Master in Biodiversity and Evolution - UniBo.
Coefficient of Variation (CV)
Beijia Tang BSc candidate advisor ; 2. Sarah Bencivenni MSc candidate advisor 3. Lisa Carrera PhD candidate advisor ; 4. Alessandro de Meo Bachelor; 5. Giacomo Trondoli Bachelor; 6. Martina Mucci Bachelor; 7. Michele Azzarone PhD advisor ; 8. Giuseppina Razzino MSc advisor ; 9. Beatrice Bacchiocchi Bachelor advisor ; Giovanni Sanna Bachelor advisor ; Jacalyn M. Co-conveners: H. Birch, F.
Fiorini, S. Danise, M. Kaminski, D. Scarponi : Palaeontology, Palaeoecology and Evolution of Life. Co-conveners: Rossi V.VA BEGINNERS SERIES: How to Write a Curriculum Vitae Using Google Template
Co-conveners: Zuschin M. Geoitalia SeptemberTorino, Italia.The coefficient of variation CV is a statistical measure of the dispersion of data points in a data series around the mean.
The coefficient of variation represents the ratio of the standard deviation to the mean, and it is a useful statistic for comparing the degree of variation from one data series to another, even if the means are drastically different from one another.
The coefficient of variation shows the extent of variability of data in a sample in relation to the mean of the population. In finance, the coefficient of variation allows investors to determine how much volatility, or risk, is assumed in comparison to the amount of return expected from investments.
Ideally, if the coefficient of variation formula should result in a lower ratio of the standard deviation to mean return, then the better the risk-return trade-off. Note that if the expected return in the denominator is negative or zero, the coefficient of variation could be misleading. For example, an investor who is risk-averse may want to consider assets with a historically low degree of volatility relative to the return, in relation to the overall market or its industry.Naca glider airfoil
Conversely, risk-seeking investors may look to invest in assets with a historically high degree of volatility. While most often used to analyze dispersion around the mean, quartile, quintile, or decile CVs can also be used to understand variation around the median or 10th percentile, for example.
The coefficient of variation formula or calculation can be used to determine the deviation between the historical mean price and the current price performance of a stock, commodity, or bond, relative to other assets.
Below is the formula for how to calculate the coefficient of variation:.
Please note that if the expected return in the denominator of the coefficient of variation formula is negative or zero, the result could be misleading. The coefficient of variation formula can be performed in Excel by first using the standard deviation function for a data set. Next, calculate the mean using the Excel function provided. Since the coefficient of variation is the standard deviation divided by the mean, divide the cell containing the standard deviation by the cell containing the mean.
For example, consider a risk-averse investor who wishes to invest in an exchange-traded fund ETFwhich is a basket of securities that tracks a broad market index. Then, he analyzes the ETFs' returns and volatility over the past 15 years and assumes the ETFs could have similar returns to their long-term averages.
For illustrative purposes, the following year historical information is used for the investor's decision:. Financial Ratios. Risk Management.
Mutual Fund Essentials. Portfolio Management. Your Money. Personal Finance. Your Practice. Popular Courses. Financial Analysis How to Value a Company. Key Takeaways The coefficient of variation CV is a statistical measure of the relative dispersion of data points in a data series around the mean.
The lower the ratio of the standard deviation to mean return, the better risk-return trade-off. Compare Accounts. The offers that appear in this table are from partnerships from which Investopedia receives compensation. Related Terms Standard Deviation The standard deviation is a statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.
It is calculated as the square root of variance by determining the variation between each data point relative to the mean. How to Use the Sharpe Ratio to Analyze Portfolio Risk and Return The Sharpe ratio is used to help investors understand the return of an investment compared to its risk.
Volatility Volatility measures how much the price of a security, derivative, or index fluctuates.Seafloor morphology and sediment transfer in the mixed carbonate-siliciclastic environment of the Lesser Antilles forearc along Barbuda to St. Marine Geology, 29p. Fluid seepage associated with slope destabilization along the Zambezi margin Mozambique. Marine Geology, 13p. Geological Society, London, Special Publications, The impact of internal waves on upper continental slopes: insights from the Mozambican margin SW Indian Ocean.
Earth Surface Processes And Landforms45 6 Integrated geophysical, sedimentological and geotechnical investigation of submarine landslides in the Gulf of Lions Western Mediterranean. Geomorphology, 19p.What does it mean when you dream someone is jealous of you
Fluid escape features as relevant players in the enhancement of seafloor stability? Terra Nova31 6 First Edition. Dennielou BernardJegou I. Marine Geology, Javier, Clare Michael A. Contourite distribution and bottom currents in the NW Mediterranean Sea: Coupling seafloor geomorphology and hydrodynamic modelling. Geomorphology, Eds ISBN: Altered volcanic deposits as basal failure surfaces of submarine landslides.
