“Testing of High-Performance Concrete using Recycled Aggregates”

Tons of waste is produced in the world on every day basis which sometimes gets really hard to manage and. The waste from demolished structures is one of them. Recycling waste consume energy and produces pollution that can lead to many adverse effects on the environment and human life. The disposal of waste is also very dangerous for the environment. Using waste materials like waste aggregates, broken bricks, stones and other material in concrete can help in eliminating the waste and save the environment getting polluted. It is also very much economical and encourages green concrete industry. The literature study consists of testing of high-performance concrete using waste aggregates by replacing 100 % natural aggregates. Also, silica fume and plasticizer are used as admixture to obtain more effective results. The tests were carried out on 3, 7 and 21 days of curing. The results were tallied using graphs between comparison of compressive strength and tensile strength of natural and recycled aggregates. The cement and natural aggregates and sand was obtained from a local store in a nearby market. The recycled aggregates were obtained from a nearby demolished building. The quantities were taken in a proper proportion according to IS codes to avoid any defects while constructing the cubes and while curing and performing various tests. Keywords: Recycled Aggregates, Natural Aggregates,Concrete Strength, High Performance Concrete, Properties of Concrete, Cost Effective

Glycemic properties of soursop-based ice cream enriched with moringa leaf powder

Introduction. Diabetes is a common disease all over the world that is often a cause of mortality. Ice cream is popular in many countries. However, sugar and fat in its composition makes ice cream a high-caloric product. Soursop (Annona muricata L.) and moringa (Moringa oleifera L.), African medicinal plants, contain natural sugars and are rich in phytochemicals. We aimed to produce ice cream with these plants and evaluate its remedial properties. Study objects and methods. The study featured ice cream purchased in a local store (control sample) and soursop ice cream with moringa leaf powder (experimental samples). The experimental ice cream samples included ice cream with soursop, ice cream with soursop and 0.1 g of moringa, and ice cream with soursop and 1 g of moringa. The antioxidant properties, glycemic indices, amylose and amylopectin contents, as well as α-amylase and α-glucosidase inhibitory properties of the samples were determined using the standard methods. Results and discussion. Comparing with the other samples, ice cream with 1 g of moringa showed the highest total phenol and flavonoid contents, ABTS scavenging ability, DPPH radical scavenging ability, hydroxyl scavenging ability, ferric reducing antioxidant properties, and lowest glycemic index. Sensory evaluation revealed a lower overall acceptability of the experimental samples compared to the control ice cream. This could be due a peculiar taste of moringa (the formulation did not include sugar). Conclusion. Ice cream based on soursop and moringa can be a good alternative to sugar-sweetened ice cream due to its antioxidant properties, low glycemic index, and acceptable sensory attributes.

The Spontaneous Pricing Order in the Noncooperative Game of Monopolistic Manufacturer and Many Retailers

We consider the collective pricing orders in a minimum supply chain that is composed of a monopolistic manufacturer and many retailers that belong to the same chain store firm. The retailers have the freedom to raise or lower the local price. The chain store firm sets up the commercial rules for local retail stores to maximize its total payoff. The monopolistic manufacturer firm controls the total quantity supplied for the market to achieve maximum benefits. We applied the two dimensional Ising model in statistical physics to map the collective distribution of microscopic strategy of local retailers into the macroscopic total payoff of the chain store firm. The local stores choose to raise the price or lower the price based their own mind when the supply in market surpasses the demand. When the supply in market is far less than the demand, the stores synchronously raise prices, even though a local store only have the incomplete information of their nearest neighboring supermarket. We find the critical equation for the balance point between the action of supplier and the action of chain store management based on game theory and statistical physics. The critical equation can identify the Nash equilibrium point of the non-cooperative game between the manufacturer and the chain-store seller, and reveal different levels of collective operations. This statistical physics method also holds for more complicate supply chains and economic systems.

Cannabidiol (CBD) use among cancer survivors.

