The Swelling of Latex

1930 ◽  
Vol 3 (3) ◽  
pp. 361-369
Author(s):  
F. Evers
Keyword(s):  
Boundary Layer ◽  
Aromatic Hydrocarbons ◽  
Great Increase ◽  
The Other ◽  
Organic Liquids ◽  
Brownian Movement ◽  
Ammonia Content ◽  
Latex Particles ◽  
Benzene Toluene ◽  
The Individual

Abstract The swelling phenomena of latex in organic liquids such as benzene, toluene, or xylene were studied. As factors in the swelling power the following were observed: (1) the ammonia content of the latex; (2) the formation of a boundary layer in the surface of contact of both liquids. Ammonia-rich latex on contact with aromatic hydrocarbons forms a boundary layer which in turn swells, with a great increase in volume. Latex poor in ammonia forms no boundary layer and therefore does not swell. On the other hand, the hydrocarbon may diffuse into the latex without disturbing the Brownian movement. Subsequently the diffused hydrocarbon is able to bring about the swelling of the individual latex particles.

scholarly journals Research on the Release of Dangerous Compounds from the BTEX and PAHs Groups in Industrial Casting Conditions

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2581
Author(s):  
Mariusz Holtzer ◽  
Rafał Dańko ◽  
Sylwester Piasny ◽  
Michał Kubecki ◽  
Dariusz Drożyński ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Phenol Formaldehyde ◽  
Green Sand ◽  
Casting Alloys ◽  
Furan Resin ◽  
Polycyclic Aromatic ◽  
Benzene Toluene ◽  
The Individual

The assessment of the harmfulness of moulding and core sands is mainly based on investigations of compositions of gases emitted by liquid casting alloys during the mould pouring. The results of investigations of moulding sands obtained under industrial conditions are presented in this paper. A unique research stand was designed and built for this aim. It allowed us to determine emissions of gases at individual stages of casting a mass up to 50 kg. This approach enables simulation of foundry conditions. Moulding sands bound by organic binders (phenol-formaldehyde; furan), inorganic binders and green sand, were subjected to investigations. The composition of gases that evolved during the individual stages, pouring, cooling and knocking out, was tested each time, and the contents of Polycyclic Aromatic Hydrocarbons (PAHs) and benzene, toluene, ethylbenzene, and xylenes (BETX) were analysed. Investigations indicated that the emission of gases from sands with inorganic binders is negligible when compared with the emission of gases from sands with organic binders. The emission of gases from green sand is placed in the middle of the scale. As an example: the sand with furan resin emitted 84 mg of BTEX (in recalculation for 1 kg of sand) while from sands with inorganic binders there was a maximum of 2.2 mg (for 1 kg of sand). In the case of sands with inorganic binders, MI and MC sands indicated comparable and very low emissions of gases from the PAHs group, at the level of 0.018 mg and 0.019 mg for 1 kg of sand, respectively. The higher emission of PAHs from MG sand is the result of its different way of hardening (a binder was of an organic character) than of sands MI and MC.

Writing in Aphasia Rehabilitation: Cursive vs Manuscript

1976 ◽  
Vol 41 (4) ◽  
pp. 523-529 ◽  
Author(s):  
Daniel R. Boone ◽  
Harold M. Friedman
Keyword(s):  
Correct Response ◽  
The Other ◽  
Read Aloud ◽  
Writing Style ◽  
Reading And Writing ◽  
Manual Responses ◽  
Significant Difference ◽  
Written Form ◽  
The Individual ◽  
Read Number

Reading and writing performance was observed in 30 adult aphasic patients to determine whether there was a significant difference when stimuli and manual responses were varied in the written form: cursive versus manuscript. Patients were asked to read aloud 10 words written cursively and 10 words written in manuscript form. They were then asked to write on dictation 10 word responses using cursive writing and 10 words using manuscript writing. Number of words correctly read, number of words correctly written, and number of letters correctly written in the proper sequence were tallied for both cursive and manuscript writing tasks for each patient. Results indicated no significant difference in correct response between cursive and manuscript writing style for these aphasic patients as a group; however, it was noted that individual patients varied widely in their success using one writing form over the other. It appeared that since neither writing form showed better facilitation of performance, the writing style used should be determined according to the individual patient’s own preference and best performance.

