Assessing Ecotoxicity in Marine Environment Using Luminescent Microalgae: Where Are We At?

Author(s): Sophie Sanchez-Ferandin

Nowadays, microalgae are particularly used to assess the environmental impact of contaminants in aquatic systems. Naturally present in some algal species, bioluminescence is highly used in application fields related to environmental monitoring. Bioluminescent dinoflagellates have played a pivotal role in this domain. When exposed to heavy metals or toxic organic compounds, bioluminescent dinoflagellates have the capacity to decrease light emission. In addition, new molecular tools allow Continue reading

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The Lines of Lyman and the Titus-Bode Law Preferred Orbital of a Celestial Body

Author(s): Raoul Charreton

We have proposed, thanks to a new model of the hydrogen atom [1], some explanation of the lines observed by Lyman in the spectrographic analysis of this atom. The model is based on a prequantum physics, itself founded on classical mechanics completed by the existence of a universal cloud of tiny particles called U. This cloud induces simultaneously and similarly electromagnetic and gravitational effects. This common origin creates a narrow link between how planets are arranged in Continue reading

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Migratory Phenomenons, Bioethics and Vaccinations

Author(s): Giulio Tarro

The evolution of the HIV following migratory phenomenons is reported in an interesting study carried on for 15 years. Polymerase Chain Reaction (PCR) is a technique in molecular biology that amplifies a specific region of deoxyribonucleic acid (DNA), and has been useful in the molecular characterization of viruses as poxviruses. In many countries, such as Italy,the vaccinations are included in the so-called sanitary obliged not coercive treatments. This means that the obligation is anticipated for all Continue reading

61 total views, 7 views today

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Possible Duplicities of Five Asteroids

Author(s): Isao Satō, Hiromi Hamanowa, Hiroyuki Tomioka, Sadaharu Uehara

Some evidences of possible duplicities of five asteroids are presented. A satellite of (279) Thule was convincingly detected by a stellar occultation on 2008 April 3 by Thule and also from follow-up light curve observations. The orbital period of the satellite is 3.007 or 6.014 days, and the minimum diameter is estimated to be 52 km. A satellite of (324) Bamberga was detected by secondary drops of the light curve in 2007. The rotation period of the primary is 1.22625 days, and the revolution Continue reading

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How Far Can a Biased Random Walker Go?

Author(s): Zhongjin Yang, Cassidy Yang

The random walk (RW) is a very important model in science and engineering researches. It has been studied over hundreds years. However, there are still some overlooked problems on the RW. Here, we study the mean absolute distance of an N-step biased random walk (BRW) in a d-dimensional hyper-cubic lattice. In this short paper, we report the exact results for d = 1 and approximation formulae for d ≥ 2. Continue reading

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Survival Rates Following Skeletal Metastases―A Twenty-Year Analysis

Author(s) : Mohannad B. Ammori, Sunil Panchani, Jonathan J. Gregory, James Wylie, Ashok Pau


Incidence of metastases and pathological fracture to each skeletal component. Data shown represent number of patients with metastases (pathological fracture), n = 97.

Skeletal metastases are often indicative of an advanced stage of cancer and generally reflect a poor prognosis. Information available regarding the survival following the diagnosis of metastatic bone disease is variable throughout the literature and focused upon the site of the primary malignancy, the skeletal metastases and a variety of other factors.

Previous studies have identified the site of the primary malignancy, presence of visceral metastases and the complication of a pathological fracture Continue reading

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Academic and Professional Guidance for Tertiary Students with Disabilities: Gathering Best Practices throughout European Universities

Author(s):Leonardo Santos Amâncio Cabral, Enicéia Gonçalves Mendes , Lucia de Anna, Serge Ebersold

The exponential increase of students with disabilities enrolled at universities of different countries has urged these institutions to enable some services geared to their guidance, both academic and professional level. However, the international literature shows that these initiatives, in some realities, are still disconnected from the broader socio-economic context. In order to find possible solutions to this issue, the objective of this research was to explore, in an international level, initiatives related to Continue reading

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Application of Social Computing to Collaborative Web Search

Author(s): Chenn-Jung Huang, Heng-Ming Chen, Shun-Chih Chang, Sheng-Yuan Chien

Recently, e-learning has been paid much attention in the area of education. However, it is difficult for the low-achievement students to find out the key points and keywords while searching online articles. They usually cannot accurately obtain the website information even after searching for large amount of data in the Internet. Meanwhile, these low-achievement students often lack of the related Continue reading

76 total views, 4 views today

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Is Blended Learning Making Us Stupid, Too?

Author(s): Ray Archee

The title of this paper echoes Nicholas Carr’s (2008) article, Is Google Making Us Stupid?, which evoked heated debate around the issue of whether the Internet was having negative effects upon human concentration and learning. While this paper agrees that blended learning has the same issues as the Internet, blended learning is under the control of organizations, institutions, instructors and students. Whether our brains are being changed for better or worse is not the critical question, Continue reading

78 total views, 3 views today

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The Energy Conservation Paradox of Quantum Physics

Author(s): V. E. Shapiro

This work asserts that quantum theory runs into a fundamental conflict with the principles of energy conservation inferred from the statistical evolution of interacting systems. The gist is the energy of systems by the principles of Lagrangian mechanics leaves out of account their energy associated with the phase flows of non-invariant phase volume. The quantum theory takes this fact into account, but does that improperly. We show it by presenting insoluble inconsistencies and a case study. Continue reading

93 total views, 10 views today

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