A case of two spellings for Humboldt’s blue-winged mosquito (Diptera: Culicidae)

Zootaxa ◽  
2021 ◽  
Vol 4974 (1) ◽  
pp. 191-192
Author(s):  
RALPH E. HARBACH ◽  
NEAL L. EVENHUIS
Keyword(s):  
Mosquito Species ◽  
Know How ◽  
The Past ◽  
The Poor ◽  
Magdalena River ◽  
Perceived Color ◽  
Dark Blue

While adding taxon names to the Systema Dipterorum database (Evenhuis & Pape 2021), one of us (NLE) discovered that Humboldt (1819) had spelled the proposed name of a nominal mosquito species in two ways. He described the species, which was found in swampy places along the Magdalena River near Tenerife, Colombia, as Culex cyanopennis on page 340 and afterwards referred to it as Culex cyanopterus on pages 345 and 349. Both names have the same meaning: cyano- (Gr. kyanos, dark blue), pennis (L. penna, feather, wing) and pteron (Gr. feather, wing). The species was named for the perceived color of the wings: “Alæ cæruleæ, splendore semi-metallico…” (wings blue, a bright semi-metallic). On page 345, Humboldt states, translated from the French: “We have been informed in the Rio de la Magdalena that in Simitì no other Culex than the jejen [je·jén: Sp., gnat, mosquito] was known in the past. You can spend the night there quietly, because the jejen is not a nocturnal insect. Since the year 1801, the big blue-winged mosquito (Culex cyanopterus) has shown itself in such abundance that the poor inhabitants of Simitì do not know how to get a peaceful sleep.” Thus, in addition to having the same meaning, the two names are associated with the same locality. 

High-Resolution, Low-Voltage SEM of Cell Wall Regeneration of Yeast Shizosaccharomyces Pombe Protoplasts

1988 ◽  
Vol 46 ◽  
pp. 208-211
Author(s):  
M. Osumi ◽  
N. Yamada ◽  
T. Nagatani
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Low Voltage ◽  
Cell Wall Regeneration ◽  
The Past ◽  
The Poor ◽  
Probe Size ◽  
Beam Damage ◽  
Biological Field ◽  
Scanning Electron

Even though many early workers had suggested the use of lower voltages to increase topographic contrast and to reduce specimen charging and beam damage, we did not usually operate in the conventional scanning electron microscope at low voltage because of the poor resolution, especially of bioligical specimens. However, the development of the “in-lens” field emission scanning electron microscope (FESEM) has led to marked inprovement in resolution, especially in the range of 1-5 kV, within the past year. The probe size has been cumulated to be 0.7nm in diameter at 30kV and about 3nm at 1kV. We have been trying to develop techniques to use this in-lens FESEM at low voltage (LVSEM) for direct observation of totally uncoated biological specimens and have developed the LVSEM method for the biological field.

Theodore W. Schultz. The Economics of Being Poor. Oxford: Blackwell. 1993. ix+340 pp.+ Index. Hardbound. £ 40.00.

1995 ◽  
Vol 34 (1) ◽  
pp. 84-85
Author(s):  
Mir Annice Mahmood
Keyword(s):  
Economic Policy ◽  
Human Capital ◽  
Policy Formulation ◽  
The Past ◽  
The Poor ◽  
Logical Sequence ◽  
Standards Of Living ◽  
Economic Journals ◽  
Material Conditions ◽  
Demand For Children

Improving the material conditions of the poor has been the main focus of economic policy formulation for the past fifty years or so. Thus, in this connection, a vast body of literature has been published which deals with such issues as identifying the poor and suggesting remedies to alleviate their lot. The book by Theodore W. Schultz deals specifically with the economics of the poor. The book is primarily a collection of articles the author wrote over a fortyyear period (1950-1990), and these have been published previously in a number of leading economic journals. The articles have been grouped under three headings: "Most People Are Poor"; "Investing in Skills and Knowledge"; and "Effects of Human Capital". The articles basically deal with the concept of human capital. There is a logical sequence to the articles that make up this book; the poor are identified and steps are then suggested to improve their standing. Issues such as women's economic emancipation and the demand for children are highlighted in the collection of articles dealing with these two subjects. By investing in themselves through education, the poor raise their level of skills, and thus their level of wages/salaries, allowing them to enjoy higher standards of living.

