. We advise the single most stable phase should be determined by minimising feature differences to neighbour phases. Stability assessment over all phases decreases performance by excessively removing features. Instead, averaging of neighbour phases should be used when stability is of concern. The models suggest that higher peritumoural intensity predicts distant failure.

The environmental impact caused by generation of plastic wastes at a global level is significant, during the last year, production of plastic increased by 40% due to the Covid-19 pandemic, demanding in an accelerated way the massive use of disposable personal protection elements. This situation has changed drastically the pattern of human behavior, introducing a lifestyle with greater hygiene that makes necessary to use plastic packaging to cover products, utensils, and food, avoiding any risk of transmission. To combat the massive use of plastic it is necessary to activate the transition towards circular economies that make use of environmentally friendly plastics; this is the case of biopolymers, materials that can be synthesized from organic waste rich in starch. Therefore, in this work, the factors that affect the hardness of polymers made from potato and plantain peels are studied through a factorial experimental design. The design establishes the combination of urea, glycerine, acetic acid, and water, to identify the best combination of plasticizer and their effect on the hardness of the material. Using Minitab, the multivariate linear models of hardness behavior were assessed to achieve the highest hardness values.

Agroindustry of dadiah is a small industry of Minangkabau traditional food, made from buffalo milk through spontaneous fermentation. Dadiah is a combination of comparative and competitive advantages that has the potential to be developed in West Sumatra. This synergic and sustainable “local specific” development is expected to be able to increase community income and product added value. This is a further research, after mapping dadiah agroindustry. The purpose of this study is to identify the raw materials, processes and products of dadiah traditional food agro-industry that had been mapped in earlier studies. Dadiah identification includes physical properties (length and diameter of dadiah tube, color, moisture content), chemical (pH) and biological (BAL). The sampling technique uses deliberate sampling techniques, namely the agro-industry that is willing to be interviewed and whose products are analyzed. Observation on the identification of raw materials showed that the length of dadiah tube varied for each group. Tanah Datar District has an average size of 28+ 2cm. The dadiah product of Agam District, taken from two locations, each with size of 10 + 2 (Gaduik) and 17 +/-2 cm (Lambah), Sawahlunto District 30 +/-2 and Solok District 60+/2 5 cm. The physical properties of color, aroma and overall appearance are not different, namely yellowish white, dadiah distinctive aroma, solid shape, flat and curved surface. The chemical properties of dadiah have almost the same pH and ash content.

UV light and air pollution are sources of free radicals that can trigger skin problems. Skin problems can be overcome by using skin treatments that contain antioxidant compounds so that oxidation reactions derived from free radicals can be inhibited (Halliwell and Gutteridge, 2000). Skin care that can overcome skin problems is body scrub preparation. Body scrub cream-based preparations consists of oil and water phase, emulgator, and abrasives. Oilseed press cake or residual product of nyamplung (tamanu) oil (Calophyllum inophyllum L.) has characteristics as an abrasiver and reported degree of hydrolysis that can counteract free radicals using the DPPH method through a % RSA value of 39.82%. Oilseed press cake of nyamplung will be developed as a raw material for the formulation of body scrub that have added value. Body scrub formulation was done by optimizing the emulgator material (stearic acid and triethanolamine) using Expert Design software D-Optimal and the optimal emulgator concentration was obtained (stearic acid 3% and triethanolamine 1%) and physical in stability of the optimum formulation is tested in 28 days in 1,2,3 and 4 week at room temperature by looking at the parameters of organoleptic physical properties, pH, viscosity, spreadability, and adhesion test. Based on physicaly examination, it showed that the formula of oilseed press cake of nyamplung body scrub for 28 days at room temperature is a semi-solid, brown color and smells of apple, pH value is 7,647 ± 0.128; the viscosity value is 3.633.33 ± 152.75 dPas; spreadability is 3,87 ± 0.20 cm, and adhesiveness is 2,3 ± 0,04 second.

