Log in

Relevant bibliographies by topics / Theoretical lenses / Journal articles

To see the other types of publications on this topic, follow the link: Theoretical lenses.

Journal articles on the topic 'Theoretical lenses'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Theoretical lenses.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Danaan, Victoria Voelwoen. "Analysing Poverty in Nigeria through Theoretical Lenses." Journal of Sustainable Development 11, no. 1 (January 30, 2018): 20. http://dx.doi.org/10.5539/jsd.v11n1p20.

Full text

Abstract:

Various indicators suggest that poverty is a major obstacle to Nigeria’s socio-economic development. Poverty has persisted and several interventions have failed to yield significant improvement in Nigeria’s Human Development Index even in periods of economic growth. Plagued with the challenges of unemployment crises, climate change, conflict, fragility and violence, Nigeria (the most populous country in Africa) stands at a grave risk if poverty is not tackled. This paper explores seven theories of poverty in literature: The Culture of Poverty, Individual Deficiency Theory, Progressive Social Theory, Geographical Disparities Theory, Cyclical Interdependence Theory, Poverty Individualisation and the Theory of Social Exclusion /Cumulative Disadvantage. It reviews these theories by employing a qualitative and descriptive research approach in order to broaden the understanding of the complexities of the phenomenon of poverty from a global worldview and examine how these relate to the nature of poverty in Nigeria. It corroborates the fact that poverty in Nigeria is complex and multidimensional in its conceptualization and measurement, encompassing economic, social, cultural and psychological indicators. The paper therefore attempts to explore the phenomenon of poverty within the Nigerian context by examining these theoretical paradigms. It suggests an understanding of underlying causal factors of poverty in designing pro-poor programmes and a hydra-headed approach to tackle its menace effectively and progressively. It argues that poverty reduction is realizable by empowering people to develop resilience to cope and overcome it within the scope of their resources and capabilities.

APA, Harvard, Vancouver, ISO, and other styles

2

Cao, Zhe, Xianwei Shi, Erkko Autio, Jonathan Levie, and Rosemarie Ziedonis. "Entrepreneurial Ecosystems: Theoretical Lenses and Policy Challenges." Academy of Management Proceedings 2019, no. 1 (August 1, 2019): 18490. http://dx.doi.org/10.5465/ambpp.2019.18490symposium.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

WEISSMAN, BARRY A. "Theoretical Optics of Toric Hydrogel Contact Lenses." Optometry and Vision Science 63, no. 7 (July 1986): 535–38. http://dx.doi.org/10.1097/00006324-198607000-00006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Seife, C. "THEORETICAL PHYSICS: Offbeat Lenses Promise Perfect Fidelity." Science 290, no. 5494 (November 10, 2000): 1066a—1066. http://dx.doi.org/10.1126/science.290.5494.1066a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Halloin, Hubert, and Pierre Bastie. "Laue diffraction lenses for astrophysics: Theoretical concepts." Experimental Astronomy 20, no. 1-3 (September 26, 2006): 151–70. http://dx.doi.org/10.1007/s10686-006-9064-z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Harmancioglu, Nukhet, Cornelia Droge, and Roger J. Calantone. "Theoretical lenses and domain definitions in innovation research." European Journal of Marketing 43, no. 1/2 (February 13, 2009): 229–63. http://dx.doi.org/10.1108/03090560910923319.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Jung, Sandy, Liam Ennis, and L. Alvin Malesky,. "Child Pornography Offending Seen Through Three Theoretical Lenses." Deviant Behavior 33, no. 8 (July 3, 2012): 655–73. http://dx.doi.org/10.1080/01639625.2011.636726.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Janssen, Catherine, and Joëlle Vanhamme. "Theoretical Lenses for Understanding the CSR–Consumer Paradox." Journal of Business Ethics 130, no. 4 (March 1, 2014): 775–87. http://dx.doi.org/10.1007/s10551-014-2111-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Zhao, Cun Hua. "Research on Silicone Zoom Lens Group to Keep Image Surface Stable." Applied Mechanics and Materials 303-306 (February 2013): 2806–10. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.2806.