scholarly journals Portrait of the artist as a philosopher

2021 ◽  
pp. 105971232199468
Author(s):  
Jeannette Pols
Keyword(s):  
Know How ◽  
The Past ◽  
Aesthetic Practice ◽  
The Creation ◽  
The Aesthetic ◽  
The Relationship

The response asks about the relationship between artist and audience in the RAAAF artworks. Is the artist an Autonomous Innovator who breaches the ties with the past and the environment? Or is the aesthetic practice located in the creation of relationships around these objects, hence expanding the artwork by using know-how, experiences and enthusiasm of the audience/users?

scholarly journals Survey of Glyphosate-Resistant Junglerice Accessions in Dicamba-Resistant Crops in Tennessee

2020 ◽  
pp. 1-31
Author(s):  
Clay M. Perkins ◽  
Thomas C. Mueller ◽  
Lawrence E. Steckel
Keyword(s):  
Resistance Factor ◽  
Relative Resistance ◽  
Roundup Ready ◽  
The Past ◽  
Growing Seasons ◽  
The Poor

Abstract Junglerice has become a major weed in Tennessee cotton and soybean fields. Glyphosate has been relied upon to control these accessions over the past two decades but in recent years cotton and soybean producers have reported junglerice escapes after glyphosate + dicamba and/or clethodim applications. In the growing seasons of 2018 and 2019, a survey was conducted of weed escapes in dicamba-resistant crops. Junglerice was the most prevalent weed escape in these dicamba-resistant (Roundup Ready Xtend®) cotton and soybean fields in both years of the study. In 2018 and 2019, junglerice was found 76% and 64% of the time in dicamba-resistant cotton and soybean fields, respectively. Progeny from junglerice seeds collected during this survey was screened for glyphosate and clethodim resistance. Seventy percent of the junglerice accessions tested had an effective relative resistance factor (RRF) of 3.1 to 8.5 to glyphosate. In all, 13% of the junglerice accessions could no longer be effectively controlled with glyphosate. This research also showed that all sampled accessions could still be controlled with clethodim in a greenhouse environment but less control was observed in the field. These data would also suggest that another cause for the poor junglerice control is dicamba antagonizing the glyphosate and clethodim activity.

Quantifying the threat to archaeological sites from the erosion of cultivated soil

Antiquity ◽  
2006 ◽  
Vol 80 (309) ◽  
pp. 658-670 ◽  
Author(s):  
Keith Wilkinson ◽  
Andrew Tyler ◽  
Donald Davidson ◽  
Ian Grieve
Keyword(s):  
World Wide ◽  
Site Formation ◽  
Archaeological Sites ◽  
Site Formation Processes ◽  
Formation Processes ◽  
Know How ◽  
The Past ◽  
Nuclear Weapons Testing ◽  
Resource Managers ◽  
Soil Movements

Ploughing is probably the greatest agent of attrition to archaeological sites world-wide. In every country, every year, a bit more is shaved off buried strata and a bit more of the past becomes unreadable. On the other hand, people must eat and crops must be planted. How can the fields be best managed to get the best of both worlds? Perhaps the most pressing need for resource managers is to know how quickly a particular field is eroding: negotiation and protection is then possible. Up to now that has been difficult to measure.The new procedure presented here, which draws on the unexpected benefits of nuclear weapons testing, shows how variation in the concentration of the radioisotope 137Cs can be used to monitor soil movements over the last 40 years. The measurements allow a site's ‘life expectancy’ to be calculated, and there are some promising dividends for tracking site formation processes.

