scholarly journals Phylogenomic proof of Recurrent Demipolyploidization and Evolutionary Stalling of the “Triploid Bridge” in Arundo (Poaceae)

2020 ◽  
Vol 21 (15) ◽  
pp. 5247 ◽  
Author(s):  
Wuhe Jike ◽  
Mingai Li ◽  
Nicola Zadra ◽  
Enrico Barbaro ◽  
Gaurav Sablok ◽  
...  
Keyword(s):  
Molecular Dating ◽  
Complex Nature ◽  
Evolutionary Time ◽  
Statistical Framework ◽  
Outgroup Species ◽  
Poaceae Family ◽  
History Of ◽  
Triploid Bridge ◽  
Small Genus ◽  
Stable Outcome

Polyploidization is a frequent phenomenon in plants, which entails the increase from one generation to the next by multiples of the haploid number of chromosomes. While tetraploidization is arguably the most common and stable outcome of polyploidization, over evolutionary time triploids often constitute only a transient phase, or a “triploid bridge”, between diploid and tetraploid levels. In this study, we reconstructed in a robust phylogenomic and statistical framework the evolutionary history of polyploidization in Arundo, a small genus from the Poaceae family with promising biomass, bioenergy and phytoremediation species. Through the obtainment of 10 novel leaf transcriptomes for Arundo and outgroup species, our results prove that recurrent demiduplication has likely been a major driver of evolution in this species-poor genus. Molecular dating further demonstrates that the species originating by demiduplication stalled in the “triploid bridge” for evolutionary times in the order of millions of years without undergoing tetratploidization. Nevertheless, we found signatures of molecular evolution highlighting some of the processes that accompanied the genus radiation. Our results clarify the complex nature of Arundo evolution and are valuable for future gene functional validation as well as reverse and comparative genomics efforts in the Arundo genus and other Arundinoideae.

scholarly journals Anger in infancy and its implications: History of attachment in mother–child and father–child relationships as a moderator of risk

2018 ◽  
Vol 31 (04) ◽  
pp. 1353-1366 ◽  
Author(s):  
Rebecca L. Brock ◽  
Grazyna Kochanska
Keyword(s):  
Preschool Age ◽  
Complex Nature ◽  
School Age ◽  
Strange Situation ◽  
Car Seat ◽  
Early School ◽  
History Of ◽  
Early School Age ◽  
The Impact ◽  
Parent Child

AbstractGrowing research has documented distinct developmental sequelae in insecure and secure parent–child relationships, supporting a model of early attachment as moderating future developmental processes rather than, or in addition to, a source of direct effects. We explored maladaptive developmental implications of infants’ anger proneness in 102 community families. Anger was assessed in infancy through observations in the Car Seat episode and parents’ ratings. Children's security with parents was assessed in the Strange Situation paradigm at 15 months. At preschool age, child negativity (defiance and negative affect) was observed in interactions with the parent, and at early school age, oppositionality was rated by parents and teachers. Security was unrelated to infant anger; however, it moderated associations between infant anger and future maladaptive outcomes, such that highly angry infants embarked on a negative trajectory in insecure, but not in secure, parent–child dyads. For insecure, but not secure, mother–child dyads, infants’ mother-rated anger predicted negativity at preschool age. For insecure, but not secure, father–child dyads, infants’ anger in the Car Seat predicted father- and teacher-rated oppositional behavior at early school age. Results highlight the developmentally complex nature of the impact of attachment, depending on the relationship with mother versus father, type of measure, and timing of effects.

scholarly journals Comets (Existing Populations)

1994 ◽  
Vol 160 ◽  
pp. 77-94
Author(s):  
Ľ. Kresák
Keyword(s):  
Kuiper Belt ◽  
Dynamical Evolution ◽  
Oort Cloud ◽  
Survival Times ◽  
Evolutionary Time ◽  
Origin And Evolution ◽  
History Of ◽  
The Individual ◽  
Evolutionary Paths