Margaret Mahy: An Adlerian Reading

2008 ◽  
Vol 1 (2) ◽  
pp. 187-199
Author(s):  
KATHRYN WALLS
Keyword(s):  
Young Female ◽  
The Other ◽  
Individual Psychology ◽  
The Novel ◽  
Alfred Adler ◽  
Female Protagonists ◽  
Magical Power ◽  
Margaret Mahy ◽  
The Individual

According to the ‘Individual Psychology’ of Alfred Adler (1870–1937), Freud's contemporary and rival, everyone seeks superiority. But only those who can adapt their aspirations to meet the needs of others find fulfilment. Children who are rejected or pampered are so desperate for superiority that they fail to develop social feeling, and endanger themselves and society. This article argues that Mahy's realistic novels invite Adlerian interpretation. It examines the character of Hero, the elective mute who is the narrator-protagonist of The Other Side of Silence (1995) , in terms of her experience of rejection. The novel as a whole, it is suggested, stresses the destructiveness of the neurotically driven quest for superiority. Turning to Mahy's supernatural romances, the article considers novels that might seem to resist the Adlerian template. Focusing, in particular, on the young female protagonists of The Haunting (1982) and The Changeover (1984), it points to the ways in which their magical power is utilised for the sake of others. It concludes with the suggestion that the triumph of Mahy's protagonists lies not so much in their generally celebrated ‘empowerment’, as in their transcendence of the goal of superiority for its own sake.

Gewalt und Kommunikation

2011 ◽  
Vol 2011 (1) ◽  
pp. 5-28
Author(s):  
Jens Bonnemann
Keyword(s):  
Twentieth Century ◽  
Moral Philosophy ◽  
The Other ◽  
Practical Philosophy ◽  
Valuable Contribution ◽  
Human Species ◽  
Normal Case ◽  
Jean Paul ◽  
Philosophy Of Dialogue ◽  
The Individual

In ethics, when discussing problems of justice and a just social existence one question arises obviously: What is the normal case of the relation between I and you we start from? In moral philosophy, each position includes basic socio-anthropological convictions in that we understand the other, for example, primarily as competitor in the fight for essential resources or as a partner in communication. Thus, it is not the human being as isolated individual, or as specimen of the human species or socialised member of a historical society what needs to be understood. Instead, the individual in its relation to the other or others has been studied in phenomenology and the philosophy of dialogue of the twentieth century. In the following essay I focus on Martin Buber’s and Jean-Paul Sartre’s theories of intersubjectivity which I use in order to explore the meaning of recognition and disrespect for an individual. They offer a valuable contribution to questions of practical philosophy and the socio-philosophical diagnosis of our time.

Whither the people in the ASEAN Community?

2020 ◽  
Vol 10 (3) ◽  
pp. 43-57
Author(s):  
See Seng Tan
Keyword(s):  
Southeast Asia ◽  
Political Ideology ◽  
Management Development ◽  
The Other ◽  
Asean Member ◽  
Derechos Humanos ◽  
The People ◽  
Droits Humains ◽  
The One ◽  
The Individual

