Morphogenesis of the Terrarium

2012 ◽  
Vol 74 (7) ◽  
pp. 521-524
Author(s):  
Andrew Brinker

Terrariums have decorated the shelves and counters of biology offices and classrooms for centuries. Living organisms inspire students and teachers alike. These wonderful ecosystems allow for both experimentation and observation of living systems. Here, I outline a new approach to building classroom terrariums. Historically, terrariums have been made using rocks, gravel, soil, wood, leaves, and organic props. This process often creates an immovable terrarium that weighs several hundred pounds. Although this approach will continue to produce beautiful terrariums, new technology has given us the opportunity to create more intricate terrariums that are a fraction of the weight and, therefore, mobile. The step-by-step protocol given here will allow biology professionals with little experience building terrariums an opportunity to explore this rewarding practice.

1997 ◽  
Vol 161 ◽  
pp. 437-442
Author(s):  
Salvatore Di Bernardo ◽  
Romana Fato ◽  
Giorgio Lenaz

AbstractOne of the peculiar aspects of living systems is the production and conservation of energy. This aspect is provided by specialized organelles, such as the mitochondria and chloroplasts, in developed living organisms. In primordial systems lacking specialized enzymatic complexes the energy supply was probably bound to the generation and maintenance of an asymmetric distribution of charged molecules in compartmentalized systems. On the basis of experimental evidence, we suggest that lipophilic quinones were involved in the generation of this asymmetrical distribution of charges through vectorial redox reactions across lipid membranes.


2014 ◽  
Vol 2014 (1) ◽  
pp. 000718-000723
Author(s):  
Jared Pettit ◽  
Alman Law ◽  
Alex Brewer ◽  
John Moore

As the 3DIC market matures, more is understood about the technical and cost challenges [1]. At the 2013 Semicon-West gathering, a panel of global experts identified these technical challenges to represent some of the most significant barriers to the industry's efforts to maintain progress with Moore's Law [2]. Searching and achieving high value manufacturing of 3DIC devices requires wrestling with several technologies and processes, all which may assert a different value for the manufacturer [3]. Current technologies for thin wafer support use a wide range of adhesives applied to the device wafer, bonded to a carrier, backside processed, and de-bonded by an array of methods. Daetec has been investigating temporary bonding for nearly 15yrs, is producing a range of products for semiconductor (e.g. WaferBondTM (Brewer-Science, Inc.)) [4], and for the display market using a low-cost tunable adhesion-force material that is peeled by simple means [5]. Daetec has developed a new technology, DaeBond 3DTM, allowing de-bonding to occur in a batch process while thinned wafers are affixed to film frames. This new approach provides a shift in conventional practice. Our paper presents several temporary bonding options with DaeBond 3DTM in an effort to define value-added approaches for thin wafer handling.


Coatings ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 492 ◽  
Author(s):  
Andreas Breitwieser ◽  
Philipp Siedlaczek ◽  
Helga Lichtenegger ◽  
Uwe B. Sleytr ◽  
Dietmar Pum

Carbon nanotubes (CNTs) have already been considered for medical applications due to their small diameter and ability to penetrate cells and tissues. However, since CNTs are chemically inert and non-dispersible in water, they have to be chemically functionalized or coated with biomolecules to carry payloads or interact with the environment. Proteins, although often only randomly bound to the CNT surface, are preferred because they provide a better biocompatibility and present functional groups for binding additional molecules. A new approach to functionalize CNTs with a closed and precisely ordered protein layer is offered by bacterial surface layer (S-layer) proteins, which have already attracted much attention in the functionalization of surfaces. We could demonstrate that bacterial S-layer proteins (SbpA of Lysinibacillus sphaericus CCM 2177 and the recombinant fusion protein rSbpA31-1068GG comprising the S-layer protein and two copies of the IgG binding region of Protein G) can be used to disperse and functionalize oxidized multi walled CNTs. Following a simple protocol, a complete surface coverage with a long-range crystalline S-layer lattice can be obtained. When rSbpA31-1068GG was used for coating, the introduced functionality could be confirmed by binding gold labeled antibodies via the IgG binding domain of the fusion protein. Since a great variety of functional S-layer fusion proteins has already been described, our new technology has the potential for a broad spectrum of functionalized CNTs.


Author(s):  
David M. Gann ◽  
Andrew Davies ◽  
Mark Dodgson

This chapter examines how organizations responsible for three UK megaprojects—Heathrow Terminal 5, London 2012 Olympics, and Crossrail—have made significant efforts to create a more innovative and flexible delivery model. This new approach recognizes that over the life of a megaproject, new and unexpected options for delivering it will emerge, including opportunities to take advantage of innovative new practices, processes, and efficiencies made possible by new technology. Drawing upon strategy literature and empirical research conducted between 2005 and 2015, five dynamic capabilities or strategic processes are identified associated with a new innovative and flexible project delivery model—search, adaptive problem solving, test and trial, strategic innovation, and balancing—to help managers address the risks and opportunities involved in megaproject management.


Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 2118
Author(s):  
Óscar de Francisco Ortiz ◽  
Irene Ortiz ◽  
Antonio Bueno

In any precision manufacturing process, positioning systems play a very important role in achieving a quality product. As a new approach to current systems, camera-LCD positioning systems are a new technology that can provide substantial improvements enabling better accuracy and repeatability. However, in order to provide stability to the system a global positioning system is required. This paper presents an improvement of a positioning system based on the treatment of images on an LCD in which a new algorithm with absolute reference has been implemented. The method is based on basic geometry and linear algebra applied to computer vision. The algorithm determines the spiral center using an image taken at any point. Consequently, the system constantly knows its position and does not lose its reference. Several modifications of the algorithm are proposed and compared. The simulation and test of the algorithm provide an important improvement in the reliability and stability of the positioning system providing errors of microns for the calculation of the global position used by the algorithm.


