1,819 research outputs found
Phanaeus halffterorum Edmonds 1979
No full text<i>Phanaeus halffterorum</i> Edmonds, 1979 <p>Figs 1F, 15, 18G, 19G</p> <p> <i>Phanaeus halffterorum</i> Edmonds, 1978: 321 (nomen nudum).</p> <p> <i>Phanaeus halffterorum</i> Edmonds, 1979: 99, 102–105, figs 1–3, 6–8 (in part).</p> <p> <i>Phanaeus halffterorum</i> – Halffter & Edmonds 1982: 88–89 (in part). — Anduaga & Halffter 1991: 157 (in part). — Delgado-Castillo <i>et al</i>. 1993: 125 (in part). — Deloya <i>et al</i>. 1993: 21, 39 (in part); 2014: 77 (in part). — Anduaga 2000: 125, 130 (in part). — López-Guerrero & Halffter 2000: 241 (in part). — Arnaud 2002b: 96 (in part). — Price 2005: 197 (in part); 2007: 17, figs 52–54. — Edmonds 2006: 31–32, 36, fig. 7 (in part). — Ceballos <i>et al</i>. 2009: 397. — Edmonds & Zídek 2012: 5 (in part). — Krajcik 2006: 150. — Moctezuma & Halffter 2017: 52, 54–55, fig. 23 (in part). — Moctezuma <i>et al</i>. 2017: 113–115, 118–119, 122, 130–132, figs 1–5; 2019: 253, fig. 5. — Lizardo <i>et al</i>. 2017: 273, 275, 292, fig.13 (in part). — Kohlmann <i>et al</i>. 2018: 69, 81, 88–89. — Gillett & Toussaint 2020: 2.</p> <p> <i>Phanaeus</i> (<i>Notiophanaeus</i>) <i>halffterorum</i> – Edmonds 1994: 2, 8–9, 19, 39, 41, 43–44, 101, figs 211, 213, 217–218, 221 (in part); 2003: 61, 65 (in part). — Arnaud 2002b: 95 (in part). — Edmonds & Zídek 2012: 3, 12, figs 134–135, 137, 143–147 (in part). — Lizardo <i>et al</i>. 2017: 272 (in part). — Kohlmann <i>et al</i>. 2018: 80. — Zaragoza-Caballero <i>et al</i>. 2019: 43.</p> Type material <p> <b>Holotype</b> (not studied)</p> <p>MEXICO • ♂, Edmonds 1979: 99; State of Mexico, Temascaltepec; CAS.</p> <p> <b>Paratypes revised</b> (6 ♂♂, 2 ♀♀)</p> <p> MEXICO – <b>State of Mexico</b> • 1 ♂; “ 5 km E Temascaltepec, Real de Arriba (2200 m), 10–VII–1976, fungus, oak-pine forest, W. D. Edmonds, P. Reyes, B. Kohlmann cols.”; IEXA • 1 ♀; same collection data as for preceding; TAMU • 1 ♂, 1 ♀; same collection data as for preceding; VMC • 2 ♂♂; “ 8 km W Temascaltepec, 2360 m, 11–VII–76, fungus in pine-oak forest, W. D. Edmonds, P. Reyes, B. Kohlmann cols.”; TAMU • 1 ♂; same collection data as for preceding; VMC • 1 ♂; “ Real de Arriba, VII–1932, 6300 ft, México D. F., Hinton coll., BM 1939–583 ”; TAMU.</p> Type locality <p>Mexico, State of Mexico, Temascaltepec.</p> Distribution <p>Central Trans-Mexican Volcanic Belt, State of Mexico and Morelos (Fig. 15).</p> Remarks <p> Mean length 17.4 mm (13.4–19.9 mm). The specimens from Morelos (Deloya <i>et al</i>. 1993) were not studied by us. This species was erroneously reported from Mexico City (Arnaud 2002b). This mistake is attributed to Hinton (1935), who recorded it from Real de Arriba, Mexico D.F. Real de Arriba is actually located in the State of Mexico. Despite the fact that Moctezuma <i>et al</i>. (2017) split <i>P. halffterorum</i> and <i>P. bravoensis</i>, the colouration pattern of <i>P. halffterorum</i> remains as indicated by Edmonds (1979), with bright metallic green or dark metallic blue specimens. In a review of the immature dung beetles of Scarabaeinae (Edmonds & Halffter 1978), the name <i>P. halffterorum</i> Edmonds, 1978 was published. Nevertheless, this may be considered as a nomen nudum under Article 13 of the Code (ICZN 1999). Consequently, the same name was available later for the same or a different concept under Arts 21, 50; while <i>P. halffterorum</i> Edmonds 1979 must be considered the available authorship and date.