Full text

Abstract:

In micro lens, the adaptive lenses are potential breakout in the future. The adaptive liquid lenses had been reported in several literatures. However, it’s regret for existing adaptive liquid lenses who can’t realize zoom synchronously keeping the image surface stable. For solving the problem a pair of all-silicone lenses called lens group was put forward. The lens group was firstly fabricated and assembled. The lens group was researched from theoretical calculation to find the synchronous relation between the front lens and the back lens. At last the lens group was seriously tested including its total focal lengths and image surface drifts. The theoretical researches and the testing result testified the all-silicone lens group was possible to facilitate the adaptive lens into applications.

APA, Harvard, Vancouver, ISO, and other styles

10

Othman, Sarina, and William G. Borges. "Theoretical Lenses of Shareholder Activism and Communication: A Review." Advanced Science Letters 21, no. 6 (June 1, 2015): 1624–27. http://dx.doi.org/10.1166/asl.2015.6129.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Sottini, S., and E. Giorgetti. "Theoretical analysis of a new family of geodesic lenses." Journal of the Optical Society of America A 4, no. 2 (February 1, 1987): 346. http://dx.doi.org/10.1364/josaa.4.000346.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Robinson‐Pant, Anna, Paul Morris, and Yusuf Sayed. "Developing alternative theoretical lenses on educational policy and practice." Compare: A Journal of Comparative and International Education 40, no. 5 (September 2010): 557–60. http://dx.doi.org/10.1080/03057925.2010.502643.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Akondi, Vyas, Carlos Dorronsoro, Enrique Gambra, and Susana Marcos. "Temporal multiplexing to simulate multifocal intraocular lenses: theoretical considerations." Biomedical Optics Express 8, no. 7 (June 23, 2017): 3410. http://dx.doi.org/10.1364/boe.8.003410.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Newbury, Peter R., and Raymond J. Spiteri. "Inverting Gravitational Lenses." SIAM Review 44, no. 1 (January 2002): 111–30. http://dx.doi.org/10.1137/s0036144500380934.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Rocha Azevedo, Dora Savoldi da. "Postcolonial Pragmatics: Changing lenses." Revista da ABRALIN 19, no. 2 (September 10, 2020): 1–5. http://dx.doi.org/10.25189/rabralin.v19i2.1656.

Full text

Abstract:

Seeking to account for the specificities of interactions in postcolonial societies contexts, Eric Anchimbe and Richard Janney (2010) developed the Postcolonial Pragmatics framework, which was the topic of Anchimbe’s homonymous lecture in Abralin ao vivo. As a result of colonization and the consequent mixture between indigenous and colonizers ways of life, postcolonial settings are marked by hybridized forms of concepts, language, social norms, and speech (e.g. code-mixing and code-switching), thus leading to communication strategies which have been shaped by these heterogeneous environments. Postcolonial Pragmatics consists of a framework based on an emic perspective which aims at taking into account the hybrid settings found in postcolonial societies in pragmatic analysis. Anchimbe presents us with a new theoretical lens through which phenomena drawn from these hybrid settings are considered central to the Pragmatics’ enterprise.

APA, Harvard, Vancouver, ISO, and other styles

16

Canning, John. "Conceptualising student voice in UK higher education: four theoretical lenses." Teaching in Higher Education 22, no. 5 (December 27, 2016): 519–31. http://dx.doi.org/10.1080/13562517.2016.1273207.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

A Piers, Patricia, Henk A Weeber, Pablo Artal, and Sverker Norrby. "Theoretical Comparison of Aberration-correcting Customized and Aspheric Intraocular Lenses." Journal of Refractive Surgery 23, no. 4 (April 1, 2007): 374–84. http://dx.doi.org/10.3928/1081-597x-20070401-10.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Piper, Jörg. "Mirror lenses in light microscopy-Theoretical considerations and practical implications." Microscopy Research and Technique 73, no. 7 (November 25, 2009): 681–93. http://dx.doi.org/10.1002/jemt.20809.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Lövheim, Mia, and Heidi A. Campbell. "Considering critical methods and theoretical lenses in digital religion studies." New Media & Society 19, no. 1 (January 2017): 5–14. http://dx.doi.org/10.1177/1461444816649911.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Radaelli, Claudio M., and Claire A. Dunlop. "Learning in the European Union: theoretical lenses and meta-theory." Journal of European Public Policy 20, no. 6 (June 2013): 923–40. http://dx.doi.org/10.1080/13501763.2013.781832.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Zhou, Jiazuo, Changfu Wei, Houzhen Wei, and Long Tan. "Experimental and theoretical characterization of frost heave and ice lenses." Cold Regions Science and Technology 104-105 (August 2014): 76–87. http://dx.doi.org/10.1016/j.coldregions.2014.05.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Bruton, Garry D., Shaker A. Zahra, and Li Cai. "Examining Entrepreneurship Through Indigenous Lenses." Entrepreneurship Theory and Practice 42, no. 3 (November 22, 2017): 351–61. http://dx.doi.org/10.1177/1042258717741129.

