Art-Science Interactions in the Destruction of an Archive: The after | image Project

Leonardo ◽  
2017 ◽  
Vol 50 (2) ◽  
pp. 121-126
Author(s):  
Amanda Reichelt-Brushett ◽  
Grayson Cooke
Keyword(s):  
Experimental Design ◽  
Chemical Compounds ◽  
Time Lapse ◽  
Hard Copy ◽  
Theoretical Terms ◽  
Oxidizing Agents ◽  
The Past ◽  
Human Desire ◽  
Negative Film

The after | image project is an inquiry into notions of material memory and forgetting and their intersection with archival preservation and dissolution. The project involves the intentional destruction by the authors of a photographic archive using various acids, chemical compounds and oxidizing agents; this destruction is recorded using time-lapse macrophotography. The authors thus challenge the often-intense human desire to retain a record of the past, a “hard copy” of memory. In the process of destroying the negative film, the authors create something new and by doing so are afforded the opportunity to revisit memories and their materialization within photographic media. In theoretical terms, the article focuses on the notion of “repeatability” as a trope that foregrounds the intertwining of artistic and scientific approaches. Collaborations like after | image facilitate the development of knowledge that is underpinned by both aesthetic qualities and experimental design and is thus both artistically and scientifically “true” at the same time.

scholarly journals Nutritional Requirement of Sugarcane Cultivars

2018 ◽  
Vol 10 (4) ◽  
pp. 361 ◽  
Author(s):  
Vinicius S. G. da Silva ◽  
Mauro W. de Oliveira ◽  
Vilma M. Ferreira ◽  
Terezinha B. A. Oliveira ◽  
Elaine R. Galvão ◽  
...  
Keyword(s):  
Experimental Design ◽  
Block Design ◽  
Nutritional Requirements ◽  
Nutritional Requirement ◽  
Sugarcane Varieties ◽  
The Past ◽  
Randomized Block Design ◽  
Productive Potential ◽  
New Varieties

Sugarcane produces a large amount of biomass, extracts and accumulates high amounts of nutrients. In the literature the nutritional requirements for most cultivated varieties in the past are found, however there is little information on the new varieties currently planted. The objective of this study was to evaluate the nutritional requirement of four sugarcane varieties, currently very planted, in the cycles of plant-cane, first and second ratoon. The study was installed in a Yellow Oxisol. The experimental design was a randomized block design, with five replications, and four treatments: RB867515, RB92579, SP813250 and VAT90212. During maturation of the cane, in the three evaluation cycles, the productivity of natural biomass and the nutritional requirement of macronutrients of the varieties were determined. It was evidenced that the cultivars of sugarcane are of high productive potential and resemble the accumulation of biomass, observing a yield of 158, 128 and 107 t ha-1 in the cycles of plant-cane, first and second ratoon. Regarding the nutritional requirement, the varieties did not differ among them and expressed the following order of need in the plant-cane K > N > Ca > Mg > S > P, in the first and second ratoon, the sequence observed was K > N > Ca > S > Mg > P.

Seasonal deposition of phytodetritus to the deep-sea floor

1986 ◽  
Vol 88 ◽  
pp. 265-279 ◽  
Author(s):  
A. L. Rice ◽  
D. S. M. Billett ◽  
J. Fry ◽  
A. W. G. John ◽  
R. S. Lampitt ◽  
...  
Keyword(s):  
Deep Sea ◽  
Benthic Communities ◽  
Time Lapse ◽  
Sediment Traps ◽  
Temporal Variations ◽  
Sea Floor ◽  
Porcupine Seabight ◽  
The Past ◽  
Sea Bed ◽  
Seasonal Deposition

SynopsisEvidence has accumulated over the past twenty years to suggest that the deep-sea environment is not as constant as was at one time thought, but exhibits temporal variations related to the seasonally in the overlying surface waters. Recent results from deep-moored sediment traps suggest that this coupling is mediated through the sedimentation of organic material, while observations in the Porcupine Seabight indicate that in this region, at least, there is a major and rapid seasonal deposition of aggregated phytodetritus to the sea-floor at slope and abyssal depths.This paper summarises the results of the Porcupine Seabight studies over the past five years or so, using time-lapse sea-bed photography and microscopic, microbiological and chemical analyses of samples of phytodetritus and of the underlying sediment. The data are to some extent equivocal, but they suggest that the seasonal deposition is a regular and dramatic phenomenon and that the material undergoes relatively little degradation during its passage through the water column. The mechanisms leading to the aggregation of the phytodetritus have not been identified, and it is not yet known whether the phenomenon is geographically widespread nor whether it is of significance to the deep-living mid-water and benthic communities.