This study aims to utilize the combination of cassava and coal waste as raw materials for making briquettes using several different concentrations of tapioca adhesives. This study uses a completely randomized design (RDC) with 2 factorials. The first factor is material composition, assigned by the letter P, which has 3 different varieties of different cassava, which are (P1) Kasetsart cassava and coal waste, (P2) Thai cassava and coal waste, and (P3) butter cassava and coal waste. The second factor is tapioca adhesive concentration, which consists of two different treatments: (M1) 15% and (M2) 20%. The combination of these different treatments then repeated 4 times resulted in 24 experimental units. The briquettes produced then underwent several characteristics tests, including water content, calorific value, combustion rate, density, compressive strength, shatter resistance index, and changes in the temperature of the pan base when the briquettes were burned. The acquired data then processed using Microsoft Excel 2010 and SAS v9 software. The data obtained will then be compared to SNI (Indonesia National Standard) to find out whether the briquette is fulfilling the requirement for application. The results are as follows: treatment P1M1 and P1M2 have a water content ranging from 5.36-7.09% and a calorific value between 4.427 – 5.541 cal/g, and it also fulfills the SNI Standard. Another characteristic is shown by P1M1 and P1M2 such as combustion rate around 0.37-0.4 g/min, density between 0.37-0.39 g/cm3, compressive strength between 48.67 N/cm2, and shatter resistance index numbering around 99.90-99.92%, able to fulfill 95% of the SNI requirement for bio coal briquette, as well as changes in the bottom temperature of the pan which has reached the highest temperature of 303°C in the 26th minute of the P1M1 treatment combination and the lowest is 311°C at the 28th minute of the P1M2 treatment combination.

The relevance of the problem under consideration is due to the need for hardware to cover a wide range in the determination of heavy metals in food. One of the primary and important tasks remains to ensure control of the quantitative content of lead, the introduction and application of fast and reliable methods of their research. The analysis of the data obtained shows that all the results on the study of wheat bread for the content of lead, obtained by stripping voltammetry and atomic absorption spectrometry for the assessment of precision and operational control of the error using the method of additions are satisfactory. The obtained monitoring results indicate that in the range of less than 0.01 mg of lead per 1 kg of wheat bread prevail (75.6%) over other ranges. The least registered sample results are (2.2%) with the range of obtained data: 0.1-1.0 mg/kg.

The quickly weariness of petroleum products because of the taking off industrialization and vehicles of the world. The excursion for elective fills has had the option to be unavoidable, looking energy of diesel for transportation portion. Biodiesel has transformed into a key source as usage powers for CI engines. Biodiesel gotten from vegetable oils are totally promising alternative fills for diesel engine. The delivered of Hibiscus Cannabinus biodiesel is blended in with diesel fuel like (Hibiscus Cannabinus biodiesel H100%H80%H60%H40%,andH20%.The ignition, execution and outflow qualities will be assessed at variable burdens and consistent evaluated speed 1500rpm, modified weight extent 16.5:1,fixed weight 200 bar and result will be contrasted and diesel fuel.

Oil palm plant is one of the plantation crops that become the largest foreign exchange income in the national economy. But the lack of information regarding Palm Oil Mill Effluent (POME) deserves serious attention since POME utilization could support plant growth and production and reduce the environmental pollution. This study aimed to evaluate the effectiveness of POME land application in increasing the production and yield components of oil palm crops. This study was conducted in PTPN VII, Bekri Unit, Lampung, Indonesia, from April to August 2019. The experiment was arranged in a Complete Randomized Group Design (CRGD) with three replicates while the difference in mean values between treatments was analysed using the Independent T-Test. This research results showed that the POME applied land could increase the total FFB number up to 40% significance with 38 harvested FFB per month. While, the total FFB weight increased up to 44% significance with 791,3 kg/38 FFB per month. The results of this study showed that POME applied land could be advantageous to be applied on oil palm plantation and could reduce environmental pollution.

The use of synthetic dyes in textiles has bad impact on human health and pollution in environment. To solve this problem, it is important to get the information about the potential of various types of plants that can produce natural substances as dyeing agent. This research was to examine the colors contained in Mahogany (Swietania mahagoni L.) scattered in Aceh Province using three types of color fixations (alum, Lime, and iron sulfate). The various colors produced from this plant can be grouped into 2 colors i.e. grey and brown. The fixator had played an important role in binding the colors of the plant so that the resulting colors do not fade easily. Two textile products, pashmina and headscarf, are dyed using the natural coloring from mahogany and decorated with Acehnese traditional motifs are produced in this research. The authenticity from the natural dye cannot be produced twice from the same plant. Therefore, the exotic accent combined with the traditional motifs as well as the comfort of the consumers are important because it is not harmful to the health of the wearers. These reasons make this product very interesting in the market even though the price is high.

This research aims to know the effects of extract composition on the solid soap properties (i.e. pH and hardness). The extract composition and reaction time were varied at 1 to 1.5 wt.% and 20 to 40 minutes, respectively. The red dragon fruit peels (Hylocereus polyrhizus) extract was obtained by maceration method followed by evaporation process, in order to remove the remaining ethanol (EtOH). The solid soap is made by reacting Virgin Coconut Oil (VCO) with sodium hydroxide (NaOH) and several additives. The results showed that the prepared solid soaps contain pH (8.29 – 10), hardness (55.763 – 380.167 mm/s). It indicates that solid soap with reaction time 20 minutes with 1.5 wt.% extract has the best stability among all the formed soaps.