Abstract: The longstanding effort to develop a people-based regionalism in Southeast Asia has been shaped by an inherent tension between the liberal inclination to privilege the individual and the community under formation, on the one hand, and the realist insistence on the primacy of the state, on the other. This article explores the conditions and constraints affecting ASEAN’s progress in remaking Southeast Asia into a people-focused and caring community in three areas: disaster management, development, and democratization (understood here as human rights). Arguably, the persistent gap in Southeast Asia between aspiration and expectation is determined less by political ideology than by the pragmatic responses of ASEAN member states to the forces of nationalism and protectionism, as well as their respective sense of local and regional responsibility.Resumen: El esfuerzo histórico para desarrollar un regionalismo basado en las personas del sudeste de Asia ha estado marcado por una tensión fundamental entre la inclinación liberal de privilegiar el individuo y la comunidad y la insistencia realista sobre la primacía del estado. Este artículo explora las condiciones y limitaciones que afectan el progreso de la ASEAN en la reestructuración de Asia sudoriental en una comunidad centrada en el cuidado de las personas en: gestión de desastres, desarrollo y democratización (i.e., derechos humanos). La brecha persistente en el sudeste asiático entre la aspiración y la expectativa está determinada por las respuestas pragmáticas de los miembros de la ASEAN sometidos a las fuerzas del nacionalismo y proteccionismo, así como su respectivo sentido de responsabilidad local y regional.Résumé: L’effort historique pour développer un régionalisme fondé sur les peuples en Asie du Sud-Est a été marqué par une tension fondamentale entre l’inclination libérale qui privilégie, d’une part, l’individu et la communauté et, d’autre part, l’insistance réaliste sur la primauté de l’État. Cet article explore les conditions et les contraintes qui nuisent aux progrès de l’ANASE dans le cadre d’une refonte de l’Asie du Sud-Est en une communauté centrée et attentive aux peuples dans trois domaines : la gestion des désastres, le développement et la démocratisation (en référence aux droits humains). Le fossé persistant en Asie du Sud-Est entre les aspirations et les attentes est vraisemblablement moins déterminé par l’idéologie politique que par les réponses pragmatiques des États membres de l’ANASE soumis aux forces du nationalisme et du protectionnisme ainsi que par leur sens respectif de la responsabilité locale et régionale.

Ummah’s Rights or Human Rights? Universalism, Individualism, and Islamic Ethics in the Twenty-first Century

2010 ◽  
Vol 27 (3) ◽  
pp. 1-23 ◽  
Author(s):  
Marie-Luisa Frick
Keyword(s):  
Human Rights ◽  
First Century ◽  
The Other ◽  
Moral Code ◽  
Bill Of Rights ◽  
Islamic Ethics ◽  
Specific Content ◽  
Societal Needs ◽  
The One ◽  
The Individual

Against the background of the trend of Islamizing human rights on the one hand, as well as increasing skepticism about the compatibility of Islam and human rights on the other, I intend to analyze the potential of Islamic ethics to meet the requirements for vitalizing the idea of human rights. I will argue that the compatibility of Islam and human rights cannot be determined merely on the basis of comparing the specific content of the Islamic moral code(s) with the rights stipulated in the International Bill of Rights, but by scanning (different conceptions of) Islamic ethics for the two indispensable formal prerequisites of any human rights conception: the principle of universalism (i.e., normative equality) and individualism (i.e., the individual enjoyment of rights). In contrast to many contemporary (political) attempts to reconcile Islam and human rights due to urgent (global) societal needs, this contribution is solely committed to philosophical reasoning. Its guiding questions are “What are the conditions for deriving both universalism and individualism from Islamic ethics?” and “What axiological axioms have to be faded out or reorganized hierarchically in return?”

Performance of Ag-HZSM-5 Zeolite Catalysts in n-heptane Conversion

2017 ◽  
Vol 68 (1) ◽  
pp. 116-120
Author(s):  
Iuliean Vasile Asaftei ◽  
Neculai Catalin Lungu ◽  
Lucian Mihail Birsa ◽  
Ioan Gabriel Sandu ◽  
Laura Gabriela Sarbu ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Metal Content ◽  
Pulse Method ◽  
Acid Strength ◽  
Strength Distribution ◽  
Zeolite Catalysts ◽  
Benzene Toluene ◽  
Acid Strength Distribution ◽  
Silver Cations ◽  
Heptane Conversion

The conversion of n-heptanes into aromatic hydrocarbons benzene, toluene and xylenes (BTX), by the chromatographic pulse method in the temperature range of 673 - 823K was performed over the HZSM-5 and Ag-HZSM-5 zeolites modified by ion exchange with AgNO3 aqueous solutions. The catalysts, HZSM-5 (SiO2/Al2O3 = 33.9), and Ag-HZSM-5 (Ag1-HZSM-5 wt. % Ag1.02, Ag2-HZSM-5 wt. % Ag 1.62; and Ag3-HZSM-5 wt. % Ag 2.05 having different acid strength distribution exhibit a conversion and a yield of aromatics depending on temperature and metal content. The yield of aromatic hydrocarbons BTX appreciably increased by incorporating silver cations Ag+ into HZSM-5.

