Pengaruh Varietas Apel dan Campuran Bakteri Asam Asetat terhadap Proses Fermentasi Cider

Tujuan penelitian ini adalah untuk mengevaluasi pearan varietas apel dan rasio bakteri asam asetat dalam fermen- tasi cider. Dua varietas apel (Manalagi and Rome Beauty) dan dua kultur bakteri (Acetobacter pasteurianus INT-7 and Acetobacter aceti JCM 7640) digunakan dalam penelitian ini. Ekstrak buah apel dinokulasi dengan bakteri asam asetat dengan rasio 1:1 dan 1:2. Sebagai substrat ditambahkan ke dalam medium fermentasi etanol sebanyak 5 %. Fermentasi silakukan secara aerobik pada suhu ruang selama 7 hari. Hasil penelitian menunjukkan bahwa fermentasi cider menggunakan varietas apel Rome Beauty dengan perbandingan A. pasteurianus : A. aceti = 1:2 menghasilkan asam asetat sebanyak 3,11 %, yield produk 0,85 dan efisiensi sebesar 60,56 %

Intuitive perception and the competitive advantage of small family businesses: an exploratory study

We assess the closeness of perceptions between managers and customers of two small family-owned businesses ("FBs") and two larger non-FBs in Sardinia, Italy, in exploring how local retail shops may compete against international superstores. While the decline of small, High Street businesses has been widely reported, we present a more nuanced perspective of their competitiveness by suggesting how these typically family-run businesses may hold a competitive advantage over larger non-FBs based on their welldeveloped "perceptive concordance" with customers. Our findings have scholarly and managerial implications in the way that both FBs and non-FBs may gain competitive advantage by securing their customers' continuing support

Cholesterol homeostasis: a key to prevent or slow down neurodegeneration

Neurodegeneration, a common feature for many brain disorders, has severe consequences on the mental and physical health of an individual. Typically human neurodegenerative diseases are devastating illnesses that predominantly affect elderly people, progress slowly, and lead to disability and premature death; however they may occur at all ages. Despite extensive research and investments, current therapeutic interventions against these disorders treat solely the symptoms. Therefore, since the underlying mechanisms of damage to neurons are similar, in spite of etiology and background heterogeneous, it will be of interest to identify possible trigger point of neurodegeneration enabling development of drugs and/or prevention strategies that target many disorders simultaneously. Among the factors that have been identified so far to cause neurodegeneration, failures in cholesterol homeostasis are indubitably the best investigated. The aim of this review is to critically discuss some of the main results reported in the recent years in this field mainly focusing on the mechanisms that, by recovering perturbations of cholesterol homeostasis in neuronal cells, may correct clinically relevant features occurring in different neurodegenerative disorders and, in this regard, also debate the current potential therapeutic interventions

Pengaruh Pemberian Asam Retinoat terhadap Perkembangan Fetus Mencit (Mus Musculus L.) Swiss Webster

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian asam retinoat terhadap perkemban-gan fetus mencit selama periode organogenesis. Dua puluh empat ekor mencit bunting dibagi secara acak menjadi 6 kelompok perlakuan dengan masing-masing 4 ulangan. Asam retinoat dilarutkan dalam olive oil se-banyak 0,3 ml, diberikan secara injeksi subcutan pada saat kebuntingan hari ke 6. Dosis perlakuan asam reti-noat adalah 40; 60; 80; 100 mg/kg bb dan pada perlakuan kelompok kontrol tidak diberi perlakuan, serta ke-lompok pembanding diberi perlakuan pelarut olive oil. Induk mencit dipelihara sampai umur kebuntingan 18 hari. Pada umur kebuntingan 18 hari mencit dibunuh dengan cara dislokasi pada leher, dilaparatomie, memo-tong uterus, mengamati fetus yang resorp, menghitung jumlah fetus hidup dan mati, menimbang bb fetus, lalu melakukan pengamatan secara visual untuk melihat kecacatan yang terjadi pada mencit. Data jumlah dari ha-sil pengamatan tersebut diatas dianalisis dengan Anova Satu Arah dan dilanjutkan dengan uji Duncan\u27s untuk mengetahui beda nyata antar perlakuan. Hasil penelitian menunjukkan bahwa Asam retinoat yang diberikan pada mencit bunting selama periode organogenesis memberikan pengaruh terhadap perkembangan fetus mencit yang ditandai dengan semakin menurunnya jumlah fetus hidup, bb fetus, dan peningkatan fetus mati dan fetus resorp, dibandingkan dengan kontrol dan pembanding

Beliefs about technological and contextual features drive biofuels' social acceptance

To make the transition towards renewable and sustainable energy possible, there is a need to make new relevant technologies, including biofuels more acceptable and accepted. To promote biofuels acceptance and thus adoption means to improve both their perceived technological features and the surrounding context supporting their adoption, as well as some social-psychological features of the target adopters. Achieving the ultimate goal of biofuels adoption thus requires a complex and holistic approach to foster this new energy technology's acceptability and acceptance considering several biofuels features. For this aim, the integrated Sustainable Energy Technology Adoption Model (i-SETA) was developed and tested with newly piloted tools to measure the relevant biofuels' beliefs profile. A Path Analysis tested the relationship between the investigated variables. Results revealed the importance of beliefs belonging to each one of the different considered domains (technological, contextual, and personal variables). Several of them had a direct impact on the cognitive and affective biofuels evaluation, and subsequently on biofuels acceptability and acceptance, for European Union both laypeople and expert stakeholders (total sample of 1017 participants). The main results thus revealed that very specific beliefs, across all the three beliefs classes, can be identified as either barriers or drivers with respect to the aim of boosting biofuels' acceptability and acceptance. Each one of these specific beliefs could thus be properly targeted in the audiences to cope with the barriers and capitalize on the drivers

efficacy of biofeedback and cognitive behavioural therapy in psoriatic patientsa single blind randomized and controlled study with added narrow band ultraviolet b therapy

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Using Remote Monitoring And Machine Learning To Classify Slam Events Of Wave Piercing Catamarans

An onboard monitoring system can measure features such as stress cycles counts and provide warnings due to slamming. Considering current technology trends there is the opportunity of incorporating machine learning methods into monitoring systems. A hull monitoring system has been developed and installed on a 111 m wave piercing catamaran (Hull 091) to remotely monitor the ship kinematics and hull structural responses. Parallel to that, an existing dataset of a similar vessel (Hull 061) was analysed using unsupervised and supervised learning models; these were found to be beneficial for the classification of bow entry events according to key kinematic parameters. A comparison of different algorithms including linear support vector machines, naïve Bayes and decision tree for the bow entry classification were conducted. In addition, using empirical probability distributions, the likelihood of wet-deck slamming was estimated given a vertical bow acceleration threshold of 1 in head seas, clustering the feature space with the approximate probabilities of 0.001, 0.030 and 0.25