Full text

Abstract:

This commentary argues that scholars need an alternative to the dominance in academic research of the U.S. model of entrepreneurship to reflect better the variety and diversity of entrepreneurial activities around the globe. Using the example of China, today the world’s second-largest economy, we discuss how researchers miss key elements of entrepreneurship because of their over-reliance on the U.S. model of entrepreneurship for analysis, espousing Western-based theoretical values and foundations. We discuss how researchers and journals can promote future research efforts focusing on indigenous entrepreneurship activities, applying indigenously developed theory.

APA, Harvard, Vancouver, ISO, and other styles

23

Kolodziej, Tomasz, Stanislav Stoupin, Walan Grizolli, Jacek Krzywinski, Xianbo Shi, Kwang-Je Kim, Jun Qian, Lahsen Assoufid, and Yuri Shvyd'ko. "Efficiency and coherence preservation studies of Be refractive lenses for XFELO application." Journal of Synchrotron Radiation 25, no. 2 (February 14, 2018): 354–60. http://dx.doi.org/10.1107/s160057751701699x.

Full text

Abstract:

Performance tests of parabolic beryllium refractive lenses, considered as X-ray focusing elements in the future X-ray free-electron laser oscillator (XFELO), are reported. Single and double refractive lenses were subject to X-ray tests, which included: surface profile, transmissivity measurements, imaging capabilities and wavefront distortion with grating interferometry. Optical metrology revealed that surface profiles were close to the design specification in terms of the figure and roughness. The transmissivity of the lenses is >94% at 8 keV and >98% at 14.4 and 18 keV. These values are close to the theoretical values of ideal lenses. Images of the bending-magnet source obtained with the lenses were close to the expected ones and did not show any significant distortion. Grating interferometry revealed that the possible wavefront distortions produced by surface and bulk lens imperfections were on the level of ∼λ/60 for 8 keV photons. Thus the Be lenses can be succesfully used as focusing and beam collimating elements in the XFELO.

APA, Harvard, Vancouver, ISO, and other styles

24

Ritt, Gunnar, Bastian Schwarz, and Bernd Eberle. "Estimation of Lens Stray Light with Regard to the Incapacitation of Imaging Sensors." Sensors 20, no. 21 (November 5, 2020): 6308. http://dx.doi.org/10.3390/s20216308.

Full text

Abstract:

We present our efforts on estimating light scattering characteristics from commercial off-the-shelf (COTS) camera lenses in order to deduce thereof a set of generic scattering parameters valid for a specific lens class (double Gauss lenses). In previous investigations, we developed a simplified theoretical light scattering model to estimate the irradiance distribution in the focal plane of a camera lens. This theoretical model is based on a 3-parameter bidirectional scattering distribution function (BSDF), which describes light scattering from rough surfaces of the optical elements. Ordinarily, the three scatter parameters of the BSDF are not known for COTS camera lenses, which makes it necessary to assess them by own experiments. Besides the experimental setup and the measurement process, we present in detail the subsequent data exploitation. From measurements on seven COTS camera lenses, we deduced a generic set of scatter parameters. For a deeper analysis, the results of our measurements have also been compared with the output of an optical engineering software. Together with our theoretical model, now stray light calculations can be accomplished even then, when specific scatter parameters are not available from elsewhere. In addition, the light scattering analyses also allow considering the glare vulnerability of optical systems in terms of laser safety.

APA, Harvard, Vancouver, ISO, and other styles

25

Broadie, S. "Aristotle Through Lenses from Bernard Williams." Royal Institute of Philosophy Supplement 78 (July 2016): 23–35. http://dx.doi.org/10.1017/s1358246116000242.

Full text

Abstract:

AbstractThis paper looks at a theme in ancient Greek ethics from perspectives developed by Bernard Williams.1 The ancient theme is the place of theoretical activity in human life, and I shall be referring to Aristotle. Williams is relevant through one strand in his scepticism about ‘morality, the peculiar institution’.2 His discussion suggests questions not merely about Aristotle but ones it would be interesting to put to Aristotle and see how he would or should respond to them.