The definition, population, extent, origin and evolution of the individual subsystems of comets and transitions between them are discussed, together with presentation of the relevant statistical data and their changes with time. The largest outer subsystems are unobservable, but their existence is documented by the necessity of progressive replenishment of the observable populations, with limited survival times. There is persuasive evidence for two different evolutionary paths, one from the Oort cloud and another from the Kuiper belt. While the extent and accuracy of the data available is increasing rapidly, the Jupiter family of comets is the only one for which the evolutionary time scales do not exceed by many orders of magnitude the history of astronomical observations. The individual comet populations differ from one another not only by the distribution of orbits, but also by the size distribution and aging rate of their members. Their dynamical evolution is coupled with disintegration processes, which make it questionable whether the present state can be interpreted as a long-term average.

scholarly journals Metode dan Pendekatan dalam Studi Islam: Pembacaan atas Pemikiran Charles J. Adams

2014 ◽  
Vol 2 (1) ◽  
pp. 27
Author(s):  
Luluk Fikri Zuhriyah
Keyword(s):  
Single Point ◽  
Belief System ◽  
Sociology Of Religion ◽  
Point Of View ◽  
Complex Nature ◽  
The West ◽  
History Of ◽  
Interesting Object ◽  
Object Of Study ◽  
Oriental Studies

<p>Islam has been an interesting object of study for both Muslims and non-Muslims over a long period of time. A number of methods and approaches have also been introduced. In due time, Islam is now no longer understood solely as a doctrine or a set of belief system. Nor is it interpreted merely as an historical process. Islam is a social system comprising of a complex web of human experience. Islam does not only consist of formal codes that individuals should look at and obey. It also contains some cultural, political and economic values. Islam is a civilization. Given the complex nature of Islam it is no longer possible to deal with it from a single point of view. An inter-disciplinary perspective is required.</p><p>In the West, social and humanities sciences have long been introduced in the study of religion; studies that put a stronger emphasis on what we currently know as the history of religion, psychology of religion, sociology of religion and so on. This kind of approach in turn, is also applied in the Western studies of the Eastern religions and communities.</p><p>Islam as a religion is also dealt with in this way in the West. It is treated as part of the oriental culture to the extent that—as Muhammad Abdul Raouf has correctly argued—Islamic studies became identical to the oriental studies. By all means, the West preceded the Muslims in studying Islam from modern perspectives; perspective that puts more emphasis on social, cultural, behavioral, political and economic aspects. Among the Western scholars that approach Islam from this angle is Charles Joseph Adams whose thought this research is interested to explore.</p>

Descriptive Biostatistics and Epidemiology for Craniofacial Surgeons: The What, Who, When, Where, How, and Why in Data Description, Analysis, Presentation, and Interpretation

FACE ◽  
2021 ◽  
pp. 273250162110529
Author(s):  
Jack C. Yu ◽  
Dhairya Shukla ◽  
Atbin Doroodchi ◽  
Ramtin Doroodchi ◽  
Hesamoldin Khodadadi ◽  
...  
Keyword(s):  
Incomplete Data ◽  
Radical Mastectomy ◽  
Complex Nature ◽  
Mathematical Methods ◽  
Level Of Evidence ◽  
Data Description ◽  
Form And Function ◽  
Vaccine Trials ◽  
History Of ◽  
And Function

Physicians often make diagnosis and treatment decisions based on incomplete data. That is why we practice medicine. We use accumulated knowledge and prior experience, individual and collective, to restore form and function of our patients to return them to normalcy with continued, durable homeostasis. However, due to the complex nature, our diagnosis may be wrong and our treatments ineffective or even harmful. The history of medicine and surgery is replete with such examples from snake oil and bloodletting to Halstedian radical mastectomy. Without knowing the governing dynamics, the cause-effect relationship is often obscure. Prospective, blinded, placebo-controlled trials provide the highest level of evidence, like the COVID vaccine trials, to determine if a treatment works. However, trials cannot explain in detail how and why a treatment works, or why it does not. Variabilities and uncertainty abound and require the correct mathematical methods to tease out the signal from the noise, causality from association. Collectively, statistics is the science of uncertainty and the extraction of reliable, useful information from raw data. The objectives of this review are to provide craniofacial surgeons with a primer in descriptive statistics: how to design investigations, collect, prepare, present, and interpret clinical data. Since large datasets at regional and national depositories represent powerful and valuable resources, and that their proper use requires a working knowledge in epidemiology, we included sections on incidence, prevalence, sensitivity, and specificity regarding diagnosis, treatments, and testing.

