Aristomenes - Metagenes : Einleitung, Übersetzung, Kommentar / Christian Orth

• Record Nr.: UNINA9910369057803321
• Pubbl/distr/stampa: Heidelberg : Verlag Antike, 2014
• ISBN: 978-3-938032-70-1
• Descrizione fisica: 538 p. ; 23 cm
• Collana: Fragmenta comica ; 9.2
• Locazione: FLFBC
• Collocazione: P2B 600 FRC 9.2
• Lingua di pubblicazione: Tedesco; Greco antico
• Formato: Materiale a stampa
• Livello bibliografico: Monografia

Why girls fight [[electronic resource] ] : female youth violence in the inner city / / Cindy D. Ness

• Record Nr.: UNINA9910460048803321
• Autore: Ness Cindy D. <1959->
• Pubbl/distr/stampa: New York, : New York University Press, c2010
• ISBN: 0-8147-5907-6; 0-8147-5867-3
• Descrizione fisica: 1 online resource (xiii, 185 pages)
• Disciplina: 303.60835/20973
• Soggetti: Female juvenile delinquents - United States; Teenage girls - Psychology; Inner cities - United States; Minorities - United States - Psychology; Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: The City of Philadelphia and Female Youth Violence -- Girls’ Violent Behavior as Viewed from the Streets -- The Reasons Girls Give for Fighting -- Mothers, Daughters, and the Double-Generation Dynamic -- Culture and Neighborhood Institutions.
• Sommario/riassunto: In low-income U.S. cities, street fights between teenage girls are common. These fights take place at school, on street corners, or in parks, when one girl provokes another to the point that she must either “step up” or be labeled a “punk.” Typically, when girls engage in violence that is not strictly self-defense, they are labeled “delinquent,” their actions taken as a sign of emotional pathology. However, in Why Girls Fight, Cindy D. Ness demonstrates that in poor urban areas this kind of street fighting is seen as a normal part of girlhood and a necessary way to earn respect among peers, as well as a way for girls to attain a sense of mastery and self-esteem in a social setting where legal opportunities for achievement are not otherwise easily available. Ness spent almost two years in west and northeast Philadelphia to get a sense of how teenage girls experience inflicting physical harm and the meanings they assign to it. While most existing work on girls’ violence deals exclusively with gangs, Ness sheds new light on the everyday street fighting of urban girls, arguing that different cultural standards associated with race and class influence the relationship that girls have to physical aggression.

Biosurfactants : greener surface active agents for sustainable future / / Deepansh Sharma