APA, Harvard, Vancouver, ISO, and other styles

26

Le Zichun, 乐孜纯, 董文 Dong Wen, 刘魏 Liu Wei, 张明 Zhang Ming, 全必胜 Quan Bisheng, 梁静秋 Liang Jingqiu, 朱佩平 Zhu Peiping, 伊福廷 Yi Futing, and 黄万霞 Huang Wanxia. "Theoretical and Experimental Study of Extremely Long Compound Refractive XRay Lenses." Acta Optica Sinica 30, no. 9 (2010): 2696–702. http://dx.doi.org/10.3788/aos20103009.2696.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Pyfer, M. F. "Theoretical Performance of Intraocular Lenses Correcting Both Spherical and Chromatic Aberration." Yearbook of Ophthalmology 2012 (January 2012): 30–31. http://dx.doi.org/10.1016/j.yoph.2012.06.010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Berge, Maria, and Åke Ingerman. "Multiple theoretical lenses as an analytical strategy in researching group discussions." Research in Science & Technological Education 35, no. 1 (November 14, 2016): 42–57. http://dx.doi.org/10.1080/02635143.2016.1245657.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Weeber, Henk A., and Patricia A. Piers. "Theoretical Performance of Intraocular Lenses Correcting Both Spherical and Chromatic Aberration." Journal of Refractive Surgery 28, no. 1 (November 10, 2011): 48–52. http://dx.doi.org/10.3928/1081597x-20111103-01.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Joseph, Rigaud. "The welfare/self-sufficiency gap among single mothers through theoretical lenses." Journal of Human Behavior in the Social Environment 28, no. 6 (April 5, 2018): 731–45. http://dx.doi.org/10.1080/10911359.2018.1458678.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Iskander, Morkos. "Simulation Training in Medical Education—an Exploration Through Different Theoretical Lenses." Medical Science Educator 29, no. 2 (February 6, 2019): 593–97. http://dx.doi.org/10.1007/s40670-019-00696-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Jerolmack, Colin, and Shamus Khan. "The Analytic Lenses of Ethnography." Socius: Sociological Research for a Dynamic World 3 (January 1, 2017): 237802311773525. http://dx.doi.org/10.1177/2378023117735256.

Full text

Abstract:

It is almost axiomatic that there are two contrasting theoretical approaches to ethnography: induction and deduction. However, regardless of whether ethnographers build theory from observations (induction) or use observations to test theory (deduction), they approach the field armed with one or more particular analytic lens that leads them to focus on a distinct thread of the social fabric. We outline the suite of analytic lenses that typify ethnography and identify eight ideal types. Though not mutually exclusive, they can be usefully grouped and contrasted accordingly: (1) the level of explanation: micro, organizational, and macro; (2) the subject of explanation: people and places and mechanisms; (3) the location of explanation: dispositions and situations; and (4) reflexivity. We specify the basic modes of analysis that typify each ideal type, trace their implications for how one selects units of observation, and demonstrate how these different ethnographic styles illuminate different dimensions of the social world.

APA, Harvard, Vancouver, ISO, and other styles

33

Silcox, John. "The Emergence of Aberration Correctors for Electron Lenses." Microscopy Today 10, no. 3 (May 2002): 8–9. http://dx.doi.org/10.1017/s1551929500057977.

Full text

Abstract:

In 1936, Otto Scherzer published his famous theoretical paper on the correction of aberrations in round magnetic electron lenses. For fundamental reasons, the aberration coefficients are positive and to introduce negative corrections, the electron optical elements have to produce either charges or poles on the optic axis, or contain a mirror or be a multipole system. In 1997, three papers appeared with actual demonstrations of the correction of aberrations in imaging lenses, probe forming lenses and electron mirrors. It took almost two thirds of a century for this seemingly straightforward development to occur and for the promise of wavelength limited electron imaging to emerge as a practical proposition.

APA, Harvard, Vancouver, ISO, and other styles

34

Saward, Michael. "Theorizing about Democracy." Democratic Theory 6, no. 2 (December 1, 2019): 1–11. http://dx.doi.org/10.3167/dt.2019.060202.