Patient-Controlled Analgesia: A Review of Effectiveness of Therapy and an Evaluation of Currently Available Devices

DICP ◽  
1989 ◽  
Vol 23 (11) ◽  
pp. 899-904 ◽  
Author(s):  
Robert P. Rapp ◽  
Brack A. Bivins ◽  
Robert A. Littrell ◽  
Thomas S. Foster
Keyword(s):  
Health Care ◽  
Pain Control ◽  
Health Care Personnel ◽  
Hard Copy ◽  
Major Advance ◽  
Patient Controlled Analgesia ◽  
The Past ◽  
Pca Method ◽  
Care Situation ◽  
Single Publication

Patient-controlled analgesia (PCA) is a major advance in the management of pain in postoperative and cancer patients. The success of PCA has resulted in a proliferation of marketed devices to administer small bolus doses of parenteral pain-control drugs at fixed intervals controlled by the patient with the push of a button. Because patients demonstrate marked individual variation in pain medication requirements, PCA devices should be able to accommodate rapidly changing requirements for drugs with a minimum amount of effort on behalf of health care personnel. Crude electronic devices were developed in the late 1960s and the early 1970s and usually consisted of a syringe pump connected to some sort of timing device. Most modern PCA devices marketed in the past five years are much more sophisticated devices that are microprocessor based and some newer devices even generate hard copy for a permanent record of drug administration. Although many such devices are available (including a totally disposable PCA device), few have undergone extensive clinical evaluation. A review of the literature shows many devices are available for use without a single publication to document the safety and utility of the device in the routine patient care situation. Use of the PCA method of pain control will grow, and all hospital-based health care personnel should become familiar with their use and limitations.

A Review of Literature Relating to Visual Fatigue

1979 ◽  
Vol 23 (1) ◽  
pp. 362-366 ◽  
Author(s):  
Wanda J. Smith
Keyword(s):  
Human Visual System ◽  
Visual Display ◽  
Hard Copy ◽  
Review Of Literature ◽  
Visual Fatigue ◽  
The Past ◽  
Scientific Organizations ◽  
The Subject ◽  
Area Of Concern

The design of workstations with visual displays has become the subject of considerable interest and concern during the past few years. One area of concern relates to the assumption that long term viewing of such displays at close focal distances may contribute to visual fatigue. A second is the effect on the human visual system of the frequent changes in surface illumination associated with display units used in combination with hard copy documents. As a consequence of these and other concerns, the popular press has published articles that have aroused the interest of various scientific organizations regarding the subject of these effects. This paper discusses a review of some of the literature regarding a limited aspect of this issue, namely the accommodation and pupillary systems as they relate to long term viewing of visual display units.

scholarly journals Small but Smart: On the Diverse Role of Small Proteins in the Regulation of Cyanobacterial Metabolism

Life ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 322
Author(s):  
Fabian Brandenburg ◽  
Stephan Klähn
Keyword(s):  
Metabolic Pathways ◽  
Chemical Compounds ◽  
Industrial Processes ◽  
Biotechnological Applications ◽  
Major Focus ◽  
The Past ◽  
Metabolic Fluxes ◽  
Reactor Technology ◽  
Small Proteins