Geology46 7 Morphological control of slope instability in contourites: a geotechnical approach. Landslides15 6 Marine And Petroleum Geology87, Dalla, Gamberi F. Large-scale response of the Eastern Mediterranean thermohaline circulation to African monsoon intensification during sapropel S1 formation. Quaternary Science Reviews, Origin and chronology of the Augias deposit in the Ionian Sea Central Mediterranean Seabased on new regional sedimentological data.
Turbidite chronostratigraphy off Algiers, central Algerian margin: A key for reconstructing Holocene paleo-earthquake cycles. Destabilization of tropical isolated carbonate platforms. The pianosa contourite depositional system northern Tyrrhenian sea : drift morphology and plio-quaternary stratigraphic evolution.Pockmarks are crater-like depression on the seafloor associated with hydrocarbon ascent through muddy sediments in continental shelves around the world.
In this study, we examine the diversity and distribution of benthic microbial communities at shallow-water pockmarks adjacent to the Middle Adriatic Ridge.
We integrate microbial diversity data with characterization of local hydrocarbons concentrations and sediment geochemistry. Our results suggest these pockmarks are enriched in sedimentary hydrocarbons, and host a microbial community dominated by Bacteriaeven in deeper sediment layers. Pockmark sediments showed higher prokaryotic abundance and biomass than surrounding sediments, potentially due to the increased availability of organic matter and higher concentrations of hydrocarbons linked to pockmark activity.
Prokaryotic diversity analyses showed that the microbial communities of these shallow-water pockmarks are unique, and comprised phylotypes associated with the cycling of sulfur and nitrate compounds, as well as numerous know hydrocarbon degraders.
Altogether, this study suggests that shallow-water pockmark habitats enhance the diversity of the benthic prokaryotic biosphere by providing specialized environmental niches. Pockmarks are a type of cold seeps characterized by seafloor depression induced by fluids or hydrocarbon ascent through muddy sediments Judd and Hovland, Natural gas and fluid migration to the surface create a mass defect under the seafloor generating a gravity collapse and the typical crater-like depressions Judd and Hovland, Pockmarks are widespread features along passive and active continental margins and they are often present in clusters varying from few to hundreds per km 2 Pilcher and Argent, ; Forwick et al.
Due to their abundance and distribution, which includes shallow-water locations, the contribution of pockmarks to global methane and hydrocarbon release could be enormous Fleischer et al.
Methane, despite its low abundance in the atmosphere, is a powerful greenhouse gas and has been recognized as one of the forcing factors for rapid climate change Manne and Richels, ; Watson, Its release from the ocean floor can influence global warming, modify oceanic redox conditions and affect the global carbon cycle Hinrichs and Boetius, ; Judd and Hovland, ; Reeburgh, While the microbial communities associated with the degradation of methane have been widely investigated in seep environments Knittel and Boetius, ; Ruff et al.
Previous studies carried out in the North Sea, Atlantic Ocean, and Mediterranean Sea revealed that pockmarks may represent hot-spot of biodiversity, both for the microbial community and metazoans Olu-Le Roy et al. In recent years, an increasing variety of hydrocarbon degrading prokaryotes has been described, mainly from the Alpha - Delta - and Gammaproteobacteria class and Firmicutes phylum Head et al. Members of these groups are able to degrade complex mixtures of hydrocarbons Meckenstock and Mouttaki, ; Rosenberg, ; Abbasian et al.
The Mediterranean Sea is a semi-closed marine system with peculiar characteristics: high deep-water temperature and homeothermy ca. Pockmarks are common features on many continental margins of the Mediterranean Basin Hovland and Curzi, ; Dimitrov and Woodside, ; Trincardi et al. Despite this, the effects of the shallow-water pockmarks of the Mediterranean basin and associated seeping on the surface sediment microbial community, remain largely unknown. Here, we have examined the diversity and distribution of benthic microbial communities associated with shallow-water pockmarks adjacent to the Middle Adriatic Ridge.
The microbial diversity data were integrated with measurements of sedimentary hydrocarbons and organic matter content. Specifically, we investigated whether: i shallow-water pockmarks of the Middle Adriatic shelf are associated with a sedimentary hydrocarbon anomaly; ii the structure of the prokaryotic community differs among pockmarks and surrounding sediments and such change is significantly correlated with sediment chemistry; and iii the different microbial assemblages of shallow-water pockmarks are dominated by few or several phylotypes, implying a specialized or a generalized community, respectively.
Sediment samples were collected ca. The surveyed area covers ca. The sampling strategy included five different stations in close proximity of the Middle Adriatic Ridge Three undisturbed sediment cores were collected at each station and were divided in three distinct horizons shipboard 0—1, 3—5, 10—15 cm.
Surface sediment aliquots were immediately placed in gas tight vials for the determination of volatile aliphatic hydrocarbons C5-C Several pockmarks are visible, together with the depression associated with the MAR. Sampled pockmarks and sediments are marked with a black arrow.