Assessment of Pain During Laser-based Procedures in the Treatment of Glaucoma

2019 ◽  
Vol 70 (6) ◽  
pp. 2105-2107
Author(s):  
Gheorghita Popa ◽  
Olimpiu L. Karancsi ◽  
Maria Alexandra Preda ◽  
Marius Cristian Suta ◽  
Lavinia Stelea ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Pain Score ◽  
The Other ◽  
Study Group ◽  
Moderate Pain ◽  
Pain Level ◽  
Analog Scale ◽  
Intense Pain ◽  
The Individual ◽  
Individual Information

Our study aimed to determine pain levels and the state of welfare connected to laser-based procedures in the treatment of patients diagnosed with uncontrolled glaucoma. The study group included 100 eyes of 100 patients diagnosed with glucoma, 50 of them being treated with micropulse transscleral laser cyclophotocoagulation, and the other 50 eyes being treated with continuous transscleral laser cyclophotocoagulation. We used visual analog scale to gather information from each patient. After analysing the individual information the following results were obtained: the pain level for the micropulse transscleral laser cyclophotocoagulation was 60.23 mm, signifying moderate pain; and the pain score for the continuous transscleral laser cyclophotocoagulation was 76.34 mm, corresponding to moderate-intense pain. Pain level generated by minimally invasive laser procedures is discussed.

Modeling mass transfer and substrate utilization in the boundary layer of biofilm systems

1998 ◽  
Vol 37 (4-5) ◽  
pp. 139-147 ◽  
Author(s):  
Harald Horn ◽  
Dietmar C. Hempel
Keyword(s):  
Boundary Layer ◽  
Mass Transfer ◽  
Reynolds Number ◽  
Film Theory ◽  
Substrate Utilization ◽  
The Other ◽  
Concentration Profiles ◽  
Hydrodynamic Conditions ◽  
Time Axis ◽  
Transfer Coefficients

The use of microelectrodes in biofilm research allows a better understanding of intrinsic biofilm processes. Little is known about mass transfer and substrate utilization in the boundary layer of biofilm systems. One possible description of mass transfer can be obtained by mass transfer coefficients, both on the basis of the stagnant film theory or with the Sherwood number. This approach is rather formal and not quite correct when the heterogeneity of the biofilm surface structure is taken into account. It could be shown that substrate loading is a major factor in the description of the development of the density. On the other hand, the time axis is an important factor which has to be considered when concentration profiles in biofilm systems are discussed. Finally, hydrodynamic conditions become important for the development of the biofilm surface when the Reynolds number increases above the range of 3000-4000.

Laughter on the Fringes

2019 ◽  
Author(s):  
Anna Peterson
Keyword(s):  
The Other ◽  
Literary Canon ◽  
Autobiographical Writing ◽  
Treasure Trove ◽  
Old Comedy ◽  
Other Hand ◽  
Aggressive Humor ◽  
The One ◽  
The Individual ◽  
The Impact

This book examines the impact that Athenian Old Comedy had on Greek writers of the Imperial era. It is generally acknowledged that Imperial-era Greeks responded to Athenian Old Comedy in one of two ways: either as a treasure trove of Atticisms, or as a genre defined by and repudiated for its aggressive humor. Worthy of further consideration, however, is how both approaches, and particularly the latter one that relegated Old Comedy to the fringes of the literary canon, led authors to engage with the ironic and self-reflexive humor of Aristophanes, Eupolis, and Cratinus. Authors ranging from serious moralizers (Plutarch and Aelius Aristides) to comic writers in their own right (Lucian, Alciphron), to other figures not often associated with Old Comedy (Libanius) adopted aspects of the genre to negotiate power struggles, facilitate literary and sophistic rivalries, and provide a model for autobiographical writing. To varying degrees, these writers wove recognizable features of the genre (e.g., the parabasis, its agonistic language, the stage biographies of the individual poets) into their writings. The image of Old Comedy that emerges from this time is that of a genre in transition. It was, on the one hand, with the exception of Aristophanes’s extant plays, on the verge of being almost completely lost; on the other hand, its reputation and several of its most characteristic elements were being renegotiated and reinvented.

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