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An Observation in Writing. Scientists | Writer | Pathfinder I am a freelance writer, editor and graphic creator for hire!
Blog Added: March 17, 2018 09:24:40 AM
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Blog Platform: WordPress
Blog Country: South-Africa   South-Africa
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Dear Narcissist: I’ll take My Happiness and Go

  In a world of black and white, where anything anyone does is wrong and only you are right. From your subjective deluded perspective you have but one objective. Spite, vengeance and scorn swirl within your heart’s storm. Always having the last word and endlessly casting blame. All an attempt to gain your rightful empty … Continue reading Dear Narcissist: I’ll take My Happiness...

I'll take my happiness and go Drabble Narcissism Narcissist Personality Disorder Tanzelle Oberholster andDNAsci andDNAsci.wordpress

 

In a world of black and white, where anything anyone does is wrong and only you are right.

From your subjective deluded perspective you have but one objective.

Spite, vengeance and scorn swirl within your heart’s storm.

Always having the last word and endlessly casting blame.

All an attempt to gain your rightful empty fame.

An endless spiral of self-destruction until tatters of every soul remains.

 

I endured.

I reject your words of false accusation and unfounded lies.

I cast you from my life and reclaim happiness as my prize.

For you despise yourself more, than anyone else.

 


Drabble: 98 words



Begryp: ‘n Afrikaanse Gedig / Realise: an Afrikaans Poem

  Begryp In die feëwoude Raak dit al hoe benouder Want voëlneste word verwyder En hoeveelheid inwoners al hoe kleiner Is daar geen verligting? Aan die oprigting? Daar is geen meer bome Vir die beeldskone Woudgeeste om onder te dans Deur die dag en saans Niemand gee om Want die mensdom is stom Hul kinders … Continue reading Begryp: ‘n Afrikaanse Gedig / Realise: an...

Star Butterflies night moon water sea ocean Tanzelle Oberholster Begryp Afrikaans Poem anddnasci.wrodpress.com

 

Begryp

In die feëwoude

Raak dit al hoe benouder

Want voëlneste word verwyder

En hoeveelheid inwoners al hoe kleiner

Is daar geen verligting?

Aan die oprigting?

Daar is geen meer bome

Vir die beeldskone

Woudgeeste om onder te dans

Deur die dag en saans

Niemand gee om

Want die mensdom is stom

Hul kinders gaan eendag kommer

Oor hoekom hul sit sonder

Enige iets om te bewonder

Alles wat mooi was, is nou weg

En nou is slegs, ‘n dorre land hul geboortereg

Omdat ons nie kan begryp

Hoe ons besig is om onself aan die aarde te vergryp…

mushrooms woodland fairytale autumn Tanzelle Oberholster Begryp Afrikaans Poem anddnasci.wrodpress.com


Drabble: 98 words

© Tanzelle Oberholster

Written during my highschool years / Geskryf gedurende my hoërskool jare: 2003-2007

 

PS: The automatic ‘translated’ version of this poem is majorly messed up – LOL!

Basically it speaks to the idea that our unsustainable ways of living (materialism, consumerism and the ever expanding cities) is destroying the forest in which the sprites and fairies dance. Consequently, our children will have nothing to admire, because all the beauty of the world has been lost. Their only birthright would be a barren wasteland, if we do not realise that we have to cease our needless selfish ways.

 

Here is a Picture Version / Hier is ‘n Prentjie Weergawe

Galaxy Fairy Tanzelle Oberholster Begryp Afrikaans Poem anddnasci.wordpress Online



Writing Journal of a Scientist: Run The Ink Dry (Drabble)

No piece of writing is worthy of destruction – yes, it may be cringe worthy, but half-formed ideas hide between the bad grammar and spelling mistakes. These precious little insights will be nourished when the water of the muses flow. Crumbs of inspiration quickly transform into beautifully composed pieces. Never throw away any article of … Continue reading Writing Journal of a Scientist: Run The Ink...

Drabble, Pen, Fountain Pen, Calligraphy, Write, Journal, Dairy, Paper, Ink

No piece of writing is worthy of destruction – yes, it may be cringe worthy, but half-formed ideas hide between the bad grammar and spelling mistakes. These precious little insights will be nourished when the water of the muses flow. Crumbs of inspiration quickly transform into beautifully composed pieces. Never throw away any article of writing you felt compelled to manifest. Place the offensive piece of ink on paper in a dark drawer if you must. Let it grow there, like a fungus. Soon there will come a time when these little writer’s blights will provide the antidote to writer’s block.