On Getting to the Future First

2000 ◽  
Vol 10 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Joanne B. Ciulla
Keyword(s):  
Business Ethics ◽  
Present Problem ◽  
American Business ◽  
Management Research ◽  
Job Tenure ◽  
Know How ◽  
The Past ◽  
Basic Assumptions ◽  
Ethics Research ◽  
Management Thinking

Abstract:This paper will discuss the uncertainty of job tenure, inequality of wages in American business, and the challenges for a creating a new social and moral compact between employer and employee. I begin by arguing that business ethics scholars missed some of the disturbing trends in management thinking because they often focused on current problems in business rather than questioning some of the basic assumptions about the way businesses are managed. As Rochefoucauld observed (albeit in a different context) we were overtaken by the evils of the present and I would argue, this was because we didn’t pay attention to the past. Business ethics research, like management research, is often ahistorical and hence tells only part of the story. If we don’t know how we got to a certain problem, it’s really difficult to see where the present problem and our solutions to it might lead us.

Common Sense Propositions

Philosophy ◽  
1973 ◽  
Vol 48 (186) ◽  
pp. 363-379
Author(s):  
A. C. Ewing
Keyword(s):  
Common Sense ◽  
Religious Beliefs ◽  
Physical Object ◽  
Human Beings ◽  
Vast Number ◽  
Know How ◽  
Justified Belief ◽  
The Past ◽  
The Right ◽  
Past Experiences

Philosophers have not been sceptical only about metaphysics or religious beliefs. There are a great number of other beliefs generally held which they have had at least as much difficulty in justifying, and in the present article I ask questions as to the right philosophical attitude to these beliefs in cases where to our everyday thought they seem so obvious as to be a matter of the most ordinary common sense. A vast number of propositions go beyond what is merely empirical and cannot be seen to be logically necessary but are still believed by everybody in their daily life. Into this class fall propositions about physical things, other human minds and even propositions about one's own past experiences based on memory, for we are not now ‘observing’ our past. The phenomenalist does not escape the difficulty about physical things, for he reduces physical object propositions, in so far as true, not merely to propositions about his own actual experience but to propositions about the experiences of other human beings in general under certain conditions, and he cannot either observe or logically prove what the experiences of other people are or what even his own would be under conditions which have not yet been fulfilled. What is the philosopher to say about such propositions? Even Moore, who insisted so strongly that we knew them, admitted that we did not know how we knew them. The claim which a religious man makes to a justified belief that is neither a matter of purely empirical perception nor formally provable is indeed by no means peculiar to the religious. It is made de facto by everybody in his senses, whether or not he realizes that he is doing so. There is indeed a difference: while everyone believes in the existence of other human beings and in the possibility of making some probable predictions about the future from the past, not everybody holds religious beliefs, and although this does not necessarily invalidate the claim it obviously weakens it.

From learning to labour to custody for the precariat

Ethnography ◽  
2018 ◽  
Vol 19 (4) ◽  
pp. 531-547 ◽  
Author(s):  
Ove Sernhede
Keyword(s):  
Social Justice ◽  
Young Adults ◽  
Public Schools ◽  
Young People ◽  
Crucial Importance ◽  
Compulsory School ◽  
High Rise ◽  
The Past ◽  
The Poor ◽  
Large Groups

The globally reported riots in the poor high-rise suburbs of Sweden’s metropolitan districts in 2013 were stark manifestations of the increased social and economic inequality of the past 30 years. Large groups of young adults acted out their unarticulated claims for social justice. In the light of the riots, it is relevant to ask whether any trace of resistance or protest can be found in the compulsory school where the young people from these neighbourhoods spend their days. The ethnography sampled for the article comes from two public schools in two poor, multi-ethnic, high-rise neighbourhoods on the outskirts of Gothenburg. The article argues that the theoretical and methodological concepts and perspectives developed by Willis still is of crucial importance to any investigation aimed at understanding the presence or absence of resistance in contemporary Swedish schools.

