What Makes a Candle Flame?

• DOI: 10.1002/chemv.201000145
• Author: ChemViews
• Published Date: 06 December 2011
• Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

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Combustion Processes

1. Melting of the fuel
2. Transport of the fuel by the capillary action of the wick
3. Conversion of the liquid fuel into gas
4. Thermal decomposition (pyrolysis) of the fuel
5. Oxidation of the pyrolysis products

Solid carbon particles, soot, form at about 1,000 °C. These are excellent blackbody radiators of colors in the yellow to red spectrum. The typical yellow color of a candle flame or wood fire is therefore produced primarily by the hot soot. The mixing of the fuel and the O₂ is the slowest part of the combustion process and, therefore, the rate determining step.

See more on: http://www.chemistryviews.org/details/ezine/1393243/What_Makes_a_Candle_Flame.html

Tips for Writing Better Science Papers: The Cover Letter

Have you ever struggled to write up your results into publishable paper only to get it rejected? Richard Threlfall, Managing Editor, Asian Journal of Organic Chemistry, gives some insider tips on how to improve each section of your article and increase your chances of getting published.

The Cover Letter

Often overlooked in submissions, your cover letter is your chance to talk directly to the editor and to highlight all the most important results of your research. It can either make a great first impression or leave the editor uninspired, so it is a fantastic opportunity to make the editor sit up and take notice of your paper!

It is a very bad idea to submit a cover letter that just says:

Dear Editor,
We are submitting our manuscript for consideration in your journal. It is not under consideration for publication anywhere else.
Sincerely
A. Author

An even worse idea is not to submit a cover letter at all (which does happen)!

Much like an introduction, a good cover letter explains to the editor the critical question your research addresses, how you have answered this question, and why it is of significance to the wider community.

Consider the basic examples below:

Dear Editor,
Compound X has interesting biological and pharmaceutical activity. We made some improvements over a previous synthesis and believe it has wider applications in organic chemistry.
Sincerely
A. Author

A letter like this poses more questions than it answers for the editor. A better start might be:

Compound X is a potent anticancer agent. However, up until now, it could only be isolated in small amounts from Plantius planticus. Our total synthesis gives compound X in 99 % yield by …

or

We have synthesized catalyst A, which is 75 % more efficient than catalysts B and C for the industrially important hydrolysis of Y. This improvement in efficiency is caused by …

Technical details (where appropriate) will add to the editor's understanding of your paper, but be careful not to put in an overwhelming set of numbers or to exaggerate.

Lastly, suggest referees whether the journal requires you to or not. This shows you have a good knowledge of your field.

The best cover letters are concise and give a clear explanation of the advances and discoveries made in the course of the research. Remember, journals receive many papers per day and editors see hundreds of manuscripts per year, so take every opportunity you can to get your work noticed!

Source: http://www.chemistryviews.org/details/education/2687931/Tips_for_Writing_Better_Science_Papers_The_Cover_Letter.html

PHP Technical Days Iasi

Esti pasionat de o tema? Prezint-o! La PHP Technical Days Iasi :)

Pentru ca de data aceasta am vrea sa te auzim pe tine prezentand o tema care te pasioneaza! La evenimentul PHP Technical Days Iasi de aceasta data te poti inscrie atat ca participant cat si ca prezentator.
Mai multe detalii poti afla accesand:
http://blog.people-centric.ro/news/php-technical-days-iasi%E2%80%93esti-pasionat-de-o-tema-prezint-o/

BESTEngineer

SE CAUTA INGINERI!SPUNE-LE PRIETENILOR TAI DESPRE OPORTUNITATILE DE CARIERA CARE II
ASTEAPTA LA BESTEngineer!

Tech Data, Siemens, ABB, Stein & Partner, Noerr Consulting, Procer, AKKA Romserv, eJOBS, Faurecia Automotive Seating, Leoni Wiring Systems, VDI, Digital Optics Corporation, Viega, Barnett McCall, Emirom Grup, IBM Romania, SolidWorks, Cenit, IAC Group, etc. vor fi prezenti la
Expozitia BESTEngineer in perioada 22-23 iunie 2012 la Crowne Plaza Hotel cu joburi atat pentru inginerii specializati cat si pentru inginerii aflati la inceputul carierei.

Pentru a discuta in detaliu cu unul din recrutorii acestor companii, dar si pentru a aplica la unul din joburile acestora viziteaza BESTEngineer – Conventie de Training si Cariera pentru Ingineri, 22-23
iunie 2012, Crowne Plaza Hotel.

