Science topics: GeologyExploration
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Exploration - Science topic
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Questions related to Exploration
I was looking for a mass budget on a subsystem level of Orion spacecraft, i.e. a listing of its mass and the contributions of the different subsystems, especially life support and structure. Does anyone know if something like this has been published?
The reference guide of NASA does not have one.
Hello, I am trying to use mdpocket (from fpocket 3.0) to analyze pockets in a MD trajectory. I am in the Pocket Exploration stage. I have a .nc trajectory file, and am trying to run fpocket on it. However, in the output, the trajectory is not aligned with my structures, even though they are centered. I think this might be because I am indicating the initial MD structure as the pdb topology file, a required parameter. I thought the point of using fpocket 3.0 was that we no longer needed pdb files, only trajectory files. What should the input pdb topology for the -f flag file be?
Currently, drugs are being used to inhibit gastric cancer, and pathways are being explored in terms of mechanism. There are many articles on the mechanism of gastric cancer, but I do not know how to choose them.Ask for advice，thank you very much.
(A)What is Exploitation and Exploration in Optimization Algorithms? (B) Describe the local and global search for the PSO, GA, ABC and ACO algorithms and compare them.
Dear Prof. Tishko N. Muhamad,
I have the following paper:
In this paper I said the following paragraph which may be the solution to your valuable question about Exploitation and Exploration:
Fig. 2 exhibits that the searching process falls into quadruple pivot points: stochastic, exploration versus exploitation, iterated (i.e. iterative), and guided:
- The searching has a stochastic nature when the set of random variables is employed in extracting a new generation, called a potential solution [9][16]. Each generation's new values of these variables are chosen stochastically in harmony with the general paradigm. On the other side, some problems are evolving stochastically at different points in time which makes the optimization hard to grasp and solve. For instance, the passengers' numbers of airlines occur stochastically which calls the airlines for implementing the statistical theories, including stochastic analysis and probability distributions, in forecasting the numbers of passengers.
- Exploration and exploitation are two supplementary activities used to explore the search space. The first one is the activity through which the search algorithm tries to explore as much broad search space as possible to evade falling in the local-optima traps. Whereas the second one is representing the activity in which the searching algorithm tries to develop the finest discovered solutions through some targeted approaches. While exploitation is the optimized outcome derived out of exploration, the progress of the search for more solutions continues in both cases to find more-optimal ones. [10][17][18]
- For highly efficient exploiting the former iteration (also called trial or time-step) to the greatest possible extent, the outcomes in the guided search are frequently improved over the course of the iteration steps where the newly generated trials are influenced by the older ones. The basic idea of that is wrapping around deliberating knowledge and extracting patterns from the former good-quality searching iterations in an effort to harmony guide the searching process in the subsequent iteration steps hoping to be in the optimal solution direction, hence the notion of “guided” is used to continuously approximate the goal based on replacing the old solutions with the new successful ones. From a more general angle, the useful information related to the optimas of the preceding iteration steps is stored on to get benefit from them in the succeeding ones. That is, the key philosophy of deriving more successful trials is coupled with building up a well-stocked knowledge store containing the past trials. [10][17][16]
- Unlike the conventional local search that stops when it gets stuck by any local optima, the guided local search makes the best use of the available features of the current optima to escape away and then form another more optimum feasible solution. In the guided search absence, an optimization algorithm (OA) inevitably takes on a longer exploratory time range that is mainly driven by the trial-and-error aspects. [10][17][18]
- - The progress of the searching process will be continuing iteratively with the same searching procedure until one or more of the predefined evaluation functions, called termination conditions or stopping criteria, imposed by the user are reached, and accordingly, the best possible candidate solution is produced. Without that, the progress of the searching mechanism will obviously be in an infinite loop [10][17]. The followings are some of the possible termination conditions that may be imposed by the user to terminate the series of iterations: the maximum number of iterations steps previously defined (i.e. no. of runs) is reached, the maximum allowable CPU computational run-time (i.e. max-CPU-time), coming across some significant evidence that an optimal solution has been achieved, the maximum number of iteration attempts that comes amid two successive developments is reached, the maximum number of iteration attempts has reached without noticing any difference or making any forward positive progress for the problem of interest, or there is no way to get more developments for the problem of interest (i.e. there is no progress) [10][17]. Related to the first termination condition, the applications of the Artificial Neural Networks (ANNs) use the name “epoch” to represent an iteration step (i.e. time-step) [10][18]. In-line with the second termination condition, it's very crucial to balance between the quality of given feasible solutions and the overall computation time frame that is utilized in generating these solutions and decide accordingly how to set up the timeout bound [10][18]. On the other hand, the last termination condition represents the case that after many generations, the solutions start approaching each other in the hope that this approaching is a good indicator that the final achieved solution is closer to the ideal solution of the problem under research [10][18]. In the report of this, there is an essential need for suitable criteria to define the quality of the acceptable solution and to decide according to that whether to stop the searching activity or not [10][17][18]. If the procedure fails to reach a visible solution or a practical compromise within the timeout bound, it is inevitably stopped [10][18].