Aceh patchouli oil is sometimes mixed with various oils for profit resulting in the low quality of patchouli oil. This low quality caused Aceh patchouli oil to depress its selling price. The main objective of this study is to develop NIRS technology to investigate the authenticity of patchouli oil mixed with coconut oil using Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA) methods. This present study uses 6 kinds of sample treatment namely pure oil and mixed oil with a total of 42 samples for calibration and 18 samples for validation. The results showed that NIRS Technology with PCA and LDA methods provides a solution opportunity to solve the problem of counterfeiting patchouli oil with coconut oil. The PCA method successfully obtained a classification model that was able to provide a clear visual appearance to distinguish between pure patchouli oil and a mixture of patchouli oil and coconut oil. Meanwhile, the LDA method successfully obtained a validated classification model with the number of errors 1 out of 18 independent validation samples to distinguish between pure patchouli oil and non-patchouli oil.

The design and fabrication of a wet mechanical brushing unit for lye pre-treated cassava root was described in this paper. The objective of this work was to determine the time of reaction, the temperature and the concentration of sodium hydroxide solution that will effectively digest the peel and also the speed of the machine, output size, efficiency of peeling and tuber loss. It was determined that using lye solution to digest cassava root peel depends on the severity of the concentration of the solution and the time of root immersion. From the preliminary labouratory tests carried out, the optimal combination of process parameters in terms of concentration, temperature and time of root immersion for UMUCASS44 in lye are 20%, 60°C and 15 minutes, respectively. These values are sufficient to digest the peels of the root for enhanced brushing.

Ibuprofen as an alternative to aspirin has notable values on medical fields including antipyretic, anti-inflammatory and analgesic. Firstly, this article evaluates the existing methods of ibuprofen synthesis and analyzes their relative pros and cons. Based on this analysis, this paper then proposes an improved method based on the research of Snead and Jamison (2015). Compared with the previous methods, the proposed method is considered to have higher yield, safer production environment, and more obtainable raw materials.

Company can not be separated from the production process in carrying out its business activities. Therefore, the company strives for the production process to be carried out properly, economically, and to prevent obstacles to the company’s operations. In the production process carried out by AA Company, production operations are the responsibility of the Refinery and Fractionation division. Observations were made at the Refinery Plant 1, where the division has an interest in carrying out a production schedule related to the processing of Crude Palm Oil (CPO) into Refined Bleached Deodorized Palm Oil (RBDPO) with Grade Commerce. Based on field observations, one of the problems that occurred was the RBDPO yield target that was not reached. The company set an RBDPO yield target of 94.50%. But in practice, the yield of RBDPO produced is still below the target set. The idea of problemsolving provided is to analyze the root cause of the problem with Cause and Effect Diagrams, analyze the magnitude of potential failures in the process by using Failure Mode Effect Analysis and provide alternative corrective actions using the 5W + 1H method.

The study on the optimization of hydrogenation and rafination process for cocoa butter substitute (CBS) production using palm kernel oil in small and medium scale industry was conducted. The CBS production process included: hydrogenation, cooling, bleaching, filtering, deodorizing, cooling, and packaging. The optimum condition of the hydrogenation process was obtained using hydrogen with 0.2% nickel catalyst, at 195-200°C, under 2-2.5 bar, using 6.12 hz agitation at 1700 rpm, for 12 hours process. The optimum condition of the rafination process was achieved by bleaching using 2 % bentonite at 80-95°C for 45 minutes and cooling it at 60°C, and deodorizing it at 240°C for 4 hours. The final product of CBS had similar quality characteristics as commercial cocoa butter and was well accepted by consumers. It contained no trans-fatty-acid, 0 nickel, low FFA, and a melting point of 37.1°C.

Cristal small industry is one of the industries which focuses on processing the snake fruit chips in Sleman, Yogyakarta. To purify used cooking oil in this industry is using young pineapple as adsorbent. However, the industry did not know optimal condition of its adsorbent during the purification process. This research is aimed to determine the combination of optimum factor level of control factors that affect the quality of used cooking oil. Four control factors are as follow; processing time, temperature, atmospheric pressure and thickness of pineapple slice. The number of levels of each factor is three level. Based on the number and factor level used, the experimental design was prepared based on the orthogonal matrix L9 (34) as a tool in Taguchi method. Data analysis are conducted by using signal to noise ratio (SNR), factor effect, variance analysis, multiple performance characteristic and confirmation test. The results showed that the optimal condition for using young pineapple as adsorbent in used oil purification were temperature of cooking at 88°C, processing time for 70 minutes, atmospheric pressure of 72 mmHg and pineapple thickness of 4 mm.