Conventia BESTEngineer este dedicata sectorului de resurse umane care activeaza preponderent in domeniul ingineriei si are ca scop sprijinirea companiilor in gasirea personalului tehnic specializat. In
completare BESTEngineer ofera o serie de posibilitati de formare, invatamant postuniversitar si oportunitati de cariera pentru ingineri.

Daca doresti sa obti o imagine de ansamblu asupra pietei fortei de munca pentru ingineri din Romania si din strainatate, trucuri despre redactarea cv-ului si comportamentul in cadrul unui interviu dar si
ultimele cerinte aparute atunci cand vorbim de obtinerea unui post de inginer, trebuie sa participi la Conferinta BESTEngineer care va avea loc simultan cu Expozitia BESTEngineer. In cadrul Conferintei
BESTEngineer vor prezenta reprezentanti ai companiilor Barnett McCall,Tech Data, ABB, Siemens, VDI, Universitatea Politehnica din Bucuresti, etc.

Program: Vineri 22 iunie: 10:00 – 18:00
Sambata 23 iunie: 10:00 – 17:00
Locatie: Crowne Plaza Hotel Bucuresti - Poligrafiei nr. 1, sector 1,
Bucuresti - Romania
Accesul in cadrul expozitiei este gratuit pe baza completarii unui formular la fata locului.

What Recruiters Look At During The 6 Seconds They Spend On Your Resume

Read more: http://www.businessinsider.com/heres-what-recruiters-look-at-during-the-6-seconds-they-spend-on-your-resume-2012-4?goback=%2Egde_144118_member_109266179#ixzz1t1jQ3NoD

Internship oferit de British Council Iasi

British Council Iasi ofera celor activi si interesati sa se implice in activitati de voluntariat oportunitatea unui internship de sase luni.
Cei selectati vor avea posibilitatea de a vedea cum este sa lucreze intr-un centru cultural: interactiune cu clientii, asistenta la biblioteca, in administrarea de examene internationale si la diferite evenimente.
Aplicatiile pot fi depuse pana pe 10 mai la adresa bc.iasi@britishcouncil.ro, specificand in subiect: Program Voluntariat Iasi.
Mai multe detalii despre aplicatie puteti afla consultand:
http://www.britishcouncil.org/ro/romania-about-employment-opportunities-internship.html

FameLab 2012

Participa la Famelab - competitia internationala de comunicare a stiintei!

British Council, in asociere cu The Times Cheltenham Science Fetival din Marea Britanie, organizeaza FameLab International, o competitie internationala de comunicare a stiintei care se desfasoara in peste 20
de tari din Europa, Orientul Mijlociu, Asia si Africa de Sud.

Daca ai intre 18 si 35 de ani si doresti sa-ti demonstrezi si sa-ti dezvolti abilitatile de comunicare a stiintei, inscrie-te la cea de a V-a editie a FameLab din Romania!

Filmeaza o prezentare de maximum 3 minute, in limba romana, pe un subiect la alegere din domeniul stiintelor naturii, matematicii, tehnologiei sau medicinei, si incarca prezentarea ta video pana pe 24
aprilie, pe pagina web a competitiei: www,.britishcouncil.ro/famelab-romania <http://www.britishcouncil.ro/famelab-romania> .

Juriul format din oameni de stiinta si specialisti in comunicare va evalua filmele inscrise in concurs, in functie de trei criterii: continut, claritate si carisma.

Cei care trimit cele mai bune filme vor beneficia de un masterclass gratuit de comunicare a stiintei organizat de British Council, in zilele de 5-6 mai, la Predeal.

Primii zece clasati din faza prezentarilor video vor fi prezenti in finala nationala FameLab, cu o prezentare de 3 minute, sustinuta in limba romana, in fata publicului, in cadrul unui spectacol televizat care va avea loc in Bucuresti.

Castigatorul finalei de la Bucuresti va beneficia de o excursie la Festivalul de Stiinta din Cheltenham (Marea Britanie), in perioada 12-16 iunie, pentru a reprezenta Romania in finala FameLab International,
costurile fiind acoperite de British Council.

Editia din 2012 a FameLab Romania este organizata cu sprijinul partenerilor Intel, BBC Focus Science, Asociatia "Hermann Oberth" si Ziarul Stiintelor.

Mai multe informatii depre FameLab 2012 pe pagina web a competitiei: www,.britishcouncil.ro/famelab-romania <http://www.britishcouncil.ro/famelab-romania>  sau prin e-mail, la adresa https://webmail.tuiasi.ro/webmail/src/compose.php?send_to=famelab%40britishcouncil.ro