Can anyone recommend articles on the topic: Recent Advances on Natural Gas Hydrate Exploration
Dear All,
Recently, I have looked into the Web in search for some works on Search And Rescue or guarding strategies. I have found some works related to UAV exploration in urban environment or SAR disaster site exploration. But, it was not what I really meant.
I wonder if there is any up-to-date literature (analytical, mathematical, physical, simulations maybe?) devoted to search and rescue or guarding, e.g., on the sea. I recall the stories from the time of WWII when allied vessels, after loosing contact with the submarine, started to move in circles with increasing radius. Also, there were special books prepared by mathematicians describing sequences of random turns to avoid being hit by a torpedo.
Do you know if there were any advances in the topic since then? Where the strategies using by modern SAR service are taken from?
Regards,
Michal
From the announcements of politicians, it appears that in a few years manned expeditions to the Moon will resume. On the Earth's moon, bases will be established for the preparation of a man's expedition to Mars, which may already be carried out in a dozen or so years. Manned expeditions to Mars in the perspective of a dozen or so years have already announced the US and China.
So there is a rivalry in the field of who will first make a manned trip to Mars. Will it be a similar competition as in the 1970s between the US and the USSR in the area of the then competing programs of the planned and implemented manned expedition to the Moon.
Or maybe a manned expedition to Mars will not be a competition between the biggest economic and technological powers of the world? Perhaps these planned further cosmic manned expeditions will be international expeditions, will be implemented as part of international cooperation and co-operation, and the crew of cosmonauts will be a crew composed of representatives of various countries?
What is your opinion on this matter? Should a manned space expedition to Mars be conducted as part of the international competition between competing countries or rather as part of international cooperation and cooperation?
Do you agree with me on the above matter?
In the context of the above issues, I am asking you the following question:
Is the planned space manned expedition to Mars a result of the rivalry between economic powers or their cooperation?
Please reply
I invite you to the discussion
Thank you very much
Best wishes
Do you think that man will ever leave our solar system?
Please, answer, comments.
I invite you to the discussion.
Best wishes
I have three different exploration categorical groups and need to check the difference between each category. For this, I have used the Kruskal wallies -H test which uses to test the difference between each group.
The categories were measured by several indicators and I need to test whether there is any difference between the scores generated by each indicator. ( but not within the categories).
E.g Exploration categories- A, B, C
measurement of the category "A" - Indicator 1(measured by Likert scale), Indicator 2 (measured by Likert scale), Indicator 3(measured by Likert scale).
Q1.Differences between each category were measured by the Kruskal wallies -H test. Is this correct?
Q2-What should I use to measure the difference between indicators- as these are related, can I use Friedman's mean rank?
Q3-what does Kolmogorov–Smirnov test generate? can I use it to test any of the above?
I know there's WellCAD, but I was wondering what alternatives there are.
Various metaheuristic optimization algorithms with different inspiration sources have been proposed in recent past decades. Unlike mathematical methods, metaheuristics do not require any gradient information and are not dependent on the starting point. Furthermore, they are suitable for complex, nonlinear, and non-convex search spaces, especially when near-global optimum solutions are sought after using limited computational effort. However, some of these metaheuristics are trapped in a local optimum and are not able to escape out, for example. For this purpose, numerous researchers focus on adding efficient mechanisms for enhancing the performance of the standard version of the metaheuristics. Some of them are addressed in the following references:
I will be grateful If anyone can help me to find other efficient mechanisms.
