How have collegues overcome inertia to the introduction of alternative practical procedures in high school/seconday school chemistry lessons?

How have collegues overcome inertia to the introduction of alternative practical procedures in high school/seconday school chemistry lessons? These are difficult times for presenting practical...

22 December 2020 2,971 2 View

Sample size fixed effect regression ?

Is it true that only a very large sample is suitable for a panel data fixed effects estimation, or do the ols criteria apply?

26 November 2020 9,127 4 View

Can distributed intelligence substitute for a lack of ethics?

In the trust economy, ethics becomes a scare resource. To what extend will technology be able to step in and fill this gap? Distributed Cognition and Distributed Morality: Agency, Arti...

03 January 2020 9,711 3 View

What is a goed online publishing platform, double refereed of not?

24 December 2019 3,410 1 View

Is the 'slime mold' Physarum polycephalum conscious?

The incredible thing about Physarum polycephalum is that whilst being completely devoid of any nervous system whatsoever (not possessing a single neuron) it exhibits intelligent behaviours. Does...

28 April 2019 2,454 32 View

How to operationalize Meaningfull lectures?

How to operationalize Meaningfull lectures? I want my students to have meaningfull lectures in my class. But what is mening? How to operationalize this concept? Any ideas, experience? Sincerely, Bob

02 April 2019 4,844 1 View

Can I shut off students devices in class?

Dear all, The digital revolution is a great thing, but sometimes it may also be disturbing when students look at their devices during class. Doe anyone know any tehnique or app to shut off all...

10 March 2019 1,493 5 View

Does anyone know games on learning?

Dear all i am looking for playful approaches to show students what learning is. The target audience is last year high school and bachelor freshmen. Games using nonakas seci model, co creation, or...

27 December 2018 7,396 4 View

Type token ratio.

30 July 2017 8,996 1 View

Recently, we have a viral video on somebody committing suicide, now we have a rape broadcasted life?

Internet or Facebook Anthropology? Can Facebook do something about these?

25 January 2017 2,327 3 View

How can I measure the surface interaction or surface interfacial chemistry between polishing abrasives and upper surface of substrate ?

I am working on polishing abrasives. I need to do few characterizations ? which can provide the on time surface chemistry of substrate with polishing abrasive during optical polishing. I would...

18 February 2021 5,319 3 View

How to get rough estimation of the concentrations of Oxygen and moisture inside the glove box?

Dear colleagues, I was just wondering if you can suggest a good method to get a rough estimation to the concentration of O2 and H2O inside the glove box as unfortunately, our glove box doesn't...

17 February 2021 1,012 3 View

Is it reliable to evaluate surface roughness (gwyddion) with SEM pictures?

There are a few works(e.g. DOI 10.1002/sia.4889) reporting that surface roughness can be evaluated by software like gwyddion with SEM pictures.However,the surface roughness is strongly influenced...

09 February 2021 1,905 8 View

Is it possible to find out the wettability and contact angle of water on the rough or corrugated substrate?

First of all, whether it is possible to identify the presence of water and its amount on the Silicon substrate by using only FT-IR spectroscopy. Can ATR-FTIR spectroscopy find out the wettability...

03 February 2021 9,085 4 View

Among all the environmental pollutants globally how much % out of 100% is due to chemists?

Environmental pollutants and hazardous are major issues through which the modern world is suffering. Among all the environmental pollutants and hazardous materials how much contribution is from...

31 December 2020 6,039 3 View

Among All the environmental pollutants how much % out of 100% are due to chemists?

Environmental pollutants and hazardous are major issues through which the modern world. Among all the environmental pollutants and hazardous materials how much contribution is from chemists (out...

31 December 2020 833 7 View

How do you describe the effect of surface roughness in 3 point bend simulation in Abaqus?

Hello everyone, Part of my project is to investigate the effect of surface roughness on stainless steel 17-4 PH in a 3-point bend simulation on Abaqus. I was to use 2D planar mode and manually...

21 December 2020 5,675 3 View

Unlikely condition in the water inundation area after the cyclone?

I have done flood mapping with Sentinel 1 data for 3 districts of India (West Bengal) i.e. North Pargana, South pargana and East Medinipur. North and South Pargana are showing increasing trend in...

11 December 2020 4,714 3 View

Precise film thickness?

Dear all, I am wondering how is the precise way to determine the film thickness from the cross-section of SEM with a certain degree of surface roughness? Shall I determine the film thickness...

19 November 2020 5,752 3 View

Why thrust force, temperature and surface roughness increase with feed rate in Machining?

Reasons why thrust force, temperature and surface roughness increase with feed rate in Machining?

17 November 2020 873 4 View