</p> <p>To the original description of the male we add that the right lobe of the endophallite copulatrix is more developed than the left lobe; the right lobe ois btusely triangular; the left lobe is obtusely rectangular; the central ridge lis ess developed than the central column (Fig. 1F). For the female can be added that the trituberculate cephalic carina has conical, nearly aligned tubercles; the middle tubercle is more raised than the lateral tubercles; the pronotal process is trituberculate, with a posterior concavity; all the tubercles are rounded; the middle tubercle is slightly more developed and projected frontally than the lateral tubercles; the pronotal midline is distinctly impressed, with superficially impressed punctures; the pronotal surface is smooth, with almost effaced punctures.</p>Published as part of <i>Moctezuma, Victor & Halffter, Gonzalo, 2021, Taxonomic revision of the Phanaeus endymion species group (Coleoptera: Scarabaeidae), with the descriptions of five new species, pp. 1-71 in European Journal of Taxonomy 747</i> on pages 21-22, DOI: 10.5852/ejt.2021.747.1333, <a href="http://zenodo.org/record/4836744">http://zenodo.org/record/4836744</a>
The Folly of a Normative Account of 'Constructivist Agents'
No full textOpen peer commentary on the article “Plasticity, Granularity and Multiple Contingency - Essentials for Conceiving an Artificial Constructivist Agent” by Manfred Füllsack. Upshot: The target article is criticised on four counts. It fails to make clear what is meant by the phrase “constructivist agent,” and whether the author is trying to define “constructivist agent” or arguing what the minimal criteria for this are (there are problems with either. It does not make clear whether weak or strong emergence is intended (there are problems with either. The arguments for a minimal level of granularity are incoherent. To summarise, the whole project has a normative flavour that seems odd given the constructivist stance it intends to argue from
BM-5102: Organizational Behavior: Reflective Critique Report
No full textThis is a Reflective Critique Report on the experiences of the author while undergoing the BM-5102: Organizational Behavior module for Master of Management under UBD
"BM Auto" marketing opportunities in social media in Latvia
No full textBakalaura darba tēma ir „Uzņēmuma SIA „BM Auto” mārketinga iespējas sociālajos medijos Latvijā”. Šajā darbā autore sniedz informāciju par to, kā mārketinga aktivitātes sociālajos medijos veidot pareizi un kā tās pilnveidot.
Bakalaura darba mērķis: izpētīt Latvijas uzņēmuma SIA „BM Auto” mārketinga iespējas sociālajos medijos. Lai šo mērķi sasniegtu, izvirzīti vairāki darba uzdevumi, kas īstenoti katrā no darba nodaļām:
1.Iegūt teorētisko bāzi par mārketinga un sociālo mediju attīstību un tendencēm;
2.Izanalizēt sociālo mediju lietotāju paradumus un uzņēmuma SIA „BM Auto” darbību sociālajos medijos;
3.Izstrādāt viena no uzņēmuma SIA „BM Auto” pārstāvētā „MINI” zīmola mārketinga pilnveidošanas plānu komunikācijai sociālajos medijos.
Bakalaura darbs sastāv no trim nodaļām:
Pirmajā nodaļā autore iegūst teorētisko bāzi par mārketinga attīstību un tendencēm, kā arī sociālo mediju attīstību un vidi Latvijā.
Otrajā nodaļā autore apraksta darbā izmantoto metodoloģiju. Trešajā nodaļā, lai veiksmīgi izstrādātu SIA „BM Auto” Latvijā pārstāvētā „MINI” zīmola mārketinga pilnveidošanas plānu komunikācijai sociālajos medijos, tiek analizētas SIA „BM Auto” mārketinga aktivitātes sociālajos medijos 2011.gadā, tiek analizēti sociālo mediju lietotāju paradumi un intervēta uzņēmuma SIA „BM Auto” mārketinga direktore Diāna Gaidaša.