Thanks in advance.
Large amounts of research focus on the balance between Exploration and Exploitation. However, this omits the power of Selection which can turn any metaheuristic into a hill climber by rejecting all exploratory search solutions.
To engage the broader research community in this important discussion, we are organizing a Workshop on Selection to be held at CEC2021 in Krakow, Poland. Please consider participating in our event or on our project page.
List the critical solved and unsolved global/constrained/complex optimization problems, combinatorial and engineering problems?
Metaheuristic algorithms can be classified in many ways
Several Metaheuristic algorithms are proposed to solve different optimization problems, but the solved is resolved and the unsolved is still unsolved.
List the unsolved problem or the critical solved problem that need an optimal solution to help the researcher to solve the unsolved problems.
Thanks for you contributions
I would like to receive help, as I am trying to make an analysis of the ethanol PES, but the calculations are always giving error.
I use the conda-forge version of xtb (* xtb version 6.3.2 (954f15c) compiled by 'conda @ 5a45a0871d67' on 2020-07-02).
The output and input will be attached.
Thank you very much in advance!
AI Safety Issues can be categorized into five main classes including "Safe Exploration", "Scalable oversight", Avoiding “reward hacking” and “wire heading”, "Avoiding negative side effects" and "Robustness to distributional shift" (Amodei et al. (2016). Concrete Problems in AI Safety).
Can we categorize safety assurance of Evolutionary Optimisation Algorithms (e.g. Genetic Algorithm) as Safe Exploration?
Is there any approach for quantitative safety evaluation of such algorithms?
Thanks for your time and consideration.
I explored different packages (such as mgcv, MCMCglmm, glmmADMB, etc) but they all have limitations. Either they don't allow for zero-inflated, zero-altered distributions or they don't allow for temporal auto-correlation through functions as corAR() or corARMA().
Exploration for hidden treasures of oil, gas, water, minerals, man-made structure etc can be done.
I am working on autonomous visual navigation using deep reinforcement learning (DRL) for UGVs. I used valued based algorithm (Dueling-DDQN) to trained my robot in the simulation. I also applied parametric noise for better exploration. I got good results and submitted it in a good journal but got rejection. One of the reviewers asked me this question. "Why deep Q-learning + parametric noise? Is there any reason why A3C or other alternatives would not work in autonomous navigation? Why is entropy not a valid choice for exploration?"
A3C comes under policy-based algorithms which is not my area or hasn't discussed in the paper. We can achieve autonomous navigation using this method, i know, but why he raised this question? I googled about entropy for exploration and found many papers but all of them used the policy-based method with it. no one used it with a value-based method. How i can compare it with parametric noise? How i can answer this question, "Why is entropy not a valid choice for exploration?"
Anyone in this field, please answer my question. I read many articles but not found the answer.
I have a Sequoia Parrot camera. I am trying to explore how I can find the water stress of a vineyard. Is there a paper or a known procedure to do that?
Hello,
I'm working for my thesis, it would be great if some of you could share the insights and results of agile methods to make your organization ambidextrous, please.
Thanks and Best regards
Hussain
I am a Phd Student, would like to explore malware detection system. It would be great if anyone can share Malgenome project dataset as site is not active anymore.
How should an exploration project be evaluated as successful or unsuccessful? What are the main criteria? Exploration of an unknown deposit based on recent protocols or standards (such as JORC or UMREK) is enough to be successful?
In a Palestine Exploration Fund Quarterly Statement (PEFQS) article on the "History of Colonization in Modern Palestine" from 1900, the following was listed as one of the projects.
"1664 (circa.), Colbert, Minister of Louis XIV, founds a farm at Beit-Dejan, on the Plains of Sharon, near Jaffa. An grove of fine old olive trees is still pointed out as having been planted by him."
I'm looking for further information, sources, and documentation to understand this grove's location and chronology.
Shallow Gas exploration can combine conventional exploration (at deeper depths) to exploit small secondary or biogenic pools of hydrocarbon at very low depths in the subsurface. if marketed well, can add to the revenue earnings of industry players.
Exploration of various psychic abilities seemed had reached a dead end with the deterministic Newtonian physics. Now, with quantum physics gaining much progression, should psychic abilities be given more consideration to explore more and gain deeper understanding about them?