2012 ◽  
Vol 1 (4) ◽  
pp. 50-68 ◽  
Author(s):  
David E. Morton

Building Information Modeling (BIM) has made a considerable impact on the construction industry and the way in which building design information can be accessed and interrogated. This impact is now being seen in the Schools of Architecture in the UK. Academia is beginning to see the feasibility and benefits of converting to such a new technology; will this inevitably start to filter into teaching BIM to architecture students? The concern by many in academia is that design will become secondary to pedagogy of building design. This viewpoint is based on the impact of CAD, where the art of hand drawing was feared lost forever. The use of computers in schools of architecture has become the norm, and the creative moving of a pen across paper has been replaced, to a degree, by the cursor across the CAD screen. As academia moved to respond to this change, the need to teach CAD became increasingly important. Therefore, will the paradigm shift of BIM require the inevitable move to a new approach in the design and construction of buildings? There are many misconceptions of BIM and the dilemma is that those teaching within the schools need to understand how BIM can readily interface with the design process and allow interrogation of the design are far earlier stages of the concept. Will academia ensure that BIM is used to enhance the creative process not hinder it?


2011 ◽  
Vol 79 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Maria Glantz ◽  
Helena Lindmark Månsson ◽  
Marie Paulsson ◽  
Hans Stålhammar

Genomic selection is a new technology in which selection decisions are based on direct genomic values (DGVs) or genomic enhanced breeding values (GEBVs). The objective of this study was to evaluate the relations between DGVs and several milk traits important for both the nutritional value and processability of milk. This is a new approach and can be used to increase the knowledge on how genomic selection can be used in practice. Morning milk samples from Swedish Holstein cows were analyzed for milk composition and technological properties. DGVs were received for each cow for milk, protein and fat yield, milk index, udder health, Nordic total merit and a quota was calculated between fat and milk yield as well as protein and milk yield. The results show that linear correlations exist (P<0·10) between the studied DGVs and contents and yields of parameters in the protein (P=0·002–0·097), fat (P=0·024–0·055) and mineral profiles (P=0·001–0·099) as well as for cheese characteristics (P=0·004–0·065), thus making it possible to obtain detailed information on milk traits that are not registered in the milk recording scheme. Hence, genomic selection will be an efficient tool for breeding and dairy industry to select cows early in life for targeted milk production.


Author(s):  
Sanaa K. Bardaweel ◽  
Muhammed Alzweiri ◽  
Aman A. Ishaqat

Homochirality is fundamental for life. L-Amino acids are exclusively used as substrates for the polymerization and formation of peptides and proteins in living systems. However, D- amino acids were recently detected in various living organisms, including mammals. Of these D-amino acids, D-serine has been most extensively studied. D-Serine was found to play an important role as a neurotransmitter in the human central nervous system (CNS) by binding to the N-methyl- D-aspartate receptor (NMDAr). D-Serine binds with high affinity to a co-agonist site at the NMDAr and, along with glutamate, mediates several vital physiological and pathological processes, including NMDAr transmission, synaptic plasticity and neurotoxicity. Therefore, a key role for D-serine as a determinant of NMDAr mediated neurotransmission in mammalian CNS has been suggested. In this context, we review the known functions of D-serine in human physiology, such as CNS development, and pathology, such as neuro-psychiatric and neurodegenerative diseases related to NMDAr dysfunction.


2020 ◽  
Vol 4 (2) ◽  
pp. 29-33 ◽  
Author(s):  
Andrzej Kochański ◽  
Hanna Sadłowska

In recent years, hydroforming has clearly expanded its range of industrial applications due to the growing interest in products which combine high strength with low weight. A current limitation of this technology was its economically justified production volume since the costs of producing tools eliminates the possibility of using hydroforming technology in prototype and single part production. The paper presents a freshly patented solution that allows for single part hydroforming. The new technology combines traditional hydroforming machines with a new approach to tool production. The new rapid die is made quickly and cheaply. The use of materials known from the production of foundry moulds causes the die to deform during hydroforming, but it is a controlled deformation. Thanks to the use of numerical modelling, the deformation of the mould cavity is predicted and taken into account at the design stage. The article presents important issues that need to be considered in the design of this innovative process.


2018 ◽  
Vol 37 (3-4) ◽  
pp. 55-70
Author(s):  
Andreas Weber

In this essay I will explore the possibility of an objective ecological ethics. To do this, I follow the embodied ethos of relationships: meaningful expression and mutual sharing occuring in living organisms and systems. Living beings on various levels of identity (cellular selves, individuals, and ecosystems) strive toward increased aliveness. They are self-healing, and generate meaningful relationships, all without the need or interference of human ethical thinking. Ecosystems tend toward complexity and organisms tend to avoid their own destruction. Both tendencies create “natural values” – values not extractable into abstraction, yet nonetheless fundamentally embodied in the actions of living beings and living systems. An ethics based on these principles (or insights) is inclusive in that it can be conceived as a sort of “poetic objectivity”. Here the ethically good is the increase in “aliveness”, which can be shared by other beings, and which is only possible as “being through the other”. Aliveness is ineffable and cannot be extracted analytically. Hence it is objective only in a poetic sense that can be shared through participation. An ethics of poetic objectivity leaves room to negotiate individual relationships and narratives while providing goodness as an encompassing context tuning into the degree of sharing and mutual inspiration to be more alive. The natural values generated by sharing transformative relationships produce the whole of nature as an “ethical commons”. Its principles can be instructive in reorganising human exchange on ethical and economical levels.


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