12096 Background: Cannabidiol (CBD) is a non-psychoactive component of cannabis touted for various therapeutic effects. The Federal Drug Agency has only approved one prescription CBD product for treatment of severe epilepsy. On December 17, 2020 the Federal Trade Commission announced legal consequences for deceptively marketed CBD products in the rapidly expanding market of various CBD products; the products’ unsupported claims included CBD as a cancer treatment. Little is known about survivors use of CBD. This study explores the prevalence and nature of CBD use by cancer survivors. Methods: A link to an anonymous, electronic survey was posted on the Levine Cancer Institute and SherryStrong (Martin Truex Jr. Foundation: philanthropy for ovarian cancer) Twitter and Facebook social media platforms. Data were managed in REDCap, a secure, web-based, electronic data capture tool. Survey responses were summarized and described with frequencies and compared using Fisher’s Exact tests; p < 0.1 was considered statistically significant. Results: N = 295 self-selected respondents were White (95%), female (86%), middle aged (45-64 years) (58%) and in the US (95%). Ninety percent indicated current (85%) or past (15%) use of CBD product; a third of these participants (N = 102) identified as cancer survivors. Gynecologic (31%) and breast (30%) cancers were the most recorded malignancies, and 38% report active treatment. Most survivors indicated using CBD products daily (77%) for a year or less (79%) and spent @$30 a week on products (70%). Common uses for CBD were easing pain (66%), anxiety (50%), and sleep (50%)—14% reported treating or preventing cancer. 41% learned about CBD from family/friends, fewer learned from the Internet (21%) or local store (11%). Only 12% received information from a physician. Liquid drops (58%) and topicals (19%) were popular products and reported side effects were sparse—sedation and/or euphoria were indicated by 10% and 2%, respectively. Over 82% of cancer survivors indicated that CBD product helped their conditions. CBD use to ease anxiety and stress declined with age; 71% of young survivors (aged 18-44) sought anxiety relief versus 45% and 36% of middle age (aged 45-64) and seniors (aged 65+), respectively (p = 0.05), and 58% of young survivors pursued stress relief versus 39% of middle age and 21% of seniors (p = 0.08). More young (25%) and middle age (37%) survivors indicated spending over $30 on products weekly than seniors (7%) (p = 0.08). No differences were seen in CBD use between cancer survivors by gender or treatment status. Conclusions: Cancer survivors commonly use CBD, yet infrequently under the guidance of a physician. Survivors largely rely on word of mouth and internet information about CBD. Despite lack of standardization of production and labeling of CBD products, the majority of patients reported positive improvements in symptoms. Future research should explore strategies to educate cancer patients and providers in safe CBD use.

„Multi-culti“ vs. ”another cell phone store“ – Changing ethnic, social, and commercial diversities in Berlin-Neukölln.

Based on an extensive ethnography of the economic and social life in Berlin-Neukölln, the paper asks how a changing demographic and social structure affects the social life but also the urban renewal on two iconic but contested streets - “the Arab street” Sonnenallee and adjacent Karl-Marx-Straße. The effects of migration - and particularly of the more recent refugee migration - to Berlin are explored through the reshaping and diversification processes of the physical and social spaces of the two streets and their businesses. In detail, the paper illuminates the changing ordinary everyday interactions and social and spatial practices in and around local shops and gastronomic facilities and argues that it is the interactions in and around certain shops and businesses that contribute to the everyday practice of urban diversity. The paper further reveals that regardless of the place-and community-making of the local store owners and staff therein, the local urban renewal and regeneration actors have a very different understanding of these spaces and their operators and also aim for a different kind of new “diversity”. The paper thus concludes by also showing how these actors frame and depict the increasingly ethnically diverse businesses on the two streets in the course of urban renewal, including a critical discussion of their perceptions and concrete practices as in contrast to the ethnically diverse business peoples’ perceptions and placemaking practices that often also represent homemaking practices.

Corner Store and Competitiveness Opportunities

Since the decade of the 1960s, the retail trade has evolved in a dizzying way. This has put at risk the permanence in the market of the traditional distribution and final sale models in which the local store is established, and whose existence has favored the development of the urban settlements in Latin America and, particularly, in Colombia. However, at present these may not be sufficient in the face of the development of new business models and technological platforms that have facilitated the acquisition process of products of primary necessity in a market composed of consumers with less availability for purchasing. In this sense, the local store assumes risks that can be addressed through the implementation of strategies that not only depend on the competitiveness conditions provided by the national government, but also on the decisions that autonomously take as a business model, whether as sector or as individual level. The chapter recommends actions to be implemented by the shopkeepers in the search for their permanence in the market.

Local Local Reasoning: A BI-Hyperdoctrine for Full Ground Store

Modelling and reasoning about dynamic memory allocation is one of the well-established strands of theoretical computer science, which is particularly well-known as a source of notorious challenges in semantics, reasoning, and proof theory. We capitalize on recent progress on categorical semantics of full ground store, in terms of a full ground store monad, to build a corresponding semantics of a higher order logic over the corresponding programs. Our main result is a construction of an (intuitionistic) BI-hyperdoctrine, which is arguably the semantic core of higher order logic over local store. Although we have made an extensive use of the existing generic tools, certain principled changes had to be made to enable the desired construction: while the original monad works over total heaps (to disable dangling pointers), our version involves partial heaps (heaplets) to enable compositional reasoning using separating conjunction. Another remarkable feature of our construction is that, in contrast to the existing generic approaches, our BI-algebra does not directly stem from an internal categorical partial commutative monoid.

Barriers to the flow of knowledge

Purpose This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach This briefing is prepared by an independent writer who adds his/her own impartial comments and places the articles in context. Findings It is said that people can only remember four things at a time. Sometimes we might be able to grow that to six or seven things, and of course there are some people who have trained themselves to remember huge numbers of items or digits in a certain order. And indeed, some lucky individuals have a photographic memory enabling them to remember this in great detail. But for most mortals, we have a hard time remember to buy milk, bread AND juice on a visit to the local store. Practical implications This paper provides strategic insights and practical thinking that have influenced some of the world’s leading organizations Originality/value The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.