CV Template (Curriculum Vitae)
Details of the sampled stations and sedimentary organic matter content. Volatile aliphatic hydrocarbons C5-C10semi-volatile and non-volatile aliphatic hydrocarbons CC40monoaromatic hydrocarbons BTEX and PAHs were analyzed in sediments by conventional procedures based on gas-chromatography with flame ionization detector FIDgas-chromatography and mass spectrometry, and HPLC with fluorimetric detection Piva et al.Cisco c3750 enable ssh
Limitations in our sampling gear prevented us from analyzing volatile aliphatic hydrocarbons between C1 and C4. Compounds were identified by standardization with pure standards of analytical GC grade n -pentane, n -hexane, n -heptane, and n -decane.A CV or Curriculum Vitae is a summary of a person's education, employment, publications, and other professional activities, awards, and honors.Unit 3 test review geometry
In the United States, a CV is used by people applying for a position in academia, research, or scientific field as well as grants and fellowships. The Curriculum Vitae Template below was designed with this purpose in mind. Download the template and read through the suggestions below to learn how to write your CV. If you are a graduate student, you should begin assembling your CV right away so that you have it ready to give to future employers.
Use your CV to keep track of your accomplishments and publications so that it is always up-to-date. In many other countries, a curriculum vitae is essentially the same thing as a resume. If that applies in your case, then check out our resume template. License : Limited Use not for distribution or resale. Our CV Template includes many of the common categories in a curriculum vitae such as education, research experience, teaching experience, publications, awards, etc.
Think of these sections as modules that you can move around or remove as needed. The curriculum vitae template includes some instructions pertinent to various sections as well as sample publications and references.
This CV template was set up using Styles in Word. For example, to modify all the section headings, you can just modify the Heading 1 style. To change the font in the entire document, you can edit the Normal style.
This version of the Curriculum Vitae is identical to the outline version, except that the document is structured using tables, with headings on the left. Customizing : It will be very important for you to customize the template for your specific field, experience, and skills.
The order of the various sections will depend upon what type of job you are applying for such as teaching vs. See the reference below for examples of how to customize your CV. Maintaining a Master Copy : You will probably end up with many different versions of your CV over time as you apply for different positions and grants.
I prefer to maintain a single master CV template that contains the most up-to-date information. If you are in a hurry to send off an application, it is very easy to accidentally include a section in your CV that you didn't want to.Login to manage all website contents. IT EN.
Angeletti, M. Taviani, S. Canese, F. FogliniF. Mastrototaro, A. Argnani, F. Trincardi, T. Bakran-Petricioli, A. Ceregato, G. Chimienti, V. Poliseno, New deep-water cnidarian sites in the southern Adriatic Sea.
CV template: Standard professional format
Mediterranean marine science, accepted. Taviani, L. Angeletti, A. Ceregato, F. FogliniC. Froglia, F. Trincardi, The manufacturer packaged Remarkably, wehave found that, at least in some circumstances, a quanti-tative correlation to biophysical data can be obtained from a statistical analysis of selected phage populations Another major focus has been to obtain quanti-tative data on b-sheet stability determinants.
We have suc-cessfully adapted a phage-display method for quantitating a nities of protein variants shotgun The VHdomains in camelid heavy chainantibodies are most similar to Thisstatisticalmultivariate method is supervised. It searches for thevariables containing the greatest interclass variance andthe smallest intraclass variance, and constructs Statisticalanalysis, including variable reduction and linear discrimi-nant analysis was performed on sensitive and multiresistantcells spectra in order to establish a diagnostic tool for multiresistant Universallyquantified formulae are evaluated similarly.
Theevaluation of a boolean connective is a straightfor-ward recursion. In the case of a conjunction, e. NEGRA export for- mat. The query format is a compact binary representation of the relationsof the trees. Fips relies on generative grammar concepts, andis basically made up of a generic parsing modulewhich can be It contains detailed mor-phosyntactic and semantic information, namely,selectional properties, subcategorization informa-tion, and syntactico-semantic features that arelikely The tool is part of a larger extraction system that relies, in turn,on a multilingual parser Implementation and External LibrariesThe tool is a desktop application written in Java.
Corpora: Pragmatics and Discourse, pages— Rodopi, Amsterdam, Netherlands.
Feature-rich part-of-speech Chuck andYoung, Computer-assisted tools that support manualassessment based on checklists require naturallanguage understanding. Morgan Kaufmann. Gale and Kenneth W. A program for alinging To demonstrate this, let us con- sider a concrete example. An English and a French versions of a software manual contain and paragraphs, USA shemtov parc. Machine Translation, 17 1 — BLAST can handle two types of annotations: er-ror annotations and support annotations.
Error an-notations are based on a hierarchical Laviano, R. Analisi mineralogica quantitativa di argille me-diante diffrattometria di raggi X. Collana di studi ambientali, Trincardi, F. Conferenza Le pianure: Conoscenza esalvaguardia; il
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