Full text

Abstract:

How can we theorize about democracy? We can identify the major topics that form the focus of democratic theorists (and others traversing the field), such as democracy’s meaning and value. This article focuses on the methodological lenses through which the topics have been and can be viewed. Different lenses bring into focus different phenomena, questions, and problems of democracy. It is argued that the lenses that bring conventional democratic theory approaches into view can provide an unnecessarily narrow and restrictive perspective. Donning different methodological lenses can introduce alternative perspectives, such as renewed attention to value pluralism and the “everyday.” The article sketches four “circles” that capture different potential types of and sources for theoretical work, some of them radically unconventional. It concludes by discussing the specific example of how methods and assumptions of design theory can prompt promising new approaches to theorizing about democracy.

APA, Harvard, Vancouver, ISO, and other styles

35

Pérez-López, Sergio, Daniel Tarrazó-Serrano, Dimitry O. Dolmatov, Constanza Rubio, and Pilar Candelas. "Transient Analysis of Fresnel Zone Plates for Ultrasound Focusing Applications." Sensors 20, no. 23 (November 29, 2020): 6824. http://dx.doi.org/10.3390/s20236824.

Full text

Abstract:

Fresnel Zone Plates are planar lenses that can be used to focus ultrasound beams. This kind of acoustic lenses can play a key role in the resolution of ultrasonic NDT systems. In this type of pulse-echo applications, the pulse duration is an important parameter that specifies the axial resolution, and thus, shorter ultrasound pulses provide higher resolutions. However, acoustic lenses exhibit a transient response that should be considered when setting the pulse duration, as pulses shorter than the transient state duration result in degradation in the response of acoustic lenses in terms of focal intensity, focal displacement, and lateral and axial resolutions. In this work, a thorough analysis of the transient response of Fresnel Zone Plates is discussed, demonstrating that the transient state should be considered in order to achieve optimal focusing performance. Theoretical and numerical results are presented, showing very good agreement.

APA, Harvard, Vancouver, ISO, and other styles

36

Boukef, Nabila, and Mohamed Hédi Charki. "The Millefeuille theory revisited. New theoretical lenses to understand the Millefeuille effect." Systèmes d'information & management 24, no. 2 (2019): 47. http://dx.doi.org/10.3917/sim.192.0047.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Malak, Siti Seri Delima Abdul, Ooi Sue Chern, and Nor Afifah Shabani. "Disclosure of Executive Directors’ Remuneration from Multiple Theoretical Lenses and Cultural Perspective." Advanced Science Letters 23, no. 4 (April 1, 2017): 3151–54. http://dx.doi.org/10.1166/asl.2017.7681.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Swain, Ajaya K., Qing Ray Cao, and William L. Gardner. "Six Sigma success: Looking through authentic leadership and behavioral integrity theoretical lenses." Operations Research Perspectives 5 (2018): 120–32. http://dx.doi.org/10.1016/j.orp.2018.04.001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Yannopapas, Vassilios, and Nikolay V. Vitanov. "All-optical nanotraps for atoms atop flat metamaterial lenses: a theoretical study." Journal of Physics: Condensed Matter 21, no. 24 (May 21, 2009): 245901. http://dx.doi.org/10.1088/0953-8984/21/24/245901.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Gailing, Ludger, and Markus Leibenath. "The Social Construction of Landscapes: Two Theoretical Lenses and Their Empirical Applications." Landscape Research 40, no. 2 (July 23, 2013): 123–38. http://dx.doi.org/10.1080/01426397.2013.775233.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Martin, Heiner, Olga Sahmel, Thomas Eickner, Niels Grabow, Christine Kreiner, and Rudolf Guthoff. "Determination of the hyperelastic material behavior of hydrogel specimens for expandable lens implants." Current Directions in Biomedical Engineering 5, no. 1 (September 1, 2019): 351. http://dx.doi.org/10.1515/cdbme-2019-0088.

Full text

Abstract:

Abstract Theoretical and experimental investigations were carried out for development of human lens implants made from hydrogel material. The material properties were measured and implemented in a Finite element model. Though the material is still too stiff for accommodative lenses, the theoretical and experimental foundations for the implant development were established.

APA, Harvard, Vancouver, ISO, and other styles

42

Rykowska, Iwona, Iwona Nowak, and Rafał Nowak. "Soft Contact Lenses as Drug Delivery Systems: A Review." Molecules 26, no. 18 (September 14, 2021): 5577. http://dx.doi.org/10.3390/molecules26185577.