 


(words: 100)

This post was featured on TheDrabble!



We are Borg: How Ticks Assimilate Genetic Adaptation

To most people parasites are gruesome creatures, likely the feature of nightmares. Yet, they are fascinating organisms from an evolutionary perspective (read more about Tick Origins and the Fossil Record). They are prime examples of the evolutionary arms-race, where parasite and host try to outwit one another through biological adaptation. Unlike plant ectoparasites, animal parasites … Continue reading We are Borg: How Ticks Assimilate...

To most people parasites are gruesome creatures, likely the feature of nightmares. Yet, they are fascinating organisms from an evolutionary perspective (read more about Tick Origins and the Fossil Record). They are prime examples of the evolutionary arms-race, where parasite and host try to outwit one another through biological adaptation. Unlike plant ectoparasites, animal parasites are blood feeding and have to overcome far more complex defense systems and immune responses from their animal hosts.

During my honours and masters degrees (REF 1), I worked on cattle ticks. Specifically, the blue cattle ticks, Rhipicephalus decoloratus (a native South African) and R. microplus (an invasive species). Out native cattle, such as the Bonsmara and Nguni (read more about Cattle History in South Africa) are tolerant to R. decoloratus (RD), initiating strong immune responses to these. Thus, cattle and tick populations remain at an equilibrium where cattle do not suffer large infestations nor do they contract the associated tick borne diseases too often. R. microplus (RM) is a different tick all together. Since, our native cattle have not had prolonged exposure to this cattle tick, thus they have ineffective immune detection and responses to them. Additionally, RM carries a more virulent version of Redwater (Babesia), a haemolytic disease, which causes the bursting of red blood cells, much like malaria. The internal blood parasite responsible for this belongs to the Babesia genus, B. bigemina for RD and B. bovis for RM. Native cattle easily suffer large infestations of RM and readily contract B. bovis when farms become overrun by RM.

It is common to find both species of blue tick (along with several other and larger tick species) on one animal. RM may have more sophisticated evolutionary tricks with which to bypass cattle immune systems, but RD has an ecological advantage. RD is more at home with our semi-arid climate, whereas RM hails from tropical regions. This is where RM deploys its nefarious plans of evolutionary domination: it is assimilating RD into its genetic pool!

Sheep tick, Ixodus ricinus, 5x magnification, Richard Bartz
Sheep tick, Ixodus ricinus, 5x magnification, Richard Bartz, Wikipedia

It seems that RM has the ability to hybridize with RD (REF 2), but with a silver bullet added to the mix. RM back-crosses far more efficiently with its hybrids than RD. This, along with RM’s general increased fitness (such as having a larger number of offspring, quicker generational turnover, shorter life-cycles and greater pesticide resistance, REF 3) means that the RD population shrink and eventually become replaced by RM and its hybrids. All the while RM is gathering genetic contributions from RD, which seem to result in RM adapting to South Africa’s semi-arid conditions. This means, RM becomes the proverbial boogey-tick as well as the architect of RD’s destruction.

An extinct tick may not be a great loss to society, but it is the means and the cause of which that should be alarming. Ticks are an understudied field in South Africa and more research is required to develop methods of effective control and eventual eradication efforts. South Africa should follow the examples of other countries, such as the USA and AUS who had setup quarantine zones for RM and monitor these closely (REF 4-8). It may not lead to the swift eradication of RM, but it will limit its spread and the devastation that RM brings. This will bring relief to our cattle farmers whilst buying time for researcher to develop a defense plan. I will discuss more about the Introduction and Spread of Rhipicephalus microplus in South Africa with a future article.

Beware of Ticks XI International Jena Symposium on Tick Borne DIseases 2011 Tanzelle Oberholster andDNAsci.wordpress