Over the past few decades, bioengineered cyanobacteria have become a major focus of research for the production of energy carriers and high value chemical compounds. Besides improvements in cultivation routines and reactor technology, the integral understanding of the regulation of metabolic fluxes is the key to designing production strains that are able to compete with established industrial processes. In cyanobacteria, many enzymes and metabolic pathways are regulated differently compared to other bacteria. For instance, while glutamine synthetase in proteobacteria is mainly regulated by covalent enzyme modifications, the same enzyme in cyanobacteria is controlled by the interaction with unique small proteins. Other prominent examples, such as the small protein CP12 which controls the Calvin–Benson cycle, indicate that the regulation of enzymes and/or pathways via the attachment of small proteins might be a widespread mechanism in cyanobacteria. Accordingly, this review highlights the diverse role of small proteins in the control of cyanobacterial metabolism, focusing on well-studied examples as well as those most recently described. Moreover, it will discuss their potential to implement metabolic engineering strategies in order to make cyanobacteria more definable for biotechnological applications.

scholarly journals Abundance Trends for Hexanchus griseus, Bluntnose Sixgill Shark, and Hydrolagus colliei, Spotted Ratfish, Counted at an Automated Underwater Observation Station in the Strait of Georgia, British Columbia

2008 ◽  
Vol 122 (2) ◽  
pp. 124 ◽  
Author(s):  
Robert Dunbrack
Keyword(s):  
British Columbia ◽  
Relative Abundance ◽  
Time Lapse ◽  
Video Monitoring ◽  
Rocky Reef ◽  
Observation Station ◽  
Strait Of Georgia ◽  
The Past ◽  
Time Period ◽  
Hexanchus Griseus

Recordings from a time lapse video monitoring station on a shallow rocky reef in the Strait of Georgia, British Columbia, revealed a steep and continuous decline in the occurrence of Hexanchus griseus (Bluntnose Sixgill Shark) between 2001 and 2007, with relative abundance in 2006 and 2007 less than 1% of that in 2001. The relative abundance of another chondrichthyan, Hydrolagus colliei (Spotted Ratfish), decreased to 15% of 2004 levels in 2005 and 2006 and remained below 25% in 2007. There is no compelling explanation for these decreases. Over the past 25 years water temperatures have increased in the Strait of Georgia and there have been a number of El Niño warm water events, but diver observations of H. griseus at this site over the same time period give no indication of prior changes in abundance. Neither species is targeted by a fishery, but injuries, possibly related to hooking and entanglement, observed in 28% of individually identified H. griseus suggests this species may be taken locally as bycatch.

scholarly journals dbCRSR: a manually curated database for regulation of cancer radiosensitivity

Database ◽  
2018 ◽  
Vol 2018 ◽  
Author(s):  
Pengbo Wen ◽  
Junfeng Xia ◽  
Xianbin Cao ◽  
Bin Chen ◽  
Yinping Tao ◽  
...  
Keyword(s):  
Data Mining ◽  
Functional Annotation ◽  
Relevant Literature ◽  
Chemical Compounds ◽  
Multiple Strategies ◽  
The Past ◽  
Intrinsic Radiosensitivity ◽  
Pubmed Database ◽  
Non Coding Rnas ◽  
Radiotherapy Treatment

AbstractRadiotherapy is used to treat approximately 50% of all cancer patients, with varying prognoses. Intrinsic radiosensitivity is an important factor underlying the radiotherapeutic efficacy of this precise treatment. During the past decades, great efforts have been made to improve radiotherapy treatment through multiple strategies. However, invaluable data remains buried in the extensive radiotherapy literature, making it difficult to obtain an overall view of the detailed mechanisms leading to radiosensitivity, thus limiting advances in radiotherapy. To address this issue, we collected data from the relevant literature contained in the PubMed database and developed a literature-based database that we term the cancer radiosensitivity regulation factors database (dbCRSR). dbCRSR is a manually curated catalogue of radiosensitivity, containing multiple radiosensitivity regulation factors (395 coding genes, 119 non-coding RNAs and 306 chemical compounds) with appropriate annotation. To illustrate the value of the data we collected, data mining was performed including functional annotation and network analysis. In summary, dbCRSR is the first literature-based database to focus on radiosensitivity and provides a resource to better understand the detailed mechanisms of radiosensitivity. We anticipate dbCRSR will be a useful resource to enrich our knowledge and to promote further study of radiosensitivity.Database URL: http://bioinfo.ahu.edu.cn:8080/dbCRSR/