I want to know if there are recent approaches for hydrocarbon exploration using gravity data. Also, is there any recent modifications on the gravity stripping technique in hydrocarbon exploration?
Dear Ahmed,
I believe that a strong statement cannot be made regarding the limitations of gravimetry or magnetism without having evidence or data to endorse and verify them.
It happens many times that the comparison is not valid, because it is clear that seismic is a quintessential tool in reservoir characterization, especially in the case of loans in the domain of prestack elastic inversion, both, for fluid / lithology discrimination.
Such as Naeim said above, the integration of methods is the clue to solve the subsurface geometry.
But both, gravity and magnetic, are not only for Exploration stage (e.g., new frontier areas), but also it is very useful in Development or Reservoir Management: thinking about the case for instance of the 4-D Gravity Survey to characterize fluid contact in boreholes.
Even without this 4-D, gravity and magnetic aerial surveys are critical for example in areas with environmental restrictions, or logistical limitations in the stage of Reservoir Management. Thinking about the use of gravity and seismic for depth pre-salt imaging of complex hydrocarbon systems (Recóncavo Brazil / Gabon-Congo system; Santos-Campos Brazil / Kwanza – Benguela Angola).
Another example of the use of gravity anomalies in Reservoir Characterization is related with the construction of the low-frequency model to run seismic inversion. Remember that for potential method environment softwares, you can export a SEGY file with your gravity inversion, load in the seismic interpretation environment and go on with your low-frequency model previously to run the acoustic-elastic- seismic inversion workflow.
Let me show you two examples of my own experience that I compare the 3D seismic basement imaging with magnetic solutions and be careful of the sizes and the statistics that I show you, you take a better idea about the advantages.
I hope this answer will be useful for colleagues and you.
Mario E. Sigismondi
Exploration of Salar brines (containing high concentrations of dissolved salts like Lithium, Potassium, Magnesium, etc) found below the surface of dried lake-beds (Playas) is generally carried out through surface geological mapping, geophysical surveys and brine sampling through drilling.
Whether characteristic biota - both living & fossils - can be an added exploration tool?
Hello there.
I think that most of us would agree that exercise has been earmarked as one of the main lifestyle components that could be introduced in therapeutic interventions, as it is usually easy to implement by facilitators and be followed by patient populations.
Nevertheless, the physiological effects of exercise in cardiovascular diseases are usually neglected, with the main focus being given to its therapeutic effects.
To address this, we have started a new research topic in "Frontiers in Physiology", which is currently open for submission.
We would be keen to see submissions focusing on the physiological effects of exercise in different forms of cardiovascular disease - whether these are positive, indifferent or negative (which maybe the case in certain conditions or stages).
More information can be found here:
We wish to studies on the " Exploration techniques for Ground water studies in Alluvial plan of Vidhabha Region" pl suggest the advance technique to adopt for exact modelling and estimation except RS and GIS
- Purpose of the post:
I'm struggling to understand the significance of the fat-tailed distribution especially in career choice. 80000hours career guide argues that the more accurate distribution for career choice is the long-tailed one.
I'm trying to understand how the implication would differ between a normal bell-curve and a long-tailed distribution. My request: are the implications I wrote in "Part 2: Significance of the fat-tail distribution" accurate? Please focus on points 1 and 2.
Other Names: heavy-tailed distribution, long-tailed distribution, , pareto distribution
- Part 1: Description of Fat-Tail Distribution phenomenon in World Problems and Career Success in 80000hours career guide:
The guide is available for free download at https://80000hours.org/book/
"the most effective actions achieve far more than average. These big differences in expected impact mean that it’s really important to focus on the best areas. Of course, making these comparisons is really hard, but if we don’t, we could easily end up working on something with comparatively little impact. This is why many of our readers have changed which problem they work on. "p.60
"Each change took serious effort, but if changing area can enable you to have many times as much impact, and be more successful, then it’s worth it." (p.61)
"the top 10% of the most prolific elite can be credited with around 50% of all contributions, whereas the bottom 50% of the least productive workers can claim only 15% of the total work" (p. 89)
Simonton, Dean K. ʺAge and outstanding achievement: What do we know after a century of research?ʺ Psychological bulletin 104.2 (1988): 251 as cited in p.89 of 80000hours guide
"Areas like research and advocacy are particularly extreme, but a major study still found that the best people in almost any field have significantly more output than the typical person." Hunter, J. E., Schmidt, F. L., Judiesch, M. K., (1990) “Individual Differences
in Output Variability as a Function of Job Complexity”, Journal of Applied as cited in P.90 of 80000hours guide
"Moreover, success in almost any field gives you influence that can be turned into positive impact by using your position to advocate for important problems (p.91).