Some Actuarial Aspects of Unemployment Insurance

1929 ◽  
Vol 60 (2) ◽  
pp. 103-160
Author(s):  
J. G. Kyd ◽  
G. H. Maddex
Keyword(s):  
Unemployment Insurance ◽  
Public Interest ◽  
Early Years ◽  
Royal Commission ◽  
Poor Laws ◽  
The Past ◽  
The Poor ◽  
National Insurance ◽  
The Subject ◽  
The Government

Judged by the amount of space devoted to the subject in the Journal of the Institute, Unemployment Insurance has received but little attention from actuaries in the past Public interest in the problem of relieving distress due to unemployment became pronounced in the early years of the present century and led to the appointment in 1904 of a Royal Commission on the Poor Laws and, eventually, to the passing in 1911 of the first Unemployment Insurance Act. These important events found a somewhat pallid reflection in our proceedings in the form of reprints of extracts from Sir H. Llewellyn Smith's address on Insurance against Unemployment to the British Association in 1910 (J.I.A., vol. xliv, p. 511) and of Mr. Ackland's report on Part II of the National Insurance Bill (J.I.A., vol. xlv, p. 456). At a later date, when the scope of the national scheme was very greatly widened, the Government Actuary's report on the relevant measure—the Unemployment Insurance Bill 1919—was reprinted in the Journal (J.I.A., vol. lii, page 72).

scholarly journals Transfer of Knowhow and Experiences from Commercial Logistics into Humanitarian Logistics to Improve Rescue Missions in Disaster Areas

2018 ◽  
Vol 8 (3) ◽  
pp. 63
Author(s):  
Firas Rifai
Keyword(s):  
Information Technologies ◽  
Humanitarian Logistics ◽  
Management Information ◽  
Rescue Mission ◽  
Know How ◽  
The Past ◽  
Humanitarian Organizations ◽  
Past Data ◽  
Near Future ◽  
Insight Into

Reports on the news about nature or man-made catastrophes are not uncommon. We hear constantly that a human catastrophe has taken place somewhere in the world. In those cases where the infrastructure could possibly be destroyed, it becomes clear that a rescue mission is difficult to achieve. We need special rescue teams, who despite the difficult rescue mission, save lives and reduce suffering.The special organizations involved in catastrophes are called humanitarian organizations. In addition, the specific skills and abilities that these organizations have should be mainly in logistics.In this paper, the author goes into more details about humanitarian logistics and shows its importance in disaster areas. Unfortunately, these humanitarian organizations have many weaknesses and challenges. As a result, these organizations are not well developed, despite their importance. In contrast, the commercial logistics companies, which are well developed, have much strength in management, information technologies, etc.This research defines humanitarian logistics and describes its weaknesses and limitations. Furthermore, it deals with the specifics of humanitarian organizations. The special features of these organizations are their rescue missions, especially in destroyed infrastructure areas. This research demonstrates the various similarities between commercial and humanitarian logistics and points to the potential of knowledge and experience transfer from commercial logistics to humanitarian logistics.This research compares humanitarian logistics with commercial logistics. In doing so, the author tries to gain a deeper insight into the potential of transferring know-how and experience from retail logistics to humanitarian logistics in order to strengthen humanitarian logistics.The research of logistics is a very dynamic world in which humanitarian logistics is becoming increasingly important both in research and in practice. In particular, the demands on logistics in general and on humanitarian logistics, in particular, will increase significantly in the near future because it is estimated that the number and impact of both natural and human disasters is increasing (Kumar et al., 2012).Murphy (2015) analyzed the past data of catastrophes and derived a forecast for the future frequency of disasters and their impact: “Because of the increasing frequency (and severity) of disasters over the past 50 years, humanitarian logistics is likely to be an important topic into the foreseeable future”.

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