Single-cell time-lapse imaging of the dynamic control of NF-κB signalling

2007 ◽  
Vol 35 (2) ◽  
pp. 263-266 ◽  
Author(s):  
K. Sillitoe ◽  
C. Horton ◽  
D.G. Spiller ◽  
M.R.H. White
Keyword(s):  
Single Cell ◽  
Dynamic Control ◽  
Time Lapse ◽  
Nuclear Factor Κb ◽  
Network Control ◽  
Dynamic Regulation ◽  
Cellular Processes ◽  
The Past ◽  
Single Cell Imaging ◽  
Time Lapse Imaging

The transcription factor NF-κB (nuclear factor κB) regulates critical cellular processes including the inflammatory response, apoptosis and the cell cycle. Over the past 20 years many of the components of the NF-κB signalling pathway have been elucidated along with their functions. Recent research in this field has focused on the dynamic regulation and network control of this system. With key roles in so many important cellular processes, it is critical that NF-κB signalling is tightly regulated. Recently, single-cell imaging and mathematical modelling have identified that the timing of cellular responses may play an important role in the regulation of this pathway. p65/RelA (RelA) has been shown to translocate between the nucleus and cytoplasm with varying oscillatory patterns in different cell lines leading to differences in transcriptional outputs from NF-κB-regulated genes. Variations in the timing or persistence of these movements may control the maintenance and differential expression of NF-κB-regulated genes.

scholarly journals VisBio: a Flexible Open-Source Visualization Package for Multidimensional Image Data

2006 ◽  
Vol 14 (3) ◽  
pp. 6-11
Author(s):  
Curtis T. Rueden ◽  
Kevin W. Eliceiri
Keyword(s):  
Open Source ◽  
Curve Fitting ◽  
Image Data ◽  
Time Lapse ◽  
Dramatic Improvement ◽  
Exponential Curve ◽  
Lifetime Imaging ◽  
The Past ◽  
Resultant Data ◽  
Fitting Algorithm

Over the past few years there has been a dramatic improvement in microscopy acquisition techniques, in effective imaging modalities as well as raw hardware performance. As the microscopist's available tools become more sophisticated and diverse—e.g., time-lapse, Z sectioning, multispectra, lifetime, nth harmonic, polarization, and many combinations thereof—we face a corresponding increase in complexity in the software for understanding and interpreting the resultant data. With lifetime imaging, for example, it is overwhelming to study the raw numbers; instead, an exponential curve-fitting algorithm must be applied to extract meaningful lifetime values from the mass of photon counts recorded by the instrument.

scholarly journals Predictive Analysis of IPL Match Winner using Machine Learning Techniques

2019 ◽  
Vol 9 (2S) ◽  
pp. 430-435
Keyword(s):  
Machine Learning ◽  
Multivariate Regression ◽  
Time Lapse ◽  
Machine Learning Techniques ◽  
Past Performance ◽  
The Past ◽  
Premier League ◽  
Learning Techniques ◽  
Time Problem ◽  
Machine Learning Models

Artificial intelligence (AI) can be implemented using Machine Learning which allows the computing to potentially robotically study and improve from its previous experiences without being manually typed. Data can be accessed and used by the computer programs developed using Machine learning. This paper mainly focused on implementation of machine learning in the arena of sports to predict the captivating team of an IPL match. Cricket is a popular uncertain sport, particularly the T-20 format, there’s a possibility of the complete game play to change with the effect of any single over. Millions of spectators watch the Indian Premier League (IPL) every year, hence it becomes a real-time problem to compose a technique that will forecast the conclusion of matches. Many aspects and features determine the result of a cricket match each of which has a weighted impact on the result of a T20 cricket match. This paper describes all those features in detail. A multivariate regression-based approach is proposed to measure the team's points in the league. The past performance of every team determines its probability of winning a match against a particular opponent. Finally, a set of seven factors or attributes is identified that can be used for predicting the IPL match winner. Various machine learning models were trained and used to perform within the time lapse between the toss and initiation of the match, to predict the winner. The performance of the model developed are evaluated with various classification techniques where Random Forest and Decision Tree have given good results.

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