This all also means you should probably avoid taking a “high impact” option that you don’t enjoy, and lacks the other ingredients of job satisfaction, like engaging work". (p.91)
"Finally, because the most successful people in a field achieve far more than the typical person, choose something where you have the potential to excel. Don’t do something you won’t enjoy in order to have more impact. " (p.95)
📷
Figure Assumed (NOT actual) Bell-Curve for problems (p.59)
📷
Figure: Actual fat-tail distribution for problems (p.60)
📷
Figure: Actual Fat-Tail distribution of Careers (p.90)
- Part 2: Significance of the fat-tail distribution especially for individuals (All points are comparing fat-tail to bell-curve) :
1. It seems to me that in both distributions we have a motivation to aim for the top (obviously the top would be better) but the nature of motivation changes.
The nature of the carrot and stick changes from "aim to be among the best" because
(bell-curve carrot): if you do great things will happen to you.
(bell curve stick): if you don't, you will remain in the average and mean range
To" aim to be among the best" because
(fat-tail carrot): if you do, VERY VERY VERY great things will happen to you.
(fat-tail stick):If you don't, you will remain in the average (BELOW mean)
2. The more variance there is in a statistical sample, the wiser it is to aim to move to the exploration direction in the exploration-exploitation (deliberation-action) spectrum (the relationship between variance and value of new information). In terms of career, the variance is great so the exploration investment should be great as well.
3. Median does not equal average. The average could be misleading and the median could be misleading
4. If all other factors are moderate or weak but you have a good reason to think you can reach the top, go for it because average can be misleading, your rank is as important as your field).
5. Choosing a job at random is not advised because the median is lower than we think.
6. Even though below mean is much more likely in this distribution, probability of being a hyper-performer is higher , which makes the hyper-performer goal a more realistic goal hence, it's easier to become motivated by it.
7. Looking at the outliers becomes more important because they become more influential.
8. Pareto principle (80/20) can encourage generalist over specialization because the effort you put in one field result in a better impact if distributed over many fields but at the same time it can encourage specialization over generalism because the pareto distribution makes you want to aim for the very top because its impact is disproportionate.
9. Does the long-tailed distribution favor an "all-star" "super-star" or "SWAT" team approach of fewer more qualified people (quality over quantity)?
10. Prioritization becomes more important?
11. We often behave as if the bell-curve distribution is true while it's not. So the significance lies in adjusting our behaviour?
12. Why does personal fit become more important under the long-tailed distribution? Because the long-tailed distribution has a higher variance. If success in a specific field had zero variance, then individual differences wouldn't matter much so the person-environment fit would not be v. important because as persons change nothing changes as a result. However, the reality is that there is great variance so individual differences matter a lot (how would you "react" to a field NOT JUST how good is a career).
I have a one question about my study to the exploration geologists;
There are two methods in hydrogeochemical uranium explorations one of them is U/EC ratio and other is U concentration. Both of these parameters are using with anomaly contrast and mean+2*stdeviation(treshold value). And I am trying to find a new parameter in addition to these two parameters.
My question is;
How can I test the accuracy of the my new proposal. I have two datasets belongs uranium fields in Turkey also have any other publications. I think
for comparing, apply this known two methods to the datasets to find anomalous zones/samples and apply my suggestion. The last step is adaption of this informations with geology knowledge of field.
Am I wrong ? Is there any fault in my idea ?
Good Day,
I am interested in the following article
" An Ecological Exploration of the Internet of Toys in Early Childhood Everyday Life"
How can I get access to the whole article?
Thank you.
I need your kind advice, suggestions, and assistance. share literature, please. many thanks in advance
The mineral processing industry is increasingly facing problems with processing of secondary resources like low grade ores and other industrial wastes for a green zero waste technology and sustainable economy.