Full text

Abstract:

This review describes the role of contact lenses as an innovative drug delivery system in treating eye diseases. Current ophthalmic drug delivery systems are inadequate, particularly eye drops, which allow about 95% of the active substance to be lost through tear drainage. According to the literature, many interdisciplinary studies have been carried out on the ability of contact lenses to increase the penetration of topical therapeutic agents. Contact lenses limit drug loss by releasing the medicine into two layers of tears on either side of the contact lens, eventually extending the time of contact with the ocular surface. Thanks to weighted soft contact lenses, a continuous release of the drug over an extended period is possible. This article reviewed the various techniques to deliver medications through contact lenses, examining their advantages and disadvantages. In addition, the potential of drug delivery systems based on contact lenses has been extensively studied.

APA, Harvard, Vancouver, ISO, and other styles

43

Lehman, Amanda, and Sophie Jo Miller. "A Theoretical Conversation about Responses to Information Overload." Information 11, no. 8 (July 28, 2020): 379. http://dx.doi.org/10.3390/info11080379.

Full text

Abstract:

In this study, information overload is viewed through the lenses of Library & Information Science and Communication Theory in order to offer recommended solutions for individuals experiencing overload. The purpose of this research was to apply LIS and COMM theories to the pathologies and symptoms of information overload as experienced by individuals in an increasingly digital world. Extant survey work was reviewed and updated with literature collected through limited keyword searches. The authors framed active responses to information overload through dimensions selected from the European Commission’s Digital Competence Framework as applied to Al-Shboul & Abrizah’s (2016) Modes of Information Seeking. Further study should focus on international perspectives and addressing disparities in access to information.

APA, Harvard, Vancouver, ISO, and other styles

44

Hightower, Kenneth R., Janet P. Mccready, and Doug Borchman. "MEMBRANE DAMAGE IN UV-IRRADIATED LENSES." Photochemistry and Photobiology 59, no. 4 (April 1994): 485–90. http://dx.doi.org/10.1111/j.1751-1097.1994.tb05069.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Yao, Lv, Zhang, Wang, Xie, Zhu, Deng, and Zhuo. "Effect of Elastic Modulus on the Accuracy of the Finite Element Method in Simulating Precision Glass Molding." Materials 12, no. 22 (November 18, 2019): 3788. http://dx.doi.org/10.3390/ma12223788.

Full text

Abstract:

Precision glass molding is a revolutionary technology for achieving high precision and efficient manufacturing of glass aspheric lenses. The material properties of glass, including elastic modulus and viscosity, are highly dependent on temperature fluctuations. This paper aims to investigate the effect of elastic modulus on the high-temperature viscoelasticity of glass and the accuracy of the finite element simulation of the molding process for glass aspheric lenses. The high-temperature elastic modulus of D-ZK3L glass is experimentally measured and combined with the glass cylinder compression creep curve to calculate the high temperature viscoelasticity of D-ZK3L. Three groups of viscoelastic parameters are obtained. Based on this, the molding process of the molded aspheric lens is simulated by the nonlinear finite element method (FEM). The surface curves of lenses obtained by simulation and theoretical analyses are consistent. The simulation results obtained at different initial elastic modulus values indicate that the elastic modulus has a great influence on the precision of the FEM-based molding process of glass aspheric lenses.

APA, Harvard, Vancouver, ISO, and other styles

46

Marko, Michael, and Harald Rose. "The Contributions of Otto Scherzer (1909–1982) to the Development of the Electron Microscope." Microscopy and Microanalysis 16, no. 4 (June 22, 2010): 366–74. http://dx.doi.org/10.1017/s143192761000019x.

Full text

Abstract:

AbstractOtto Scherzer was one of the pioneers of theoretical electron optics. He was coauthor of the first comprehensive book on electron optics and was the first to understand that round electron lenses could not be combined to correct aberrations, as is the case in light optics. He subsequently was the first to describe several alternative means to correct spherical and chromatic aberration of electron lenses. These ideas were put into practice by his laboratory and students at Darmstadt and their successors, leading to the fully corrected electron microscopes now in operation.