• Record Nr.: UNINA9910502991803321
• Autore: Sharma Deepansh
• Pubbl/distr/stampa: Singapore : , : Springer, , [2021]; ©2021
• ISBN: 981-16-2705-3
• Descrizione fisica: 1 online resource (200 pages)
• Disciplina: 668.1
• Soggetti: Biosurfactants; Agents tensioactius; Desenvolupament sostenible; Llibres electrònics
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: Intro -- Preface -- Contents -- About the Author -- 1: Biosurfactants or Chemical Surfactants? -- 1.1 Introduction -- 1.1.1 Classification of BSs Agents -- 1.2 Low-Molecular Weight (LMW) Biosurfactants -- 1.2.1 Glycolipids -- 1.2.2 Rhamnolipids -- 1.2.3 Sophorolipids -- 1.2.4 Trehalose Lipids -- 1.2.5 Mannosylerythritol Lipids -- 1.2.6 Lipopeptides -- 1.2.6.1 Surfactin -- 1.2.6.2 Fengycin -- 1.2.6.3 Iturin -- 1.3 High-Molecular Weight BSs -- 1.4 Microbial Polysaccharide BSs -- 1.4.1 Microbial Protein Surfactants -- 1.5 Properties -- 1.5.1 Temperature, pH, Salinity, and Ionic Strength -- 1.5.2 Toxicity and Biodegradability -- 1.5.3 Efficiency in Comparison with Chemical Surfactants -- 1.6 Surface and Interface Activity -- 1.6.1 Emulsification and De-emulsification -- 1.6.2 Foaming, Moisturizing, Dispersing, and Detergency Properties -- 1.7 Surfactant Vs. Biosurfactants -- 1.7.1 Competence of Biosurfactants in Comparison with Chemical Surfactants -- 1.8 Aptness of Biosurfactants for Industrial and Environmental Applications -- 1.9 Concluding Remark -- References -- 2: Screening of Biosurfactants -- 2.1 Properties of Biosurfactants or Basis of Screening -- 2.2 Introduction to the Screening Concept -- 2.3 Isolation of Biosurfactants Producing Microorganisms -- 2.4 Screening of ; Biosurfactants -- 2.5 Qualitative/Indirect Methods -- 2.5.1 Agar Surface Overlaid with Hydrocarbons -- 2.5.2 Blue Agar Plate for Extracellular Glycolipids -- 2.5.3 Hemolytic Activity -- 2.5.4 Drop Collapse Method -- 2.5.5 Oil Spreading Assay -- 2.5.6 Emulsification Index (EI) -- 2.5.7 Solubilization of Crystalline Anthracene -- 2.5.8 Turbidity Assay -- 2.5.9 Microplate Assay -- 2.5.10 Cell Surface Hydrophobicity (CSH) -- 2.5.11 Measurement of CSH -- 2.5.12 Hydrophobic Interaction Chromatography (HIC) -- 2.5.13 Salt Aggregation Test (SAT).; 2.5.14 Bacterial Adherence to Hydrocarbons (BATH) -- 2.6 Measurement of Surface Tension -- 2.6.1 Tensiometeric Measurement of SFT -- 2.6.2 Du-Nouy Ring Approach -- 2.6.3 Wilhelmy Plate Method -- 2.6.4 Stalagmometric Method -- 2.6.5 Pendant Drop -- 2.6.6 Axisymmetric Drop Shape Analysis (ADSA) -- 2.7 Molecular Tools to Identify Biosurfactant Producing Genes -- 2.8 High-Throughput Screening (HTS) -- 2.8.1 Atomized Oil Method -- 2.8.2 Detection of Lipopeptides Using Bromothymol Blue -- 2.8.3 Polydiacetylene (PDA)-Based Screening for Surfactin -- 2.8.4 A Rational HTS for the Screening of Sophorolipids -- 2.8.5 Determination of Carbon Source Concentrations by Cu(OH)2 Method -- 2.8.6 Target-Site Directed Rational HTS for High Sophorolipids -- 2.8.7 Metagenomic Approach -- 2.8.8 Functional Metagenomics -- 2.8.9 Metagenome-Derived Ornithine Lipids Screening -- 2.9 Conclusion and Perspectives -- References -- 3: Commercial Production, Optimization, and Purification -- 3.1 Introduction to the Commercial Production of BSs -- 3.2 Need and Availability of Inexpensive Substrates -- 3.3 Possible Substrates for BSs Production: Status Quo -- 3.3.1 Advantages and Drawbacks of Low-Cost Residues for BS Production -- 3.3.1.1 Industrial Waste Valorization -- 3.3.1.2 Industrial Waste Rich in Sugar Composition -- 3.3.1.3 Industrial Waste Rich in Oil, Fatty Acids, and Fats -- 3.3.2 Advantages and Limitations of Using Agricultural Residues and Waste Effluents -- 3.4 Bioprocess for the Commercial Production of BSs -- 3.5 Improvement/Optimization of Bioprocess -- 3.5.1 Development of Overproducing Mutants and Strains -- 3.5.2 Downstream Processing of BSs -- 3.6 Production and Downstream Process -- 3.7 Integrated Separation System of BSs -- 3.7.1 Foam Fractionation -- 3.7.2 Membrane Separation -- 3.7.3 Metabolic Engineering of Strain for Higher Production.; 3.7.4 Commercialized Biosurfactants -- 3.7.5 Biosurfactant Production Economics -- 3.7.6 Research Requirements and Future Directions -- References -- 4: Industrial Applications of Biosurfactants -- 4.1 Introduction -- 4.2 Biosurfactants Role in Food -- 4.2.1 Properties of Biosurfactants Ideal for the Food Applications -- 4.2.2 Surface Pre-conditioning by Microbial Surfactants -- 4.2.3 Biosurfactants as Food Additives -- 4.2.4 Biosurfactants as Food Emulsifying Agents -- 4.2.5 Biosurfactants Role in Food Preservation -- 4.2.6 Microbial Surfactants in Food Sanitation -- 4.3 Sensorial Behavior -- 4.4 Food Matrix Interactions -- 4.5 Regulations to Commissioned Biosurfactants as a Food Additive -- 4.6 Role of Emulsions in Pharmacy and Cosmetic Industry -- 4.6.1 Pharmaceuticals -- 4.6.2 Cosmetics Formulations -- 4.6.3 BS as Prebiotics -- 4.6.4 Healthcare Applications -- 4.6.5 Oral Health -- 4.6.6 Skincare Formulations -- 4.6.7 Drawbacks and Future Trends -- References -- 5: Role of Biosurfactants in Agriculture and Soil Reclamation -- 5.1 Introduction -- 5.2 Biosurfactants in Agriculture and Environment -- 5.2.1 Antimicrobial and Antifungal Properties -- 5.2.2 Biosurfactants as Biopesticide -- 5.3 Biosurfactants in Control of Post-Harvest Disease Control -- 5.4 Soil Health and Micronutrients Availability -- 5.5 Environmental Applications -- 5.5.1 ; Degradation of Polycyclic Aromatic Hydrocarbon (PAH) -- 5.5.2 Heavy Metal Removal and Soil Washing -- 5.5.3 Microbial Enhanced Oil Recovery -- 5.5.4 Role in Waste Treatment -- 5.6 Future Directions and Conclusions -- References -- 6: Toxicity and Biodegradability Assessment -- 6.1 Introduction -- 6.2 Biodegradability of Surfactants -- 6.2.1 Comparative Life Cycle Assessment (LCA) of Surfactants -- 6.2.2 Toxicity and Degradative Comparison of Surfactants and Biosurfactants -- 6.2.3 Toxicity Experimental Models.; 6.2.4 Skin Irritation Test (SIT) -- 6.2.5 Acute Toxicity -- 6.3 Ecotoxicity Assessment -- 6.3.1 Artemia Assay -- 6.3.2 Anomalocardia Brasiliana -- 6.4 In Vitro Cytotoxic Effect -- 6.5 Phytotoxicity -- 6.6 Conclusion and Future Directions -- References.