Studied data are from the outcrops or cuttings from drilled well ? If you studied samples from the exploration-development wells, did you obtain any interesting results that we can apply in our petroleum researches ?
Bulent Coşkun-Petroleum Geologist
I developed an instrument for measuring emotion perception based on the abilitybased model of emotional intelligence, with 3 types of items(scales): auditive , semantic and visual. I now need to select the items which fit best in to the model. Exploration and selection of the data with "typical itemanalysis" ( item difficulty and item discrimination) and followed factor analysis does not lead to best internal consistency (cronbach´s alpha) and factor structure. Is it possible to do factoranalysis first, select the items which best fit into desired factorstructure, by looking at the factor loadings? This is a very subjective approach, so are there any guidelines?
I want to start a philosophical discussion and ethical debate on the reasoning behind why humanity should and must become a multi-planet species.
- What do you think is the most profound and captivating reason(s) that you have to justify SpaceX and Elon Musk's goal of making humanity a multi-planetary species?
Elon said during the 68th Annual ISC on September 29th 2017:
"I think fundamentally the future is vastly more exciting and interesting if we're a spacefaring civilization and a multi-planet species than if we are not. You want to be inspired by things. You want to wake up in the morning and think the future is going to be great."
I agree with him here, but I think there is something more profound and captivating that must be addressed with regards to becoming a species that lives on more than just one planetary body. Other questions we may want to consider to help us reach this answer include:
- What are the ethical considerations we must address before colonizing other worlds?
- Do humans really deserve another planet to potentially ruin, or even sustainably terraform, if we cannot even figure out how to sustainably balance our own home world?
- One might ask why doesn't Elon use his genius to create new technologies that will advance the human race by solving some of the Earth's worst problems?
- Has he simply given up on this planet and does he therefore want a clean slate to build up from?
- Does Elon think that technological advancements resulting from the drive to become a spacefaring civilization (i.e. propellant production via. CO2 sequestration powered by 100% solar energy systems) will eventually rebound to help the Earth?
- Must we start colonizing Mars now (i.e. beginning in the year 2022) like Elon's timeline suggests? Potentially, if we wait too long, technologies to reverse climate change on Earth may not have advanced enough without the excitement of being spacefaring...
Lets see what everyone thinks about this, and let's keep it civilized in here. Try and get real profound!
I have geolocation data acquired from Intigeo geolocators devices. I am looking for the "best" R package to do it considering I am studying a seabird species.
I already know GeoLight and I just started my exploration or probGLS, but I was wondering if there are better packages to do so.
In Kimberlite Exploration, one extensively uses geophysical techniques for location the same. I am interested to know, the present state of art in data integration and GIS and remote sensing studies.
My compound have effect on delaying the growth rate of C.elegans, particularly on L3 and L4 stage. I want to explore the mechanism of this phenotype with the heterochronic pathway, but there is few papers related to this.
This is an ongoing developing project across national borders to explore what is common and what differs in difference social, academic and linguistic systems so please raise questions for us.
I have a number of years experience in the China markets marketing alcohol and other categories in the FMCG arena. I'm interested in explore collaboration and ways to contribute to this project!
I am trying to look at how the University as a contested space influenced the actions, relationships and culture of the growing feminist and gay movements in Britain during the late twentieth century.
The purpose of this project is to explore how managers of international companies use best practices around management control system (MCS) specially within the area of performance measurement.
Which area in cultural heritage preservation using computer vision techniques still need to be explored since, there are so many survey papers on Perception enhancement, restoration and preservation, monitoring,interpretation and collection analysis already.
Perhaps Human base space exploration is going to enter into next generation. A good time to get commercial benefit from available & approachable "Wealth" in Space. NASA, SPACEX, European Space Agency and other organizations are trying to explore the potential benefits in space. In this regard, there are few questions;
1) What commodities can be consider as "wealth" in space ?
2) What natural phenomenon in space can come under "space wealth" ?
3) How human can get benefit from space wealth ?
4) What are different trades other than space-tourism, communication & weather-satellites can be possible ?
5) Any other aspects plz ?
Thanks
And hopefully there is something for pre-school teacher efficacy....
Thank you!