Studying the Qurʾan: Neither Here nor There

2020 ◽  
pp. 1-8
Author(s):  
Sarah A. Qidwai
Keyword(s):  
History Of Science ◽  
Science And Religion ◽  
Complex Nature ◽  
The West ◽  
The Third ◽  
History Of ◽  
Colonial Encounters

Abstract This paper addresses three aspects of Majid Daneshgar’s monograph Studying the Qurʾan in the Muslim Academy. The first part looks at the complexities around the lack of coherence between the Muslim Academy and so-called “Western” Institutions. Drawing on some examples from my own life, I will address the hesitance to embrace sources from the West as highlighted by Daneshgar. Then, I will present an example from the “Western Academy” that speaks to a broader audience across this divide. The second part of this paper will address the phenomenon of trying to find scientific proofs in the Qur‘an and the issues around those attempts in the field of the history of science and religion. Drawing on my own research, the third part of this reflection will draw on the example of Islam in India to show the complex nature of the so-called Muslim Academy and its ties to colonial encounters.

Beyond Classification

2008 ◽  
pp. 1855-1876
Author(s):  
Anna Olecka
Keyword(s):  
Data Mining ◽  
Credit Risk ◽  
Credit Card ◽  
Classification Scheme ◽  
Credit Scoring ◽  
Complex Nature ◽  
Acquisition Process ◽  
Business Objective ◽  
Simplifying Assumptions ◽  
History Of

This chapter will focus on challenges in modeling credit risk for new accounts acquisition process in the credit card industry. First section provides an overview and a brief history of credit scoring. The second section looks at some of the challenges specific to the credit industry. In many of these applications business objective is tied only indirectly to the classification scheme. Opposing objectives, such as response, profit and risk, often play a tug of war with each other. Solving a business problem of such complex nature often requires a multiple of models working jointly. Challenges to data mining lie in exploring solutions that go beyond traditional, well-documented methodology and need for simplifying assumptions; often necessitated by the reality of dataset sizes and/or implementation issues. Examples of such challenges form an illustrative example of a compromise between data mining theory and applications.

Beyond Classification

2011 ◽  
pp. 139-161
Author(s):  
Anna Olecka
Keyword(s):  
Data Mining ◽  
Credit Risk ◽  
Credit Card ◽  
Classification Scheme ◽  
Credit Scoring ◽  
Complex Nature ◽  
Acquisition Process ◽  
Business Objective ◽  
Simplifying Assumptions ◽  
History Of

This chapter will focus on challenges in modeling credit risk for new accounts acquisition process in the credit card industry. First section provides an overview and a brief history of credit scoring. The second section looks at some of the challenges specific to the credit industry. In many of these applications business objective is tied only indirectly to the classification scheme. Opposing objectives, such as response, profit and risk, often play a tug of war with each other. Solving a business problem of such complex nature often requires a multiple of models working jointly. Challenges to data mining lie in exploring solutions that go beyond traditional, well-documented methodology and need for simplifying assumptions; often necessitated by the reality of dataset sizes and/or implementation issues. Examples of such challenges form an illustrative example of a compromise between data mining theory and applications.