Nobeigumā apkopoti secinājumi un izstrādāti priekšlikumi situācijas uzlabošanai.
Darbā pielietotās pētniecības metodes: Bakalaura darbā izmantota kvalitatīvā pētniecības metode - daļēji strukturētā intervija, kā arī kvantitatīvā pētniecības metode - anketēšana. Autore izmanto abas minētās pētniecības metodes, lai secinājumi darba nobeigumā būtu precīzāki un daudzpusīgāki.The topic of this Paper is „“BM Auto” marketing opportunities in social media in Latvia”. The author of this paper gives information on how to properly build marketing activities in social media and how to improve them.
The aim of this Paper: to analyze company’s “BM Auto” Ltd. marketing choices in the social media. To achieve this goal, a series of work tasks are proposed, and achieved in every chapter of this Paper:
1.To gain theoretical basis about marketing and the social media development and tendencies;
2.To analyze social media user habits, as well as company’s “BM Auto” Ltd. activities in the social media;
3.To work out marketing development plan for communication in the social media, for brand “MINI”, represented by company “BM Auto” Ltd.
Bachelor thesis consists of three chapters:
In the first chapter, author works out theoretical basis about marketing development tendencies, as well as development of the social media in Latvia.
In the second chapter author describes used methodology. In the third chapter, to successfully work out a marketing development plan for communication in the social media for brand “MINI”, represented by company “BM Auto” Ltd., author has looked at company’s “BM Auto” Ltd. marketing activities in the social media in the year 2011, as well the author has looked at the social media user habits. Also, company’s “BM Auto” Ltd. marketing director Diāna Gaidaša was interviewed, for more precise information.
In the last chapter, author summarizes conclusions and offers proposals to improve the situation.
The research methods used in this Paper are: qualitative research method – semi-structured interview, and quantitative research method – survey. Author uses both research methods in order for the conclusions to be more precise and extensive
Attributive Indiscernibility and the notion of BM-Spaces
No full textIn this paper, the author describes the concept of attributive indiscernibility and defines the notion of B-metric, discrete B-metric, and BM-spaces. The significance of B-metric and BM-spaces are discussed and consequently some of their characteristics are studied
BM roadmapping approach: overcoming the barriers for the implementation of Lead Time Based Pricing
No full textThis research explores the factors that challenge the implementation of Revenue Management (RM) in manufacturing industries. Previous research focused mainly on Order Management to explain how RM could be applied with studies that are mathematical by nature. However, there is no empirical study explaining the implementation process of RM in manufacturing industries. This research adopts a differential approach and methodology which aims at filling the existing implementation gap. First, to avoid vagueness, the research proposes Lead Time based Pricing as the specific RM strategy to pursue. Then, the research focuses on creating a roadmap for the RM implementation. In order to create such roadmap, the research focuses on the field of Business Model Innovation (BMI). In this field, the research describes the BM ontology and BM roadmapping, tools which will be used for constructing the roadmap. It proposes to combines BM roadmapping with the BMI process to help facilitating the task of roadmapping and finally, upon the discovery issues hindering the real implementation of RM, the research identifies BMI barriers which are, afterwards, compared with the data collected to confirm its significance on the RM (specifically LTBP) case. With the assistance of Infineon Technologies, a semiconductor manufacturer, the research approach chosen is an instrumental case study with semi-structured interviews as a data collection methodology. The data is quoted, codified and analyzed with Atlas.ti 8.0 and the information is useful to pursue the realization of the BM roadmapping, giving answer to the main research question of this research. Management of Technology (MoT
Non-commutative Edmonds’ problem and matrix semi-invariants