HI, I am interested in developing a Magnetrohydrodynamic Generation project, to generate electricity from a volume of gas currently being vented to the atmosphere at an oil facility. See figure Attached.
However, I have been investigating the State of the Art in this technology for some time and I do not find any recent projects. I have generally found information about plants built in the 60s, 70s and 80s. I would like to know if anyone can tell me if the research about this technology continue, and if somebody is building plants of this type anywhere in the world. Thank you
Hi,
I'm searching for literature that deals with the comparison of orthologs between diverse species (primitive-like vs modern organisms - e.g. immune proteins in hagfish compared to mammal counterparts). Particular interest in structures/functions/pathways that exhibit profound variety between orthologs.
Perhaps a vague request but this information is required for a conversation of evolution and how it can be explored at the level of the nucleotide. Thanks
Can anyone refer me to research exploring the application of complexity theory to the criminal justice system? Or the application of complexity theory to a complex social phenomenon i.e. human trafficking?
Hi to all!
I have some difficulties to find this:
Deibis, S., Futyan, A.R.I., Ince, D.M., Morley, R.J., Seymour,
W.P. and Thompson, S., 1986. The stratigraphic framework
of the Nile Delta and its implications with respect to the
regions hydrocarbon potential. Proc. 8th Explor. Conf.,
EGPC Cairo
Can anyone help me?
Thank you!
Redis and Memcached systems performs well in hash based tables.
I am trying to explore the tree-based main memory databases.
Some researches wrote in their papers that they replace hash table with B+-tree in Redis.
But i can't find the resources about B+-tree based Redis on the internet.
I was wondering if it is possible that somebody could share the resources about B+-tree based Redis or B+tree based Memcached.
Thanks.
The n-armed bandit seems to be the most popular method to assess exploration versus exploitation, but I'm interested in learning about others, too -- especially those that might be easier to administer.
Thanks in advance for any information you may be able to provide!
I am interested to explore the effects of the first pair on the third.
My research focuses on the Alexander von Humboldt atlas pittoresque du voyage: "Vues des Cordillères". I am interested in the history and uses of "atlas", and how the concept "atlas" plus "pittoresque" set up a new way of travelling in an artistic manner in the nineteenth-century, encouraging the connection between artists and scientists.
Much interested in following the results of your research !
Exploring this question in my research studies
I'm now working on a project in which I must visualize a porphyry Cu veinlet relationships, I have a variety of cores from various deeps of an ore deposit, each core illustrates the mineralization in a specific deep, I have also the cores's coordinates.if there is any useful way for vain classification, I will accept warmly.
I eagerly look forward to hear from you through this post,
Regards
Pezhman
I have Landsat 8 downloaded from Earth explorer. The DN values shows 0-12189.7 for Band 2, 0-13479 for Band 4, 0-12323.5 for Band 3 …..How do I get the proper DN values?
There is a shale oil exploration going on in the Bazhenov Formation in Russia. The conditions there are extreme. Moreover, reserves has been estimated in eastern Siberian wilderness too. I was studying about the details of the exploration done by the exploration giants of US and Russia in that area. I want to know that what are the methods or tools that are used for the detection or exploration of shale oil reserves in such extreme conditions.
I read James March's book and find the concept very interesting.
The objective is to identify a deposit which will be the target for further exploration. Estimates of quantities are inferred based on interpretation of geological, geophysical and geochemical results.
A graben with existing and historic vein-hosted gold production on its west side has similar style veins that have hosted historic silver production on the east side. Are there regional controls on the mineralization of epithermal systems that would control Au/Ag ratio vertically and/or horizontally across a graben? Could it simply be a matter of lighter elements, such as silver, precipitating from cooling epithermal fluids at lower temperatures or pressures than heavier elements, such as gold, do?
I have written my first article and I would like to get some feedback, specially critical comments! I have thought that maybe this could be a good platform for that?
I am PhD student in History of Art, carrying out my thesis in the Department of History of Science in CCHS-CSIC (Madrid). This is my first publication about my work in progress and all the ideas about writing, sources, style, topics, etc. will be greatly appreciated. Many thanks to everyone who take time to read it and comment.
Rare earths, as their name implies, are not abundant. Rare earth minerals are very much strategic metals.