APA, Harvard, Vancouver, ISO, and other styles

47

Rizza, Carmela. "Un modello di connessione tra finalitŕ strategiche e misure di performance nelle relazioni interorganizzative. Approcci teorici ed evidenze empiriche." MANAGEMENT CONTROL, no. 2 (September 2012): 67–91. http://dx.doi.org/10.3280/maco2012-002004.

Full text

Abstract:

This paper concerns interorganizational performance measurement systems and investigates the connections among strategic aims of interorganizational relationships, information requirements and performance measures used in these contexts. Using the lenses of the main theories explaining the diffusion of interorganizational relationships, we draw the typical information requirements and then we proceed with the identification of the more useful interorganizational performance measures in order to monitor the achievement of the strategic aims. These theoretical considerations are synthesized into a model of connections among strategic aims, information requirements and performance measures. To support this model, a case study was carried out. In this case the strategic aims of each interorganizational relationship are analyzed by employing the different theoretical lenses so as to identify some typical performance measures linked to the strategic aims of each relationships.

APA, Harvard, Vancouver, ISO, and other styles

48

Dwivedula, Ravikiran, Christophe Bredillet, and Ralf Müller. "Work Motivation in Temporary Organizations: Establishing Theoretical Corpus." Management and Organizational Studies 5, no. 3 (July 20, 2018): 29. http://dx.doi.org/10.5430/mos.v5n3p29.

Full text

Abstract:

The purpose of this article is to organize this literature, which will facilitate a systematic investigation of work motivation in temporary organizations. First, we highlight the limitations of current theoretical lenses of work motivation specific to temporary organizations. Second, we synthesize three major theories- Event-Systems (E-S) theory, Socio-Technical Systems (STS) Perspective/Job Design, and Actor-Network Theory (ANT) to establish the theoretical corpus for our proposed model of work motivation. Our model conceptualizes project work characteristics as an ‘Event’ capable of producing an ‘event outcome’ which is work motivation. This is explained using E-S and STS/ Job Design theories. Propositions are introduced. The moderation effect is explained using ANT. Third, we present the academic contribution of our proposed model.

APA, Harvard, Vancouver, ISO, and other styles

49

Anderson, Anthony M., and M. Grae Worster. "Freezing colloidal suspensions: periodic ice lenses and compaction." Journal of Fluid Mechanics 758 (October 14, 2014): 786–808. http://dx.doi.org/10.1017/jfm.2014.500.

Full text

Abstract:

AbstractRecent directional solidification experiments with aqueous suspensions of alumina particles (Anderson & Worster, Langmuir, vol. 28 (48), 2012, pp. 16512–16523) motivate a model for freezing colloidal suspensions that builds upon a theoretical framework developed by Rempel et al. (J. Fluid Mech., vol. 498, 2004, pp. 227–244) in the context of freezing soils. Ice segregates from the suspension at slow freezing rates into discrete horizontal layers of particle-free ice, known as ice lenses. A portion of the particles is trapped between ice lenses, while the remainder are pushed ahead, forming a layer of fully compacted particles separated from the bulk suspension by a sharp compaction front. By dynamically modelling the compaction front, the growth kinetics of the ice lenses are fully coupled to the viscous flow through the evolving compacted layer. We examine the periodic states that develop at fixed freezing rates in a constant, uniform temperature gradient, and compare the results against experimental observations. Congruent with the experiments, three periodic regimes are identified. At low freezing rates, a regular periodic sequence of ice lenses is obtained; predictions for the compacted layer thickness and ice-lens characteristics as a function of freezing rate are consistent with experiments. At intermediate freezing rates, multiple modes of periodic ice lenses occur with a significantly diminished compacted layer. When the cohesion between the compacted particles is sufficiently strong, a sequence of mode-doubling bifurcations lead to chaos, which may explain the disordered ice lenses observed experimentally. Finally, beyond a critical freezing rate, the regime for sustained ice-lens growth breaks down. This breakdown is consistent with the emergence of a distinct regime of ice segregation found experimentally, which exhibits a periodic, banded structure that is qualitatively distinct from ice lenses.

APA, Harvard, Vancouver, ISO, and other styles

50

Filipecka, Katarzyna, Rafał Miedziński, Maciej Sitarz, Jacek Filipecki, and Małgorzata Makowska-Janusik. "Optical and vibrational properties of phosphorylcholine-based contact lenses—Experimental and theoretical investigations." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 176 (April 2017): 83–90. http://dx.doi.org/10.1016/j.saa.2017.01.013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!