No full text© 2016, Springer International Publishing. In 1967, J. Edmonds introduced the problem of computing the rank over the rational function field of an n× n matrix T with integral homogeneous linear polynomials. In this paper, we consider the non-commutative version of Edmonds’ problem: compute the rank of T over the free skew field. This problem has been proposed, sometimes in disguise, from several different perspectives in the study of, for example, the free skew field itself (Cohn in J Symbol Log 38(2):309–314, 1973), matrix spaces of low rank (Fortin-Reutenauer in Sémin Lothar Comb 52:B52f 2004), Edmonds’ original problem (Gurvits in J Comput Syst Sci 69(3):448–484, 2004), and more recently, non-commutative arithmetic circuits with divisions (Hrubeš and Wigderson in Theory Comput 11:357-393, 2015. doi:10.4086/toc.2015.v011a014). It is known that this problem relates to the following invariant ring, which we call the F-algebra of matrix semi-invariants, denoted as R(n, m). For a field F, it is the ring of invariant polynomials for the action of SL (n, F) × SL (n, F) on tuples of matrices—(A, C) ∈ SL (n, F) × SL (n, F) sends (B1, … , Bm) ∈ M(n, F) ⊕m to (AB1CT, … , ABmCT). Then those T with non-commutative rank < n correspond to those points in the nullcone of R(n, m). In particular, if the nullcone of R(n, m) is defined by elements of degree ≤ σ, then there follows a poly (n, σ) -time randomized algorithm to decide whether the non-commutative rank of T is full. To our knowledge, previously the best bound for σ was O(n2·4n2) over algebraically closed fields of characteristic 0 (Derksen in Proc Am Math Soc 129(4):955–964, 2001). We now state the main contributions of this paper:We observe that by using an algorithm of Gurvits, and assuming the above bound σ for R(n, m) over Q, deciding whether or not T has non-commutative rank < n over Q can be done deterministically in time polynomial in the input size and σ.When F is large enough, we devise an algorithm for the non-commutative Edmonds problem which runs in time polynomial in (n + 1)!. Furthermore, due to the structure of this algorithm, we also have the following results.If the commutative rank and the non-commutative rank of T differ by a constant there exists a randomized efficient algorithm to compute the non-commutative rank of T. This improves upon a result of Fortin and Reutenauer, who gave a randomized efficient algorithm to decide whether the commutative and non-commutative ranks are equal.We show that σ≤ (n+ 1) !. This not only improves the bound obtained from Derksen’s work over algebraically closed field of characteristic 0 but, more importantly, also provides for the first time an explicit bound on σ for matrix semi-invariants over fields of positive characteristics. Furthermore, this does not require F to be algebraically closed
The Nature of Noise
No full textThe idea of noise is now widespread in many fields of study. However to a large extent the use of this term is unexamined. It has become part of the practice of science without entering to a significant extent as part of its explicit theory. Here I try to produce a clearer and more coherent account of the term. I start with a picture of noise from electrical engineering. I then generalise this to the widest conception: that of noise as what is unwanted. A closely related conception is noise as what is unexplained. A particular case of this later usage is where a source of randomness can be used to stand-in for this residual. I argue that noise and randomness are not the same. I explore the possible relation between noise and context, and propose a new conception of noise: namely that noise is what can result from an extra-contextual signal. I finish with an application of the analysis of noise to the relation of determinism and randomness
Bootstrapping Knowledge About Social Phenomena Using Simulation Models
No full textThere are considerable difficulties in the way of the development of useful and reliable simulation models of social phenomena, including that any simulation necessarily includes many assumptions that are not directly supported by evidence. Despite these difficulties, many still hope to develop quite general models of social phenomena. This paper argues that such hopes are ill-founded, in other words that there will be no short-cut to useful and reliable simulation models. However this paper argues that there is a way forward, that simulation modelling can be used to "boot-strap" useful knowledge about social phenomena. If each bit of simulation work can result in the rejection of some of the possible processes in observed social phenomena, even if this is about a very specific social context, then this can be used as part of a process of gradually refining our knowledge about such processes in the form of simulation models. Such a boot-strapping process will only be possible if simulation models are more carefully judged, that is a greater selective pressure is applied. In particular models which are just an analogy of social processes in computational form should be treated as "personal" rather than "scientific" knowledge. Such analogical models are useful for informing the intuition of its developers and users, but do not help the community of social simulators and social scientists to "boot-strap" reliable social knowledge. However, it is argued that both participatory modelling and evidence-based modelling can play a useful part in this process. Some kinds of simulation model are discussed with respect to their suitability for the boot-strapping of social knowledge. The knowledge that results is likely to be of a more context-specific, conditional and mundane nature than many social scientists hope for
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