References

  1. T. Oberholster (2014) Characterisation of the genetic diversity of the southern cattle tick, Rhipicepahlus microplus populations. pp 11. Masters Dissertation, University of Pretoria.
  2. Nyangiwe, N., A. Harrison and I. G. Horak, 2013a Displacement of Rhipicephalus decoloratus by Rhipicephalus microplus (Acari: Ixodidae) in the Eastern Cape Province, South Africa. Exp Appl Acarol: 10.1007/s10493-10013-19705-10497.
  3. Walker, A. R., A. Bouattour, J. L. Camicas, A. Estrada-Peña, I. G. Horak et al., 2003 Ticks of Domestic Animals in Africa: a Guide to Identification of Species. Bioscience Reports, Edinburgh
  4. Lohmeyer, K. H., J. M. Pound, M. A. May, D. M. Kammlah and R. B. Davey, 2011 Distribution of Rhipicephalus (Boophilus) microplus and Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae) Infestations Detected in the United States Along the Texas/Mexico Border. J Med Entomol 48: 770-774.
  5. Pound, J. M., J. E. George, D. M. Kammlah, K. H. Lohmeyer and R. B. Davey, 2010 Evidence for Role of White-Tailed Deer (Artiodactyla: Cervidae) in Epizootiology of Cattle Ticks and Southern Cattle Ticks (Acari: Ixodidae) in Reinfestations Along the Texas/Mexico Border in South Texas: A Review and Update. J Econ Entomol 103: 211-218.
  6. Texas cattle fever ticks are back with a vengeance, 2 February 2017, Steve Byrns, Texas A&M AgriLife Communications
  7. Cattle Fever Ticks: Frequently Asked Questions, January 2017, Texas Animal Health Commission
  8. Fever Tick Situation Report: January 30, 2017, Texas Animal Health Commission

 



Writing Journal of a Scientist: Whose Drabble Is It Anyway?

  A fitting lighthearted post to start the new year. A drabble is a 100-word writing piece, which explains a concept fully. So, for my own amusement I decided to take up the challenge, maybe even dabble in a bit of drabble more regularly on this blog. Drabbling is quite appealing to me, because I think … Continue reading Writing Journal of a Scientist: Whose Drabble Is...

Drabble, anddnasci.wordpress.com, Tanzelle Oberholster, Wikipedia

 

A fitting lighthearted post to start the new year. A drabble is a 100-word writing piece, which explains a concept fully. So, for my own amusement I decided to take up the challenge, maybe even dabble in a bit of drabble more regularly on this blog. Drabbling is quite appealing to me, because I think that we take ourselves far too seriously at times, trying to communicate ideas over tediously long-winded articles. Perhaps we should remain focused on the matter at hand, only relying on the concept itself in order to fully preserve the essence of our message, and cause.

 


(words: 100)

PS: WordPress doesn’t even recognise Drabble as an actual word! My First Blog Post (A Writing Sample from the Journal of a Scientists) was just short (or long) of being a Drabble as well, only 25 words over the limit!

Shout-Out: ‘Whose Drabble Is It Anyway?’ was inspired by The Drabble



1st First Author Article: Key microbial taxa in the rhizosphere of sorghum and sunflower grown in crop rotation

This is my 1st first author article, which is part of my PhD requirement (other than submitting a thesis which is already with the examiners) – One step closer to graduation !     Tanzelle Oberholster, Surendra Vikram, Don Cowan, Angel Valverde. 2018.  Key microbial taxa in the rhizosphere of sorghum and sunflower grown in crop … Continue reading 1st First Author Article: Key microbial taxa in the rhizosphere of sorghum and sunflower grown in...

This is my 1st first author article, which is part of my PhD requirement (other than submitting a thesis which is already with the examiners)

– One step closer to graduation !

 

Graphical abstract, Key microbial taxa in the rhizosphere of sorghum and sunflower grown in crop rotation, Microbial Networks, Soil, Field Conditions, Composition, Diversity

 

Tanzelle Oberholster, Surendra Vikram, Don Cowan, Angel Valverde. 2018.  Key microbial taxa in the rhizosphere of sorghum and sunflower grown in crop rotation. Science of The Total Environment 624: 530-539. [Available Online: 19 Dec 2017].

Key microbial taxa in the rhizosphere of sorghum and sunflower grown in crop rotation
Available Online for Everybody until 7 Feb 2018!

 

Directly from Science of The Total Environment journal:

As co-author of the article Key microbial taxa in the rhizosphere of sorghum and sunflower grown in crop rotation, we are pleased to let you know that the final version – containing full bibliographic details – is now available online.

To help you and the other authors access and share this work, we have created a Share Link – a personalized URL providing 50 days’ free access to the article. Anyone clicking on this link before February 07, 2018 will be taken directly to the final version of your article on ScienceDirect. No sign up, registration or fees are required – they can simply click and read.

Your personalized Share Link:
https://authors.elsevier.com/c/1WF29B8cccqUX

Sharing is Caring!



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