Linguistic ideology and the pre-modern English Bible

2019 ◽  
Vol 14 (1) ◽  
pp. 61-74
Author(s):  
Elizabeth Bell Canon
Keyword(s):  
Religious Beliefs ◽  
Complex Nature ◽  
Sacred Text ◽  
Anglo Saxon ◽  
Linguistic Ideology ◽  
History Of ◽  
Linguistic Argument ◽  
Norman Invasion ◽  
The Prestige

Abstract Can the prestige of a language be an argument for the translation of a sacred text? Conversely, if a language is perceived as substandard, is that an argument against translation? In the history of the English Bible, scholars and theologians have argued both for and against a vernacular scripture, but the debate has not always been based on religious beliefs. Following the Norman Invasion of 1066, the translation debate shifted from the religious to the linguistic. In other words, the argument against translation became based on the perception that English was “too rude” to properly convey the complex nature of Holy Scripture. Reformers like William Tyndale protested this view, arguing that the linguistic argument against a Bible in the vernacular really masked an almost maniacal desire on the part of the ecclesiastical establishment to control the message. This paper takes a closer look at historical arguments for and against an English Bible from the Anglo-Saxon period through the Tyndale Bible.

scholarly journals Plastome Phylogenomic and Biogeographical Study on Thuja (Cupressaceae)

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Kole F. Adelalu ◽  
Xu Zhang ◽  
Xiaojian Qu ◽  
Jacob B. Landis ◽  
Jun Shen ◽  
...  
Keyword(s):  
North America ◽  
East Asia ◽  
Potential Effect ◽  
Molecular Dating ◽  
Disjunct Distribution ◽  
Land Bridge ◽  
Biogeographic History ◽  
Extant Species ◽  
History Of ◽  
Phylogenomic Analyses

Investigating the biogeographical disjunction of East Asian and North American flora is key to understanding the formation and dynamics of biodiversity in the Northern Hemisphere. The small Cupressaceae genus Thuja, comprising five species, exhibits a typical disjunct distribution in East Asia and North America. Owing to obscure relationships, the biogeographical history of the genus remains controversial. Here, complete plastomes were employed to investigate the plastome evolution, phylogenetic relationships, and biogeographic history of Thuja. All plastomes of Thuja share the same gene content arranged in the same order. The loss of an IR was evident in all Thuja plastomes, and the B-arrangement as previously recognized was detected. Phylogenomic analyses resolved two sister pairs, T. standishii-T. koraiensis and T. occidentalis-T. sutchuenensis, with T. plicata sister to T. occidentalis-T. sutchuenensis. Molecular dating and biogeographic results suggest the diversification of Thuja occurred in the Middle Miocene, and the ancestral area of extant species was located in northern East Asia. Incorporating the fossil record, we inferred that Thuja likely originated from the high-latitude areas of North America in the Paleocene with a second diversification center in northern East Asia. The current geographical distribution of Thuja was likely shaped by dispersal events attributed to the Bering Land Bridge in the Miocene and subsequent vicariance events accompanying climate cooling. The potential effect of extinction may have profound influence on the biogeographical history of Thuja.

Typification of Hyobanche sanguinea (Orobanchaceae) and the identity of Hyobanche calvescens and Hyobanche glabrata

Phytotaxa ◽  
2017 ◽  
Vol 299 (1) ◽  
pp. 132
Author(s):  
ANDREA D. WOLFE
Keyword(s):  
South Africa ◽  
Southern Africa ◽  
Type Specimens ◽  
History Of Botany ◽  
Cape Peninsula ◽  
Holoparasitic Plants ◽  
History Of ◽  
Small Genus

Hyobanche sanguinea (Orobanchaceae) is a member of a small genus of holoparasitic plants endemic to southern Africa. The description by Linnaeus in 1771 did not include a designated holotype, and no such material has been located in the Linnaean herbaria housed in London or Uppsala. After studying the Linnaean collection of Hyobanche specimens, and researching the history of botany in South Africa, a lectotype is here designated, and an epitype from the Cape Peninsula assigned. In addition, a study of type specimens for H. calvescens, H. glabrata, and H. rubra reveals that the type specimens for H. calvescens and H. glabrata fall within the circumscription of H. rubra, resulting in synonymization of both names.

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