The use of waste-free production in the food industry is an urgent problem for the entire world economy. Processing companies most frequently face challenges in managing their waste. This is one of the reasons for low return on production. An example of that is (curd) whey. When making dry-curd cottage cheese and cheese, many dairy plants often do not use whey for further processing, but dispose of it. Therefore, produced in the conditions of the educational and research lab of milk and dairy technology and the educational scientific-production lab of baking, biotechnology and agronomy faculty of the Federal State Budgetary Educational Institution of Higher Education Chuvash State Agricultural Academy, this publication explores the use of whey in baking and its influence on biotechnological processes when baking wheatrye bread. Test lab baking with added whey was successful in terms of organoleptic and physical-chemical properties. Found that in the first experimental group the acidity of the crumb of bread is equal to 9.50 degrees, in the second experimental group 9.02 degrees. The porosity in the second experimental group is 10% higher than in the first group. The moisture content of the crumb in the first experimental group is 2% higher than in the first experimental group.

The aggregate used in the flexible pavement in the city of Sabang must be brought from Aceh Besar Regency. This can affect the high operational cost and the insufficient use of local materials. In anticipation of this, the local mountain rocks used are variated with coconut shell ash as a filler and low-density polyethylene (LDPE) plastic use as asphalt substitution. The method used in this study refers to the 2018 specification of Bina Marga (fourth revision of 2010 version). The research results showed that asphalt concrete wearing course (AC-WC), which filler varied with coconut shells (0% and 25% of the weight), meet all predefined parameters. In terms of AC-WC varied with coconut shell and LDPE, the best combination found in this result was 25% of coconut shell ash and 3% of LDPE. AC-WC varied with this best combination has a stability of 1,780.99 kg, the flow of 2.97 mm, VIM of 4.79%, VMA of 16.51%, and VFA of 70.97%.

The aim of the study was to examine various biological filters for hyacinth, hydrilla, apu apu and azzola media based microsatellite analysis of quality snakeheads (C striata) production. The research was carried out at the integrated laboratory of Diponegoro University in January to April 2019. The snakeheads used was size 4.83 ± 0.02 cm long of body and weighed 5.47 ± 0.12 g / fish, using artificial feed 35% protein content is given 3% perbiomas per day. The design used CRD 4 treatments and 3 replications were T1 (hyacinth), T2 (Hydrilla), T3 (apu apu), and T4 (Azzola) treatments, then for determining the quality the microsatellite genetic marker IS-GB1F 5-CCC TGT ATT TCA TTT CTC CA -3 and IS-GB 1 R 5-ACC ACT AAC GCA ATC TCT CT-3, for measuring genetic variation, polymorphic, number allel. Data analysis used minitab version 11. The results showed that the best treatment was T3 with survival rate 96.67 ± 1.92%, absolute weight growth of 14.60 ± 2.41g, SGR 2.61 ± 0.22% / day. The quality of snakehead using microsatellite was T3(band10-12, 13-16) on the best quality of snakeheads fish on T3 (204 bps allel ladder with 215 bps.

Many studies raise the issue of analysis on the quality of coffee beans (green beans). Green beans are the term used to indicate coffee beans before roasting. The importance of analyzing the quality of coffee beans not only in coffee beans but also in rice seeds. Rice seeds are used as a mixture in the roasting process of coffee. Analysis of the quality of roasted coffee is very important. In roasted coffee beans can be damaged and changes to the coffee beans. Some types of damage to coffee beans include, blackened seeds, partially blackened seeds, browned seeds, broken seeds, perforated seeds, epidermis seeds, horned skin seeds, too young seeds, spotted seeds, and dirty seeds. This study focuses on one of the damage factors, namely broken coffee beans after broken beans. In this study, analysis of roasted coffee quality was determined by shape analysis. The shape analysis uses elongation values. there are two categories of classification, the first class of coffee is of good quality, and the second is coffee with poor grade. Classification is good if the elongation value is more than 0.85, for other conditions it is classified as bad. The results of this study have the following accuracy values, at coffee with a classification of good accuracy of 93.4%, while those at coffee with a bad classification of accuracy are 78.5%.