Winter vacation of a Mexican young scientist

Reading Alebrijes by Cecilia Reyes 

Winter vacation on the public school system means three full weeks doing something else; personal stuff maybe,  I am not sure about working but resting is a must.

As a postdoctoral fellowship, I am not able to get into the university facilities to do some office or experimental work in the laboratory. That means that all the experimental work is on a pause. Well, this situation brings me to the next question.

Is it healthy to continue working during vacations ?  I mean, doing some reading or drafting a manuscript for a scientific publication.

For Ph.D. holders who are working right now on Mexican universities and who already got the National Research system grant (SNI-CONACYT)  maybe it is a duty to work during vacations because of the process to obtain a product (student graduation, scientific publication, patents as innovation ) take a lot of time. For those who are not familiar with SNI systems, every three years we are evaluated and if we do not fill the minimum requirement to maintain the grant then the membership and grant are retired.

I remember that when I was a Ph.D. student from 2013-2017 at UNAM, we used to work during vacations because when there is a big resting time we usually got out of focus from the research project. In my experience, I always recommend my colleagues to not take vacations during the thesis writing process because there is a risk of losing focus or inspiration. But now is slightly different.

Taking vacations, rest and go with your family but maybe it is ok but I thin not full time. For example in my experience, I do nothing related to work during the two weeks but right now I begin to feel not productive. I react to this feeling by doing some activities called "Hobbies".

 I used to do three constant activities: Reading,  programming learning and right now writing. 

Sometimes these activities are not related to science, for example, my reading motivation of this year is to be able to answer the following questions: What is it happening outside of my country in a political way?; How the human being got here to the actual world?. An, of course, be present about the environmental situation. 

This is the last vacation week: What are you going to do?  Travel, Read, Vist your friends,  Go with your Family, Work or maybe learn something new. 

Alebrijes - Lectura p.127-129

Lectura corta, páginas 127-129. Excelente libro para disfrutar en compañía de tu ser querido, cuenta la historia del artesano cartonero Pedro Linares López inventor de los Alebrijes en México del siglo XX.

Consíguelo aquí: https://amzn.to/34YcKNN

AFM Training - Tip functions

Equipmen: AFM Bruker Dimension Edge 

Responsible research: Dr. Francisco Flores 

Day: 2 

Today I observe how a point for AFM is changed: We need to choose it depending on the material and the measurement we want to perform. For example, the sample of today is gold nanoparticles over a glass substrate then we have tried the TAP300Al-G which is a probe from the company BudgetSensors. This probe is designed for AFM in Tapping mode and is coated with reflective aluminum. 

From the company BudgetSensor, we can discover the function of the tip models: 

• No coating: is designed for topography purpose 
• Backside aluminum coating: is designed to enhance the laser reflectivity and ensure stable measurement form highly reflective surfaces. 
• Backside Gold coating (inertness):  is designed for stable reflection measurement in liquids. 
• Overall coated Gold: is designed and used for Biological Samples and aggressive chemical ambients. Often use for TIP functionalization.  
• Cr and Pt coated probe: is designed for electrical measurement like electrostatic force microscopy. 
• Diamond-like carbon coating: enhance the durability of the tip and is designed to perform many consecutive scans 

Here are some photographies from the training day: 

Figure 1: Change of Tip for AFM Measurement in Bruker Dimension Edge 

Figure 2: Responsible researcher placing the tip in the AFM equipment 

Figure 3:  Getting the sample inside (gold nanoparticles deposited on glass substrate)